Dellin Betances vs Sergio Romo: Career Stats Comparison
Sergio Romo has the better career line of the two, leading 8 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Dellin Betances played 2011–2021 as a pitcher; Sergio Romo played 2008–2022 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
Dellin Betances (2011–2021) and Sergio Romo (2008–2022) — breaking in during the 2010s and the 2000s respectively, so they pitched against very different hitting environments. Dellin Betances finished with 21 wins and 633 strikeouts; Sergio Romo finished with 42 wins and 789 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Dellin Betances, with 2.53 to Sergio Romo's 3.21.
- Who won more games? Sergio Romo, with 42 to Dellin Betances's 21.
- Who recorded more strikeouts? Sergio Romo, with 789 to Dellin Betances's 633.
- Who had the better WHIP? Sergio Romo, with 1.05 to Dellin Betances's 1.07.
- Who pitched more innings? Sergio Romo, with 722.2 to Dellin Betances's 394.1.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Dellin Betances, with 16,859 career Pitcher PIV to Sergio Romo's 14,859.
Dellin Betances
Sergio Romo
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 2010s and the 2000s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Dellin Betances | Sergio Romo |
|---|---|---|
| Wins | 21 | Leads: 42 |
| Losses not scored | 23 | 36 |
| Games | 374 | Leads: 821 |
| Games Started | 1 | Leads: 5 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 36 | Leads: 137 |
| Strikeouts | 633 | Leads: 789 |
| Walks not scored | 183 | 179 |
| Hits Allowed not scored | 240 | 579 |
| Home Runs Allowed not scored | 26 | 85 |
| Innings Pitched | 394.1 | Leads: 722.2 |
| ERA | Leads: 2.53 | 3.21 |
| WHIP | 1.07 | Leads: 1.05 |
| K/9 | Leads: 14.45 | 9.83 |
| BB/9 | 4.18 | Leads: 2.23 |
PIV Comparison through 2025
By PIV (Player Impact Value), Dellin Betances leads Sergio Romo 16,859 to 14,859 — driven by per-season impact — 1,686 PIV per season to 825 — rather than by longevity, since Dellin Betances played 10 seasons to Sergio Romo's 18. 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).
Dellin Betances
No seasons meet the qualifying workload, so there is no peak-season list to show.
Sergio Romo
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, WHIP, and innings pitched, while Dellin Betances owns ERA and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Sergio Romo. Note that PIV actually grades Dellin Betances ahead, which means Sergio Romo's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Dellin Betances and Sergio Romo careers compare
The careers of Dellin Betances (2011–2021) and Sergio Romo (2008–2022) overlapped from 2011 to 2021, so for those seasons they faced the same league conditions. The table compares 374 games of Dellin Betances with 821 of Sergio Romo across 10 and 18 PIV seasons; totals favor the longer career by default. The green cells for Dellin Betances are ERA (2.53 to 3.21) and strikeouts per nine (14.45 to 9.83). The per-nine rows read 14.45 strikeouts and 4.18 walks for Dellin Betances, 9.83 and 2.23 for Sergio Romo. Dellin Betances worked mostly in relief (1 starts in 374 games, 36 saves), and Sergio Romo worked mostly in relief (5 starts in 821 games, 137 saves).
Dellin Betances vs Sergio Romo: Frequently Asked Questions
- Who was better, Dellin Betances or Sergio Romo?
- By the career statistics compared on this page, Sergio Romo leads Dellin Betances in 8 of the 12 scored categories.
- Who had the better ERA?
- Dellin Betances, with 2.53 to Sergio Romo's 3.21.
- Who won more games?
- Sergio Romo, with 42 to Dellin Betances's 21.
- Who recorded more strikeouts?
- Sergio Romo, with 789 to Dellin Betances's 633.
- Who had the better WHIP?
- Sergio Romo, with 1.05 to Dellin Betances's 1.07.