Mariano Rivera vs Ryan Walker: 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; Ryan Walker 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
Mariano Rivera (1995–2013) and Ryan Walker (2023–present) — breaking in during the 1990s and the 2020s respectively, so they pitched against very different hitting environments. Mariano Rivera finished with 82 wins and 1,173 strikeouts; Ryan Walker has 20 wins and 260 strikeouts through October 6, 2026. 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 Ryan Walker's 3.56.
- Who won more games? Mariano Rivera, with 82 to Ryan Walker's 20.
- Who recorded more strikeouts? Mariano Rivera, with 1,173 to Ryan Walker's 260.
- Who had the better WHIP? Mariano Rivera, with 1.00 to Ryan Walker's 1.23.
- Who pitched more innings? Mariano Rivera, with 1,283.2 to Ryan Walker's 235.1.
- 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 Ryan Walker's 5,524.
Mariano Rivera
Ryan Walker
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 2020s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Ryan Walker is still active — his totals below are current through October 6, 2026.
| Statistic | Mariano Rivera | Ryan Walker |
|---|---|---|
| Wins | Leads: 82 | 20 |
| Losses not scored | 60 | 15 |
| Games | Leads: 1,115 | 226 |
| Games Started | 10 | Leads: 14 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | Leads: 652 | 31 |
| Strikeouts | Leads: 1,173 | 260 |
| Walks not scored | 286 | 79 |
| Hits Allowed not scored | 998 | 211 |
| Home Runs Allowed not scored | 71 | 22 |
| Innings Pitched | Leads: 1,283.2 | 235.1 |
| ERA | Leads: 2.21 | 3.56 |
| WHIP | Leads: 1.00 | 1.23 |
| K/9 | 8.22 | Leads: 9.94 |
| BB/9 | Leads: 2.01 | 3.02 |
PIV Comparison through 2025
By PIV (Player Impact Value), Mariano Rivera outpaces Ryan Walker 52,571 to 5,524 — driven by both sides of the ledger: 2,767 PIV per season to 1,841, across 19 seasons to 3. 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.
Ryan Walker
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 Ryan Walker 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 Ryan Walker careers compare
No season is shared: Mariano Rivera played 1995–2013, Ryan Walker 2023–present. Playing time explains much of the gap in the counting rows: Mariano Rivera appeared in 1,115 games to Ryan Walker's 226. Ryan Walker's edges on the table are starts (14 to 10) and strikeouts per nine (9.94 to 8.22). By rate, Mariano Rivera struck out 8.22 and walked 2.01 per nine innings; Ryan Walker struck out 9.94 and walked 3.02. Mariano Rivera worked mostly in relief (10 starts in 1,115 games, 652 saves), and Ryan Walker worked mostly in relief (14 starts in 226 games, 31 saves). Mariano Rivera allowed fewer baserunners, a 1.00 WHIP to Ryan Walker's 1.23. Because Ryan Walker is still playing, the totals above will keep moving through the season.
Mariano Rivera vs Ryan Walker: Frequently Asked Questions
- Who was better, Mariano Rivera or Ryan Walker?
- By the career statistics compared on this page, Mariano Rivera leads Ryan Walker in 8 of the 12 scored categories.
- Who had the better ERA?
- Mariano Rivera, with 2.21 to Ryan Walker's 3.56.
- Who won more games?
- Mariano Rivera, with 82 to Ryan Walker's 20.
- Who recorded more strikeouts?
- Mariano Rivera, with 1,173 to Ryan Walker's 260.
- Who had the better WHIP?
- Mariano Rivera, with 1.00 to Ryan Walker's 1.23.