{"sport":"mlb","slug":"jack-hamilton","bio":{"fullName":"Jack Hamilton","position":"P","team":"CWS","heightInches":72,"weightLbs":200,"birthDate":"1938-12-25","rookieSeason":1962,"lastSeason":1969,"status":"RET","externalIds":{"mlbam":"115381","chadwick":"7b3b5e20","retro":"hamij101","wikidata":"Q16104878"}},"draft":null,"statTables":[{"id":"batting","label":"Batting","columns":[{"key":"g"},{"key":"ab"},{"key":"r"},{"key":"h"},{"key":"doubles"},{"key":"triples"},{"key":"hr"},{"key":"rbi"},{"key":"sb"},{"key":"bb"},{"key":"so"},{"key":"avg"},{"key":"obp"},{"key":"slg"},{"key":"ops"}],"rows":[{"season":1962,"seasonType":"REG","team":"PHI","gamesPlayed":41,"values":{"g":41,"ab":54,"r":1,"h":3,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":2,"so":29,"avg":0.056,"obp":0.089,"slg":0.056,"ops":0.145},"rowScope":"team"},{"season":1963,"seasonType":"REG","team":"PHI","gamesPlayed":19,"values":{"g":19,"ab":3,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":3,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"},{"season":1964,"seasonType":"REG","team":"DET","gamesPlayed":5,"values":{"g":5,"ab":3,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":2,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"},{"season":1965,"seasonType":"REG","team":"DET","gamesPlayed":4,"values":{"g":4,"ab":0,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":0,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"},{"season":1966,"seasonType":"REG","team":"NYM","gamesPlayed":57,"values":{"g":57,"ab":38,"r":2,"h":5,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":1,"so":13,"avg":0.132,"obp":0.154,"slg":0.132,"ops":0.286},"rowScope":"team"},{"season":1967,"seasonType":"REG","gamesPlayed":43,"gamesStarted":null,"values":{"g":43,"ab":43,"r":3,"h":7,"doubles":0,"triples":0,"hr":1,"rbi":5,"sb":0,"bb":0,"so":17,"avg":0.163,"slg":0.233,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1967,"seasonType":"REG","team":"LAA","gamesPlayed":26,"values":{"g":26,"ab":38,"r":1,"h":6,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":0,"so":16,"avg":0.158,"obp":0.158,"slg":0.158,"ops":0.316},"rowScope":"team"},{"season":1967,"seasonType":"REG","team":"NYM","gamesPlayed":17,"values":{"g":17,"ab":5,"r":2,"h":1,"doubles":0,"triples":0,"hr":1,"rbi":4,"sb":0,"bb":0,"so":1,"avg":0.2,"obp":0.2,"slg":0.8,"ops":1},"rowScope":"team"},{"season":1968,"seasonType":"REG","team":"LAA","gamesPlayed":21,"values":{"g":21,"ab":7,"r":0,"h":1,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":0,"so":5,"avg":0.143,"obp":0.143,"slg":0.143,"ops":0.286},"rowScope":"team"},{"season":1969,"seasonType":"REG","gamesPlayed":28,"gamesStarted":null,"values":{"g":28,"ab":2,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":1,"avg":0,"slg":0,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1969,"seasonType":"REG","team":"CLE","gamesPlayed":20,"values":{"g":20,"ab":2,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":1,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"},{"season":1969,"seasonType":"REG","team":"CWS","gamesPlayed":8,"values":{"g":8,"ab":0,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":0,