Session Details
Mark Spierings
Tuesday 24 March 2026
Board -
Future Fly White Tiger 115, 2025 
Fin -
Gasoil Fins CHR-L 35
GPS -
COROS VERTIX 2S
Max 2 sec
29.32 knots
Rating
Average speed
28.21 knots (28.73 28.44 28.33 27.8 27.76)
100m
28.84 knots
250m
27.88 knots
500m
26.08 knots
500m
26.08 knots
1/2 hour
9.73 knots
1/2 hour
9.73 knots
Hour
8 knots
Duration
00:42:44
Hour
8 knots
Duration
00:42:44
Nautical Mile
0 knots
Alpha racing
11.52 knots
Distance
14.86 km
14.86 km
Wind Speed
0 knots
Wind direction
SW ( 270)
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Peter de Zeeuw | 33.77 | |
| 2 | Harald de Rooij | 32.50 |  |
| 3 | Werner Roeers | 30.80 | |
| 4 | Armand van Renssen | 29.74 | |
| 5 | Albert Ponsteen | 29.11 | |
| 6 | Roger van Tongeren | 28.87 | |
| 7 | Mark Spierings | 28.77 | |
| 8 | Mark Spierings | 28.21 | |
| 9 | John Overmeer | 27.42 | |
Day Rank - speed
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Peter de Zeeuw | 33.77 | 34.91 | 32.84 | 25.42 | 11.75 | 50.46 | 20.65 | |
| 2 | |
Harald de Rooij | 32.50 | 35.80 | 30.87 | 17.92 | 10.43 | 43.42 | 12.05 | |
| 3 |  |
Werner Roeers | 30.80 | 32.05 | 29.42 | 24.97 | 14.61 | 45.42 | 22.15 | |
| 4 | |
Armand van Renssen | 29.74 | 31.13 | 27.29 | 20.36 | 15.19 | 48.71 | 19.98 | |
| 5 | |
Albert Ponsteen | 29.11 | 30.70 | 27.89 | 19.60 | 9.83 | 36.22 | 17.35 | |
| 6 | |
Roger van Tongeren | 28.87 | 34.66 | 26.73 | 0.00 | 5.29 | 19.35 | 6.68 | |
| 7 | |
Mark Spierings | 28.77 | 30.09 | 26.81 | 0.00 | 6.97 | 25.19 | 14.30 | |
| 8 | |
Mark Spierings | 28.21 | 29.32 | 26.08 | 0.00 | 8.00 | 14.86 | 11.52 | |
| 9 | |
John Overmeer | 27.42 | 29.10 | 24.87 | 0.00 | 9.45 | 30.95 | 0.00 | |
Wind Observation
| 🕐 | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h |
| ↗ | ||||||||||||
| kts | 10 | 12 | 14 | 14 | 16 | 17 | 19 | 17 | 17 | 17 | 16 | 17 |
| kts* | 14 | 17 | 21 | 24 | 22 | 27 | 29 | 24 | 24 | 32 | 22 | 24 |
| °C | 8° | 9° | 10° | 10° | 11° | 12° | 13° | 13° | 13° | 13° | 13° | 13° |
| Time | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||||||
| Wind | 10 | 12 | 14 | 14 | 16 | 17 | 19 | 17 | 17 | 17 | 16 | 17 |
| Gust | 14 | 17 | 21 | 24 | 22 | 27 | 29 | 24 | 24 | 32 | 22 | 24 |
| Degrees | 203° | 203° | 225° | 203° | 225° | 225° | 225° | 225° | 225° | 225° | 203° | 203° |
Session Achievements
Achievement |
Category |
Speed Type |
Speed |
Rank |
|---|---|---|---|---|
BestYear |
halfhour |
9.73knots |
#1 | |
BestYear |
hour |
8.00knots |
#2 |