GPS-Speedsurfing


I undertook this project over Easter and thought it probably worth sharing to the technically inclined within this forum. Hopefully it'll prove to be an interesting read to anyone who's ever wondered how alphas can be calculated with minimal computational overheads. Working code is also included (written in Python) and is heavily commented to show it working in practice. https://logiqx.github.io/gps-wizard/alpha-racing/ I am also hoping that COROS can use this to fix the alpha results on their watches. As far as I can tell the APEX Pro, VERTIX and VERTIX 2 don't enforce the 50m proximity requirement.

I undertook this project over Easter and thought it probably worth sharing to the technically inclined within this forum.

Hopefully it'll prove to be an interesting read to anyone who's ever wondered how alphas can be calculated with minimal computational overheads.

Working code is also included (written in Python) and is heavily commented to show it working in practice.

https://logiqx.github.io/gps-wizard/alpha-racing/

I am also hoping that COROS can use this to fix the alpha results on their watches. As far as I can tell the APEX Pro, VERTIX and VERTIX 2 don't enforce the 50m proximity requirement.

GPS TOP 10 2024
1	Vincent Valkenaers	87,90
2	Hans Kreisel	87,08
3	Dirk Doppenberg	83,34
4	Tim Joosten	83,24
5	Tim Humphreys	82,54
6	Jacques van der Hout	82,12
7	Rolf de Ruiter	81,84
8	Patrick Oberlender	81,34
9	Wouter van Hilst	80,73
10	Matthew York	80,63
	..More..

Maand top 10
1	Vincent Valkenaers	86,64
2	Tim Joosten	83,24
3	Tim Humphreys	82,54
4	Jacques van der Hout	82,12
5	Hans Kreisel	81,37
6	Wouter van Hilst	80,73
7	Matthew York	80,63
8	Johnny Tuijn	79,39
9	Orjan Zandvliet	78,80
10	Brendan Lorho	78,45
	..More..

De laatste sessies
1	Christopher Tyack	54,83
2	Dani Coca Serra	54,97
3	Jordy Vonk	74,46
4	Alexander G Buch	61,30
5	Øivind Ibsen	52,73
6	Andre de Jongh	51,71
7	Frans de Vijlder	47,82
8	Salvatore Aragona	47,37
9	Mete Kural	37,42
10	Arnold Schreurs	63,64
11	Boris Mueller	59,18
12	Benoit Laure	56,96
13	Benoit Laure	61,32
14	Mete Kural	40,07
15	Regis Lesieur	61,72
16	Bert Nijsen	18,62
17	Tim Humphreys	78,35
18	Tim Humphreys	82,54
19	Bert Nijsen	43,68
20	Bert Nijsen	31,34
	..More..

Laatst behaalde PR's
1	Francois Desvaux	66,49
2	Marijn Rijswijk	55,66
3	Tim Humphreys	82,54
4	Tobias Meier Nkunzana	49,51
5	Simon Stone	47,30
6	Tuur Van Den Broeck	65,60
7	Jelle van der Veen	64,78
8	Karl Lamens	63,25
9	Joris Vos	73,28
10	Wojciech Kowalski	58,42