The AFL Score Review System Explained: ARC and Hawk-Eye

The AFL score review exists to answer one narrow question: did that score happen, and what kind of score was it. It cannot review a free kick, a holding-the-ball decision, or anything else that made you shout at the television. It looks at the goal line, the posts and the ball, and it either confirms the goal umpire or overturns them.

The short version of how it works in 2026: the goal umpire makes a call, known as the soft call. If they are unsure, they ask for a review through the umpires' communication system. Staff at the AFL Review Centre, the ARC, look at the available camera angles. If the vision clearly shows the soft call was wrong, it is changed. If it does not, the soft call stands. Since April 2026 the ARC cannot start that process itself; it needs the goal umpire to ask.

That last change matters more than it sounds, and this page explains why. Five weeks after it came in, a goal umpire was knocked over at the Melbourne Cricket Ground, signalled the wrong score, nobody asked for a review, and the ARC watched an error it could no longer correct. The AFL conceded the mistake and kept the rule. For the wider Australian sport picture, start at the Australia hub or the sports index.

What the review is actually deciding

A shot at goal in Australian football has more possible outcomes than a shot in most sports, and the review has to separate them.

A goal is worth six points and requires the ball to cross the goal line between the two tall posts, having been kicked by an attacking player and not touched by anybody after that kick. A behind is worth one and covers everything else that crosses the line: a ball that goes between a goal post and a behind post, a ball touched on its way through, a ball carried over the line, and a ball rushed through by a defender. A ball that hits a goal post is a behind, not a goal. A ball that crosses the boundary line beyond the behind post is out of bounds and no score at all.

So the reviewer is not asking a single question. They are asking which of four or five things happened, and the difference between the two most common answers is five points.

• 2012Year video score review began
• 5Points between a goal and a behind
• 85Longest published 2026 review, in seconds
• 4Goal-post cameras fitted per AFLW venue

Published figures. The 85-second duration is one named incident from round seven of 2026, not an average, because the AFL does not publish review times.

Why Australian football is hard to review

Compare it with the sports that solved this first. Tennis asks whether a ball touched a defined line on a flat court. That is a geometry problem with a single moving object, and once you have enough cameras it is close to solved, which is why the Australian Open has been able to replace line judges with electronic calling at Rod Laver Arena and across the site.

Australian football asks something different. It asks whether a moving ball was touched by a moving hand, at a contested goal line, inside a pack, from angles a broadcaster chose for entertainment rather than adjudication. That is not a position problem, it is a contact-detection problem. A fingertip that alters nothing about the ball's path still turns six points into one.

Every technical limitation flows from that. Broadcast cameras have lens distortion. Frame rates mean the ball exists in discrete positions rather than continuously. A two-dimensional image of a three-dimensional event cannot always separate a hand in front of the ball from a hand touching it. The AFL has responded by adding higher frame-rate cameras, which the league has described as several times better than the previous specification, and that helps. It does not change the nature of the question.

Where it started

The AFL introduced video score review in 2012, after trialling it in the two preceding pre-season competitions. The original arrangement was modest: a reviewer sat in front of a television screen in the umpires' box at the ground, working from broadcast footage, and could be consulted by the goal, boundary and field umpires.

That design carried an obvious flaw. Broadcast coverage varied by venue and by the significance of the match. A Friday night game at the MCG had many more cameras than a Sunday afternoon fixture at a smaller ground, which meant the quality of justice available to a club depended on its timeslot.

The AFL Review Centre was built to fix that. Feeds from every match go to one facility, staffed by AFL officiating personnel working across multiple games at once, with supervisors and reviewers organised into pods. The centre first operated in an expanded form for a finals series and then became the standard arrangement.

What else the ARC does

Score review is not the ARC's only function, and the other one has more at stake.

An independent doctor sits in the review centre watching every match for head knocks. Until 2026 that doctor could order a temporary removal of a player for a formal concussion assessment, but the decision on whether the player returned rested with the club doctor. From the 2026 season the ARC doctor gained the power of mandatory permanent removal: where clear signs of concussion appear on video, the player is out of the match and into concussion protocols, and the club doctor cannot override it.

That is a genuinely unusual arrangement. A remote medical officer, watching a screen, with binding authority over a club's own doctor standing next to the player. It exists because clubs and players have historically been poor judges of their own concussions, and because the AFL is managing long-term litigation risk as well as short-term welfare.

The reviews that shaped the rules

The AFL has rewritten score review procedure repeatedly, and each rewrite followed a specific match rather than a review of the system as a whole.

