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Mason Miller's 2026 Legends Deck card — rated 92 overall using real 2026 Statcast pitching data (fastball velocity, spin, expected ERA, put-away rate). Ratings refresh nightly from Baseball Savant.
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| ERA | 0.91 |
| WHIP | 0.78 |
| K/9 | 16.3 |
| BB/9 | 3.0 |
| HR/9 | 0.0 |
| Wins | 2 |
| Saves | 25 |
| Strikeouts | 72 |
Through 21 appearances, Miller's 0.96 ERA and 0.64 WHIP put him in conversation with Eric Gagne's 2003 Cy Young. His 18.32 K/9 leads all qualified MLB pitchers, and his 101.3 mph average fastball is the hardest of any reliever in Statcast tracking history. The 2.41 BB/9 walk rate stays elite even at that velocity tier. A 0.72 xERA suggests the early run prevention is sustainable. The only real risk is workload: he's on pace for 75-plus appearances, and 100-plus mph fastball usage at that frequency has no comparable precedent.
Reviewed 2026-05-13 · Statcast data refreshed nightly via Baseball Savant
| xERA | 1.38 |
| xwOBA Against | — |
| Avg Fastball Velo | 101.3 mph |
| Put-Away Rate | — |
| Zone Rate | 42.5% |
| First-Pitch Strike | 61.4% |
Mason Miller's 2026 average fastball velocity is 101.3 mph, ranked #1 of 376 qualified pitchers on the MLB Statcast average fastball velocity leaderboard. Source: Baseball Savant, refreshed nightly.
What is average fastball velocity? Mean speed in mph of a pitcher's most-thrown fastball (four-seam or sinker) across all outings, captured by Statcast radar at every MLB park.
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Legends Deck rates every card using percentile-scaled Statcast data from Baseball Savant. Mason Miller's current rating of 92 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.