This race takes its name from the famous Madison Square Garden in New York.
It is a version of the points race except that teams of two riders compete over a whopping 50km - 200 laps of the track!
After a mass start where all the riders are on the track, only one rider from each team is allowed in the race at any given time.
One rider races for a lap or more.
Meanwhile, the other circles the top of the track taking a breather before their team-mate brings them back into action with a hand-sling.
Basically this means they grab their team-mate's hand and pass on their momentum, propelling the slower rider along the track.
Changeovers are dangerous but quite impressive to watch if done well.
There are sprints for points every 20 laps but again, the main objective is to gain a lap on your opponents.
If a team can gain a lap on the field, they are in the leading position of the race no matter how many points they have.
But if all the teams are on the same lap at the end of the race, the team with most points is the winner.