Gregg Olson vs Devin Williams: Career Stats Comparison
Gregg Olson has the better career line of the two, leading 5 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Gregg Olson played 1988–2001 as a pitcher; Devin Williams has played 2019–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
Gregg Olson (1988–2001) and Devin Williams (2019–present) — breaking in during the 1980s and the 2010s respectively, so they pitched against very different hitting environments. Gregg Olson finished with 40 wins and 588 strikeouts; Devin Williams has 34 wins and 517 strikeouts through October 12, 2026. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Devin Williams, with 2.69 to Gregg Olson's 3.46.
- Who won more games? Gregg Olson, with 40 to Devin Williams's 34.
- Who recorded more strikeouts? Gregg Olson, with 588 to Devin Williams's 517.
- Who had the better WHIP? Devin Williams, with 1.11 to Gregg Olson's 1.38.
- Who pitched more innings? Gregg Olson, with 672.0 to Devin Williams's 338.1.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Devin Williams, with 13,215 career Pitcher PIV to Gregg Olson's 10,029.
Gregg Olson
Devin Williams
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 1980s and the 2010s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Devin Williams is still active — his totals below are current through October 12, 2026.
| Statistic | Gregg Olson | Devin Williams |
|---|---|---|
| Wins | Leads: 40 | 34 |
| Losses not scored | 39 | 18 |
| Games | Leads: 622 | 352 |
| Games Started | 0 | 0 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | Leads: 217 | 102 |
| Strikeouts | Leads: 588 | 517 |
| Walks not scored | 330 | 158 |
| Hits Allowed not scored | 598 | 217 |
| Home Runs Allowed not scored | 46 | 23 |
| Innings Pitched | Leads: 672.0 | 338.1 |
| ERA | 3.46 | Leads: 2.69 |
| WHIP | 1.38 | Leads: 1.11 |
| K/9 | 7.88 | Leads: 13.75 |
| BB/9 | 4.42 | Leads: 4.20 |
PIV Comparison through 2025
By PIV (Player Impact Value), Devin Williams leads Gregg Olson 13,215 to 10,029 — driven by per-season impact — 1,888 PIV per season to 590 — rather than by longevity, since Devin Williams played 7 seasons to Gregg Olson's 17. 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).
Gregg Olson
No seasons meet the qualifying workload, so there is no peak-season list to show.
Devin Williams
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Devin Williams leads in ERA, WHIP, and K/9, while Gregg Olson owns wins, strikeouts, and innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Devin Williams. PIV agrees: Devin Williams grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Gregg Olson and Devin Williams careers compare
No season is shared: Gregg Olson played 1988–2001, Devin Williams 2019–present. Gregg Olson has the far longer record, 622 games against 352 across 17 and 7 PIV seasons, which inflates every career total. Devin Williams's edges on the table are ERA (2.69 to 3.46), WHIP (1.11 to 1.38), and strikeouts per nine (13.75 to 7.88). By rate, Gregg Olson struck out 7.88 and walked 4.42 per nine innings; Devin Williams struck out 13.75 and walked 4.20. Both had the same role: Gregg Olson worked mostly in relief (0 starts in 622 games, 217 saves); Devin Williams worked mostly in relief (0 starts in 352 games, 102 saves). Because Devin Williams is still playing, the totals above will keep moving through the season.
Gregg Olson vs Devin Williams: Frequently Asked Questions
- Who was better, Gregg Olson or Devin Williams?
- By the career statistics compared on this page, Gregg Olson leads Devin Williams in 5 of the 12 scored categories.
- Who had the better ERA?
- Devin Williams, with 2.69 to Gregg Olson's 3.46.
- Who won more games?
- Gregg Olson, with 40 to Devin Williams's 34.
- Who recorded more strikeouts?
- Gregg Olson, with 588 to Devin Williams's 517.
- Who had the better WHIP?
- Devin Williams, with 1.11 to Gregg Olson's 1.38.