Two cases are cited most often from the years before 2026. In 2018, a Jack Higgins goal for Richmond against St Kilda was overturned on review in circumstances that were later widely accepted as wrong, which fed the argument that the reviewer's threshold for overturning a soft call had drifted too low. In round four of 2023, a Lachie Jones goal for Port Adelaide against Brisbane was allowed to stand after a review that satisfied almost nobody, and the argument that time ran the other way: that the reviewer had been too reluctant to overturn.

Those two complaints are opposites, which is the structural problem. Any threshold the AFL sets will produce a season's worth of decisions criticised from one side and a different season's worth criticised from the other. The soft call convention is an attempt to make the threshold explicit rather than to find a threshold that satisfies everyone, because none exists.

The soft call and why it decides everything

The single most important concept in the system is the soft call.

The goal umpire's original on-field decision is the soft call, and it is the default. A review either replaces it with clear evidence, or it does not, in which case the soft call is confirmed. There is no third option and no unresolved verdict.

This is why goal umpires are trained never to defer. An umpire who signals nothing and asks for a review has handed the reviewer a question with no default answer, and the system has no way to resolve it. An umpire who commits to a call has at least established what happens if the footage is ambiguous, which it frequently is.

It also explains a lot of supporter frustration. When a review confirms a decision that looked wrong on television, the reviewer is not necessarily saying the decision was right. They may be saying the vision was not clear enough to change it. Those are different statements and the broadcast graphic does not distinguish them.

How a review runs

1. 1The goal umpire callsThe goal umpire commits to goal, behind, touched or out on the full. This is the soft call and it becomes the default outcome.
2. 2The umpire requests a reviewIf the goal umpire is unsure they ask for a review over the umpires' communication system. Since April 2026 nobody else can start the process.
3. 3The ARC pulls the anglesReviewers at the AFL Review Centre call up every available camera feed of the incident, including any dedicated goal-post cameras at that venue.
4. 4Post contact is checkedIf the question is whether the ball struck a post, the AFL Edge microphone in the post provides an answer the cameras usually cannot.
5. 5The evidence is weighedThe reviewers decide whether the footage clearly contradicts the soft call. Anything short of clear leaves the soft call standing.
6. 6The outcome is relayedThe decision goes back to the goal umpire, who signals it, and the score is confirmed on the ground and the scoreboard.

A description of the process as it stands after the April 2026 change. Steps are procedural, not timed, and the AFL has amended this sequence mid-season before.

The technology in the posts

Two pieces of equipment sit at the goal line beyond the ordinary cameras.

AFL Edge is a microphone embedded in the goal post, first used at AFL venues in 2019. It detects whether the ball has made contact with the post. This solves a genuinely hard case: a ball brushing the padding at speed is a millimetre-scale event, usually obscured by the ball itself from every camera angle that exists, and audio resolves it cleanly where vision cannot.

The second is goal-post camera mounting. For the 2026 AFLW season the AFL, working with Hawk-Eye, installed four new goal-post cameras at grounds including Mission Whitten Oval and Mineral Resources Park to enable reviews at venues that lacked broadcast coverage of the necessary quality. AFL executive Laura Kane described the system as providing officials with additional vision to support decision-making.

Note what that is and is not. It is more camera angles, processed by people. It is not ball-tracking, and it does not predict a trajectory the way tennis or cricket technology does.

The smart ball, and why the AFLW dropped it

The AFLW spent the 2024 and 2025 seasons using a ball with embedded tracking technology. On paper that is the more sophisticated approach: a ball that reports its own position removes the ambiguity of a two-dimensional image.

In practice officials rarely activated it, and for 2026 the AFLW replaced it with the vision-based Hawk-Eye system, explicitly to align with the men's competition. The AFLW arrangement differs in one important way from the AFL: a designated score assist official initiates every review through the umpires' communication system, rather than waiting for the goal umpire to ask.

That is the exact opposite of the model the AFL adopted in April 2026 for the men's competition. The same league now runs two different philosophies of when a review should start, in the same season, which is either a sensible experiment or an inconsistency depending on who is asked.

April 2026: the ARC steps back

In round seven of 2026 two reviews went badly in the same weekend.

At Marvel Stadium, a mark on the line to St Kilda's Rowan Marshall against West Coast took about 55 seconds to confirm. The AFL accepted the outcome was correct. Football boss Greg Swann said plainly that it took too long. At the other match, GWS were awarded a late goal to Xavier O'Halloran against North Melbourne after a review of about 85 seconds, and on subsequent examination the AFL conceded the ball had been touched by North defender Griffin Logue before it crossed the line. Swann's words were that another review showed it was touched, so that one was incorrect.

