Score breakdown

The speed score is the average speed over your fastest continuous 1-minute window, multiplied by your boat's Portsmouth Yardstick factor (PY ÷ 1000), so slower-rated boats are rewarded proportionally. The highlighted segment below shows that window.

The maneuver score counts tacks, gybes, and mark roundings per hour. A 3-second sliding window checks the spread of headings across all GPS segments within it — if any two segments in the window differ by more than 45°, a maneuver is counted. This catches both sharp tacks and slow ones in light air equally well. Each dot on the map below marks a detected maneuver.

The consistency score is the fraction of the last 5 ISO weeks (ending with this session) in which you had at least one qualifying session. A perfect score means you sailed every week in that window. Each square below represents one of those weeks; purple = at least one scored session that week.