Round 3 of the 2026 Australian Kart Championship in Townsville was one of Isaac's strongest weekends of the season. He qualified 2nd and won his heat race before advancing to the final.

Isaac ran 2nd into the last lap and last corner of the final before dropping back to finish 7th, later promoted to 4th after post-race penalties to other drivers.

The result moved Isaac up to 3rd in the AKC championship standings, just 15 points off the lead. His next event is at Pucka in a few weeks.