Edwin Diaz vs Hoyt Wilhelm: Career Stats Comparison
Edwin Diaz (2016–present) and Hoyt Wilhelm (1952–1972) — breaking in during the 2010s and the 1950s respectively, so they pitched against very different hitting environments. Edwin Diaz compiled 28 wins and 839 strikeouts; Hoyt Wilhelm put up 143 wins and 1,610 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Hoyt Wilhelm
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. For pitchers, lower ERA, WHIP, and BB/9 lead; higher K/9 leads.
| Statistic | Edwin Diaz | Hoyt Wilhelm |
|---|---|---|
| Wins | 28 | 143 |
| Losses | 36 | 122 |
| Games | 520 | 1,070 |
| Games Started | 0 | 52 |
| Complete Games | 0 | 20 |
| Shutouts | 0 | 5 |
| Saves | 253 | 227 |
| Strikeouts | 839 | 1,610 |
| Walks | 182 | 778 |
| Hits Allowed | 356 | 1,757 |
| Home Runs Allowed | 54 | 150 |
| Innings Pitched | 519 | 2,254 |
| ERA | 2.82 | 2.52 |
| WHIP | 1.04 | 1.12 |
| K/9 | 14.54 | 6.43 |
| BB/9 | 3.15 | 3.11 |
PIV Comparison
By PIV (Player Impact Value), Hoyt Wilhelm outpaces Edwin Diaz 40,894 to 21,805 — a gap driven primarily by per-season impact (1,573 vs 2,423 per year). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Edwin Diaz — top 0 seasons by ERA (lower is better)
Hoyt Wilhelm — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Hoyt Wilhelm leads in wins, strikeouts, ERA, and innings pitched, while Edwin Diaz owns WHIP and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Hoyt Wilhelm. PIV agrees: Hoyt Wilhelm grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.