Darwin's premier women's cricket league is making history, becoming the first Australian grade competition to embrace an artificial intelligence (AI) umpire review system. This innovative technology is currently being trialled during the opening rounds of the 2026 Darwin division one season, offering players a new avenue to challenge contentious leg before wicket (LBW) decisions.
How the Fulltrack AI System Works
The Fulltrack AI system operates through a high-resolution camera discreetly mounted on an umpire’s chest. This camera captures the trajectory of each delivery, feeding the data into the AI to determine whether the ball would have gone on to hit the stumps. The system, which is being trialled for a 12-month period, draws upon a vast database of approximately one million recorded deliveries to calculate the approximate path of the ball.
Arjun Verma, co-founder and chief executive of Fulltrack AI, explained that the system employs a sophisticated combination of models to arrive at its decisions. "We [use] a 2D ball detection model [combined] with a physics model and use that to extract a full 3D ball track," Verma stated. While he acknowledged that the ball-tracking accuracy of this system isn't quite on par with the multi-camera setups used in elite international cricket and tennis, which utilise up to 16 cameras for precise triangulation, he highlighted its significant cost-effectiveness. This makes the AI technology an attractive proposition for local leagues worldwide, aiming to improve the standard of umpiring and reduce on-field friction.
Verma wryly noted that the system is partly designed to "get rid of that grumpy Sunday cricketer." He elaborated, "The average club cricketer is grumpier than you might think and thinks they're not out more often than they actually are." Despite this, Verma added, "About 85 per cent of the time, even at the club level, we are reinforcing the umpire's decision."
Player and Coaching Perspectives
The introduction of the AI review system has been met with enthusiasm from players eager to contest decisions they feel are incorrect. Each women's division one team is allocated two challenges per innings. Amy Yates, captain of the PINT team, expressed her willingness to use a challenge even with a slim chance of overturning a decision. "As a batter, you only get one chance each week," Yates commented. "If you can actually get a chance to review it, it's going to go a long way, because cricket can be a harsh game."
The benefits of the system extend beyond player appeals. Will Glover, coach of PINT's men's side, found the data provided by the platform to be incredibly useful from a coaching standpoint. He believes the AI is "not far off" being trialled in men's games. "I was a little sceptical at first, how it would work in game settings, but the actual data we've received back [has] been awesome," Glover said. "Being able to get really accurate pitch maps has been really beneficial for our bowling group, and also getting up close with our batters has been good."
Encouraging Umpiring and Future Prospects
The trial is being supported by most of the Top End women's teams, with Nightcliff Cricket Club being the sole exception. Nightcliff president Josh Smith cited the financial commitment as the reason for their non-participation, stating, "The trial required a significant financial commitment from the club that we ultimately deemed not to be the best use of club resources."
Karl Mayne, NT Cricket's head of clubs and competitions, explained that a key aim of the trial is to address perceptions of bias in games, particularly in those where players and coaches often have to umpire themselves. "We thought trialling it in those games which were self-umpired would help provide some independence to decision making, and maybe quell some arguments and conflicts," Mayne said.
Furthermore, Mayne believes that the presence of an AI review system could act as a catalyst for attracting new umpires to the sport. He suggested, "I imagine there's a fair subsection out in the community that might not be umpires because they're afraid or apprehensive about making the wrong decision, so a tool like this can alleviate some of that."
While there are currently no immediate plans to extend the trial to the men's competition, club leagues in other Australian states are keenly observing the progress of the women's trial. "We've certainly had some people from Cricket Australia and other premier competitions to say 'hey, this is interesting," Mayne remarked. "I think we're ahead of the game, and there'll be lots of eyes on what we do." The successful implementation of this AI umpire review system in Darwin could pave the way for its broader adoption across Australian cricket and potentially beyond.
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