Mariano Rivera vs John Wetteland: Career Stats Comparison
Mariano Rivera 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). Mariano Rivera played 1995–2013 as a pitcher; John Wetteland played 1989–2000 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
Mariano Rivera (1995–2013) and John Wetteland (1989–2000) — breaking in during the 1990s and the 1980s respectively, so they pitched against very different hitting environments. Mariano Rivera finished with 82 wins and 1,173 strikeouts; John Wetteland finished with 48 wins and 804 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 John Wetteland's 2.93.
- Who won more games? Mariano Rivera, with 82 to John Wetteland's 48.
- Who recorded more strikeouts? Mariano Rivera, with 1,173 to John Wetteland's 804.
- Who had the better WHIP? Mariano Rivera, with 1.00 to John Wetteland's 1.13.
- Who pitched more innings? Mariano Rivera, with 1,283.2 to John Wetteland's 765.0.
- 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 John Wetteland's 20,366.
Mariano Rivera
John Wetteland
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 1990s and the 1980s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Mariano Rivera | John Wetteland |
|---|---|---|
| Wins | Leads: 82 | 48 |
| Losses not scored | 60 | 45 |
| Games | Leads: 1,115 | 618 |
| Games Started | 10 | Leads: 17 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | Leads: 652 | 330 |
| Strikeouts | Leads: 1,173 | 804 |
| Walks not scored | 286 | 252 |
| Hits Allowed not scored | 998 | 616 |
| Home Runs Allowed not scored | 71 | 73 |
| Innings Pitched | Leads: 1,283.2 | 765.0 |
| ERA | Leads: 2.21 | 2.93 |
| WHIP | Leads: 1.00 | 1.13 |
| K/9 | 8.22 | Leads: 9.46 |
| BB/9 | Leads: 2.01 | 2.96 |
PIV Comparison through 2025
By PIV (Player Impact Value), Mariano Rivera outpaces John Wetteland 52,571 to 20,366 — driven by both sides of the ledger: 2,767 PIV per season to 1,697, across 19 seasons to 12. 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).
Mariano Rivera
No seasons meet the qualifying workload, so there is no peak-season list to show.
John Wetteland
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 John Wetteland 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 Mariano Rivera and John Wetteland careers compare
Mariano Rivera and John Wetteland were active at the same time between 1995 and 2000. Playing time explains much of the gap in the counting rows: Mariano Rivera appeared in 1,115 games to John Wetteland's 618. John Wetteland's edges on the table are starts (17 to 10) and strikeouts per nine (9.46 to 8.22). By rate, Mariano Rivera struck out 8.22 and walked 2.01 per nine innings; John Wetteland struck out 9.46 and walked 2.96. Mariano Rivera worked mostly in relief (10 starts in 1,115 games, 652 saves), and John Wetteland worked mostly in relief (17 starts in 618 games, 330 saves). In WHIP, Mariano Rivera's 1.00 beats John Wetteland's 1.13.
Mariano Rivera vs John Wetteland: Frequently Asked Questions
- Who was better, Mariano Rivera or John Wetteland?
- By the career statistics compared on this page, Mariano Rivera leads John Wetteland in 8 of the 12 scored categories.
- Who had the better ERA?
- Mariano Rivera, with 2.21 to John Wetteland's 2.93.
- Who won more games?
- Mariano Rivera, with 82 to John Wetteland's 48.
- Who recorded more strikeouts?
- Mariano Rivera, with 1,173 to John Wetteland's 804.
- Who had the better WHIP?
- Mariano Rivera, with 1.00 to John Wetteland's 1.13.