Date ND rank Coach ND Opp. Opponent O rank O final
11/21/1936 11 HOME LAYDEN 26 6 NORTHWESTERN 1 7 PAPPY WALDORF
10/9/1943 1 AWAY LEAHY 35 12 MICHIGAN 2 3 FRITZ CRISLER
11/20/1943 1 HOME LEAHY 14 13 IOWA PRE-FLIGHT 2 2 DON FAUROT
11/29/1952 7 HOME LEAHY 9 0 SOUTHERN CAL 2 5 JESS HILL
11/16/1957 NR AWAY BRENNAN 7 0 OKLAHOMA 2 4 BUD WILKINSON
1/1/1971 6 COTTON ARA 24 11 TEXAS 1 3 DARRELL ROYAL
12/31/1973 3 SUGAR ARA 24 23 ALABAMA 1 4 PAUL "BEAR" BRYANT
1/1/1975 9 ORANGE ARA 13 11 ALABAMA 2 5 PAUL "BEAR" BRYANT
1/2/1978 5 COTTON DEVINE 38 10 TEXAS 1 4 FRED AKERS
11/6/1982 NR AWAY FAUST 31 16 PITT 1 10 FOGE FAZIO
10/15/1988 4 HOME HOLTZ 31 30 MIAMI (FL) 1 2 JIMMY JOHNSON
11/26/1988 1 AWAY HOLTZ 27 10 SOUTHERN CAL 2 7 LARRY SMITH
9/16/1989 1 AWAY HOLTZ 24 19 MICHIGAN 2 7 BO SCHEMBECHLER
1/1/1990 4 ORANGE HOLTZ 21 6 COLORADO 1 4 BILL McCARTNEY
10/20/1990 6 HOME HOLTZ 29 20 MIAMI (FL) 2 3 DENNIS ERICKSON
11/13/1993 2 HOME HOLTZ 31 24 FLORIDA STATE 1 1 BOBBY BOWDEN
11/7/2020 4 HOME KELLY 47 40 CLEMSON 1 3 DABO SWINNEY
Most wins vs. #2 all-time as an unranked team. That is what gave Purdue the edge.
Matt Brown also threw in yet another category. These tweets were posted on Saturday before the Iowa game went final.
Most wins against AP top 5 while unranked (entering today)
— Matt Brown (@MattBrownCFB) October 16, 2021
Purdue 15
USC 11
Illinois 11
Michigan State 10
UCLA 9
async src="https://platform.twitter.com/widgets.js" charset="utf-8">>Most wins against AP top 2 while unranked:
— Matt Brown (@MattBrownCFB) October 16, 2021
Purdue 8
Arizona 4
Michigan State 4
Minnesota 4
Oregon State 4
UCLA 4
on 1/1/78 31-6. With No.1 Texas having gotten stomped by ND earlier in the day, the NC was Oklahoma’s to lose. They just had to beat an Arkansas team that was missing the players who had accounted for 80 percent of their offense.
Then there was the near miss re No. 1 Colorado in the Orange Bowl with the bs clipping call on Rocket’s return with 43 seconds left.
I would have also said W Va in 1988 but checked and they were ranked 3rd. Penn State was also 3rd in 1986 when we came within inches of knocking them off. At least they went on to win the NC by ruining Miami’s NC run.
In Googling some of this, I found this article about some of his more recent contributions.