Session Details
Tristan Tjerks
Wednesday 10 December 2025
Spot - Amstelmeer Netherlands
Board -
Chopper SpeedSlalom 53, 2026 
Fin -
Chopper ChC 28
GPS -
COROS VERTIX 2
Max 2 sec
35.12 knots
Rating
Average speed
33.21 knots (33.6 33.26 33.24 33.22 32.7)
100m
34.18 knots
250m
32.69 knots
500m
31.16 knots
500m
31.16 knots
1/2 hour
17.16 knots
1/2 hour
17.16 knots
Hour
14.97 knots
Duration
02:49:03
Hour
14.97 knots
Duration
02:49:03
Nautical Mile
26.88 knots
Alpha racing
0 knots
Distance
80.99 km
80.99 km
Wind Speed
15 knots
Wind direction
SW ( 225)
Low wind, had even to swim a bit to come back :-).
Nice first session with chopper speedslalom 53 wide, but 62/70wide would have been better in this conditions.
the board is awesome, Nice acceleration and feels super fast. Really Nice stance also on the boxy rails! I think it will also be really good on flat water.
Filter Rankings
Day Rank - speed
| Nr | Rider | Avg | ||
|---|---|---|---|---|
| 1 | |
Tristan Tjerks | 33.21 | |
| 2 | |
Rene Mienis | 32.28 | |
| 3 | |
Marcel Braas | 31.44 | |
| 4 | |
Max Shytikov | 31.24 | |
Day Rank - speed
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Tristan Tjerks | 33.21 | 35.12 | 31.16 | 26.88 | 14.97 | 80.99 | 0.00 | |
| 2 | |
Rene Mienis | 32.28 | 34.68 | 26.55 | 0.00 | 3.84 | 11.60 | 0.00 | |
| 3 | |
Marcel Braas | 31.44 | 33.69 | 29.07 | 24.86 | 10.15 | 21.87 | 13.32 | |
| 4 | |
Max Shytikov | 31.24 | 32.84 | 29.17 | 27.43 | 21.80 | 206.37 | 21.34 | |
Wind Observation
10
11
12
13
14
15
16
17
| Time | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
|---|---|---|---|---|---|---|---|---|
| Direction | ||||||||
| Wind | 13 | 15 | 15 | 15 | 17 | 19 | 17 | 15 |
| Gust | 13 | 15 | 15 | 15 | 31 | 26 | 17 | 15 |
| Degrees | 225° | 225° | 225° | 225° | 225° | 225° | 225° | 225° |