After a really low round most players have a hard time doing it the next round ...
like 60 - 75. Mental?
Mathematicians have a name for this phenomenon: Regression to the Mean. The principle (known also as Reversion to Mediocrity) is universal and exists in all of life, not just on the PGA TOUR. http://en.wikipedia.org/wiki/Regression_toward_the_mean
All my best to Jim Renner in this quest to keep his card.