Session Details

Rob Allersma
Tuesday 9 June 2026
GPS
Locosys GT-31
Average speed
32.36 kts (33.05 32.98 32.41 31.77 31.61)
100m
33.57 kts
250m
32.91 kts
500m
31.95 kts
½ hour
13.51 kts
Hour
11.63 kts
Duration
00:58:45
Naut. Mile
22.32 kts
Alpha
19.81 kts
Distance
30.63 km
Wind
14 knots
Gust
20 knots
Direction
SW ( 270)
Om 16:00 uur op het water met grote spul en rechte skeg bij Harderwijk gevaren goed uurtje.
Op 0.05 geen 60 gem.Een draaiende wind WZW naar ZW.
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Peter de Zeeuw | 33.31 | |
| 2 | Martin van Meurs | 32.87 | |
| 3 | Rob Allersma | 32.36 | |
| 4 | Eric Wind | 29.44 | |
| 5 | Arjen Mol | 29.37 | |
| 6 | Marcel Mulder | 28.62 | |
| 7 | John Overmeer | 27.01 |
Day Rank - speed
Avg
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Peter de Zeeuw | 33.31 | 34.78 | 32.65 | 23.23 | 11.56 | 59.61 | 20.23 | ||
| 2 | Martin van Meurs | 32.87 | 35.99 | 34.77 | 0.00 | 7.06 | 24.52 | 0.00 | ||
| 3 | Rob Allersma | 32.36 | 34.10 | 31.95 | 22.32 | 11.63 | 30.63 | 19.81 | ||
| 4 | Eric Wind | 29.44 | 30.55 | 27.82 | 0.00 | 6.44 | 23.93 | 0.00 | ||
| 5 | Arjen Mol | 29.37 | 30.19 | 28.42 | 0.00 | 9.26 | 39.15 | 7.10 | ||
| 6 | Marcel Mulder | 28.62 | 29.73 | 27.03 | 13.36 | 6.90 | 22.47 | 9.81 | ||
| 7 | John Overmeer | 27.01 | 29.70 | 24.79 | 16.77 | 8.07 | 35.57 | 18.67 |
Gear size range
Sail (m²)
6.1
avg 7.3
8.7
Board (W)
57
avg 102
127
Fin (cm)
26
avg 32
39
Wind Observation
| 🕐 | 6h | 7h | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h | 20h | 21h |
| ↗ | ||||||||||||||||
| kts | 8 | 9 | 11 | 8 | 8 | 13 | 12 | 15 | 15 | 16 | 18 | 17 | 14 | 16 | 16 | 12 |
| kts* | 11 | 15 | 23 | 11 | 11 | 28 | 17 | 25 | 25 | 22 | 28 | 34 | 19 | 23 | 28 | 17 |
| °C | 12° | 13° | 14° | 15° | 16° | 16° | 17° | 17° | 17° | 17° | 17° | 18° | 17° | 17° | 14° | 13° |
| Time | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||||||||||
| Wind | 8 | 9 | 11 | 8 | 8 | 13 | 12 | 15 | 15 | 16 | 18 | 17 | 14 | 16 | 16 | 12 |
| Gust | 11 | 15 | 23 | 11 | 11 | 28 | 17 | 25 | 25 | 22 | 28 | 34 | 19 | 23 | 28 | 17 |
| Degrees | 270° | 270° | 270° | 225° | 225° | 248° | 270° | 270° | 270° | 248° | 248° | 248° | 248° | 248° | 225° | 203° |