Glossary

Success rate

Success rate is the share of plays that gained positive expected points — roughly, plays that kept the offense ahead of the chains. Drake Maye of the Patriots led 2025 quarterbacks at 55.2%.

A play is a success if it added expected points, which in practice means about 40% of the yards needed on first down, 60% on second, and everything needed on third or fourth. Success rate counts how often that happened. It ignores how big the gains were.

Updated Jul 26, 2026

Current leaders — 2025

Quarterback EPA per Dropback leaders, 2025
#PlayerDBEPA/DBSuccess%EPA/G
1Drake MayeQB · NE6010.3255.2%10.79
2Jordan LoveQB · GB4850.2650.5%8.73
3Matthew StaffordQB · LAR6240.2252.7%7.36
4Brock PurdyQB · SF3160.2053.2%8.40
5Jared GoffQB · DET6190.1848.6%5.80
6Dak PrescottQB · DAL6560.1748.6%6.25
7Patrick MahomesQB · KC5890.1749.9%7.17
8Josh AllenQB · BUF5540.1648.4%6.83
9Daniel JonesQB · IND4310.1550.3%5.81
10Sam DarnoldQB · SEA5160.1352.5%3.70

See the full quarterback epa per dropback leaderboard Drake Maye leads.

Why it matters

Two offenses can average the same yards per play, one through steady conversions and one through a few long gains between failures. Success rate tells them apart, and the steady version sustains drives, which is what generates the red-zone trips fantasy scoring depends on. Drake Maye led 2025 at 55.2%, with Brock Purdy of the 49ers second at 53.2%. Where success rate and expected points added disagree on a passer, one is measuring consistency and the other magnitude.

Updated Jul 26, 2026

The counter

Success rate is blind to explosive plays, which is exactly where fantasy scoring concentrates.

Updated Jul 26, 2026

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