The Michigan-Notre Dame rivalry is plenty eminent. But at 42 games, it is nowhere near college football’s most contested; in recent years, it has not been among the most nationally decisive, either. Here are other notable competitions. (Numbers from Sports Reference.)

■ Major college football’s most prolific rivalry is Wisconsin-Minnesota. The winner has received Paul Bunyan’s Axe since 1948, but the Badgers and the Gophers first met in the 1890s and have played a total of 127 times.

■ The most prolific intrastate rivalry is the Civil War: Oregon and Oregon State have met 121 times.

■ Nebraska and Oklahoma played 84 times from 1921 to 2010, a period in which they combined to win 65 conference championships (and 12 national titles). But since the Cornhuskers joined the Big Ten in 2011, this rivalry has become dormant, as have several other, even-longer-tenured, rivalries of the old Big Eight.