The AFL's response was to reduce the ARC's authority rather than to change its technology. From that point the ARC would review all goals while the ball was being returned to the centre, but could only intervene in a scoring decision if the goal umpire asked for a review. Swann framed the change as simplification, and as a judgement about the balance between getting a decision right and affecting the flow of the game.

Rowan Marshall mark, St Kilda v West Coast55

Xavier O'Halloran goal, GWS v North Melbourne85

The only two review durations the AFL and ABC published for that round. These are the incidents that prompted the process change, not a typical sample, and the AFL does not release review times.

Show the numbers

Two published AFL score review durations, round seven 2026

Item	Value
Rowan Marshall mark, St Kilda v West Coast	55
Xavier O'Halloran goal, GWS v North Melbourne	85

Round 12, 2026: what the change cost

Five weeks later the new rule met its first serious test at the Melbourne Cricket Ground.

In the opening minute of Carlton against Geelong, Geelong's Ollie Dempsey shinned the ball through the goal line. Goal umpire David Rodan had been accidentally knocked over by Carlton's Blake Acres at that moment. He got up and signalled a rushed behind. Under the old rules the ARC, which was watching, could have corrected it unprompted. Under the April rules it could not, and no umpire asked for a review.

Carlton won 12.16 (88) to 12.12 (84). The margin was four points. The error was worth five, because Geelong received one point instead of six. Correcting it would have reversed the result.

Geelong coach Chris Scott called it a howler and argued the ARC should be held to a higher standard. The AFL conceded the umpires should have called for a review. It also said it would not make further changes to the process as a result.

What clubs and coaches actually think

Club opinion is not uniformly against reviews, but it is uniformly against long marginal ones.

North Melbourne's Alastair Clarkson went furthest, saying he would prefer there was no technology at all and that scoring decisions were simply left to the umpires, on the basis that a degree of uncertainty is part of sport. West Coast's Andrew McQualter took the middle position most coaches hold: if reviews are used, they should be for clear-cut cases, because a touch-and-go review stops the game without materially improving the answer.

The underlying complaint is a cost-benefit one. A review that takes 85 seconds to arrive at a decision the reviewer describes as marginal has purchased a small increase in accuracy at the cost of a large interruption, in a sport whose selling point is continuous play.

The touched-off-the-boot problem

If the system has a single defining failure case, it is the ball touched a fraction of a second after it leaves the kicker's boot.

Almost every camera angle available at the moment of a set shot is positioned either behind the kicker or square to them. A defender's hand entering the frame from the side, at the same instant the ball leaves the boot, is very often obscured by the kicking leg, the ball itself, or the defender's own body. The contact lasts a few milliseconds. At standard broadcast frame rates the ball may be captured before contact and after contact with nothing in between.

The consequence is that a defender who gets a fingertip to a set shot frequently cannot prove it, and an attacking player whose kick was clean frequently cannot prove that either. In both cases the soft call decides, which means the outcome hinges on the split-second instinct of a goal umpire standing on the line with a pack in front of them.

Higher frame-rate cameras genuinely reduce this category. The AFL's move to cameras it has described as several times better than the previous specification was aimed squarely at it. But the geometry does not change: an angle that does not exist cannot be improved.

Timing, momentum and the tactical use of a review

There is no player challenge in Australian football. Nobody on either team can ask for a review, which removes an entire layer of gamesmanship that exists in cricket and, in a different form, in the NRL.

That design decision has a cost. It means a coach who can see on the bench screen that a decision was wrong has no mechanism to raise it, and no route to correcting an error other than the goal umpire independently deciding they are unsure. The round 12 error in 2026 is exactly that scenario: a mistake visible to everybody except the one person entitled to trigger the fix.

The counter-argument is that a challenge system in a game with no natural stoppages would be worse. Cricket pauses between deliveries. Rugby league pauses after a try. Australian football restarts within seconds, the ball is already back in the centre, and a retrospective challenge would mean unwinding play that has already happened. The AFL has never seriously proposed one, and this is why.

How it compares with other Australian review systems

System	Who starts it	What it can decide	Predictive tracking
AFL score review	Goal umpire only, since April 2026	Goal, behind, touched, post contact	No
AFLW score assist	A designated score assist official	Goal, behind, touched, post contact	No
Cricket DRS	The fielding or batting side, plus umpire referrals	Dismissals, including leg before wicket	Yes, ball-tracking
NRL Bunker	The referee, on referral	Tries, foul play, obstruction	No
Australian Open line calling	Automatic, no human trigger	Whether the ball was in or out	Yes, ball-tracking

Two patterns stand out. First, only the systems answering a geometric question use predictive tracking. Cricket's leg before wicket review has to project where a ball would have gone, and tennis has to place a ball relative to a line. Australian football's question is a contact question, so extra cameras are the only meaningful upgrade available.

