Session Details
Gerlof Hansma
Sunday 14 December 2025
GPS
Garmin fenix 8
Average speed
36.35 kts (37.36 37.01 36.77 35.6 35.03)
100m
38.1 kts
250m
36.82 kts
500m
35.05 kts
½ hour
24.23 kts
Hour
24.12 kts
Duration
01:49:01
Naut. Mile
28.83 kts
Alpha
21.08 kts
Distance
72.68 km
Wind
15 knots
Gust
24 knots
Direction
SSW ( 203)
Leuke sessie, richting was erg haaks.
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Gerlof Hansma | 36.35 | |
| 2 | Marco Bos | 36.26 | |
| 3 | Bram Kloosterman | 35.79 |  |
| 4 | Anne Evert van der Veen | 34.21 | |
| 5 | Anne Fahner | 34.05 | |
| 6 | Thewes De Boer | 33.69 | |
Day Rank - speed
Avg
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Gerlof Hansma | 36.35 | 38.67 | 35.05 | 28.83 | 24.12 | 72.68 | 21.08 | |
| 2 | |
Marco Bos | 36.26 | 37.15 | 34.56 | 28.91 | 20.43 | 66.69 | 24.99 | |
| 3 | |
Bram Kloosterman | 35.79 | 37.47 | 33.96 | 30.28 | 20.05 | 64.50 | 21.76 | |
| 4 | |
Anne Evert van der Veen | 34.21 | 35.51 | 32.05 | 28.95 | 21.91 | 71.69 | 24.42 | |
| 5 | |
Anne Fahner | 34.05 | 35.52 | 31.92 | 28.15 | 16.99 | 48.19 | 19.36 | |
| 6 | |
Thewes De Boer | 33.69 | 36.13 | 31.91 | 28.36 | 21.28 | 62.33 | 23.68 | |
Gear size range
Sail (m²)
7.0
avg 7.3
7.5
Board (W)
67
avg 96
118
Fin (cm)
32
avg 34
36
Wind Observation
| 🕐 | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h |
| ↗ | ||||||||
| kts | 15 | 18 | 17 | 18 | 17 | 17 | 18 | 16 |
| kts* | 25 | 35 | 27 | 33 | 32 | 28 | 31 | 32 |
| °C | 6° | 6° | 6° | 6° | 7° | 7° | 8° | 9° |
| Time | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||
| Wind | 15 | 18 | 17 | 18 | 17 | 17 | 18 | 16 |
| Gust | 25 | 35 | 27 | 33 | 32 | 28 | 31 | 32 |
| Degrees | 203° | 203° | 203° | 203° | 203° | 203° | 203° | 203° |