{"sport":"mlb","slug":"george-anderson","bio":{"fullName":"George Anderson","position":"RF","team":"STL","heightInches":68,"weightLbs":160,"birthDate":"1889-09-26","rookieSeason":1914,"lastSeason":1918,"status":"RET","externalIds":{"mlbam":"110237","chadwick":"d97328a9","retro":"andeg102","wikidata":"Q5536242"}},"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":1914,"seasonType":"REG","team":"Brooklyn Feds","gamesPlayed":98,"values":{"g":98,"ab":364,"r":58,"h":115,"doubles":13,"triples":3,"hr":3,"rbi":24,"sb":16,"bb":31,"so":50,"avg":0.316,"obp":0.376,"slg":0.393,"ops":0.769},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Brooklyn Feds","gamesPlayed":136,"values":{"g":136,"ab":511,"r":70,"h":135,"doubles":23,"triples":9,"hr":2,"rbi":39,"sb":20,"bb":52,"so":54,"avg":0.264,"obp":0.342,"slg":0.356,"ops":0.698},"rowScope":"team"},{"season":1918,"seasonType":"REG","team":"STL","gamesPlayed":35,"values":{"g":35,"ab":132,"r":20,"h":39,"doubles":4,"triples":5,"hr":0,"rbi":6,"sb":0,"bb":15,"so":7,"avg":0.295,"obp":0.38,"slg":0.402,"ops":0.782},"rowScope":"team"}],"careerTotals":{"REG":{"g":269,"ab":1007,"r":148,"h":289,"doubles":40,"triples":17,"hr":5,"rbi":69,"sb":36,"bb":98,"so":111,"avg":0.287,"obp":0.359,"slg":0.375,"ops":0.734}}},{"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":1914,"seasonType":"REG","team":"Brooklyn Feds","values":{"ops_plus":125,"era_plus":null},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Brooklyn Feds","values":{"ops_plus":110,"era_plus":null},"rowScope":"team"},{"season":1918,"seasonType":"REG","team":"STL","values":{"ops_plus":142,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":120,"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":"2026-07-03T07:40:28.886Z"}