Again, the winner of each heat advanced; this time, a fastest loser also qualified.

The winner of each heat qualified for the final (or medal) round.

The competitors, 16 or sometimes 32, were paired off in heats and the winner of each heat went through to the next round.

The winner of each heat advanced to the final the next day, with all other runners eliminated.

The winner of each heat is qualified for the semi-finals.

This year had 10 qualifying heats with the winner of each heat going onto the finals.

The winner of each heat went through to the wipeout zone.

The winners of each heat went head-to-head in the final round.

The winner of each heat advanced, with all others eliminated.

The final round was played between the three winners of each heat, and the eventual champion won $2,000 a week for 20 years ($2,080,000 total).