College football · NFLTuesday, October 13, 2026
The Upset Report
2018 · Week 4 · Saturday, September 22, 2018

Purdue upsets No. 23 Boston College, 30–13

Purdue closed as a 6.5-point underdog and won outright. It was unranked Purdue taking down the No. 23 team in the AP poll.

Final30–13
Upset size8
Rank in 201874th of 181
6.5-point underdogUnranked beat No. 23

It was the 4th-biggest of 10 upsets in 2018 Week 4, and the 74th-biggest of the 2018 season. Purdue pulled off 2 other upsets in 2018.

Other upsets in 2018 Week 4

  1. 28.5-point underdogUnranked beat No. 13Recap
    Upset size35
  2. 14.5-point underdogUnranked beat No. 15Recap
    Upset size20
  3. 10-point underdogUnranked beat No. 14Recap
    Upset size16
  4. 3-point underdogUnranked beat No. 17Recap
    Upset size7.5
  5. 31, 30
    6.5-point underdogRecap
    Upset size6.5

Purdue’s other 2018 upsets

  1. Week 10Unranked beat No. 19Recap
    Upset size3.5
  2. Week 812.5-point underdogUnranked beat No. 2Recap
    Upset size24.5

More: Purdue upsets · Boston College upsets · all Week 4 upsets · the 2018 season · how upset size works