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Erie Moon Mammoths Draw Record Crowd in Debut at UPMC Park

Oliver’s comedic overhaul revives local lore to spark a merchandise frenzy, with more limited-run games slated for later this season.

John Oliver and Fuss E. Mammoth, the Moon Mammoth mascot, are driven onto the field before a game between the Chesapeake Oyster Catchers and the Erie Moon Mammoths at UMPC Park in Erie, Pa., on Saturday, July 19, 2025. (AP Photo/Joe Reedy)
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John Oliver, left, and George Moon stand with Fuzz E. Mammoth, the Moon Mammoth mascot, before a game between the Chesapeake Oyster Catches and Erie Moon Mammoths at UMPC Park in Erie, Pa., on Saturday, July 19, 2025. (AP Photo/Joe Reedy)
John Oliver speaks to media before a baseball game between the Chesapeake Oyster Catchers and the Erie Moon Mammoths at UMPC Park in Erie, Pa., on Saturday, July 19, 2025. (AP Photo/Joe Reedy)

Overview

  • John Oliver threw out the first pitch, served as a batboy and led “Take Me Out to the Ballgame” during the Moon Mammoths’ inaugural game on July 19.
  • A stadium-record 7,070 fans attended the debut at UPMC Park, surpassing all previous SeaWolves attendance marks.
  • The Moon Mammoths identity draws on George Moon’s 1991 discovery of a prehistoric mammoth bone in Lake Pleasant.
  • Team president Greg Coleman said online sales have equaled four years’ worth of merchandise in just three weeks, with long in-park lines for gear.
  • Additional Moon Mammoths games are set for August 19 and September 12–13 this season, and at least four more appearances are planned for 2026.