Event Page
Gerard De Groot
Sunday 2 July 2023
Spot - Zuidlaardermeer Netherlands
Board -
Starboard iSonic 90, 2011 
Fin -
Select Lightning EVO 33 
GPS -
Locosys GT-31
Max 2 sec
29 knots
Rating
Average speed
27.74 knots (28.65 27.96 27.55 27.29 27.22)
100m
28.78 knots
250m
28.21 knots
500m
27.21 knots
500m
27.21 knots
1/2 hour
17.69 knots
1/2 hour
17.69 knots
Hour
14.92 knots
Duration
02:18:50
Hour
14.92 knots
Duration
02:18:50
Nautical Mile
23.97 knots
Alpha racing
16.51 knots
Distance
80.67 km
80.67 km
Wind Speed
18 knots
Wind direction
W ( 270)
🏆 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 | Jeroen Helmers | 33.88 |
 |
| 2 | Erik Schaper | 30.49 |
|
| 3 | Gerard De Groot | 27.74 |
|
| 4 | Jakob Snip | 27.66 |
|
Day Rank - speed
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Jeroen Helmers | 33.88 |
35.59 |
31.78 |
27.01 |
0.00 |
43.15 | 21.24 |
|
| 2 | |
Erik Schaper | 30.49 |
32.47 |
29.04 |
23.85 |
15.72 |
55.58 | 21.38 |
|
| 3 | |
Gerard De Groot | 27.74 |
29.00 |
27.21 |
23.97 |
14.92 |
80.67 | 16.51 |
|
| 4 | |
Jakob Snip | 27.66 |
29.15 |
27.28 |
21.87 |
15.40 |
42.98 | 19.13 |
|
Wind Observation
| 🕐 | 6h | 7h | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h | 20h | 21h | 22h |
| ↗ | |||||||||||||||||
| kts | 8 | 10 | 10 | 11 | 15 | 14 | 14 | 16 | 15 | 14 | 18 | 16 | 15 | 9 | 12 | 10 | 10 |
| kts* | 8 | 10 | 10 | 11 | 15 | 25 | 14 | 16 | 25 | 14 | 18 | 16 | 15 | 9 | 12 | 10 | 10 |
| °C | 13° | 14° | 15° | 16° | 18° | 18° | 18° | 19° | 18° | 19° | 18° | 17° | 19° | 17° | 17° | 17° | 16° |
| Time | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | |||||||||||||||||
| Wind | 8 | 10 | 10 | 11 | 15 | 14 | 14 | 16 | 15 | 14 | 18 | 16 | 15 | 9 | 12 | 10 | 10 |
| Gust | 8 | 10 | 10 | 11 | 15 | 25 | 14 | 16 | 25 | 14 | 18 | 16 | 15 | 9 | 12 | 10 | 10 |
| Degrees | 248° | 248° | 248° | 270° | 270° | 270° | 270° | 248° | 270° | 270° | 248° | 270° | 270° | 270° | 248° | 248° | 248° |
Session Achievements
| Category | Speed Type | Speed |
|---|---|---|
BestAllTime |
500 | 27.21knots |
BestspotAllTime |
500 | 27.21knots |
BestAllTime |
avg | 27.74knots |
BestspotAllTime |
avg | 27.74knots |
BestAllTime |
halfhour | 17.69knots |