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Pirates · RP · Common · 2026
Isaac Mattson
Isaac Mattson's 2026 Legends Deck card is rated 59 overall using real 2026 Statcast pitching data (fastball velocity, spin, expected ERA, put-away rate). Ratings refresh nightly.
Source MLB Statcast dataThrough Rating refreshed nightly
59
RP
Isaac Mattson
Pirates · 2026 · B:R T:R
ERA5.35
K36
WHIP1.60
Stock
Marketplace
Play free · no signup · 90 seconds
Face Mattson in a free half-inning
Play a half-inning in our Statcast-driven sim. Isaac Mattson's real 2026 numbers are why this card is rated 59. No signup, about 90 seconds.
Overall Rating
Overall · out of 9959
Power77
Control77
Run prevention40
Durability53
Common · Pittsburgh Pirates · MLB lists: P
▼ from 74 preseason
Pitching Stats (2026)
| G | GS | W | L | SV | IP | H | ER | BB | SO | K/9 | ERA | WHIP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 38 | 0 | 0 | 0 | 0 | 38.2 | 44 | 23 | 18 | 36 | 8.4 | 5.35 | 1.60 | 176 |
2026 MLB regular season, official MLB stats.
Statcast History
| Year | BF | FB Velo | Whiff% | Chase% |
|---|---|---|---|---|
| 2025 | 198 | 93.9 mph | 23.2% | 29.2% |
| 2024 | 23 | 94.0 mph | 23.9% | 26.4% |
Per-season Statcast pitching data (fastball velocity, whiff and chase rates induced).
Transaction History
Isaac Mattson appears in 5 archived official MLB transactions (1 trade), newest first.
| Date | Type | From | To | Details |
|---|---|---|---|---|
| Nov 18, 2024 | Signed as free agent | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Isaac Mattson to a minor league contract. |
| Dec 11, 2023 | Signed as free agent | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Isaac Mattson to a minor league contract. |
| Jun 22, 2023 | Signed as free agent | — | Minnesota Twins | Minnesota Twins signed free agent RHP Isaac Mattson to a minor league contract. |
| Dec 4, 2019 | Trade | Los Angeles Angels | Baltimore Orioles | Baltimore Orioles traded RHP Dylan Bundy to Los Angeles Angels for RHP Isaac Mattson, RHP Kyle Bradish, RHP Kyle Brnovich and RHP Zach Peek. |
| Jun 18, 2017 | Signed | — | Los Angeles Angels | Los Angeles Angels signed RHP Isaac Mattson. |
From MLB’s official StatsAPI transactions feed (2011 to the current season, trades/signings/releases involving major-league clubs). Trade rows that name several players are keyed to one player by the feed; other players named in the trade are joined through its description, and same-name cases the feed cannot disambiguate are counted, not guessed. Browse the full archive.
Statcast (2026)
| xERA | 6.23 |
|---|---|
| xwOBA Against | 0.374 |
| Avg Fastball Velo | 94.2 mph |
| Put-Away Rate | — |
| Zone Rate | — |
| First-Pitch Strike | 56.9% |
Marketplace Price History
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Play a half-inning with cards like Isaac Mattson
About 30 seconds. A loaner lineup against a CPU pitcher, real Statcast, no signup.
How this rating was calculated
Legends Deck rates every card using percentile-scaled Statcast data. Isaac Mattson's current rating of 59 reflects their real 2026 season performance as of the last nightly refresh, not editorial opinion. When their actual Statcast numbers change, the card rating changes.
Full methodology: How Legends Deck card ratings work. Glossary: xwOBA, Statcast.
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