{"sport":"mlb","slug":"john-milligan-1884","bio":{"fullName":"John Milligan","position":"C","team":null,"heightInches":72,"weightLbs":192,"birthDate":"1861-08-08","rookieSeason":1884,"lastSeason":1893,"status":"RET","externalIds":{"mlbam":"119136","chadwick":"0347b58a","retro":"millj108","wikidata":"Q16031592"}},"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":1884,"seasonType":"REG","team":"Philadelphia Athletics","gamesPlayed":66,"values":{"g":66,"ab":268,"r":39,"h":77,"doubles":20,"triples":3,"hr":3,"rbi":null,"sb":null,"bb":8,"so":null,"avg":0.287,"obp":0.308,"slg":0.418,"ops":0.726},"rowScope":"team"},{"season":1885,"seasonType":"REG","team":"Philadelphia Athletics","gamesPlayed":67,"values":{"g":67,"ab":265,"r":35,"h":71,"doubles":15,"triples":4,"hr":2,"rbi":39,"sb":null,"bb":7,"so":null,"avg":0.268,"obp":0.289,"slg":0.377,"ops":0.666},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"Philadelphia Athletics","gamesPlayed":75,"values":{"g":75,"ab":301,"r":52,"h":76,"doubles":17,"triples":3,"hr":5,"rbi":45,"sb":18,"bb":21,"so":null,"avg":0.252,"obp":0.301,"slg":0.379,"ops":0.68},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Philadelphia Athletics","gamesPlayed":95,"values":{"g":95,"ab":377,"r":54,"h":114,"doubles":27,"triples":4,"hr":2,"rbi":50,"sb":8,"bb":21,"so":null,"avg":0.302,"obp":0.344,"slg":0.411,"ops":0.755},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"St. Louis Cardinals","gamesPlayed":63,"values":{"g":63,"ab":219,"r":19,"h":55,"doubles":6,"triples":2,"hr":5,"rbi":37,"sb":3,"bb":17,"so":null,"avg":0.251,"obp":0.311,"slg":0.365,"ops":0.676},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"St. Louis Cardinals","gamesPlayed":72,"values":{"g":72,"ab":273,"r":53,"h":100,"doubles":30,"triples":2,"hr":12,"rbi":76,"sb":2,"bb":16,"so":19,"avg":0.366,"obp":0.408,"slg":0.623,"ops":1.031},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"Philadelphia Quakers","gamesPlayed":62,"values":{"g":62,"ab":234,"r":38,"h":69,"doubles":9,"triples":3,"hr":3,"rbi":57,"sb":2,"bb":19,"so":19,"avg":0.295,"obp":0.363,"slg":0.397,"ops":0.76},"rowScope":"team"},{"season":1891,"seasonType":"REG","team":"Philadelphia Athletics","gamesPlayed":118,"values":{"g":118,"ab":455,"r":75,"h":138,"doubles":35,"triples":12,"hr":11,"rbi":106,"sb":2,"bb":56,"so":51,"avg":0.303,"obp":0.397,"slg":0.505,"ops":0.902},"rowScope":"team"},{"season":1892,"seasonType":"REG","team":"Washington Senators","gamesPlayed":88,"values":{"g":88,"ab":323,"r":40,"h":89,"doubles":20,"triples":9,"hr":4,"rbi":43,"sb":2,"bb":26,"so":24,"avg":0.276,"obp":0.335,"slg":0.43,"ops":0.765},"rowScope":"team"},{"season":1893,"seasonType":"REG","gamesPlayed":66,"gamesStarted":null,"values":{"g":66,"ab":249,"r":35,"h":59,"doubles":10,"triples":8,"hr":2,"rbi":44,"sb":4,"bb":19,"so":21,"avg":0.237,"slg":0.365,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1893,"seasonType":"REG","team":"Baltimore Orioles","gamesPlayed":24,"values":{"g":24,"ab":102,"r":19,"h":25,"doubles":5,"triples":2,"hr":1,"rbi":19,"sb":2,"bb":5,"so":7,"avg":0.245,"obp":0.294,"slg":0.363,"ops":0.657},"rowScope":"team"},{"season":1893,"seasonType":"REG","team":"SF","gamesPlayed":42,"values":{"g":42,"ab":147,"r":16,"h":34,"doubles":5,"triples":6,"hr":1,"rbi":25,"sb":2,"bb":14,"so":14,"avg":0.231,"obp":0.302,"slg":0.367,"ops":0.669},"rowScope":"team"}],"careerTotals":{"REG":{"g":772,"ab":2964,"r":440,"h":848,"doubles":189,"triples":50,"hr":49,"rbi":497,"sb":41,"bb":210,"so":134,"avg":0.286,"obp":0.341,"slg":0.433,"ops":0.774}}},{"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":1884,"seasonType":"REG","team":"Philadelphia Athletics","values":{"ops_plus":141,"era_plus":null},"rowScope":"team"},{"season":1885,"seasonType":"REG","team":"Philadelphia Athletics","values":{"ops_plus":115,"era_plus":null},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"Philadelphia Athletics","values":{"ops_plus":127,"era_plus":null},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Philadelphia Athletics","values":{"ops_plus":111,"era_plus":null},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"St. Louis Cardinals","values":{"ops_plus":122,"era_plus":null},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"St. Louis Cardinals","values":{"ops_plus":200,"era_plus":null},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"Philadelphia Quakers","values":{"ops_plus":108,"era_plus":null},"rowScope":"team"},{"season":1891,"seasonType":"REG","team":"Philadelphia Athletics","values":{"ops_plus":159,"era_plus":null},"rowScope":"team"},{"season":1892,"seasonType":"REG","team":"Washington Senators","values":{"ops_plus":137,"era_plus":null},"rowScope":"team"},{"season":1893,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1893,"seasonType":"REG","team":"Baltimore Orioles","values":{"ops_plus":76,"era_plus":null},"rowScope":"team"},{"season":1893,"seasonType":"REG","team":"SF","values":{"ops_plus":82,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":131,"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":"2026-07-03T08:01:23.026Z"}