Quinn Mathews
STL • P • Throws L • 2026 Season
Yahoo eligible: SP
Value
Standard score (σ), not a percentile, vs all qualified pitchers — 0 = average, +1 = one standard deviation above the mean. Built from 5x5 category z-scores (like Baseball Monster).
Control & Efficiency
Strike-throwing and length profile — drives the Likely-QS / High-K/BB start flags. The bar under each stat is this pitcher's percentile vs 243 qualified MLB starters (100th = best — already direction-adjusted, so a low BB% or P/PA scores high).
Arsenal
Throwing hand and pitch mix (share of pitches thrown) — the traits the matchup ratings below weigh against each opponent's splits.
Primary pitch: 4-Seam Fastball (63%)
Season Stats
The big number is the actual stat. The bar below it is this pitcher's percentile vs 464 qualified MLB pitchers (≥30 IP) this season — 100th = best, direction-adjusted (a low ERA/WHIP/BB scores high).
Splits & Tendencies
How this pitcher fares by batter hand, venue, opponent lineup quality (elite→poor offenses), and over the last 30 days. Lower ERA/WHIP is better; OPS-against shows for the hand/venue splits. Hover a tag for the numbers.
| Split | IP | ERA | WHIP | K/9 |
|---|
Luck Factor
How much this pitcher's results are outrunning or trailing the quality of what actually happened — league-relative. Hover a meter for the inputs.
Game Log (9 games)
| Date | Opp | Dec | IP | H | R | ER | BB | SO | HR | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 26 | @ Milwaukee Brewers | L | 5 | 5 | 3 | 3 | 2 | 7 | 1 | 81 |
| Sep 20 | vs Washington Nationals | - | 7 | 7 | 3 | 3 | 2 | 3 | 1 | 96 |
| Sep 14 | vs San Francisco Giants | W | 6.2 | 4 | 1 | 1 | 2 | 8 | 0 | 99 |
| Sep 8 | @ San Francisco Giants | L | 6 | 5 | 2 | 2 | 2 | 4 | 2 | 99 |
| Sep 3 | @ Los Angeles Dodgers | - | 5 | 4 | 1 | 1 | 4 | 4 | 0 | 99 |
| Aug 28 | vs Pittsburgh Pirates | W | 5.2 | 5 | 1 | 1 | 1 | 7 | 0 | 102 |
| Aug 22 | @ Philadelphia Phillies | L | 5 | 10 | 7 | 7 | 1 | 3 | 0 | 99 |
| Aug 17 | @ Cincinnati Reds | - | 4 | 2 | 1 | 1 | 3 | 7 | 1 | 95 |
| Aug 1 | @ Toronto Blue Jays | L | 5 | 6 | 2 | 2 | 3 | 3 | 0 | 97 |