{"sport":"mlb","slug":"james-casey","bio":{"fullName":"James Casey","position":"3B","team":"LAD","heightInches":66,"weightLbs":157,"birthDate":"1870-03-15","rookieSeason":1898,"lastSeason":1907,"status":"RET","externalIds":{"mlbam":"112084","chadwick":"a68f5ef5","retro":"cased101","wikidata":"Q5287027"}},"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":1898,"seasonType":"REG","team":"Washington Senators","gamesPlayed":28,"values":{"g":28,"ab":112,"r":13,"h":31,"doubles":2,"triples":0,"hr":0,"rbi":15,"sb":15,"bb":3,"so":null,"avg":0.277,"obp":0.302,"slg":0.295,"ops":0.597},"rowScope":"team"},{"season":1899,"seasonType":"REG","gamesPlayed":143,"gamesStarted":null,"values":{"g":143,"ab":559,"r":78,"h":145,"doubles":16,"triples":8,"hr":1,"rbi":45,"sb":28,"bb":27,"so":null,"avg":0.259,"slg":0.322,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1899,"seasonType":"REG","team":"LAD","gamesPlayed":134,"values":{"g":134,"ab":525,"r":75,"h":141,"doubles":14,"triples":8,"hr":1,"rbi":43,"sb":27,"bb":25,"so":null,"avg":0.269,"obp":0.313,"slg":0.331,"ops":0.644},"rowScope":"team"},{"season":1899,"seasonType":"REG","team":"Washington Senators","gamesPlayed":9,"values":{"g":9,"ab":34,"r":3,"h":4,"doubles":2,"triples":0,"hr":0,"rbi":2,"sb":1,"bb":2,"so":null,"avg":0.118,"obp":0.167,"slg":0.176,"ops":0.343},"rowScope":"team"},{"season":1900,"seasonType":"REG","team":"LAD","gamesPlayed":1,"values":{"g":1,"ab":3,"r":0,"h":1,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":0,"so":null,"avg":0.333,"obp":0.5,"slg":0.333,"ops":0.833},"rowScope":"team"},{"season":1901,"seasonType":"REG","team":"DET","gamesPlayed":128,"values":{"g":128,"ab":540,"r":105,"h":153,"doubles":16,"triples":9,"hr":2,"rbi":46,"sb":34,"bb":32,"so":null,"avg":0.283,"obp":0.335,"slg":0.357,"ops":0.692},"rowScope":"team"},{"season":1902,"seasonType":"REG","team":"DET","gamesPlayed":132,"values":{"g":132,"ab":520,"r":69,"h":142,"doubles":18,"triples":7,"hr":3,"rbi":55,"sb":22,"bb":44,"so":null,"avg":0.273,"obp":0.338,"slg":0.352,"ops":0.69},"rowScope":"team"},{"season":1903,"seasonType":"REG","team":"CHC","gamesPlayed":112,"values":{"g":112,"ab":435,"r":56,"h":126,"doubles":8,"triples":3,"hr":1,"rbi":40,"sb":11,"bb":19,"so":null,"avg":0.29,"obp":0.324,"slg":0.329,"ops":0.653},"rowScope":"team"},{"season":1904,"seasonType":"REG","team":"CHC","gamesPlayed":136,"values":{"g":136,"ab":548,"r":71,"h":147,"doubles":20,"triples":4,"hr":1,"rbi":43,"sb":21,"bb":18,"so":null,"avg":0.268,"obp":0.3,"slg":0.325,"ops":0.625},"rowScope":"team"},{"season":1905,"seasonType":"REG","team":"CHC","gamesPlayed":144,"values":{"g":144,"ab":526,"r":66,"h":122,"doubles":21,"triples":10,"hr":1,"rbi":56,"sb":22,"bb":41,"so":null,"avg":0.232,"obp":0.295,"slg":0.316,"ops":0.611},"rowScope":"team"},{"season":1906,"seasonType":"REG","team":"LAD","gamesPlayed":149,"values":{"g":149,"ab":571,"r":71,"h":133,"doubles":17,"triples":8,"hr":0,"rbi":34,"sb":22,"bb":52,"so":null,"avg":0.233,"obp":0.306,"slg":0.291,"ops":0.597},"rowScope":"team"},{"season":1907,"seasonType":"REG","team":"LAD","gamesPlayed":141,"values":{"g":141,"ab":527,"r":55,"h":122,"doubles":19,"triples":3,"hr":0,"rbi":19,"sb":16,"bb":34,"so":null,"avg":0.231,"obp":0.282,"slg":0.279,"ops":0.561},"rowScope":"team"}],"careerTotals":{"REG":{"g":1114,"ab":4341,"r":584,"h":1122,"doubles":137,"triples":52,"hr":9,"rbi":354,"sb":191,"bb":270,"so":null,"avg":0.258,"obp":0.31,"slg":0.32,"ops":0.63}}},{"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":1898,"seasonType":"REG","team":"Washington Senators","values":{"ops_plus":76,"era_plus":null},"rowScope":"team"},{"season":1899,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1899,"seasonType":"REG","team":"LAD","values":{"ops_plus":81,"era_plus":null},"rowScope":"team"},{"season":1899,"seasonType":"REG","team":"Washington Senators","values":{"ops_plus":-2,"era_plus":null},"rowScope":"team"},{"season":1900,"seasonType":"REG","team":"LAD","values":{"ops_plus":92,"era_plus":null},"rowScope":"team"},{"season":1901,"seasonType":"REG","team":"DET","values":{"ops_plus":96,"era_plus":null},"rowScope":"team"},{"season":1902,"seasonType":"REG","team":"DET","values":{"ops_plus":97,"era_plus":null},"rowScope":"team"},{"season":1903,"seasonType":"REG","team":"CHC","values":{"ops_plus":93,"era_plus":null},"rowScope":"team"},{"season":1904,"seasonType":"REG","team":"CHC","values":{"ops_plus":98,"era_plus":null},"rowScope":"team"},{"season":1905,"seasonType":"REG","team":"CHC","values":{"ops_plus":88,"era_plus":null},"rowScope":"team"},{"season":1906,"seasonType":"REG","team":"LAD","values":{"ops_plus":91,"era_plus":null},"rowScope":"team"},{"season":1907,"seasonType":"REG","team":"LAD","values":{"ops_plus":83,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":90,"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":"2026-07-03T07:50:50.720Z"}