{"sport":"mlb","slug":"john-sullivan-1920","bio":{"fullName":"John Sullivan","position":"OF","team":"CHC","heightInches":71,"weightLbs":180,"birthDate":"1890-03-21","rookieSeason":1920,"lastSeason":1921,"status":"RET","externalIds":{"mlbam":"122954","chadwick":"4eb9867c","retro":"sullj105","wikidata":"Q6259626"}},"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":1920,"seasonType":"REG","team":"ATL","gamesPlayed":81,"values":{"g":81,"ab":250,"r":36,"h":74,"doubles":14,"triples":4,"hr":1,"rbi":28,"sb":3,"bb":29,"so":29,"avg":0.296,"obp":0.374,"slg":0.396,"ops":0.77},"rowScope":"team"},{"season":1921,"seasonType":"REG","gamesPlayed":81,"gamesStarted":null,"values":{"g":81,"ab":245,"r":28,"h":79,"doubles":14,"triples":4,"hr":4,"rbi":41,"sb":3,"bb":19,"so":26,"avg":0.322,"slg":0.461,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1921,"seasonType":"REG","team":"ATL","gamesPlayed":5,"values":{"g":5,"ab":5,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":0,"avg":0,"obp":0,"slg":0,"ops":0},"rowScope":"team"},{"season":1921,"seasonType":"REG","team":"CHC","gamesPlayed":76,"values":{"g":76,"ab":240,"r":28,"h":79,"doubles":14,"triples":4,"hr":4,"rbi":41,"sb":3,"bb":19,"so":26,"avg":0.329,"obp":0.381,"slg":0.471,"ops":0.852},"rowScope":"team"}],"careerTotals":{"REG":{"g":162,"ab":495,"r":64,"h":153,"doubles":28,"triples":8,"hr":5,"rbi":69,"sb":6,"bb":48,"so":55,"avg":0.309,"obp":0.374,"slg":0.428,"ops":0.802}}},{"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":1920,"seasonType":"REG","team":"ATL","values":{"ops_plus":127,"era_plus":null},"rowScope":"team"},{"season":1921,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1921,"seasonType":"REG","team":"ATL","values":{"ops_plus":-100,"era_plus":null},"rowScope":"team"},{"season":1921,"seasonType":"REG","team":"CHC","values":{"ops_plus":132,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":127,"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"}