{"sport":"mlb","slug":"george-perring","bio":{"fullName":"George Perring","position":"3B","team":null,"heightInches":72,"weightLbs":190,"birthDate":"1884-08-13","rookieSeason":1908,"lastSeason":1915,"status":"RET","externalIds":{"mlbam":"120434","chadwick":"febe2db2","retro":"perrg102","wikidata":"Q5543343"}},"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":1908,"seasonType":"REG","team":"CLE","gamesPlayed":91,"values":{"g":91,"ab":310,"r":23,"h":67,"doubles":8,"triples":5,"hr":0,"rbi":19,"sb":8,"bb":16,"so":null,"avg":0.216,"obp":0.255,"slg":0.274,"ops":0.529},"rowScope":"team"},{"season":1909,"seasonType":"REG","team":"CLE","gamesPlayed":88,"values":{"g":88,"ab":283,"r":26,"h":63,"doubles":10,"triples":9,"hr":0,"rbi":20,"sb":6,"bb":19,"so":null,"avg":0.223,"obp":0.283,"slg":0.322,"ops":0.605},"rowScope":"team"},{"season":1910,"seasonType":"REG","team":"CLE","gamesPlayed":39,"values":{"g":39,"ab":122,"r":14,"h":27,"doubles":6,"triples":3,"hr":0,"rbi":8,"sb":3,"bb":3,"so":null,"avg":0.221,"obp":0.24,"slg":0.32,"ops":0.56},"rowScope":"team"},{"season":1914,"seasonType":"REG","team":"Kansas City Packers","gamesPlayed":144,"values":{"g":144,"ab":496,"r":68,"h":138,"doubles":28,"triples":10,"hr":2,"rbi":69,"sb":7,"bb":59,"so":39,"avg":0.278,"obp":0.355,"slg":0.387,"ops":0.742},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Kansas City Packers","gamesPlayed":153,"values":{"g":153,"ab":553,"r":67,"h":143,"doubles":23,"triples":7,"hr":7,"rbi":67,"sb":10,"bb":55,"so":30,"avg":0.259,"obp":0.327,"slg":0.363,"ops":0.69},"rowScope":"team"}],"careerTotals":{"REG":{"g":515,"ab":1764,"r":198,"h":438,"doubles":75,"triples":34,"hr":9,"rbi":183,"sb":34,"bb":152,"so":69,"avg":0.248,"obp":0.31,"slg":0.345,"ops":0.655}}},{"id":"pitching","label":"Pitching","columns":[{"key":"g"},{"key":"gs"},{"key":"w"},{"key":"l"},{"key":"sv"},{"key":"ip"},{"key":"so"},{"key":"bb"},{"key":"h"},{"key":"er"},{"key":"hr"},{"key":"era"},{"key":"whip"}],"rows":[{"season":1914,"seasonType":"REG","team":"Kansas City Packers","gamesPlayed":1,"values":{"g":1,"gs":0,"w":0,"l":0,"sv":0,"ip":0.2,"so":0,"bb":1,"h":2,"er":1,"hr":0,"era":13.5,"whip":4.5},"rowScope":"team"}],"careerTotals":{"REG":{"g":1,"gs":0,"w":0,"l":0,"sv":0,"ip":0.2,"so":0,"bb":1,"h":2,"er":1,"hr":0,"era":13.5,"whip":4.5}}},{"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":1908,"seasonType":"REG","team":"CLE","values":{"ops_plus":79,"era_plus":null},"rowScope":"team"},{"season":1909,"seasonType":"REG","team":"CLE","values":{"ops_plus":96,"era_plus":null},"rowScope":"team"},{"season":1910,"seasonType":"REG","team":"CLE","values":{"ops_plus":82,"era_plus":null},"rowScope":"team"},{"season":1914,"seasonType":"REG","team":"Kansas City Packers","values":{"ops_plus":119,"era_plus":24},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Kansas City Packers","values":{"ops_plus":110,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":103,"era_plus":24}},"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"}