{"sport":"mlb","slug":"joe-hall","bio":{"fullName":"Joe Hall","position":"LF","team":"DET","heightInches":72,"weightLbs":180,"birthDate":"1966-03-06","rookieSeason":1994,"lastSeason":1997,"status":"RET","externalIds":{"mlbam":"115346","chadwick":"e1a3f2db","retro":"hallj001","wikidata":"Q16196496"}},"draft":{"year":1988,"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":1994,"seasonType":"REG","team":"CWS","gamesPlayed":17,"values":{"g":17,"ab":28,"r":6,"h":11,"doubles":3,"triples":0,"hr":1,"rbi":5,"sb":0,"bb":2,"so":4,"avg":0.393,"obp":0.452,"slg":0.607,"ops":1.059},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"DET","gamesPlayed":7,"values":{"g":7,"ab":15,"r":2,"h":2,"doubles":0,"triples":0,"hr":0,"rbi":0,"sb":0,"bb":2,"so":3,"avg":0.133,"obp":0.235,"slg":0.133,"ops":0.368},"rowScope":"team"},{"season":1997,"seasonType":"REG","team":"DET","gamesPlayed":2,"values":{"g":2,"ab":4,"r":1,"h":2,"doubles":1,"triples":0,"hr":0,"rbi":3,"sb":0,"bb":0,"so":0,"avg":0.5,"obp":0.5,"slg":0.75,"ops":1.25},"rowScope":"team"}],"careerTotals":{"REG":{"g":26,"ab":47,"r":9,"h":15,"doubles":4,"triples":0,"hr":1,"rbi":8,"sb":0,"bb":4,"so":7,"avg":0.319,"obp":0.385,"slg":0.468,"ops":0.853}}},{"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":1994,"seasonType":"REG","team":"CWS","values":{"ops_plus":165,"era_plus":null},"rowScope":"team"},{"season":1995,"seasonType":"REG","team":"DET","values":{"ops_plus":0,"era_plus":null},"rowScope":"team"},{"season":1997,"seasonType":"REG","team":"DET","values":{"ops_plus":224,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":118,"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":"2026-07-03T02:26:44.323Z"}