Jack Chesbro vs John Clarkson: Career Stats Comparison
John Clarkson 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). Jack Chesbro played 1899–1909 as a pitcher; John Clarkson played 1882–1894 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
Jack Chesbro (1899–1909) and John Clarkson (1882–1894) — breaking in during the 1890s and the 1880s respectively, so they pitched against very different hitting environments. Jack Chesbro finished with 198 wins and 1,265 strikeouts; John Clarkson finished with 328 wins and 1,978 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Jack Chesbro, with 2.68 to John Clarkson's 2.81.
- Who won more games? John Clarkson, with 328 to Jack Chesbro's 198.
- Who recorded more strikeouts? John Clarkson, with 1,978 to Jack Chesbro's 1,265.
- Who had the better WHIP? Jack Chesbro, with 1.15 to John Clarkson's 1.21.
- Who pitched more innings? John Clarkson, with 4,536.1 to Jack Chesbro's 2,896.2.
- Who threw more shutouts? John Clarkson, with 37 to Jack Chesbro's 35.
- Who has the higher career Pitcher PIV? John Clarkson, with 36,438 career Pitcher PIV to Jack Chesbro's 22,639.
Jack Chesbro
John Clarkson
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 1890s and the 1880s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Jack Chesbro | John Clarkson |
|---|---|---|
| Wins | 198 | Leads: 328 |
| Losses not scored | 132 | 178 |
| Games | 392 | Leads: 531 |
| Games Started | 332 | Leads: 518 |
| Complete Games | 260 | Leads: 485 |
| Shutouts | 35 | Leads: 37 |
| Saves | 5 | 5 |
| Strikeouts | 1,265 | Leads: 1,978 |
| Walks not scored | 690 | 1,191 |
| Hits Allowed not scored | 2,647 | 4,295 |
| Home Runs Allowed not scored | 39 | 159 |
| Innings Pitched | 2,896.2 | Leads: 4,536.1 |
| ERA | Leads: 2.68 | 2.81 |
| WHIP | Leads: 1.15 | 1.21 |
| K/9 | Leads: 3.93 | 3.92 |
| BB/9 | Leads: 2.14 | 2.36 |
PIV Comparison through 2025
By PIV (Player Impact Value), John Clarkson outpaces Jack Chesbro 36,438 to 22,639 — driven by both sides of the ledger: 2,803 PIV per season to 1,887, across 13 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).
Jack Chesbro — top 3 seasons by ERA (lower is better)
John Clarkson — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, John Clarkson leads in wins, strikeouts, and innings pitched, while Jack Chesbro owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to John Clarkson. PIV agrees: John Clarkson grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Jack Chesbro and John Clarkson careers compare
The two careers never overlapped: John Clarkson's ended in 1894, and Jack Chesbro debuted in 1899. With 392 games against 531 across 12 and 13 PIV seasons, neither player's totals owe much to extra seasons. Where Jack Chesbro comes out ahead, it is in ERA (2.68 to 2.81), WHIP (1.15 to 1.21), and strikeouts per nine (3.93 to 3.92). The per-nine rows read 3.93 strikeouts and 2.14 walks for Jack Chesbro, 3.92 and 2.36 for John Clarkson. Both had the same role: Jack Chesbro was mainly a starter (332 starts in 392 games); John Clarkson was mainly a starter (518 starts in 531 games). In WHIP, Jack Chesbro's 1.15 beats John Clarkson's 1.21.
Jack Chesbro vs John Clarkson: Frequently Asked Questions
- Who was better, Jack Chesbro or John Clarkson?
- By the career statistics compared on this page, John Clarkson leads Jack Chesbro in 7 of the 12 scored categories.
- Who had the better ERA?
- Jack Chesbro, with 2.68 to John Clarkson's 2.81.
- Who won more games?
- John Clarkson, with 328 to Jack Chesbro's 198.
- Who recorded more strikeouts?
- John Clarkson, with 1,978 to Jack Chesbro's 1,265.
- Who had the better WHIP?
- Jack Chesbro, with 1.15 to John Clarkson's 1.21.