Giant Acorn Triathlon

SEP
26-27
2026
The Giant Acorn Triathlon Festival offers Olympic and Sprint distance events at scenic Lake Anna State Park. Athletes can compete individually or in teams, with the swim starting from a sandy beach. This event also serves as the USA Triathlon Virginia State Championships.
Giant Acorn Sprint Swim Giant Acorn Olympic Swim Giant Acorn Olympic Run Giant Acorn Aquabike Bike Giant Acorn Aquabike Swim

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Event Overview

The Giant Acorn Triathlon Festival features Olympic and Sprint distance triathlon events. The event takes place at Lake Anna State Park in Spotsylvania, Virginia. It is scheduled for two days in September.

Distances and Events

The festival includes six events split across two days. On the first day, the Olympic distance events are held. On the second day, the Sprint distance events take place.

Olympic Distance Events (Day 1)

  • Individual Olympic Triathlon: A 1.5k swim, a 24.6-mile bike, and a 10k run.
  • Individual Olympic Aquabike: A 1.5k swim and a 24.6-mile bike.
  • Olympic Triathlon Relay: A team event (2 or 3 people) covering the same Olympic distances.

Sprint Distance Events (Day 2)

  • Individual Sprint Triathlon: A 750m swim, a 15.5-mile bike, and a 5k run.
  • Individual Sprint Aquabike: A 750m swim and a 15.5-mile bike.
  • Sprint Triathlon Relay: A team event (2 or 3 people) covering the same Sprint distances.

All events are open to participants aged 12 and over.

Course and Venue Details

The races are staged at Lake Anna State Park. The swim start is from a sandy beach using a time trial format, where athletes start two at a time. The swim takes place in freshwater. The bike course travels on rolling country roads. The run course is contained entirely within the state park grounds.

The park venue offers banked stadium-style seating overlooking sections of the course and the finish line. The park itself features amenities like miles of trails, a playground, a swimming beach, and a visitors center with a "gold mine" exhibit.

Additional Information

The event is the USA Triathlon Virginia State Championships for both Olympic and Sprint distances. It is a USA Triathlon sanctioned event. Registration includes several items: a finisher medal, a long-sleeved tech shirt, custom race socks, a reusable bag for packet pickup, timed results, age group awards, a post-race meal, a finisher certificate, and free finish line photos.

A discount is available for participants who register for events on both days. The event also features a time trial swim start procedure and an "Elite Box Start" option for athletes aiming for top overall positions. Visit the organization's website for the most recent information.

10 km
Giant Acorn Olympic Run
Giant Acorn Olympic Swim
Giant Acorn Sprint Swim
Giant Acorn Aquabike Bike
Giant Acorn Aquabike Swim
Giant Acorn Olympic Bike
Giant Acorn Sprint Aquabike Bike
Giant Acorn Sprint Aquabike Swim
Giant Acorn Sprint Bike

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