{"sport":"mlb","slug":"andres-chaparro","bio":{"fullName":"Andrés Chaparro","position":"1B","team":"WSH","heightInches":72,"weightLbs":200,"birthDate":"1999-05-04","rookieSeason":2024,"lastSeason":2026,"status":"ACT","externalIds":{"mlbam":"665953","chadwick":"84c91f94","retro":"chapa002"}},"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":2024,"seasonType":"REG","team":"WSH","rowScope":"team","gamesPlayed":33,"values":{"g":33,"ab":121,"r":12,"h":26,"doubles":12,"triples":0,"hr":4,"rbi":15,"sb":1,"bb":7,"so":24,"avg":0.215,"obp":0.28,"slg":0.413,"ops":0.693}},{"season":2025,"seasonType":"REG","team":"WSH","rowScope":"team","gamesPlayed":34,"values":{"g":34,"ab":66,"r":4,"h":12,"doubles":2,"triples":0,"hr":1,"rbi":5,"sb":0,"bb":5,"so":22,"avg":0.182,"obp":0.247,"slg":0.258,"ops":0.505}},{"season":2026,"seasonType":"REG","team":"WSH","rowScope":"team","gamesPlayed":83,"values":{"g":83,"ab":198,"r":36,"h":52,"doubles":13,"triples":0,"hr":13,"rbi":39,"sb":0,"bb":25,"so":53,"avg":0.263,"obp":0.36,"slg":0.525,"ops":0.885}}],"careerTotals":{"REG":{"g":150,"ab":385,"r":52,"h":90,"doubles":27,"triples":0,"hr":18,"rbi":59,"sb":1,"bb":37,"so":99,"avg":0.234,"obp":0.316,"slg":0.444,"ops":0.76}}},{"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":2024,"seasonType":"REG","team":"WSH","values":{"ops_plus":86,"era_plus":null},"rowScope":"team"},{"season":2025,"seasonType":"REG","team":"WSH","values":{"ops_plus":41,"era_plus":null},"rowScope":"team"},{"season":2026,"seasonType":"REG","team":"WSH","values":{"ops_plus":139,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":105,"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":"2026-10-12T23:02:56.246Z"}