The Great Loon Triathlon

AUG
15
2026
The Great Loon Triathlon at Lake Mattanawcook offers sprint to half Ironman races and duathlon options with relays. Postponed to a new date TBD; registered athletes keep entry or can transfer to other Lifestyle Sports Global events.
Sat 15 Aug 2026
Half Ironman (1.2 Mile Sw... Relay Half Ironman (1.2 M... Sprint Triathlon (750 M S... Olympic Triathlon (1500 M... Sprint Duathlon

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Great Loon Triathlon is organized by Lifestyle Sports Global LLC in Lincoln, Maine. Races are scheduled to begin and end at Prince Thomas Park on Lake Mattanawcook. The event includes multiple race formats and distances:

  • Olympic Triathlon: 1500 meter swim, 40k bike, 10k run
  • Sprint Triathlon: 750 meter swim, 20k bike, 5k run
  • Half Ironman: 1.2 mile swim, 56 mile bike, 13.1 mile run
  • Relay Half Ironman: relay format of the half distance
  • Olympic Duathlon: duathlon option for the Olympic distance
  • Sprint Duathlon: duathlon option for the sprint distance

Place listed for the event is 2 Lake St, Lincoln, ME 04457.

Status and logistics

The event is currently marked as postponed with a new date listed as TBD. Registrations are preserved for the rescheduled event. The organizer is offering a free entry option to other Lifestyle Sports Global events in 2025 or 2026 for registered participants. Additional course maps and route information are referenced for the venue. Visit the organization's website for the most recent information.

40 km
Olympic Triathlon (1500 M Swim / 40 Km Bike / 10 Km Run)
20 km
Sprint Triathlon (750 M Swim / 20 Km Bike / 5 Km Run)
Half Ironman (1.2 Mile Swim / 56 Mile Bike / 13.1 Mile Run)
Relay Half Ironman (1.2 Mile Swim / 56 Mile Bike / 13.1 Mile Run)
Sprint Duathlon
Olympic Duathlon

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