NFL and College Football betting split systems analysis

Analysis of betting split systems for Week 1 of the NFL and Week 2 of College Football reveals various historical trends regarding against the spread (ATS) performance.

In the NFL, data from the past two seasons suggests that when more than 68% of the handle is on a road side for an ATS wager, that group has a 58.3% record. Conversely, majority handle bettors in NFL divisional games have historically underperformed, posting a 45.8% ATS record since 2022. In non-conference games from 2023-25, majority handle groups have performed more effectively with a 54.3% ATS record.

For College Football, trends since the start of the 2022 season indicate that when more than 75% of the handle is on one side of an ATS wager, that group has gone 47.5% ATS. Additionally, when 76% or more of the total number of bets are on the home side, that group has maintained a 48.5% ATS record. The data also shows that majority handle bettors on road favorites have struggled, recording a 47.4% ATS rate since 2022.