Purdue Boilermakers football
Conference championships

Season
Coach
Conference
Record
Conference Record
1891
Knowlton Ames
IIAA
4–0
4–0
1892
Knowlton Ames
IIAA
8–0
4–0
1893
D.M. Balliet
IIAA
5–2–1
4–0
1894
D.M. Balliet
IIAA
9–1
4–0
1918†
A. G. Scanlon
Big Ten Conference
3–3
1–0
1929
James Phelan
Big Ten Conference
8–0
5–0
1931†
Noble Kizer
Big Ten Conference
9–1
5–1
1932†
Noble Kizer
Big Ten Conference
7–0–1
5–0–1
1943†
Elmer Burnham
Big Ten Conference
9–0
6–0
1952†
Stu Holcomb
Big Ten Conference
4–3–1
4–1–1
1967†
Jack Mollenkopf
Big Ten Conference
8–2
6–1
2000†
Joe Tiller
Big Ten Conference
8–4
6–2

Question: In which years and with what records did Purdue have unbeaten seasons?
Answer: Purdue had five unbeaten seasons, going 4–0 in 1891, 8–0 in 1892, 8–0 in 1929, 7–0–1 in 1932 and 9–0 in 1943.