John Clarkson played 12 seasons (1882–1894) for Worcester Brown Stockings, CHC, ATL and Cleveland Spiders. Career regular-season line: a 328–178 record, 1,978 strikeouts and a 2.81 ERA. Mountain Arc career, peaking in 1889. Inducted into the Hall of Fame in 1963.
Sport-specific career totals from the active profile tables, with VAL shown whenever the sport has a value file.
Career boards only, within MLB
Cross-sport prominence: 99.1th percentile among MLB careers — a within-sport percentile, because career value is not comparable across sports.
Historical franchise
No continuous modern successor — attributed to the franchise itself, never folded into a modern club.
Explore baseball's lost clubs →MLB Advanced — ERA+ & OPS+ LeadersMLB Age Milestones — Youngest to 1,000 Hits, 100 HR, 100 Wins and 1,000 KMLB Breakout Seasons — Biggest Career-High LeapsMLB Career Arc TypesMLB Career Dominance — top-25 in multiple all-time categoriesMLB Clutch Delta — Who Rises in OctoberMLB Compilers vs Comets — Career ShapeMLB Consistency Index — Mr. Reliable vs Boom-BustMLB Era-Adjusted Careers — Greatest Careers on One Scale
Players whose careers had the same shape — total value, peak, best three-season stretch, length and when the value came — measured with VAL against their own leagues.
Bio, rosters, and year-by-year/career stat splits come directly from MLB's own official public StatsAPI.
Fan Rating
Rate John Clarkson — All-Time
11 seasons · peak 23.5 in 1889 · league-best seasons: 1885, 1889
VAL (Value Above League) measures each MLB season against that season's league; the dashed line is zero — a season that added nothing above the league's fringe. ● peak · ○ league-best season.
54.3 career wins over 11 seasons · 1 win = 2.61 VAL
Best season · 1889 · +9.0 wins
Latest season · 1894 · +2.8 wins
VAL 3.0 measures each part of a MLB player's game in his sport's own currency against what that season's fringe players produced, converted to team wins with rates fitted from every team-season in the encyclopedia.
How often John Clarkson led or placed top-ten on a MLB season board, and the shape of the career — computed from the same per-season boards the year pages publish, so every number is checkable.
Career arc
Mountain Arc
The classic build → peak → decline arc — rose to a dominant peak, then faded. Peak 1889, 11 rated seasons.
Where John Clarkson ranks on StatVault's all-time league-relative boards (park-unadjusted; 100 = league average that season).
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