Isaac Mattson (P) - Pittsburgh Pirates
Isaac posted a 1.54 ERA over 11.2 innings in 2026. He had struck out 9 batters and walked 6 and averaging 6.9 K/9. He recorded 4 holds. Isaac was worth 0.2 WAR last season.
Pitching Splits Pitching performance splits against left-handed and right-handed batters.
| Split | K% | K/9 | BB% | wOBA | xFIP | HH% |
|---|---|---|---|---|---|---|
| vs LHB | 20.7% | 8.6 | 15.5% | 0.434 | 5.77 | 42.2% |
| vs RHB | 22.6% | 7.8 | 5.3% | 0.268 | 4.75 | 42.1% |
| Overall | 21.7% | 8.2 | 10.0% | 0.345 | 4.88 | 42.1% |
Pitching Splits — K% & BB% (2020) Strikeout and walk rates against left-handed batters, right-handed batters, and overall.
Pitching Splits — wOBA (2020) Weighted on-base average allowed against left-handed batters, right-handed batters, and overall. Lower is better for pitchers.
Pitching Splits — HH% (2020) Hard-hit rate allowed against left-handed batters, right-handed batters, and overall. Lower is better for pitchers.
Season Context Key season-level pitching metrics including games played, SIERA, and batted ball data.
Batted Ball Profile (2020) Ground ball vs fly ball tendency — higher GB% generally means fewer home runs allowed.
Traditional Stats Standard pitching stats: ERA, FIP, W/L, saves, holds, innings, and games started. 2020 Season
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Isaac Mattson MLB Stats 2020
Isaac Mattson is a P for the Pittsburgh Pirates. View Isaac's current season stats, recent performance trends, and key statistical categories to evaluate fantasy value and make informed DFS lineup decisions.
Isaac Mattson DFS Salary Today
Today's DFS salary for Isaac Mattson: DraftKings $4,000 and FanDuel $5,500. Track daily salary changes and find value plays using FTA's projection and ownership data. View Isaac's daily projections or check today's player props and betting lines.
Stats updated April 17, 2026.