# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/jack-chesbro
# Generated: 2026-08-13T20:53:29.308Z

schema: https://schema.org/Person
url: "https://fame.am/person/jack-chesbro"
name: "Jack Chesbro"
slug: "jack-chesbro"
description: "John Dwight Chesbro was an American professional baseball pitcher. Nicknamed \"Happy Jack\", Chesbro played for the Pittsburgh Pirates (1899–1902), the New York Highlanders (1903–1909), and the Boston Red Sox (1909) of Major League Baseball (MLB). Chesbro finished his career with a 198–132 win–loss record, a 2.68 earned run average, and 1,265 strikeouts. His 41 wins during the 1904 season remains an American League record. Though some pitchers have won more games in some seasons prior to 1901, historians demarcating 1901 as the beginning of 'modern-era' major league baseball refer to and credit Jack Chesbro and his 1904 win-total as the modern era major league record and its holder. Some view Chesbro's 41 wins in a season as an unbreakable record."
tagline: "Major League Baseball pitcher (1874-1931)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/ChesbroJack.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
birthDate: "1874-06-05"
deathDate: "1931-11-06"
livingStatus: "DECEASED"
scores:
  popularity:           48.92
  momentum:             16.67790262172285
  historical:           7.456124000000001
  currentAttention:     0
  sourceConfidence:     45
  profileCompleteness:  50
  trendDirection:       "BREAKOUT"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://zh.wikipedia.org/wiki/%E5%82%91%E5%85%8B%C2%B7%E5%88%87%E6%96%AF%E4%BC%AF"
    title: "傑克·切斯伯"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%DA%86%D8%A7%D9%83_%D8%AA%D8%B4%D9%8A%D8%B3%D8%A8%D8%B1%D9%88"
    title: "چاك تشيسبرو"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Jack_Chesbro"
    title: "Jack Chesbro"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Jack_Chesbro"
    title: "Jack Chesbro"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Jack_Chesbro"
    title: "Jack Chesbro"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Jack_Chesbro"
    title: "Jack Chesbro"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A3%E3%83%83%E3%82%AF%E3%83%BB%E3%83%81%E3%82%A7%E3%82%B9%E3%83%96%E3%83%AD"
    title: "ジャック・チェスブロ"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EC%9E%AD_%EC%B2%B4%EC%8A%A4%EB%B8%8C%EB%A1%9C"
    title: "잭 체스브로"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q254553"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump