{"sport":"mlb","slug":"chris-bosio","bio":{"fullName":"Chris Bosio","position":"P","team":"SEA","heightInches":75,"weightLbs":225,"birthDate":"1963-04-03","rookieSeason":1986,"lastSeason":1996,"status":"RET","externalIds":{"mlbam":"111249","chadwick":"10df1252","retro":"bosic001","wikidata":"Q5105939"}},"draft":{"year":1981,"round":null,"pick":null,"team":null,"undrafted":false},"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":1993,"seasonType":"REG","team":"SEA","gamesPlayed":30,"values":{"g":30,"ab":0,"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"}],"careerTotals":{"REG":{"g":98,"ab":0,"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}}},{"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":1986,"seasonType":"REG","team":"MIL","gamesPlayed":10,"values":{"g":10,"gs":4,"w":0,"l":4,"sv":0,"ip":34.2,"so":29,"bb":13,"h":41,"er":27,"hr":9,"era":7.01,"whip":1.56},"rowScope":"team"},{"season":1987,"seasonType":"REG","team":"MIL","gamesPlayed":46,"values":{"g":46,"gs":19,"w":11,"l":8,"sv":2,"ip":170,"so":150,"bb":51,"h":187,"er":100,"hr":18,"era":5.29,"whip":1.4},"rowScope":"team"},{"season":1988,"seasonType":"REG","team":"MIL","gamesPlayed":38,"values":{"g":38,"gs":22,"w":7,"l":15,"sv":6,"ip":182,"so":84,"bb":38,"h":190,"er":68,"hr":13,"era":3.36,"whip":1.25},"rowScope":"team"},{"season":1989,"seasonType":"REG","team":"MIL","gamesPlayed":33,"values":{"g":33,"gs":33,"w":15,"l":10,"sv":0,"ip":234.2,"so":173,"bb":48,"h":225,"er":77,"hr":16,"era":2.95,"whip":1.16},"rowScope":"team"},{"season":1990,"seasonType":"REG","team":"MIL","gamesPlayed":20,"values":{"g":20,"gs":20,"w":4,"l":9,"sv":0,"ip":132.2,"so":76,"bb":38,"h":131,"er":59,"hr":15,"era":4,"whip":1.27},"rowScope":"team"},{"season":1991,"seasonType":"REG","team":"MIL","gamesPlayed":32,"values":{"g":32,"gs":32,"w":14,"l":10,"sv":0,"ip":204.2,"so":117,"bb":58,"h":187,"er":74,"hr":15,"era":3.25,"whip":1.2},"rowScope":"team"},{"season":1992,"seasonType":"REG","team":"MIL","gamesPlayed":33,"values":{"g":33,"gs":33,"w":16,"l":6,"sv":0,"ip":231.1,"so":120,"bb":44,"h":223,"er":93,"hr":21,"era":3.62,"whip":1.15},"rowScope":"team"},{"season":1993,"seasonType":"REG","team":"SEA","gamesPlayed":29,"values":{"g":29,"gs":24,"w":9,"l":9,"sv":1,"ip":164.1,"so":119,"bb":59,"h":138,"er":63,"hr":14,"era":3.45,"whip":1.2},"rowScope":"team"},{"season":1994,"seasonType":"REG","team":"SEA","gamesPlayed":19,"values":{"g":19,"gs":19,"w":4,"l":10,"sv":0,"ip":125,"so":67,"bb":40,"h":137,"er":60,"hr":15,"era":4.32,"whip":1.42},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"SEA","gamesPlayed":31,"values":{"g":31,"gs":31,"w":10,"l":8,"sv":0,"ip":170,"so":85,"bb":69,"h":211,"er":93,"hr":18,"era":4.92,"whip":1.65},"rowScope":"team"},{"season":1995,"seasonType":"POST","team":"SEA","gamesPlayed":3,"values":{"g":3,"gs":3,"w":0,"l":1,"sv":0,"ip":13,"so":5,"bb":6,"h":17,"er":11,"hr":3,"era":7.62,"whip":1.77},"rowScope":"team"},{"season":1996,"seasonType":"REG","team":"SEA","gamesPlayed":18,"values":{"g":18,"gs":9,"w":4,"l":4,"sv":0,"ip":60.2,"so":39,"bb":24,"h":72,"er":40,"hr":8,"era":5.93,"whip":1.58},"rowScope":"team"}],"careerTotals":{"REG":{"g":309,"gs":246,"w":94,"l":93,"sv":9,"ip":1710,"so":1059,"bb":482,"h":1742,"er":754,"hr":162,"era":3.97,"whip":1.3},"POST":{"g":3,"gs":3,"w":0,"l":1,"sv":0,"ip":13,"so":5,"bb":6,"h":17,"er":11,"hr":3,"era":7.62,"whip":1.77}}},{"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":1986,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":54},"rowScope":"team"},{"season":1987,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":78},"rowScope":"team"},{"season":1988,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":101},"rowScope":"team"},{"season":1989,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":119},"rowScope":"team"},{"season":1990,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":94},"rowScope":"team"},{"season":1991,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":114},"rowScope":"team"},{"season":1992,"seasonType":"REG","team":"MIL","values":{"ops_plus":null,"era_plus":97},"rowScope":"team"},{"season":1993,"seasonType":"REG","team":"SEA","values":{"ops_plus":null,"era_plus":121},"rowScope":"team"},{"season":1994,"seasonType":"REG","team":"SEA","values":{"ops_plus":null,"era_plus":111},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"SEA","values":{"ops_plus":null,"era_plus":96},"rowScope":"team"},{"season":1996,"seasonType":"REG","team":"SEA","values":{"ops_plus":null,"era_plus":84},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":null,"era_plus":100}},"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":"2026-07-03T02:26:44.323Z"}