The largest upset occurred in the 2015 Sugar Bowl, when No. Of the seven upsets to have occurred in the College Football Playoff, none have been by an underdog of 10 or more points. Underdogs have historically offered a slightly better return when wagering against the spread, going 9-8 ATS and 7-10 SU across all CFP games. CFP National Championship Game Matchup Combination Oddsįavorites have traditionally been a strong play in the CFP semifinals, going 9-3 SU and 8-4 ATS since the College Football Playoff began in 2014.