Willie Hernandez vs Mason Miller: Career Stats Comparison
Willie Hernandez has the better career line of the two, leading 7 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Willie Hernandez played 1977–1989 as a pitcher; Mason Miller has played 2023–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
Willie Hernandez (1977–1989) and Mason Miller (2023–present) — breaking in during the 1970s and the 2020s respectively, so they pitched against very different hitting environments. Willie Hernandez finished with 70 wins and 788 strikeouts; Mason Miller has 8 wins and 375 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 Willie Hernandez's 3.38.
- Who won more games? Willie Hernandez, with 70 to Mason Miller's 8.
- Who recorded more strikeouts? Willie Hernandez, with 788 to Mason Miller's 375.
- Who had the better WHIP? Mason Miller, with 0.94 to Willie Hernandez's 1.25.
- Who pitched more innings? Willie Hernandez, with 1,044.2 to Mason Miller's 230.0.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Willie Hernandez, with 10,045 career Pitcher PIV to Mason Miller's 6,845.
Willie Hernandez
Mason Miller
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 1970s and the 2020s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Mason Miller is still active — his totals below are current through October 12, 2026.
| Statistic | Willie Hernandez | Mason Miller |
|---|---|---|
| Wins | Leads: 70 | 8 |
| Losses not scored | 63 | 9 |
| Games | Leads: 744 | 191 |
| Games Started | Leads: 11 | 6 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | Leads: 147 | 88 |
| Strikeouts | Leads: 788 | 375 |
| Walks not scored | 349 | 91 |
| Hits Allowed not scored | 952 | 125 |
| Home Runs Allowed not scored | 97 | 16 |
| Innings Pitched | Leads: 1,044.2 | 230.0 |
| ERA | 3.38 | Leads: 2.47 |
| WHIP | 1.25 | Leads: 0.94 |
| K/9 | 6.79 | Leads: 14.67 |
| BB/9 | Leads: 3.01 | 3.56 |
PIV Comparison through 2025
By PIV (Player Impact Value), Willie Hernandez outpaces Mason Miller 10,045 to 6,845 — a longevity gap rather than a per-season one: Willie Hernandez played 14 seasons to Mason Miller's 4, while Mason Miller carries the higher per-season figure (1,711 to 718). 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).
Willie Hernandez — top 1 season by ERA (lower is better)
Mason Miller
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Willie Hernandez 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 Willie Hernandez. PIV agrees: Willie Hernandez grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Willie Hernandez and Mason Miller careers compare
No season is shared: Willie Hernandez played 1977–1989, Mason Miller 2023–present. The table compares 744 games of Willie Hernandez with 191 of Mason Miller across 14 and 4 PIV seasons; totals favor the longer career by default. Mason Miller's edges on the table are ERA (2.47 to 3.38), WHIP (0.94 to 1.25), and strikeouts per nine (14.67 to 6.79). The per-nine rows read 6.79 strikeouts and 3.01 walks for Willie Hernandez, 14.67 and 3.56 for Mason Miller. Willie Hernandez worked mostly in relief (11 starts in 744 games, 147 saves), and Mason Miller worked mostly in relief (6 starts in 191 games, 88 saves). Mason Miller's numbers are live and update with each game, so the comparison is a snapshot.
Willie Hernandez vs Mason Miller: Frequently Asked Questions
- Who was better, Willie Hernandez or Mason Miller?
- By the career statistics compared on this page, Willie Hernandez leads Mason Miller in 7 of the 12 scored categories.
- Who had the better ERA?
- Mason Miller, with 2.47 to Willie Hernandez's 3.38.
- Who won more games?
- Willie Hernandez, with 70 to Mason Miller's 8.
- Who recorded more strikeouts?
- Willie Hernandez, with 788 to Mason Miller's 375.
- Who had the better WHIP?
- Mason Miller, with 0.94 to Willie Hernandez's 1.25.