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"}],"careerTotals":{"REG":{"g":218,"ab":150,"r":6,"h":16,"doubles":0,"triples":0,"hr":1,"rbi":7,"sb":0,"bb":3,"so":70,"avg":0.107,"obp":0.124,"slg":0.127,"ops":0.251}}},{"id":"pitching","label":"Pitching","columns":[{"key":"g"},{"key":"gs"},{"key":"w"},{"key":"l"},{"key":"sv"},{"key":"ip"},{"key":"so"},{"key":"bb"},{"key":"h"},{"key":"er"},{"key":"hr"},{"key":"era"},{"key":"whip"}],"rows":[{"season":1962,"seasonType":"REG","team":"PHI","gamesPlayed":41,"values":{"g":41,"gs":26,"w":9,"l":12,"sv":2,"ip":182,"so":101,"bb":107,"h":185,"er":103,"hr":18,"era":5.09,"whip":1.6},"rowScope":"team"},{"season":1963,"seasonType":"REG","team":"PHI","gamesPlayed":19,"values":{"g":19,"gs":1,"w":2,"l":1,"sv":1,"ip":30,"so":23,"bb":17,"h":22,"er":18,"hr":3,"era":5.4,"whip":1.3},"rowScope":"team"},{"season":1964,"seasonType":"REG","team":"DET","gamesPlayed":5,"values":{"g":5,"gs":1,"w":0,"l":1,"sv":0,"ip":15,"so":5,"bb":8,"h":24,"er":14,"hr":2,"era":8.4,"whip":2.13},"rowScope":"team"},{"season":1965,"seasonType":"REG","team":"DET","gamesPlayed":4,"values":{"g":4,"gs":1,"w":1,"l":1,"sv":0,"ip":4.1,"so":3,"bb":4,"h":6,"er":7,"hr":1,"era":14.54,"whip":2.31},"rowScope":"team"},{"season":1966,"seasonType":"REG","team":"NYM","gamesPlayed":57,"values":{"g":57,"gs":13,"w":6,"l":13,"sv":13,"ip":148.2,"so":93,"bb":88,"h":138,"er":65,"hr":13,"era":3.93,"whip":1.52},"rowScope":"team"},{"season":1967,"seasonType":"REG","gamesPlayed":43,"gamesStarted":null,"values":{"g":43,"gs":21,"w":11,"l":6,"sv":1,"so":96,"bb":79,"h":128,"er":56,"hr":8,"ip":150.2,"era":3.35,"whip":1.37},"team":"TOT","rowScope":"total"},{"season":1967,"seasonType":"REG","team":"LAA","gamesPlayed":26,"values":{"g":26,"gs":20,"w":9,"l":6,"sv":0,"ip":119.1,"so":74,"bb":63,"h":104,"er":43,"hr":6,"era":3.24,"whip":1.4},"rowScope":"team"},{"season":1967,"seasonType":"REG","team":"NYM","gamesPlayed":17,"values":{"g":17,"gs":1,"w":2,"l":0,"sv":1,"ip":31.1,"so":22,"bb":16,"h":24,"er":13,"hr":2,"era":3.73,"whip":1.28},"rowScope":"team"},{"season":1968,"seasonType":"REG","team":"LAA","gamesPlayed":21,"values":{"g":21,"gs":2,"w":3,"l":1,"sv":2,"ip":38,"so":18,"bb":15,"h":34,"er":14,"hr":0,"era":3.32,"whip":1.29},"rowScope":"team"},{"season":1969,"seasonType":"REG","gamesPlayed":28,"gamesStarted":null,"values":{"g":28,"gs":0,"w":0,"l":5,"sv":1,"so":18,"bb":30,"h":60,"er":31,"hr":3,"ip":43,"era":6.49,"whip":2.09},"team":"TOT","rowScope":"total"},{"season":1969,"seasonType":"REG","team":"CLE","gamesPlayed":20,"values":{"g":20,"gs":0,"w":0,"l":2,"sv":1,"ip":30.2,"so":13,"bb":23,"h":37,"er":15,"hr":2,"era":4.4,"whip":1.96},"rowScope":"team"},{"season":1969,"seasonType":"REG","team":"CWS","gamesPlayed":8,"values":{"g":8,"gs":0,"w":0,"l":3,"sv":0,"ip":12.1,"so":5,"bb":7,"h":23,"er":16,"hr":1,"era":11.68,"whip":2.43},"rowScope":"team"}],"careerTotals":{"REG":{"g":218,"gs":65,"w":32,"l":40,"sv":20,"ip":611.2,"so":357,"bb":348,"h":597,"er":308,"hr":48,"era":4.53,"whip":1.54}}},{"id":"advanced","label":"Advanced (League-Relative)","columns":[{"key":"ops_plus","label":"OPS+","description":"On-base plus slugging vs the player's