Info here: https://www.eurega.org/
45km and 100km on the fast Rhein river!
It's about a 2h30-3h00 race for the 45km distance
A classic long distance race in Europe, see the details in the attached doicument.
Boats can be tracked using an app on your smartphone: https://play.google.com/store/apps/details?id=biz.smk.euregatrack