Start at the gun (wind ↓ from top, estimated)
Tracks by leg
GPS tracker tracks (bow offset is a few metres and omitted at this scale). Legs split at each boat's closest approach to the mark trackers. Tap a boat or a table row to highlight it.
Findings
Per boat
Swipe the table sideways to see later legs →
DTL: bow distance behind the line at the gun (GPS + bow offset). RC DTL: race control's own figure. Late: DTL ÷ speed toward the line. Line pos: 0% pin, 100% RC.
TWA / VMG are estimates. The boats carry no wind sensor; wind direction comes from the fleet's steady upwind tack headings (cross-checked against a weather model). VMG = distance made good along the wind ÷ leg time. Leg TWA = median |TWA| while sailing steadily. ▲ best / ▼ worst in column.