By beating Penn State and by Notre Dame falling to Duke on Saturday, the No. 4 Michigan football team now has college football's best all-time winning percentage.

With a historical record of 929-331-36, the Wolverines (4-0 in 2016) have a winning percentage of .7307. The Fighting Irish (1-3), meanwhile, are 893-316-42 for a winning percentage of .7306. The difference is minuscule, but the magnitude is large for both historical programs.