Jack Chesbro vs John Clarkson: Career Stats Comparison
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 compiled 198 wins and 1,265 strikeouts; John Clarkson put up 328 wins and 1,978 strikeouts. The numbers below run them through identical career and rate-stat lenses.
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. For pitchers, lower ERA, WHIP, and BB/9 lead; higher K/9 leads.
| Statistic | Jack Chesbro | John Clarkson |
|---|---|---|
| Wins | 198 | 328 |
| Losses | 132 | 178 |
| Games | 392 | 531 |
| Games Started | 332 | 518 |
| Complete Games | 260 | 485 |
| Shutouts | 35 | 37 |
| Saves | 5 | 5 |
| Strikeouts | 1,265 | 1,978 |
| Walks | 690 | 1,191 |
| Hits Allowed | 2,647 | 4,295 |
| Home Runs Allowed | 39 | 159 |
| Innings Pitched | 2,896 | 4,536 |
| ERA | 2.68 | 2.81 |
| WHIP | 1.15 | 1.21 |
| K/9 | 3.93 | 3.92 |
| BB/9 | 2.14 | 2.36 |
PIV Comparison
By PIV (Player Impact Value), John Clarkson outpaces Jack Chesbro 36,438 to 22,639 — a gap driven primarily by per-season impact (2,803 vs 1,887 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).
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.