Sergio Romo vs Koji Uehara: Career Stats Comparison
Sergio Romo and Koji Uehara are close to even, splitting the 12 scored categories on this page 5–5 (4 further counting totals are shown but not scored). Sergio Romo played 2008–2022 as a pitcher; Koji Uehara played 2009–2017 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
Sergio Romo (2008–2022) and Koji Uehara (2009–2017) — both came up during the 2000s, so the matchup is a direct one. Sergio Romo finished with 42 wins and 789 strikeouts; Koji Uehara finished with 22 wins and 572 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Koji Uehara, with 2.66 to Sergio Romo's 3.21.
- Who won more games? Sergio Romo, with 42 to Koji Uehara's 22.
- Who recorded more strikeouts? Sergio Romo, with 789 to Koji Uehara's 572.
- Who had the better WHIP? Koji Uehara, with 0.89 to Sergio Romo's 1.05.
- Who pitched more innings? Sergio Romo, with 722.2 to Koji Uehara's 480.2.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Sergio Romo, with 14,859 career Pitcher PIV to Koji Uehara's 14,424.
Sergio Romo
Koji Uehara
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, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Sergio Romo | Koji Uehara |
|---|---|---|
| Wins | Leads: 42 | 22 |
| Losses not scored | 36 | 26 |
| Games | Leads: 821 | 436 |
| Games Started | 5 | Leads: 12 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | Leads: 137 | 95 |
| Strikeouts | Leads: 789 | 572 |
| Walks not scored | 179 | 78 |
| Hits Allowed not scored | 579 | 350 |
| Home Runs Allowed not scored | 85 | 60 |
| Innings Pitched | Leads: 722.2 | 480.2 |
| ERA | 3.21 | Leads: 2.66 |
| WHIP | 1.05 | Leads: 0.89 |
| K/9 | 9.83 | Leads: 10.71 |
| BB/9 | 2.23 | Leads: 1.46 |
PIV Comparison through 2025
By PIV (Player Impact Value), Sergio Romo edges Koji Uehara 14,859 to 14,424 — a longevity gap rather than a per-season one: Sergio Romo played 18 seasons to Koji Uehara's 10, while Koji Uehara carries the higher per-season figure (1,442 to 825). 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).
Sergio Romo
No seasons meet the qualifying workload, so there is no peak-season list to show.
Koji Uehara
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Sergio Romo leads in wins, strikeouts, and innings pitched, while Koji Uehara owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Sergio Romo. PIV agrees: Sergio Romo grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Sergio Romo and Koji Uehara careers compare
From 2009 through 2017, Sergio Romo and Koji Uehara were in the majors together. Sergio Romo has the far longer record, 821 games against 436 across 18 and 10 PIV seasons, which inflates every career total. The per-nine rows read 9.83 strikeouts and 2.23 walks for Sergio Romo, 10.71 and 1.46 for Koji Uehara. Both had the same role: Sergio Romo worked mostly in relief (5 starts in 821 games, 137 saves); Koji Uehara worked mostly in relief (12 starts in 436 games, 95 saves). In WHIP, Koji Uehara's 0.89 beats Sergio Romo's 1.05.
Sergio Romo vs Koji Uehara: Frequently Asked Questions
- Who had the better ERA?
- Koji Uehara, with 2.66 to Sergio Romo's 3.21.
- Who won more games?
- Sergio Romo, with 42 to Koji Uehara's 22.
- Who recorded more strikeouts?
- Sergio Romo, with 789 to Koji Uehara's 572.
- Who had the better WHIP?
- Koji Uehara, with 0.89 to Sergio Romo's 1.05.