Session Details
Wessel Douma
Monday 3 August 2026
GPS
COROS VERTIX
Average speed
28.67 kts (31.45 28.68 28.27 27.63 27.33)
100m
31.84 kts
250m
30.93 kts
500m
27.27 kts
½ hour
17.6 kts
Hour
14.86 kts
Duration
01:18:31
Naut. Mile
22.42 kts
Alpha
21.01 kts
Distance
35.13 km
Wind
11 knots
Gust
21 knots
Direction
E ( 90)
Top tropische sessie in zwembroek!
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Wessel Douma | 28.67 |
|
| 2 | Robert Marc Landstra | 24.08 |
|
Day Rank - speed
Avg
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Wessel Douma | 28.67 |
32.62 | 27.27 | 22.42 | 14.86 | 35.13 | 21.01 | |
| 2 | |
Robert Marc Landstra | 24.08 |
25.30 | 23.80 | 16.88 | 7.43 | 26.64 | 14.39 | |
Gear size range
Sail (m²)
7.8
avg 8.5
9.2
Board (W)
97
avg 98
99
Fin (cm)
34
avg 40
47
Wind Observation
| 🕐 | 6h | 7h | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h | 20h | 21h |
| ↗ | ||||||||||||||||
| kts | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 8 | 8 |
| kts* | 23 | 23 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 22 | 19 | 17 | 15 | 13 | 13 | 15 |
| °C | 18° | 19° | 20° | 20° | 22° | 24° | 27° | 28° | 29° | 30° | 29° | 30° | 30° | 29° | 28° | 26° |
| Time | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||||||||||
| Wind | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 8 | 8 |
| Gust | 23 | 23 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 22 | 19 | 17 | 15 | 13 | 13 | 15 |
| Degrees | 68° | 68° | 90° | 90° | 90° | 90° | 90° | 90° | 113° | 90° | 90° | 45° | 0° | 270° | 23° | 23° |
Session Achievements
| Category | Speed Type | Speed |
|---|---|---|
BestYear |
halfhour | 17.60knots |
BestYear |
mile | 22.42knots |