{"sport":"mlb","slug":"wes-chamberlain","bio":{"fullName":"Wes Chamberlain","position":"RF","team":"BOS","heightInches":74,"weightLbs":210,"birthDate":"1966-04-13","rookieSeason":1990,"lastSeason":1995,"status":"RET","externalIds":{"mlbam":"112173","chadwick":"a02fb594","retro":"chamw001","wikidata":"Q7983654"}},"draft":{"year":1987,"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":1990,"seasonType":"REG","team":"PHI","gamesPlayed":18,"values":{"g":18,"ab":46,"r":9,"h":13,"doubles":3,"triples":0,"hr":2,"rbi":4,"sb":4,"bb":1,"so":9,"avg":0.283,"obp":0.298,"slg":0.478,"ops":0.776},"rowScope":"team"},{"season":1991,"seasonType":"REG","team":"PHI","gamesPlayed":101,"values":{"g":101,"ab":383,"r":51,"h":92,"doubles":16,"triples":3,"hr":13,"rbi":50,"sb":9,"bb":31,"so":73,"avg":0.24,"obp":0.3,"slg":0.399,"ops":0.699},"rowScope":"team"},{"season":1992,"seasonType":"REG","team":"PHI","gamesPlayed":76,"values":{"g":76,"ab":275,"r":26,"h":71,"doubles":18,"triples":0,"hr":9,"rbi":41,"sb":4,"bb":10,"so":55,"avg":0.258,"obp":0.285,"slg":0.422,"ops":0.707},"rowScope":"team"},{"season":1993,"seasonType":"REG","team":"PHI","gamesPlayed":96,"values":{"g":96,"ab":284,"r":34,"h":80,"doubles":20,"triples":2,"hr":12,"rbi":45,"sb":2,"bb":17,"so":51,"avg":0.282,"obp":0.32,"slg":0.493,"ops":0.813},"rowScope":"team"},{"season":1993,"seasonType":"POST","team":"PHI","gamesPlayed":6,"values":{"g":6,"ab":13,"r":1,"h":4,"doubles":3,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":1,"so":4,"avg":0.308,"obp":0.333,"slg":0.538,"ops":0.871},"rowScope":"team"},{"season":1994,"seasonType":"REG","gamesPlayed":75,"gamesStarted":null,"values":{"g":75,"ab":233,"r":20,"h":61,"doubles":14,"triples":1,"hr":6,"rbi":26,"sb":0,"bb":15,"so":50,"avg":0.262,"slg":0.408,"obp":null,"ops":null},"team":"TOT","rowScope":"total"},{"season":1994,"seasonType":"REG","team":"BOS","gamesPlayed":51,"values":{"g":51,"ab":164,"r":13,"h":42,"doubles":9,"triples":1,"hr":4,"rbi":20,"sb":0,"bb":12,"so":38,"avg":0.256,"obp":0.307,"slg":0.396,"ops":0.703},"rowScope":"team"},{"season":1994,"seasonType":"REG","team":"PHI","gamesPlayed":24,"values":{"g":24,"ab":69,"r":7,"h":19,"doubles":5,"triples":0,"hr":2,"rbi":6,"sb":0,"bb":3,"so":12,"avg":0.275,"obp":0.306,"slg":0.435,"ops":0.741},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"BOS","gamesPlayed":19,"values":{"g":19,"ab":42,"r":4,"h":5,"doubles":1,"triples":0,"hr":1,"rbi":1,"sb":1,"bb":3,"so":11,"avg":0.119,"obp":0.178,"slg":0.214,"ops":0.392},"rowScope":"team"}],"careerTotals":{"REG":{"g":385,"ab":1263,"r":144,"h":322,"doubles":72,"triples":6,"hr":43,"rbi":167,"sb":20,"bb":77,"so":249,"avg":0.255,"obp":0.299,"slg":0.424,"ops":0.723},"POST":{"g":6,"ab":13,"r":1,"h":4,"doubles":3,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":1,"so":4,"avg":0.308,"obp":0.333,"slg":0.538,"ops":0.871}}},{"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":1990,"seasonType":"REG","team":"PHI","values":{"ops_plus":117,"era_plus":null},"rowScope":"team"},{"season":1991,"seasonType":"REG","team":"PHI","values":{"ops_plus":100,"era_plus":null},"rowScope":"team"},{"season":1992,"seasonType":"REG","team":"PHI","values":{"ops_plus":105,"era_plus":null},"rowScope":"team"},{"season":1993,"seasonType":"REG","team":"PHI","values":{"ops_plus":124,"era_plus":null},"rowScope":"team"},{"season":1994,"seasonType":"REG","gamesPlayed":null,"gamesStarted":null,"values":{"ops_plus":null,"era_plus":null},"team":"TOT","rowScope":"total"},{"season":1994,"seasonType":"REG","team":"BOS","values":{"ops_plus":80,"era_plus":null},"rowScope":"team"},{"season":1994,"seasonType":"REG","team":"PHI","values":{"ops_plus":99,"era_plus":null},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"BOS","values":{"ops_plus":3,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":101,"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":"2026-07-03T02:37:06.742Z"}