Inline Speed Skating is a sport between Ice Skating that you can see at the Olympic Games and Cyclisme. In France, the lowest level of competition is some local criterium, after you will have regional competition, selection to go to the French Championship. If you have been great at a national level, you will have enough point to enter in the French Selection and go to the European Championship.
There are three different championships. The first one is at the begging of the season, Indoor, with sprint and long race. One current May, on a 400m long asphalte circuit, with 4 races; 100m, 400m, 5k point and 10k elimination. The last one is on a 200m track, very similar to a velodrome but with less angle in the corner. (~ 10-20°)

Fixed Gear Cyclisme is a new discipline in the bike world, the extreme side of the road bike. These are races on a closed circuit with a track bike, it's mean one chainring and one sprocket. Races happen generally by night. The most challenging race of the season is Red Hook Criterium Series, where there are four stages, Brooklyn, London, Barcelona and Milan.
After there are others important criterium as the Fixed Nation Cup (the equivalent of a world cup by nations), the Rapha Nocturne Series (London & Copenhagen), the NLCrit Series or the Rad Race who have many different kinds of races.