← All races
2026-07-27 WoW
WoW · Critical Mass
Course Plot
Trim finish
Maneuver Analysis
Maneuver log
Polar Performance
% of target speed by point of sail
Target curves shown
J/80 Race Coach

True wind conditions

Tacks and gybes

Upwind performance

Power and boat handling

Boat trim

Comparison with other races

Coaching priorities

  1. Slow start to the race (high confidence). The two costliest maneuvers of the entire season (a 62.2%-loss rounding-turn and a 74.6%-loss tack) both happened in the first 15 minutes, before later tacks settled into a much better pattern (several under 34% loss). Action: review what was happening in those first two maneuvers specifically — sail setup, starting-line traffic, or simply not yet in rhythm are all plausible and worth discussing with the crew.
  2. Upwind angle and speed both slightly off target (medium confidence). TWA was 5.6° wide of optimal and boat speed only 59.6% of target — a combined shortfall rather than one dominant cause. Action: focus on both angle and speed together in this wind range (8–9 kn), rather than assuming one fix addresses everything.
  3. Gybe execution in light patches (low confidence — only 2 gybes). Both gybes happened in a light-air moment (~2 kn boat speed) and were slow (avg 16.5 s) with high loss (35.7%). Action: worth a light-air gybe drill, but treat this as a single data point, not a season-long pattern.