so going by my primary school math...
I figure he was going average of 200km/h around the track.
200 per hour divided by two
100 per 30 minutes divided by two
50 per 15 minutes divided by two
equals 25km per 7.5 minutes.
Track length is about 22. something km and the vid was 7.5 minute
So around 200 km
(I'm such a math genius, they wrote Good Will Hunting based on me)