{"sport":"mlb","slug":"william-brown","bio":{"fullName":"William Brown","position":"1B","team":"STL","heightInches":74,"weightLbs":190,"birthDate":"1866-01-01","rookieSeason":1887,"lastSeason":1894,"status":"RET","externalIds":{"mlbam":"111599","chadwick":"1243c0e6","retro":"broww102","wikidata":"Q8006014"}},"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":49,"values":{"g":49,"ab":170,"r":17,"h":37,"doubles":3,"triples":2,"hr":0,"rbi":25,"sb":10,"bb":10,"so":15,"avg":0.218,"obp":0.273,"slg":0.259,"ops":0.532},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"SF","gamesPlayed":20,"values":{"g":20,"ab":59,"r":4,"h":16,"doubles":1,"triples":0,"hr":0,"rbi":6,"sb":1,"bb":1,"so":8,"avg":0.271,"obp":0.283,"slg":0.288,"ops":0.571},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"SF","gamesPlayed":40,"values":{"g":40,"ab":139,"r":16,"h":36,"doubles":10,"triples":0,"hr":1,"rbi":29,"sb":6,"bb":9,"so":9,"avg":0.259,"obp":0.318,"slg":0.353,"ops":0.671},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"New York Giants","gamesPlayed":60,"values":{"g":60,"ab":230,"r":47,"h":64,"doubles":8,"triples":4,"hr":4,"rbi":43,"sb":5,"bb":13,"so":13,"avg":0.278,"obp":0.32,"slg":0.4,"ops":0.72},"rowScope":"team"},{"season":1891,"seasonType":"REG","team":"PHI","gamesPlayed":115,"values":{"g":115,"ab":441,"r":62,"h":107,"doubles":20,"triples":4,"hr":0,"rbi":50,"sb":7,"bb":34,"so":35,"avg":0.243,"obp":0.303,"slg":0.306,"ops":0.609},"rowScope":"team"},{"season":1893,"seasonType":"REG","gamesPlayed":118,"gamesStarted":null,"values":{"g":118,"ab":493,"r":85,"h":144,"doubles":26,"triples":7,"hr":1,"rbi":90,"sb":9,"bb":51,"so":35,"avg":0.292,"slg":0.379,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1893,"seasonType":"REG","team":"Baltimore Orioles","gamesPlayed":7,"values":{"g":7,"ab":32,"r":5,"h":4,"doubles":3,"triples":0,"hr":0,"rbi":5,"sb":0,"bb":1,"so":3,"avg":0.125,"obp":0.152,"slg":0.219,"ops":0.371},"rowScope":"team"},{"season":1893,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":111,"values":{"g":111,"ab":461,"r":80,"h":140,"doubles":23,"triples":7,"hr":1,"rbi":85,"sb":9,"bb":50,"so":32,"avg":0.304,"obp":0.373,"slg":0.39,"ops":0.763},"rowScope":"team"},{"season":1894,"seasonType":"REG","gamesPlayed":16,"gamesStarted":null,"values":{"g":16,"ab":57,"r":5,"h":11,"doubles":2,"triples":0,"hr":0,"rbi":9,"sb":1,"bb":5,"so":9,"avg":0.193,"slg":0.228,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1894,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":13,"values":{"g":13,"ab":48,"r":5,"h":10,"doubles":2,"triples":0,"hr":0,"rbi":9,"sb":1,"bb":5,"so":7,"avg":0.208,"obp":0.283,"slg":0.25,"ops":0.533},"rowScope":"team"},{"season":1894,"seasonType":"REG","team":"STL","gamesPlayed":3,"values":{"g":3,"ab":9,"r":0,"h":1,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":2,"avg":0.111,"obp":0.111,"slg":0.111,"ops":0.222},"rowScope":"team"}],"careerTotals":{"REG":{"g":418,"ab":1589,"r":236,"h":415,"doubles":70,"triples":17,"hr":6,"rbi":252,"sb":39,"bb":123,"so":124,"avg":0.261,"obp":0.319,"slg":0.338,"ops":0.657}}},{"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":50,"era_plus":null},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"SF","values":{"ops_plus":90,"era_plus":null},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"SF","values":{"ops_plus":90,"era_plus":null},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"New York Giants","values":{"ops_plus":99,"era_plus":null},"rowScope":"team"},{"season":1891,"seasonType":"REG","team":"PHI","values":{"ops_plus":83,"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":1,"era_plus":null},"rowScope":"team"},{"season":1893,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":109,"era_plus":null},"rowScope":"team"},{"season":1894,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1894,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":33,"era_plus":null},"rowScope":"team"},{"season":1894,"seasonType":"REG","team":"STL","values":{"ops_plus":-45,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":86,"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"}