{"sport":"mlb","slug":"art-griggs","bio":{"fullName":"Art Griggs","position":"1B","team":"DET","heightInches":71,"weightLbs":185,"birthDate":"1884-12-10","rookieSeason":1909,"lastSeason":1918,"status":"RET","externalIds":{"mlbam":"115154","chadwick":"22b3a8b5","retro":"griga101","wikidata":"Q4796857"}},"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":1909,"seasonType":"REG","team":"BAL","gamesPlayed":108,"values":{"g":108,"ab":364,"r":38,"h":102,"doubles":17,"triples":5,"hr":0,"rbi":43,"sb":11,"bb":24,"so":null,"avg":0.28,"obp":0.33,"slg":0.354,"ops":0.684},"rowScope":"team"},{"season":1910,"seasonType":"REG","team":"BAL","gamesPlayed":123,"values":{"g":123,"ab":416,"r":28,"h":98,"doubles":22,"triples":5,"hr":2,"rbi":30,"sb":11,"bb":25,"so":null,"avg":0.236,"obp":0.281,"slg":0.327,"ops":0.608},"rowScope":"team"},{"season":1911,"seasonType":"REG","team":"CLE","gamesPlayed":28,"values":{"g":28,"ab":68,"r":7,"h":17,"doubles":3,"triples":2,"hr":1,"rbi":7,"sb":1,"bb":5,"so":null,"avg":0.25,"obp":0.301,"slg":0.397,"ops":0.698},"rowScope":"team"},{"season":1912,"seasonType":"REG","team":"CLE","gamesPlayed":89,"values":{"g":89,"ab":273,"r":29,"h":83,"doubles":16,"triples":7,"hr":0,"rbi":39,"sb":10,"bb":33,"so":null,"avg":0.304,"obp":0.381,"slg":0.414,"ops":0.795},"rowScope":"team"},{"season":1914,"seasonType":"REG","team":"Brooklyn Feds","gamesPlayed":40,"values":{"g":40,"ab":112,"r":10,"h":32,"doubles":6,"triples":1,"hr":1,"rbi":15,"sb":1,"bb":5,"so":11,"avg":0.286,"obp":0.328,"slg":0.384,"ops":0.712},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Brooklyn Feds","gamesPlayed":27,"values":{"g":27,"ab":38,"r":4,"h":11,"doubles":1,"triples":0,"hr":1,"rbi":2,"sb":0,"bb":3,"so":7,"avg":0.289,"obp":0.372,"slg":0.395,"ops":0.767},"rowScope":"team"},{"season":1918,"seasonType":"REG","team":"DET","gamesPlayed":28,"values":{"g":28,"ab":99,"r":11,"h":36,"doubles":8,"triples":0,"hr":0,"rbi":16,"sb":2,"bb":10,"so":5,"avg":0.364,"obp":0.422,"slg":0.444,"ops":0.866},"rowScope":"team"}],"careerTotals":{"REG":{"g":443,"ab":1370,"r":127,"h":379,"doubles":73,"triples":20,"hr":5,"rbi":152,"sb":36,"bb":105,"so":23,"avg":0.277,"obp":0.332,"slg":0.37,"ops":0.702}}},{"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":1909,"seasonType":"REG","team":"BAL","values":{"ops_plus":125,"era_plus":null},"rowScope":"team"},{"season":1910,"seasonType":"REG","team":"BAL","values":{"ops_plus":97,"era_plus":null},"rowScope":"team"},{"season":1911,"seasonType":"REG","team":"CLE","values":{"ops_plus":102,"era_plus":null},"rowScope":"team"},{"season":1912,"seasonType":"REG","team":"CLE","values":{"ops_plus":135,"era_plus":null},"rowScope":"team"},{"season":1914,"seasonType":"REG","team":"Brooklyn Feds","values":{"ops_plus":106,"era_plus":null},"rowScope":"team"},{"season":1915,"seasonType":"REG","team":"Brooklyn Feds","values":{"ops_plus":124,"era_plus":null},"rowScope":"team"},{"season":1918,"seasonType":"REG","team":"DET","values":{"ops_plus":170,"era_plus":null},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":119,"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":"2026-07-03T07:40:28.886Z"}