Excluding Paavo Nurmi, it is probably Emil Zatopek at 1952 Olympics. But in the modern era you would be hard pressed to top Ben Jipcho at 1974 Commonwealth Games. Over 7 days he raced 6 times including:
Steeplechase - 8:20 1st
5,000 meters - 13:14 1st
1,500 meters - 3:33 3rd
Dyestat boys, please match those against 1974 times, not 2008 times. Thanks.