{"sport":"mlb","slug":"reddy-mack","bio":{"fullName":"Reddy Mack","position":"2B","team":null,"heightInches":68,"weightLbs":182,"birthDate":"1866-05-02","rookieSeason":1885,"lastSeason":1890,"status":"RET","externalIds":{"mlbam":"118087","chadwick":"493d3351","retro":"mackr102","wikidata":"Q7305668"}},"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":1885,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":11,"values":{"g":11,"ab":41,"r":7,"h":10,"doubles":1,"triples":0,"hr":0,"rbi":5,"sb":null,"bb":2,"so":null,"avg":0.244,"obp":0.295,"slg":0.268,"ops":0.563},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":137,"values":{"g":137,"ab":483,"r":82,"h":118,"doubles":23,"triples":11,"hr":1,"rbi":56,"sb":13,"bb":68,"so":null,"avg":0.244,"obp":0.342,"slg":0.344,"ops":0.686},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":128,"values":{"g":128,"ab":478,"r":117,"h":147,"doubles":23,"triples":8,"hr":1,"rbi":69,"sb":22,"bb":83,"so":null,"avg":0.308,"obp":0.415,"slg":0.395,"ops":0.81},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Louisville Colonels","gamesPlayed":112,"values":{"g":112,"ab":446,"r":77,"h":97,"doubles":13,"triples":5,"hr":3,"rbi":34,"sb":18,"bb":52,"so":null,"avg":0.217,"obp":0.32,"slg":0.289,"ops":0.609},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Baltimore Orioles","gamesPlayed":136,"values":{"g":136,"ab":519,"r":84,"h":125,"doubles":24,"triples":7,"hr":1,"rbi":87,"sb":23,"bb":60,"so":69,"avg":0.241,"obp":0.329,"slg":0.32,"ops":0.649},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"Baltimore Orioles","gamesPlayed":26,"values":{"g":26,"ab":95,"r":14,"h":27,"doubles":3,"triples":5,"hr":0,"rbi":11,"sb":7,"bb":10,"so":null,"avg":0.284,"obp":0.37,"slg":0.421,"ops":0.791},"rowScope":"team"}],"careerTotals":{"REG":{"g":550,"ab":2062,"r":381,"h":524,"doubles":87,"triples":36,"hr":6,"rbi":262,"sb":83,"bb":275,"so":69,"avg":0.254,"obp":0.352,"slg":0.34,"ops":0.692}}},{"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":1885,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":81,"era_plus":null},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":112,"era_plus":null},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":133,"era_plus":null},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Louisville Colonels","values":{"ops_plus":96,"era_plus":null},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Baltimore Orioles","values":{"ops_plus":88,"era_plus":null},"rowScope":"team"},{"season":1890,"seasonType":"REG","team":"Baltimore Orioles","values":{"ops_plus":132,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":108,"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":"2026-07-03T08:11:48.216Z"}