{"sport":"mlb","slug":"bill-george","bio":{"fullName":"Bill George","position":"P","team":null,"heightInches":68,"weightLbs":165,"birthDate":"1865-01-27","rookieSeason":1887,"lastSeason":1889,"status":"RET","externalIds":{"mlbam":"114705","chadwick":"9ceef57d","retro":"georb101","wikidata":"Q4909122"}},"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":1887,"seasonType":"REG","team":"SF","gamesPlayed":13,"values":{"g":13,"ab":53,"r":6,"h":9,"doubles":0,"triples":0,"hr":0,"rbi":5,"sb":2,"bb":1,"so":6,"avg":0.17,"obp":0.185,"slg":0.17,"ops":0.355},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"SF","gamesPlayed":9,"values":{"g":9,"ab":39,"r":7,"h":9,"doubles":1,"triples":0,"hr":1,"rbi":6,"sb":1,"bb":0,"so":2,"avg":0.231,"obp":0.231,"slg":0.333,"ops":0.564},"rowScope":"team"},{"season":1889,"seasonType":"REG","gamesPlayed":8,"gamesStarted":null,"values":{"g":8,"ab":32,"r":2,"h":8,"doubles":0,"triples":0,"hr":0,"rbi":3,"sb":2,"bb":1,"so":4,"avg":0.25,"slg":0.25,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1889,"seasonType":"REG","team":"Columbus Colts","gamesPlayed":5,"values":{"g":5,"ab":17,"r":1,"h":4,"doubles":0,"triples":0,"hr":0,"rbi":3,"sb":1,"bb":1,"so":1,"avg":0.235,"obp":0.278,"slg":0.235,"ops":0.513},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"SF","gamesPlayed":3,"values":{"g":3,"ab":15,"r":1,"h":4,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":1,"bb":0,"so":3,"avg":0.267,"obp":0.267,"slg":0.267,"ops":0.534},"rowScope":"team"}],"careerTotals":{"REG":{"g":30,"ab":124,"r":15,"h":26,"doubles":1,"triples":0,"hr":1,"rbi":14,"sb":5,"bb":2,"so":12,"avg":0.21,"obp":0.222,"slg":0.242,"ops":0.464}}},{"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":1887,"seasonType":"REG","team":"SF","gamesPlayed":13,"values":{"g":13,"gs":13,"w":3,"l":9,"sv":0,"ip":108,"so":49,"bb":89,"h":126,"er":63,"hr":1,"era":5.25,"whip":1.99},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"SF","gamesPlayed":4,"values":{"g":4,"gs":3,"w":2,"l":1,"sv":0,"ip":33.2,"so":26,"bb":11,"h":18,"er":5,"hr":0,"era":1.34,"whip":0.86},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Columbus Colts","gamesPlayed":2,"values":{"g":2,"gs":0,"w":0,"l":0,"sv":0,"ip":8,"so":3,"bb":3,"h":11,"er":7,"hr":1,"era":7.88,"whip":1.75},"rowScope":"team"}],"careerTotals":{"REG":{"g":19,"gs":16,"w":5,"l":10,"sv":0,"ip":149.2,"so":78,"bb":103,"h":155,"er":75,"hr":2,"era":4.51,"whip":1.72}}},{"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":1887,"seasonType":"REG","team":"SF","values":{"ops_plus":3,"era_plus":78},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"SF","values":{"ops_plus":86,"era_plus":215},"rowScope":"team"},{"season":1889,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1889,"seasonType":"REG","team":"Columbus Colts","values":{"ops_plus":52,"era_plus":48},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"SF","values":{"ops_plus":55,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":40,"era_plus":88}},"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":"2026-07-03T08:11:48.216Z"}