Second, the AFL is the only one of these that has recently narrowed who can start a review. Cricket's system, which the cricket section covers in more detail, has moved the other way over time, and the NRL Bunker's remit on the rugby index has broadened rather than shrunk.

What the system does not touch

It is worth being explicit, because a large share of supporter anger about reviews is aimed at things the review has no power over.

The score review cannot look at a free kick, including one paid or missed immediately before the shot. It cannot look at a holding-the-ball decision, a push in the back, or high contact. It cannot adjudicate a mark taken in general play away from the goal line. It cannot review an out-of-bounds call, which since 2026 carries a free kick between the arcs and is therefore more consequential than it used to be. It cannot review a 50-metre penalty.

All of those belong to the field umpires and are covered on the AFL umpiring page. Where an incident during a scoring passage involves reportable conduct rather than a scoring question, it goes to the Match Review Officer instead, through the process on the AFL Tribunal page.

The accuracy question nobody can answer

The AFL does not publish a season-level score review overturn rate, an average review duration, or an error rate. That means no one outside the league can state how accurate the system is, and any figure quoted publicly is an estimate.

What exists is adjacent research. Deakin University work using 2016 data put general AFL field umpire decision accuracy at around 78 per cent, and found that figure broadly consistent with a baseline from 2000. That measures free kick decisions across a match, not goal-line reviews, and it should not be transferred across.

The absence of published data is itself an argument. A system defended on the grounds that it improves accuracy, in a competition that measures everything else obsessively, does not publish the measurement that would settle the argument.

Score reviews in finals and at neutral venues

Review quality is not uniform across the season, and the reason is camera count.

A Friday night blockbuster at the MCG carries a full broadcast complement, including angles behind the goals that a Sunday afternoon fixture at a smaller ground may not have. Finals carry more again. That means the same incident, at two different matches in the same round, can produce a conclusive review at one and an inconclusive one at the other.

The AFL Review Centre was built partly to reduce this by centralising the feeds, and the goal-post camera programme is an attempt to guarantee a floor of coverage regardless of the fixture. It is not complete, and the AFLW rollout announced for 2026 covered specific grounds rather than the whole competition. Until every venue is equipped identically, where a match is played remains a real variable in whether an error gets corrected.

Grounds outside the traditional Victorian venues are worth noting here. Matches at the Gabba and at Perth's Optus Stadium sit inside the standard broadcast package, but the AFL also plays fixtures at Marrara Oval in Darwin, Traeger Park in Alice Springs, Norwood Oval and various regional grounds, and coverage at those is thinner.

Watching a review as a spectator

The sequence is readable from the stands if you know what to look for. The goal umpire steps to the line and signals, then raises an arm or speaks into the microphone to request the review. On the big screen the vision cycles through the available angles, and the number of angles you see is a reasonable proxy for how difficult the call is.

Listen to the ground rather than watching the screen. Broadcast audio and stadium audio give different amounts of information, and at a venue like Marvel Stadium with the roof shut, the reaction to the first angle usually tells you the outcome before the decision arrives.

If a review is going to take a long time, the tell is the players. In a short review they stay set for the restart. In a long one they start walking, drinking and talking to each other, which is precisely the interruption coaches object to.

What is likely to change next

Three things are unresolved.

Whether the April 2026 restriction survives. The AFL said after the round 12 error that it would not change the process again, but the league has revisited score review procedure repeatedly since 2012 and one more incident of that kind in a final would be difficult to hold the line against.

Whether the AFL and AFLW models converge. Running an umpire-initiated system in one competition and an official-initiated system in the other is defensible as a trial and awkward as a permanent arrangement.

There is also a question the AFL has not put to clubs at all, which is whether the competition wants the certainty it is buying. Australian football went 150 years deciding scores with two people, two flags and no appeal, and the arguments that produced are part of the folk memory of the sport, from suburban grounds through to the ceremonial rounds covered on the Indigenous football page. A system that removes obvious errors and creates new arguments about marginal ones is not obviously a better trade, and Alastair Clarkson is not the only person in football who has said so out loud.

And whether the camera upgrade closes the gap. Higher frame rates genuinely reduce the number of unresolvable cases, but they cannot make a fingertip visible from an angle that does not exist. Until goal-post camera coverage is standard at every venue in both competitions, the quality of a review will still depend partly on where the match is being played.