{"sport":"mlb","slug":"henry-porter","bio":{"fullName":"Henry Porter","position":"P","team":null,"heightInches":0,"weightLbs":142,"birthDate":"1858-06-01","rookieSeason":1884,"lastSeason":1889,"status":"RET","externalIds":{"mlbam":"120679","chadwick":"72d65227","retro":"porth101","wikidata":"Q12957406"}},"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":1884,"seasonType":"REG","team":"Milwaukee Unions","gamesPlayed":11,"values":{"g":11,"ab":40,"r":3,"h":11,"doubles":3,"triples":0,"hr":0,"rbi":null,"sb":null,"bb":0,"so":null,"avg":0.275,"obp":null,"slg":0.35,"ops":null},"rowScope":"team"},{"season":1885,"seasonType":"REG","team":"LAD","gamesPlayed":54,"values":{"g":54,"ab":195,"r":28,"h":40,"doubles":1,"triples":4,"hr":0,"rbi":16,"sb":null,"bb":5,"so":null,"avg":0.205,"obp":0.225,"slg":0.251,"ops":0.476},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"LAD","gamesPlayed":48,"values":{"g":48,"ab":184,"r":20,"h":33,"doubles":4,"triples":0,"hr":0,"rbi":13,"sb":3,"bb":4,"so":null,"avg":0.179,"obp":0.197,"slg":0.201,"ops":0.398},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"LAD","gamesPlayed":40,"values":{"g":40,"ab":146,"r":16,"h":29,"doubles":2,"triples":4,"hr":1,"rbi":12,"sb":6,"bb":10,"so":null,"avg":0.199,"obp":0.25,"slg":0.288,"ops":0.538},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":55,"values":{"g":55,"ab":195,"r":12,"h":28,"doubles":3,"triples":0,"hr":0,"rbi":10,"sb":1,"bb":8,"so":null,"avg":0.144,"obp":0.177,"slg":0.159,"ops":0.336},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":4,"values":{"g":4,"ab":10,"r":0,"h":1,"doubles":0,"triples":0,"hr":0,"rbi":1,"sb":0,"bb":1,"so":3,"avg":0.1,"obp":0.182,"slg":0.1,"ops":0.282},"rowScope":"team"}],"careerTotals":{"REG":{"g":212,"ab":770,"r":79,"h":142,"doubles":13,"triples":8,"hr":1,"rbi":52,"sb":10,"bb":28,"so":3,"avg":0.184,"obp":0.213,"slg":0.226,"ops":0.439}}},{"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":1884,"seasonType":"REG","team":"Milwaukee Unions","gamesPlayed":6,"values":{"g":6,"gs":6,"w":3,"l":3,"sv":0,"ip":51,"so":71,"bb":9,"h":32,"er":17,"hr":1,"era":3,"whip":0.8},"rowScope":"team"},{"season":1885,"seasonType":"REG","team":"LAD","gamesPlayed":54,"values":{"g":54,"gs":54,"w":33,"l":21,"sv":0,"ip":481.2,"so":197,"bb":107,"h":427,"er":149,"hr":11,"era":2.78,"whip":1.11},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"LAD","gamesPlayed":48,"values":{"g":48,"gs":48,"w":27,"l":19,"sv":0,"ip":424,"so":163,"bb":120,"h":439,"er":161,"hr":8,"era":3.42,"whip":1.32},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"LAD","gamesPlayed":40,"values":{"g":40,"gs":40,"w":15,"l":24,"sv":0,"ip":339.2,"so":74,"bb":96,"h":416,"er":159,"hr":7,"era":4.21,"whip":1.51},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":55,"values":{"g":55,"gs":54,"w":18,"l":37,"sv":0,"ip":474,"so":145,"bb":120,"h":527,"er":219,"hr":16,"era":4.16,"whip":1.36},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Kansas City Blues","gamesPlayed":4,"values":{"g":4,"gs":4,"w":0,"l":3,"sv":0,"ip":23,"so":9,"bb":14,"h":52,"er":32,"hr":0,"era":12.52,"whip":2.87},"rowScope":"team"}],"careerTotals":{"REG":{"g":207,"gs":206,"w":96,"l":107,"sv":0,"ip":1793.1,"so":659,"bb":466,"h":1893,"er":737,"hr":43,"era":3.7,"whip":1.32}}},{"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":1884,"seasonType":"REG","team":"Milwaukee Unions","values":{"ops_plus":118,"era_plus":106},"rowScope":"team"},{"season":1885,"seasonType":"REG","team":"LAD","values":{"ops_plus":57,"era_plus":105},"rowScope":"team"},{"season":1886,"seasonType":"REG","team":"LAD","values":{"ops_plus":24,"era_plus":97},"rowScope":"team"},{"season":1887,"seasonType":"REG","team":"LAD","values":{"ops_plus":55,"era_plus":97},"rowScope":"team"},{"season":1888,"seasonType":"REG","team":"Kansas City Blues","values":{"ops_plus":12,"era_plus":75},"rowScope":"team"},{"season":1889,"seasonType":"REG","team":"Kansas City Blues","values":{"ops_plus":-16,"era_plus":30},"rowScope":"team"}],"careerTotals":{"REG":{"ops_plus":39,"era_plus":90}},"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":"2026-07-03T08:11:48.216Z"}