what i don't get about jap keirin though is surely one rider will simply be better than the others and mainly always win
If you have only ever watched UCI Keirin races, you won't understand NJS Keirin. The rules are somewhat different, including the number of riders and the pacing. For these reasons, the outcome is more uncertain than is the case under UCI rules. Riding on a longer track makes it hard to race the Hoy way; taking the Derny's wheel and holding everybody off for two laps might work on a 250m track, but on a 400m track you're on your own for half a mile!
Also, Hoy is dominant at the Olympics and World Championships because he is better then the others and only has to achieve peak condition for a week. As long as he doesn't cock up, he gets to the big championships in peak condition and his superiority shows. All the other UCI circuit competitors are conditioning for the same peaks so Hoy can look dominant at other times even when is below his peak, because everybody else working towards the same goals is similarly off their peak.
In a long season of NJS Keirin, no one competitor can maintain peak form all the time, and others may come to their peak at other times.
If you have only ever watched UCI Keirin races, you won't understand NJS Keirin. The rules are somewhat different, including the number of riders and the pacing. For these reasons, the outcome is more uncertain than is the case under UCI rules. Riding on a longer track makes it hard to race the Hoy way; taking the Derny's wheel and holding everybody off for two laps might work on a 250m track, but on a 400m track you're on your own for half a mile!
Also, Hoy is dominant at the Olympics and World Championships because he is better then the others and only has to achieve peak condition for a week. As long as he doesn't cock up, he gets to the big championships in peak condition and his superiority shows. All the other UCI circuit competitors are conditioning for the same peaks so Hoy can look dominant at other times even when is below his peak, because everybody else working towards the same goals is similarly off their peak.
In a long season of NJS Keirin, no one competitor can maintain peak form all the time, and others may come to their peak at other times.