Lawrence brothers and Webster return for 2025 edition in the US.
Team Australia will feature a defending champion Monster Energy Motocross of Nations (MXoN) roster of Jett Lawrence, Hunter Lawrence and Kyle Webster for the 2025 edition at Ironman Raceway in the United States from October 3-5.
The Lawrences are currently positioned 1-2 in the AMA Pro Motocross Championship’s 450MX division, while Webster is in position to potentially repeat as MX1 champion domestically.
Last year at Matterley Basin saw the Lawrences and Webster – who had stepped back to the 250 class as the team’s MX2 entry – capture victory as part of Team Australia for the first time in history under the leadership of US-based team manager Michael Byrne.
“The memories of last year’s victory in England are still so vivid,” explained Byrne. “It was a very emotional day, not just for Jett, Hunter and Kyle, but also for former Aussie MXoN heroes who were also at the event. It was a sweet victory for the sacrifices that so many people have made over the last five decades trying to win the Chamberlain Trophy.
“A year on, I’m delighted to welcome Jett, Hunter and Kyle and back into the fold and congratulate them on their individual performances so far in 2025. We’re certainly now in uncharted territory as the defending champion, which creates its own set of unique circumstances in such a pressure-cooker event.
“But on the flip-side, it’s a litmus test which makes us even more determined, and we won’t be leaving any stone unturned to give ourselves the best chance of going back to back. We’ve already proven we can succeed on the big stage, and I’m confident Team Australia has the work rate, temperament and speed to do it all again.”
It’s undecided which riders will be in the MXGP, Open or MX2 roles for 2025. According to Motorcycling Australia (MA), management will decide closer to the event which class each rider will contest as part of its overall strategy in a bid to again take home the Chamberlain Trophy.


