Giant Acorn Triathlon

SEP
26-27
2026
Take on the Giant Acorn Triathlon Festival at Lake Anna State Park, a two day swim, bike and run event with Olympic and Sprint distances, relays and aquabike. USA Triathlon sanctioned and serving as the Virginia State Championships.
Giant Acorn Sprint Aquabi... Giant Acorn Olympic Triat... Giant Acorn Olympic Aquab... Giant Acorn Olympic Triat... Giant Acorn Sprint Triath...

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Giant Acorn Triathlon Festival

The Giant Acorn Triathlon Festival is a two-day event staged at Lake Anna State Park in Spotsylvania, Virginia (6800 Lawyers Rd, Spotsylvania, VA 22551). The festival includes Olympic and Sprint triathlons, relay teams and aquabike events. The races are USA Triathlon sanctioned and serve as the USA Triathlon Virginia State Championships. Events are open to age-group athletes and many categories are scored, including age group, masters, military, collegiate, Clydesdale, Athena and relay teams.

Distances and course details

  • Olympic: 1.5K swim, 24.6 mile bike, 10K run
  • Sprint: 750 m swim, 15.5 mile bike, 5K run

Swims start from a sandy beach using a time trial start (two athletes every few seconds) and a rectangular course with two right turns; sighting buoys are placed about every 75 meters. Water temperatures at this section of Lake Anna typically average in the low 70s Fahrenheit; water quality is tested and the swim is canceled if unsafe. The bike courses are lollipop-style routes on rural, rolling roads. The run courses stay within the state park, are run on asphalt, and include shaded sections; the Olympic run is two loops of the same course used for the Sprint.

Logistics and rules

Registration is non-refundable; athletes must either hold a current USA Triathlon membership or purchase a 1-day license. Packet pickup is available at the race site in the days around the event and participants must present photo identification to collect packets. Transition rules include bicycle release only after the bike cutoff (2 hours from the last wave for the Sprint and 3 hours for the Olympic) or when the last runner exits transition. State championship qualification follows the stated USAT criteria for age-group qualifiers. Visit the organization's website for the most recent information.

Giant Acorn Sprint Aquabike (individual)
Giant Acorn Olympic Triathlon Relay
Giant Acorn Olympic Aquabike (individual)
Giant Acorn Olympic Triathlon (individual)
Giant Acorn Sprint Triathlon Relay
Giant Acorn Sprint Triathlon (individual)