{"sport":"mlb","slug":"myron-allen","bio":{"fullName":"Myron Allen","position":"LF","team":null,"heightInches":68,"weightLbs":150,"birthDate":"1854-03-22","rookieSeason":1883,"lastSeason":1888,"status":"RET","externalIds":{"mlbam":"110155","chadwick":"2836427e","retro":"allem101","wikidata":"Q6948414"}},"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":1883,"seasonType":"REG","team":"SF","gamesPlayed":1,"values":{"g":1,"ab":4,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":null,"bb":0,"so":2,"avg":0,"obp":null,"slg":0,"ops":null},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"ATL","gamesPlayed":1,"values":{"g":1,"ab":3,"r":0,"h":0,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":1,"avg":0,"obp":null,"slg":0,"ops":null},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Cleveland Spiders","gamesPlayed":117,"values":{"g":117,"ab":463,"r":66,"h":128,"doubles":22,"triples":10,"hr":4,"rbi":77,"sb":26,"bb":36,"so":null,"avg":0.276,"obp":0.335,"slg":0.393,"ops":0.728},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":37,"values":{"g":37,"ab":136,"r":23,"h":29,"doubles":6,"triples":4,"hr":0,"rbi":10,"sb":4,"bb":9,"so":null,"avg":0.213,"obp":0.267,"slg":0.316,"ops":0.583},"rowScope":"team"}],"careerTotals":{"REG":{"g":156,"ab":606,"r":89,"h":157,"doubles":28,"triples":14,"hr":4,"rbi":88,"sb":30,"bb":45,"so":3,"avg":0.259,"obp":0.317,"slg":0.371,"ops":0.688}}},{"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":1883,"seasonType":"REG","team":"SF","gamesPlayed":1,"values":{"g":1,"gs":1,"w":0,"l":1,"sv":0,"ip":8,"so":0,"bb":3,"h":8,"er":1,"hr":0,"era":1.13,"whip":1.38},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Cleveland Spiders","gamesPlayed":2,"values":{"g":2,"gs":0,"w":1,"l":0,"sv":0,"ip":9.2,"so":1,"bb":3,"h":9,"er":1,"hr":0,"era":0.93,"whip":1.24},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":2,"values":{"g":2,"gs":2,"w":0,"l":2,"sv":0,"ip":18,"so":2,"bb":1,"h":17,"er":5,"hr":0,"era":2.5,"whip":1},"rowScope":"team"}],"careerTotals":{"REG":{"g":5,"gs":3,"w":1,"l":3,"sv":0,"ip":35.2,"so":3,"bb":7,"h":34,"er":7,"hr":0,"era":1.77,"whip":1.15}}},{"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":1883,"seasonType":"REG","team":"SF","values":{"ops_plus":-100,"era_plus":285},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"ATL","values":{"ops_plus":-100,"era_plus":null},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"Cleveland Spiders","values":{"ops_plus":107,"era_plus":441},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","values":{"ops_plus":92,"era_plus":125},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":102,"era_plus":184}},"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"}