Event Page
Jan Joustra
Saturday 25 October 2025
Spot - Lauwersmeer Netherlands
Fin -
C-Fins 5.0 29 
GPS -
Locosys GW-60
Max 2 sec
34.78 knots
Rating
Average speed
32.44 knots (34.22 32.54 32.26 31.77 31.39)
100m
34.71 knots
250m
33.53 knots
500m
33 knots
500m
33 knots
1/2 hour
12.96 knots
1/2 hour
12.96 knots
Hour
12.58 knots
Duration
01:36:21
Hour
12.58 knots
Duration
01:36:21
Nautical Mile
20.91 knots
Alpha racing
14.08 knots
Distance
47.05 km
47.05 km
Wind Speed
19 knots
Wind direction
SW ( 225)
Perfecte wind en pr helemaal aan flarden gesurft van 57 naar 60
🏆 Today's Story
Get the full race story — see who won, by how much, who had the fastest peak and who showed the biggest improvement.
🌟 Personal Bests
Track personal bests across all speed categories. See who broke their all-time or year records and by how much.
🗺️ Run Map
See every run on an interactive map. Compare rider lines, analyse routes and discover what makes the fastest runs stand out.
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Nico Wierstra | 39.52 |
|
| 2 | Gerlof Hansma | 38.47 |
|
| 3 | Gerlof Hansma | 38.47 |
|
| 4 | Anne Evert van der Veen | 36.20 |
|
| 5 | Anne Fahner | 35.81 |
|
| 6 | Alwin Visker | 35.26 |
|
| 7 | Marc Roosendaal | 34.83 |
|
| 8 | Johan Bulthuis | 34.68 |
|
| 9 | Martin Koolma | 34.68 |
|
| 10 | Ivo Fellinger | 34.60 |
|
Day Rank - speed
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Nico Wierstra | 39.52 |
43.15 |
38.13 |
0.00 |
11.62 |
30.55 | 0.00 |
|
| 2 | |
Gerlof Hansma | 38.47 |
40.48 |
36.59 |
0.00 |
15.57 |
53.38 | 0.00 |
|
| 3 | |
Gerlof Hansma | 38.47 |
40.48 |
36.59 |
0.00 |
15.57 |
53.38 | 0.00 |
|
| 4 | |
Anne Evert van der Veen | 36.20 |
39.56 |
33.39 |
25.76 |
11.99 |
39.11 | 23.64 |
|
| 5 | |
Anne Fahner | 35.81 |
38.22 |
33.54 |
0.00 |
10.47 |
37.91 | 0.00 |
|
| 6 | |
Alwin Visker | 35.26 |
37.60 |
31.91 |
14.52 |
7.61 |
20.75 | 7.94 |
|
| 7 | |
Marc Roosendaal | 34.83 |
36.01 |
33.13 |
23.96 |
9.84 |
39.04 | 18.67 |
|
| 8 | |
Johan Bulthuis | 34.68 |
37.09 |
32.43 |
0.00 |
13.73 |
50.26 | 21.77 |
|
| 9 | |
Martin Koolma | 34.68 |
37.00 |
34.20 |
24.78 |
12.70 |
49.19 | 20.00 |
|
| 10 | |
Ivo Fellinger | 34.60 |
36.95 |
34.74 |
26.23 |
15.40 |
61.15 | 14.80 |
|
Wind Observation
| 🕐 | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h |
| ↗ | ||||||||||
| kts | 21 | 19 | 18 | 18 | 21 | 27 | 27 | 28 | 27 | 26 |
| kts* | 32 | 39 | 33 | 36 | 33 | 37 | 42 | 42 | 37 | 39 |
| °C | 10° | 10° | 11° | 12° | 13° | 13° | 13° | 12° | 11° | 11° |
| Time | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||||
| Wind | 21 | 19 | 18 | 18 | 21 | 27 | 27 | 28 | 27 | 26 |
| Gust | 32 | 39 | 33 | 36 | 33 | 37 | 42 | 42 | 37 | 39 |
| Degrees | 225° | 225° | 225° | 225° | 248° | 293° | 293° | 293° | 293° | 293° |
Session Achievements
| Category | Speed Type | Speed |
|---|---|---|
BestAllTime |
100 | 34.71knots |
BestspotAllTime |
100 | 34.71knots |
BestAllTime |
10sec | 34.22knots |
BestspotAllTime |
10sec | 34.22knots |
BestAllTime |
250 | 33.53knots |