We just published the last results for both challenges!
Regarding the sprint challenge, don't forget that it needs to be upstream (direction Schengen) and with a standing start.
You may try every day if you want to! Send us all your results or only the best one - you choose!
Sprint Challenge > https://www.luxrow.org/publications/sprint-challenge/
Regularity Challenge > https://www.luxrow.org/publications/challenge/
Enjoy!
The committee