Session 1
Sailing activity by Rouzbeh Kat on 11.07.2026Analytics & Coaching
Upwind speed
| Speed over ground [kn] | Velocity made good to windward (VMG) [kn] | Angle to the wind | |
|---|---|---|---|
| Overall | 4.93 kn | 3.19 kn | 49.27 |
| Starboard tack | 4.67 kn | — | 50.72 |
| Port tack | 5.29 kn | — | 47.27 |
Tacking
During the upwind legs, 4 tacks were analysed.
Tack angle
The tack angle is the change in heading through a tack — the angle between the course sailed before and after the manoeuvre. A smaller angle means a tighter, more efficient tack that keeps the boat closer to the wind, while a larger angle indicates more heading was lost during the turn. The box shows the middle 50 % of tacks (Q1–Q3), the line marks the median, and the thin bar spans the full range. Comparing starboard-to-port and port-to-starboard can reveal whether tacking is consistently better on one gybe.