{"sport":"mlb","slug":"heliodoro-diaz","bio":{"fullName":"Heliodoro Diaz","position":"X","team":null,"heightInches":65,"weightLbs":null,"birthDate":"1905-06-05","rookieSeason":1926,"lastSeason":1935,"status":"RET","externalIds":{"mlbam":"819772","chadwick":"e894735a","retro":"diazh101","wikidata":"Q8059424"}},"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":1926,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":27,"values":{"g":27,"ab":53,"r":4,"h":7,"doubles":1,"triples":0,"hr":0,"rbi":4,"sb":0,"bb":6,"so":null,"avg":0.132,"obp":0.22,"slg":0.151,"ops":0.371},"rowScope":"team"},{"season":1927,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":20,"values":{"g":20,"ab":51,"r":3,"h":7,"doubles":1,"triples":0,"hr":0,"rbi":2,"sb":0,"bb":4,"so":null,"avg":0.137,"obp":0.2,"slg":0.157,"ops":0.357},"rowScope":"team"},{"season":1928,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":20,"values":{"g":20,"ab":56,"r":1,"h":11,"doubles":0,"triples":0,"hr":0,"rbi":3,"sb":0,"bb":3,"so":null,"avg":0.196,"obp":0.237,"slg":0.196,"ops":0.433},"rowScope":"team"},{"season":1929,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":17,"values":{"g":17,"ab":45,"r":5,"h":16,"doubles":4,"triples":0,"hr":2,"rbi":8,"sb":0,"bb":6,"so":null,"avg":0.356,"obp":0.431,"slg":0.578,"ops":1.009},"rowScope":"team"},{"season":1930,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":25,"values":{"g":25,"ab":52,"r":7,"h":12,"doubles":2,"triples":0,"hr":1,"rbi":10,"sb":1,"bb":6,"so":null,"avg":0.231,"obp":0.31,"slg":0.327,"ops":0.637},"rowScope":"team"},{"season":1935,"seasonType":"REG","team":"New York Cubans","gamesPlayed":11,"values":{"g":11,"ab":29,"r":2,"h":8,"doubles":1,"triples":0,"hr":0,"rbi":2,"sb":0,"bb":1,"so":null,"avg":0.276,"obp":0.3,"slg":0.31,"ops":0.61},"rowScope":"team"}],"careerTotals":{"REG":{"g":120,"ab":286,"r":22,"h":61,"doubles":9,"triples":0,"hr":3,"rbi":29,"sb":1,"bb":26,"so":null,"avg":0.213,"obp":0.279,"slg":0.276,"ops":0.555}}},{"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":1926,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":27,"values":{"g":27,"gs":17,"w":6,"l":11,"sv":1,"ip":156,"so":81,"bb":63,"h":184,"er":99,"hr":13,"era":5.71,"whip":1.58},"rowScope":"team"},{"season":1927,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":20,"values":{"g":20,"gs":16,"w":5,"l":11,"sv":0,"ip":135.2,"so":80,"bb":50,"h":141,"er":64,"hr":7,"era":4.25,"whip":1.41},"rowScope":"team"},{"season":1928,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":19,"values":{"g":19,"gs":14,"w":3,"l":14,"sv":1,"ip":140.1,"so":99,"bb":56,"h":139,"er":67,"hr":3,"era":4.3,"whip":1.39},"rowScope":"team"},{"season":1929,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":17,"values":{"g":17,"gs":13,"w":6,"l":8,"sv":0,"ip":122,"so":101,"bb":44,"h":109,"er":54,"hr":3,"era":3.98,"whip":1.25},"rowScope":"team"},{"season":1930,"seasonType":"REG","team":"Cuban Stars West","gamesPlayed":20,"values":{"g":20,"gs":12,"w":8,"l":5,"sv":1,"ip":114,"so":65,"bb":42,"h":109,"er":41,"hr":5,"era":3.24,"whip":1.32},"rowScope":"team"},{"season":1935,"seasonType":"REG","team":"New York Cubans","gamesPlayed":2,"values":{"g":2,"gs":1,"w":0,"l":1,"sv":0,"ip":11,"so":6,"bb":7,"h":11,"er":3,"hr":0,"era":2.45,"whip":1.64},"rowScope":"team"}],"careerTotals":{"REG":{"g":105,"gs":73,"w":28,"l":50,"sv":3,"ip":679,"so":432,"bb":262,"h":693,"er":328,"hr":31,"era":4.35,"whip":1.41}}},{"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":1926,"seasonType":"REG","team":"Cuban Stars West","values":{"ops_plus":2,"era_plus":87},"rowScope":"team"},{"season":1927,"seasonType":"REG","team":"Cuban Stars West","values":{"ops_plus":-1,"era_plus":105},"rowScope":"team"},{"season":1928,"seasonType":"REG","team":"Cuban Stars West","values":{"ops_plus":20,"era_plus":111},"rowScope":"team"},{"season":1929,"seasonType":"REG","team":"Cuban Stars West","values":{"ops_plus":160,"era_plus":105},"rowScope":"team"},{"season":1930,"seasonType":"REG","team":"Cuban Stars West","values":{"ops_plus":61,"era_plus":140},"rowScope":"team"},{"season":1935,"seasonType":"REG","team":"New York Cubans","values":{"ops_plus":60,"era_plus":210},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":48,"era_plus":106}},"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":"2026-07-03T07:19:43.364Z"}