Impact of Rule 42 enforcement

The 2026 ILCA 7 Men’s World Championship, held August 25-30 in Dublin, Ireland, had winners and losers. In this report by Rory Maher, he described how the judging of Rule 42, which regulates permitted and prohibited propulsion during a race, impacted the outcome:

Rule 42 enforcement at the ILCA 7 Worlds shaped this championship as decisively as any wind shift on Dublin Bay. When defending champion Willem Wiersema retired from Race 5 on Wednesday afternoon, forced off the course by his second pumping penalty of the week, the on-water judges had done what 140 other sailors could not: they had removed the reigning world champion from contention before the Elimination Series even began.

Wiersema’s exit was not an isolated incident. It was the sharpest edge of a systemic problem. Across five qualifying races in predominantly six-to-ten-knot winds, on-water judges recorded 29 Rule 42 actions — penalties for pumping, rocking, or other prohibited propulsion techniques. In a 141-boat fleet split into two starting groups, that means roughly one in five competitors in any given race risked being flagged for body movements that, in marginal breeze, even experienced umpires struggle to distinguish from legal kinetics. – Full report