Race Report from the AOC Facebook page!
Ronald Völker capped a dominant qualifying performance with two straight wins, stamping his authority on the 2025 Asian Onroad Championship here at GRC.
Beyond Völker, A1 was chaotic, a lap one spin from Jin Heon Yoo burying him in the field and opening an opportunity for Alexander Hagberg and Akio Sobue. We’ll need to watch the video back to unpick all that went on from there (and we’ll get that video out as fast as we can), but the upshot of all of it was Hagberg second, a brilliant drive from Marc Rheinard from 9th on the grid to third, then Sobue and Keven Hebert picking his way through to fifth. A huge last-lap tangle between Jacob Cruz and Ji Heon Yoo in the flat-out front chicane left both cars heavily damaged.

A2 was, on paper at least, a little less chaotic. Except that it started raining again right as drivers prepared for their warmup lap, the misty rain fortunately light enough to not impact track conditions. As Völker ran away out front, a battle brewed between Jin Heon Yoo, Alexander Hagberg, and Akio Sobue. Eventually, Sobue and Yoo tangled, dropping the local driver down the order, Sobue hanging on for P2, and Marc Rheinard once again driving through the field to P3.
That left Völker an unchallenged winner over Hagberg, Sobue, Rheinard, and an impressive Hayato Ishioka.

17.5 BOOSTED: LAM DOMINANT
No surprise here either, Singapore’s Zaccheus Lam too strong in what was a powerful performance for the RC Maker pilot. The top qualifier drove to a big A1 win over Jihoon Jeon (who made big ground late) and Yeonwoo Kim, then repeated the process in A2, untroubled ahead of Kim and Taejung Park. That’s three big wins for Lam in 2025 (here, SIGP and GDC), making this something of a breakout year for the 18-year-old. He’s joined on the overall podium by Yeonwoo Kim and Jihoon Jeon after a tie-break split the pair.

MINI: CHOI THE MINI-MASTER
Yong Wan Choi continued on from his dominant qualifying performance in Mini, easing away to a five-second win over Max Park and Dy Jung in A1, and then repeating that over Max Park and Sang Bim Yim in A2. Dy Jung did enough to get to the podium behind Choi and Park.

FRONT WHEEL DRIVE: CHOI DOUBLES UP
Having been fastest all day, Yong Wan Choi put himself under pressure with a late race mistake in A1 handing the win to an ever-present Kyung Taek Kim, Chang Gyu Na a good third. In A2, Choi made no such mistake, ensuring he’d win the overall with the fastest time of the two finals, ahead of Kyung Taek Kim and Chang Gyu Na.

SUPER GT: WONIK CHOI FROM P3!
Continuing the mixed-up results in Super GT, third-placed starter Wonik Choi got around pole-sitter Sang Bin Yim in A1, Jun Sik Lee in third. In A2, Sang Bin Yim spent the bulk of the race out front, the fight for the overall entirely down to whether he could outpace Choi’s A1 time. The margin at the line just one second, Wonik Choi’s A1 time holding up, Sang Bin Yim second overall, and Gilwoong Park rounding out the podium.

Complete report (text) and pictures from AOC Facebook Page