{"sport":"mlb","slug":"henry-milton","bio":{"fullName":"Henry Milton","position":"X","team":null,"heightInches":69,"weightLbs":155,"birthDate":"1911-06-02","rookieSeason":1932,"lastSeason":1940,"status":"RET","externalIds":{"mlbam":"818133","chadwick":"2fc69441","retro":"milth101"}},"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":1932,"seasonType":"REG","team":"Indianapolis ABC's","gamesPlayed":2,"values":{"g":2,"ab":8,"r":0,"h":2,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":null,"avg":0.25,"obp":0.25,"slg":0.25,"ops":0.5},"rowScope":"team"},{"season":1937,"seasonType":"REG","gamesPlayed":58,"gamesStarted":null,"values":{"g":58,"ab":213,"r":63,"h":57,"doubles":7,"triples":4,"hr":2,"rbi":29,"sb":33,"bb":30,"so":null,"avg":0.268,"slg":0.366,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1937,"seasonType":"REG","team":"Chicago American Giants","gamesPlayed":4,"values":{"g":4,"ab":14,"r":2,"h":2,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":4,"so":null,"avg":0.143,"obp":0.333,"slg":0.143,"ops":0.476},"rowScope":"team"},{"season":1937,"seasonType":"REG","team":"Kansas City Monarchs","gamesPlayed":54,"values":{"g":54,"ab":199,"r":61,"h":55,"doubles":7,"triples":4,"hr":2,"rbi":29,"sb":33,"bb":26,"so":null,"avg":0.276,"obp":0.366,"slg":0.382,"ops":0.748},"rowScope":"team"},{"season":1938,"seasonType":"REG","team":"Kansas City Monarchs","gamesPlayed":50,"values":{"g":50,"ab":185,"r":51,"h":62,"doubles":10,"triples":6,"hr":3,"rbi":27,"sb":25,"bb":17,"so":null,"avg":0.335,"obp":0.391,"slg":0.503,"ops":0.894},"rowScope":"team"},{"season":1939,"seasonType":"REG","team":"Kansas City Monarchs","gamesPlayed":50,"values":{"g":50,"ab":192,"r":34,"h":49,"doubles":6,"triples":4,"hr":2,"rbi":15,"sb":11,"bb":16,"so":null,"avg":0.255,"obp":0.322,"slg":0.359,"ops":0.681},"rowScope":"team"},{"season":1940,"seasonType":"REG","team":"Kansas City Monarchs","gamesPlayed":32,"values":{"g":32,"ab":126,"r":23,"h":33,"doubles":3,"triples":1,"hr":1,"rbi":13,"sb":9,"bb":10,"so":null,"avg":0.262,"obp":0.331,"slg":0.325,"ops":0.656},"rowScope":"team"}],"careerTotals":{"REG":{"g":192,"ab":724,"r":171,"h":203,"doubles":26,"triples":15,"hr":8,"rbi":84,"sb":78,"bb":73,"so":null,"avg":0.28,"obp":0.353,"slg":0.391,"ops":0.744}}},{"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":1932,"seasonType":"REG","team":"Indianapolis ABC's","values":{"ops_plus":44,"era_plus":null},"rowScope":"team"},{"season":1937,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1937,"seasonType":"REG","team":"Chicago American Giants","values":{"ops_plus":42,"era_plus":null},"rowScope":"team"},{"season":1937,"seasonType":"REG","team":"Kansas City Monarchs","values":{"ops_plus":115,"era_plus":null},"rowScope":"team"},{"season":1938,"seasonType":"REG","team":"Kansas City Monarchs","values":{"ops_plus":157,"era_plus":null},"rowScope":"team"},{"season":1939,"seasonType":"REG","team":"Kansas City Monarchs","values":{"ops_plus":93,"era_plus":null},"rowScope":"team"},{"season":1940,"seasonType":"REG","team":"Kansas City Monarchs","values":{"ops_plus":90,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":113,"era_plus":null}},"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":"2026-07-03T03:41:46.470Z"}