own season+league (100 = league average). Park-unadjusted; OBP uses a consistent (H+BB)/(AB+BB) rate. Higher is better.","format":"int","higherIsBetter":true},{"key":"era_plus","label":"ERA+","description":"Earned-run average vs the player's own season+league (100 = league average). Park-unadjusted. Higher is better.","format":"int","higherIsBetter":true}],"rows":[{"season":1962,"seasonType":"REG","team":"PHI","values":{"ops_plus":-59,"era_plus":78},"rowScope":"team"},{"season":1963,"seasonType":"REG","team":"PHI","values":{"ops_plus":-100,"era_plus":61},"rowScope":"team"},{"season":1964,"seasonType":"REG","team":"DET","values":{"ops_plus":-100,"era_plus":41},"rowScope":"team"},{"season":1965,"seasonType":"REG","team":"DET","values":{"ops_plus":null,"era_plus":24},"rowScope":"team"},{"season":1966,"seasonType":"REG","team":"NYM","values":{"ops_plus":-16,"era_plus":91},"rowScope":"team"},{"season":1967,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1967,"seasonType":"REG","team":"LAA","values":{"ops_plus":-3,"era_plus":101},"rowScope":"team"},{"season":1967,"seasonType":"REG","team":"NYM","values":{"ops_plus":186,"era_plus":88},"rowScope":"team"},{"season":1968,"seasonType":"REG","team":"LAA","values":{"ops_plus":-9,"era_plus":92},"rowScope":"team"},{"season":1969,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1969,"seasonType":"REG","team":"CLE","values":{"ops_plus":-100,"era_plus":90},"rowScope":"team"},{"season":1969,"seasonType":"REG","team":"CWS","values":{"ops_plus":null,"era_plus":30},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":-27,"era_plus":79}},"advancedMeta":{"method":"computed in-house from MLB StatsAPI season batting/pitching lines, normalized to each player's own (season, league) baseline","formulas":{"era_plus":"100 * lgERA / playerERA (league ERA = 9 * ΣER / ΣIP over the season+league)","ops_plus":"100 * (OBP/lgOBP + SLG/lgSLG - 1)","career_era_plus":"innings-weighted league ERA / career ERA (B-Ref method)","career_ops_plus":"AB-weighted OBP & SLG against AB-weighted league rates"},"caveats":["PARK-UNADJUSTED: no park-factor data exists in the corpus, so these are league-relative but not park-adjusted (true B-Ref ERA+/OPS+ also divide by a park factor)","OBP baseline uses a consistent (H+BB)/(AB+BB) reached-base rate for BOTH player and league — the source feed carries no HBP or SF, so this is not the full (H+BB+HBP)/(AB+BB+HBP+SF) OBP; SLG is exact from the hit-type columns","league resolved from team code + season (most-recently-founded franchise existing by that season); the same resolver builds the baseline and looks up the player, so ratios stay internally coherent","a (season, league) bucket below the sample floor (3000 AB batting / 1000 IP pitching) yields null — no noisy baselines","regular season only; postseason lines are excluded from league baselines and metrics","AL and NL and each historical/Negro league are normalized separately — never blended across leagues or eras"]}}],"dataSources":["MLB StatsAPI (statsapi.mlb.com — official public league API; facts only, raw payloads not republished)"],"generatedAt":"2026-07-03T03:10:36.276Z"}