Andrew Bailey vs Mariano Rivera: Career Stats Comparison
Mariano Rivera has the better career line of the two, leading 9 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Andrew Bailey played 2009–2017 as a pitcher; Mariano Rivera played 1995–2013 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
Andrew Bailey (2009–2017) and Mariano Rivera (1995–2013) — breaking in during the 2000s and the 1990s respectively, so they pitched against very different hitting environments. Andrew Bailey finished with 16 wins and 276 strikeouts; Mariano Rivera finished with 82 wins and 1,173 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Mariano Rivera, with 2.21 to Andrew Bailey's 3.12.
- Who won more games? Mariano Rivera, with 82 to Andrew Bailey's 16.
- Who recorded more strikeouts? Mariano Rivera, with 1,173 to Andrew Bailey's 276.
- Who had the better WHIP? Mariano Rivera, with 1.00 to Andrew Bailey's 1.10.
- Who pitched more innings? Mariano Rivera, with 1,283.2 to Andrew Bailey's 274.1.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Mariano Rivera, with 52,571 career Pitcher PIV to Andrew Bailey's 4,922.
Andrew Bailey
Mariano Rivera
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 2000s and the 1990s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Andrew Bailey | Mariano Rivera |
|---|---|---|
| Wins | 16 | Leads: 82 |
| Losses not scored | 14 | 60 |
| Games | 265 | Leads: 1,115 |
| Games Started | 0 | Leads: 10 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 95 | Leads: 652 |
| Strikeouts | 276 | Leads: 1,173 |
| Walks not scored | 91 | 286 |
| Hits Allowed not scored | 212 | 998 |
| Home Runs Allowed not scored | 29 | 71 |
| Innings Pitched | 274.1 | Leads: 1,283.2 |
| ERA | 3.12 | Leads: 2.21 |
| WHIP | 1.10 | Leads: 1.00 |
| K/9 | Leads: 9.05 | 8.22 |
| BB/9 | 2.99 | Leads: 2.01 |
PIV Comparison through 2025
By PIV (Player Impact Value), Mariano Rivera outpaces Andrew Bailey 52,571 to 4,922 — driven by both sides of the ledger: 2,767 PIV per season to 547, across 19 seasons to 9. 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).
Andrew Bailey
No seasons meet the qualifying workload, so there is no peak-season list to show.
Mariano Rivera
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Mariano Rivera leads in wins, strikeouts, ERA, and WHIP, while Andrew Bailey owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Mariano Rivera. PIV agrees: Mariano Rivera grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Andrew Bailey and Mariano Rivera careers compare
From 2009 through 2013, Andrew Bailey and Mariano Rivera were in the majors together. The table compares 265 games of Andrew Bailey with 1,115 of Mariano Rivera across 9 and 19 PIV seasons; totals favor the longer career by default. Andrew Bailey's edges on the table are strikeouts per nine (9.05 to 8.22). By rate, Andrew Bailey struck out 9.05 and walked 2.99 per nine innings; Mariano Rivera struck out 8.22 and walked 2.01. Andrew Bailey worked mostly in relief (0 starts in 265 games, 95 saves), and Mariano Rivera worked mostly in relief (10 starts in 1,115 games, 652 saves). Mariano Rivera allowed fewer baserunners, a 1.00 WHIP to Andrew Bailey's 1.10.
Andrew Bailey vs Mariano Rivera: Frequently Asked Questions
- Who was better, Andrew Bailey or Mariano Rivera?
- By the career statistics compared on this page, Mariano Rivera leads Andrew Bailey in 9 of the 12 scored categories.
- Who had the better ERA?
- Mariano Rivera, with 2.21 to Andrew Bailey's 3.12.
- Who won more games?
- Mariano Rivera, with 82 to Andrew Bailey's 16.
- Who recorded more strikeouts?
- Mariano Rivera, with 1,173 to Andrew Bailey's 276.
- Who had the better WHIP?
- Mariano Rivera, with 1.00 to Andrew Bailey's 1.10.