Edwin Diaz vs Bobby Shantz: Career Stats Comparison
Bobby Shantz has the better career line of the two, leading 7 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Edwin Diaz has played 2016–present as a pitcher; Bobby Shantz played 1949–1964 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
Edwin Diaz (2016–present) and Bobby Shantz (1949–1964) — breaking in during the 2010s and the 1940s respectively, so they pitched against very different hitting environments. Edwin Diaz has 30 wins and 867 strikeouts through October 12, 2026; Bobby Shantz finished with 119 wins and 1,072 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Edwin Diaz, with 3.03 to Bobby Shantz's 3.38.
- Who won more games? Bobby Shantz, with 119 to Edwin Diaz's 30.
- Who recorded more strikeouts? Bobby Shantz, with 1,072 to Edwin Diaz's 867.
- Who had the better WHIP? Edwin Diaz, with 1.07 to Bobby Shantz's 1.26.
- Who pitched more innings? Bobby Shantz, with 1,935.2 to Edwin Diaz's 538.0.
- Who threw more shutouts? Bobby Shantz, with 15 to Edwin Diaz's 0.
- Who has the higher career Pitcher PIV? Bobby Shantz, with 24,845 career Pitcher PIV to Edwin Diaz's 21,805.
Bobby Shantz
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 1940s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Edwin Diaz is still active — his totals below are current through October 12, 2026.
| Statistic | Edwin Diaz | Bobby Shantz |
|---|---|---|
| Wins | 30 | Leads: 119 |
| Losses not scored | 38 | 99 |
| Games | Leads: 541 | 537 |
| Games Started | 0 | Leads: 171 |
| Complete Games | 0 | Leads: 78 |
| Shutouts | 0 | Leads: 15 |
| Saves | Leads: 260 | 48 |
| Strikeouts | 867 | Leads: 1,072 |
| Walks not scored | 193 | 643 |
| Hits Allowed not scored | 382 | 1,795 |
| Home Runs Allowed not scored | 57 | 151 |
| Innings Pitched | 538.0 | Leads: 1,935.2 |
| ERA | Leads: 3.03 | 3.38 |
| WHIP | Leads: 1.07 | 1.26 |
| K/9 | Leads: 14.50 | 4.98 |
| BB/9 | 3.23 | Leads: 2.99 |
PIV Comparison through 2025
By PIV (Player Impact Value), Bobby Shantz leads Edwin Diaz 24,845 to 21,805 — a longevity gap rather than a per-season one: Bobby Shantz played 19 seasons to Edwin Diaz's 9, while Edwin Diaz carries the higher per-season figure (2,423 to 1,308). 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).
Edwin Diaz
No seasons meet the qualifying workload, so there is no peak-season list to show.
Bobby Shantz — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Bobby Shantz leads in wins, strikeouts, and innings pitched, while Edwin Diaz owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Bobby Shantz. PIV agrees: Bobby Shantz grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Edwin Diaz and Bobby Shantz careers compare
No season is shared: Bobby Shantz played 1949–1964, Edwin Diaz 2016–present. With 541 games against 537 across 9 and 19 PIV seasons, neither player's totals owe much to extra seasons. By rate, Edwin Diaz struck out 14.50 and walked 3.23 per nine innings; Bobby Shantz struck out 4.98 and walked 2.99. Their roles differ: Edwin Diaz worked mostly in relief (0 starts in 541 games, 260 saves); Bobby Shantz split time between starting and relief (171 starts in 537 games). Complete games (0 to 78) show how differently the two eras used starters. In WHIP, Edwin Diaz's 1.07 beats Bobby Shantz's 1.26. Edwin Diaz's numbers are live and update with each game, so the comparison is a snapshot.
Edwin Diaz vs Bobby Shantz: Frequently Asked Questions
- Who was better, Edwin Diaz or Bobby Shantz?
- By the career statistics compared on this page, Bobby Shantz leads Edwin Diaz in 7 of the 12 scored categories.
- Who had the better ERA?
- Edwin Diaz, with 3.03 to Bobby Shantz's 3.38.
- Who won more games?
- Bobby Shantz, with 119 to Edwin Diaz's 30.
- Who recorded more strikeouts?
- Bobby Shantz, with 1,072 to Edwin Diaz's 867.
- Who had the better WHIP?
- Edwin Diaz, with 1.07 to Bobby Shantz's 1.26.