Ken Jennings first appeared as a contestant on Jeopardy! on June 2, 2004 , and his record-setting run lasted until November 30, 2004. During that stretch, he played 75 games and won 74 straight before losing to Nancy Zerg.

Quick Scoop

  • First appearance: June 2, 2004.
  • Last game in his original run: November 30, 2004.
  • Notable result: 74 consecutive wins, the longest streak in the show’s history.

If you want, I can also give you a quick timeline of his later Jeopardy! appearances, including tournaments and hosting.