Mason Miller vs Devin Williams: Career Stats Comparison
Mason Miller and Devin Williams are close to even, splitting the 12 scored categories on this page 5–5 (4 further counting totals are shown but not scored). Mason Miller has played 2023–present as a pitcher; Devin Williams has played 2019–present as a pitcher.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
Mason Miller (2023–present) and Devin Williams (2019–present) — breaking in during the 2020s and the 2010s respectively, so they pitched against very different hitting environments. Mason Miller has 8 wins and 375 strikeouts through October 12, 2026; Devin Williams has 34 wins and 517 strikeouts through October 12, 2026. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Mason Miller, with 2.47 to Devin Williams's 2.69.
- Who won more games? Devin Williams, with 34 to Mason Miller's 8.
- Who recorded more strikeouts? Devin Williams, with 517 to Mason Miller's 375.
- Who had the better WHIP? Mason Miller, with 0.94 to Devin Williams's 1.11.
- Who pitched more innings? Devin Williams, with 338.1 to Mason Miller's 230.0.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Devin Williams, with 13,215 career Pitcher PIV to Mason Miller's 6,845.
Mason Miller
Devin Williams
Career Stats Side-by-Side
Every cell below is a career total or career rate. Cells highlighted in green mark the player who leads that line. Lower ERA, WHIP and BB/9 lead; higher K/9 leads. 12 of the 16 lines below are scored; the other 4 are counting totals on which fewer is not an achievement, so no one is awarded them. Totals where fewer is not an achievement -- losses, walks and hits allowed -- are left unmarked, because they track how long someone pitched rather than how well. Rate stats are not era-adjusted, and the 2020s and the 2010s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Mason Miller and Devin Williams are still active — their totals below are current through October 12, 2026.
| Statistic | Mason Miller | Devin Williams |
|---|---|---|
| Wins | 8 | Leads: 34 |
| Losses not scored | 9 | 18 |
| Games | 191 | Leads: 352 |
| Games Started | Leads: 6 | 0 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 88 | Leads: 102 |
| Strikeouts | 375 | Leads: 517 |
| Walks not scored | 91 | 158 |
| Hits Allowed not scored | 125 | 217 |
| Home Runs Allowed not scored | 16 | 23 |
| Innings Pitched | 230.0 | Leads: 338.1 |
| ERA | Leads: 2.47 | 2.69 |
| WHIP | Leads: 0.94 | 1.11 |
| K/9 | Leads: 14.67 | 13.75 |
| BB/9 | Leads: 3.56 | 4.20 |
PIV Comparison through 2025
By PIV (Player Impact Value), Devin Williams outpaces Mason Miller 13,215 to 6,845 — driven by both sides of the ledger: 1,888 PIV per season to 1,711, across 7 seasons to 4. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
PIV is computed through the 2025 season. The career totals on this page include 2026 to date, so PIV does not yet reflect the 2026 season.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Mason Miller
No seasons meet the qualifying workload, so there is no peak-season list to show.
Devin Williams
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Devin Williams leads in wins, strikeouts, and innings pitched, while Mason Miller owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Devin Williams. PIV agrees: Devin Williams grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Mason Miller and Devin Williams careers compare
Mason Miller and Devin Williams are both active, and their careers have run side by side since 2023. Devin Williams has the far longer record, 352 games against 191 across 4 and 7 PIV seasons, which inflates every career total. By rate, Mason Miller struck out 14.67 and walked 3.56 per nine innings; Devin Williams struck out 13.75 and walked 4.20. Both had the same role: Mason Miller worked mostly in relief (6 starts in 191 games, 88 saves); Devin Williams worked mostly in relief (0 starts in 352 games, 102 saves). Mason Miller allowed fewer baserunners, a 0.94 WHIP to Devin Williams's 1.11. Mason Miller and Devin Williams's numbers are live and update with each game, so the comparison is a snapshot.
Mason Miller vs Devin Williams: Frequently Asked Questions
- Who had the better ERA?
- Mason Miller, with 2.47 to Devin Williams's 2.69.
- Who won more games?
- Devin Williams, with 34 to Mason Miller's 8.
- Who recorded more strikeouts?
- Devin Williams, with 517 to Mason Miller's 375.
- Who had the better WHIP?
- Mason Miller, with 0.94 to Devin Williams's 1.11.