Session Details
Gerlof Hansma
Sunday 19 July 2026
GPS
Garmin fenix 8
Average speed
33.68 kts (34.11 34.07 33.66 33.41 33.15)
100m
34.58 kts
250m
33.73 kts
500m
32.71 kts
½ hour
21.22 kts
Hour
19.18 kts
Duration
01:32:11
Naut. Mile
27.19 kts
Alpha
18 kts
Distance
52.86 km
Wind
18 knots
Gust
33 knots
Direction
NW ( 315)
Ik heb wel eens lekkerder gesurfd, was er wel snel klaar mee.
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Nico Wierstra | 35.76 | |
| 2 | Marco Bos | 35.36 | |
| 3 | Edwin Huijbers | 34.76 | |
| 4 | Johan Bulthuis | 34.26 | |
| 5 | Peter Kuiter | 33.69 | |
| 6 | Gerlof Hansma | 33.68 | |
| 7 | Anne Evert van der Veen | 33.10 | |
| 8 | Jan Joustra | 30.74 | |
| 9 | Marcus Stevens | 30.38 | |
| 10 | Siemen Leffers | 29.84 |  |
Day Rank - speed
Avg
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Nico Wierstra | 35.76 | 37.18 | 35.53 | 28.51 | 21.41 | 105.90 | 21.61 | |
| 2 | |
Marco Bos | 35.36 | 36.19 | 34.66 | 25.59 | 17.56 | 85.53 | 21.44 | |
| 3 | |
Edwin Huijbers | 34.76 | 36.30 | 32.92 | 21.63 | 13.23 | 63.30 | 13.23 | |
| 4 | |
Johan Bulthuis | 34.26 | 35.80 | 33.76 | 26.34 | 20.14 | 113.82 | 22.04 | |
| 5 | |
Peter Kuiter | 33.69 | 35.85 | 33.05 | 23.94 | 13.36 | 48.70 | 17.61 | |
| 6 | |
Gerlof Hansma | 33.68 | 35.25 | 32.71 | 27.19 | 19.18 | 52.86 | 18.00 | |
| 7 | |
Anne Evert van der Veen | 33.10 | 34.45 | 32.80 | 24.64 | 15.82 | 48.39 | 20.33 | |
| 8 | |
Jan Joustra | 30.74 | 32.07 | 29.78 | 22.64 | 13.73 | 53.19 | 11.80 | |
| 9 | |
Marcus Stevens | 30.38 | 31.73 | 29.28 | 24.03 | 16.87 | 48.43 | 19.02 | |
| 10 | |
Siemen Leffers | 29.84 | 32.12 | 28.56 | 16.75 | 5.56 | 20.60 | 12.55 | |
Gear size range
Sail (m²)
6.5
avg 6.8
7.5
Board (W)
63
avg 101
118
Fin (cm)
34
avg 36
37
Wind Observation
| 🕐 | 6h | 7h | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h | 20h | 21h |
| ↗ | ||||||||||||||||
| kts | 17 | 19 | 15 | 17 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 17 | 16 |
| kts* | 28 | 31 | 27 | 29 | 31 | 31 | 33 | 33 | 35 | 35 | 36 | 34 | 31 | 32 | 29 | 28 |
| °C | 16° | 16° | 16° | 17° | 17° | 18° | 17° | 17° | 18° | 17° | 17° | 17° | 17° | 17° | 15° | 16° |
| Time | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||||||||||
| Wind | 17 | 19 | 15 | 17 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 17 | 16 |
| Gust | 28 | 31 | 27 | 29 | 31 | 31 | 33 | 33 | 35 | 35 | 36 | 34 | 31 | 32 | 29 | 28 |
| Degrees | 338° | 315° | 338° | 338° | 315° | 338° | 315° | 315° | 315° | 315° | 315° | 315° | 315° | 315° | 338° | 338° |