{"sport":"mlb","slug":"billy-harris","bio":{"fullName":"Billy Harris","position":"2B","team":"KC","heightInches":72,"weightLbs":175,"birthDate":"1943-11-24","rookieSeason":1968,"lastSeason":1969,"status":"RET","externalIds":{"mlbam":"115525","chadwick":"1c551754","retro":"harrb108","wikidata":"Q4912675"}},"draft":{"year":1966,"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":1968,"seasonType":"REG","team":"CLE","gamesPlayed":38,"values":{"g":38,"ab":94,"r":10,"h":20,"doubles":5,"triples":1,"hr":0,"rbi":3,"sb":2,"bb":8,"so":22,"avg":0.213,"obp":0.275,"slg":0.287,"ops":0.562},"rowScope":"team"},{"season":1969,"seasonType":"REG","team":"KC","gamesPlayed":5,"values":{"g":5,"ab":7,"r":1,"h":2,"doubles":1,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":0,"so":1,"avg":0.286,"obp":0.286,"slg":0.429,"ops":0.715},"rowScope":"team"}],"careerTotals":{"REG":{"g":43,"ab":101,"r":11,"h":22,"doubles":6,"triples":1,"hr":0,"rbi":3,"sb":2,"bb":8,"so":23,"avg":0.218,"obp":0.275,"slg":0.297,"ops":0.572}}},{"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":1968,"seasonType":"REG","team":"CLE","values":{"ops_plus":82,"era_plus":null},"rowScope":"team"},{"season":1969,"seasonType":"REG","team":"KC","values":{"ops_plus":104,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":84,"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":"2026-07-03T03:10:36.276Z"}