1967 Continues to train hard. 2 years later, over-trains again. Gets injured again.
And once again, for over a month he can't run at all and then enters the Belgium marathon. Breaks his own personal best, breaks the world record: 2 hours 8 minute and 33 seconds, a world record, world best that holds for 12 years. This is when trainers and athletes began to understand the importance of tapering, the importance of taking time off, the importance of recovery. There can be too much of a good thing. Very similar story. Joan Benoit. Ended up winning the 1984 Los Angeles Marathon after having been injured and having, was forced to take time off. The Danish Soccer team. Another example. I think that's 1991. Ended up winning the European Championship after being out of the competition, being brought in the last minute because Yugoslavia was just breaking apart at the time.