Atlantic City Triathlon
Atlantic City, New Jersey6:30 AM startOpen water swim
from $139
RegisterRace calendar
Triathlons in August 2027
82 triathlons, duathlons and aquabikes across 31 states in August 2027: 66 sprint, 24 olympic, 6 half iron, 1 full iron, 18 kids, 33 duathlon. 55 swim in open water and 22 in a pool. Dates and fees come from race registration and refresh every night.
82
races in August
31
states
22
with a pool swim
$65
typical entry fee
Other months
August triathlons by state
Sunday, August 1
from $85
RegisterAndy's Race
Greenville, South Carolina7:00 AM startPool swim
from $65
RegisterTriathlon 2027
Quakertown, Pennsylvania7:15 AM startOpen water swim
from $105
RegisterBattle of Waterloo 10-Stage Adventure Triathlon
Grass Lake, Michigan7:30 AM startOpen water swim
from $210
RegisterSylvania Triathlon, Duathlon, Aquabike & Relay Presented by Premier Wealth Management Group
Sylvania, Ohio7:30 AM startOpen water swim
from $40
Register2027 Matt Mason "Cowboy UP" Triathlon/Duathlon
Smithville, Missouri7:00 AM startOpen water swim
from $85
Register43rd Annual Greenfield Triathlon
Greenfield, Massachusetts8:00 AM startOpen water swim
from $120
Register
from $70
Register
from $30
RegisterNaperville Sprint Triathlon
Naperville, Illinois7:00 AM startPool swim
from $70
Register
from $35
Register
from $39
RegisterStagecoach Gravel Triathlon
Oak Creek, Colorado8:05 AM startTrailOpen water swim
from $110
RegisterWednesday, August 4
Southern Tier Triathlon Club Summer Tri Series #3
Cassadaga, New York5:45 PM startOpen water swim
from $89
RegisterFriday, August 6
from Free
RegisterSaturday, August 7
from $80
Register2027 Brigantine Beach Triathlon
Brigantine, New Jersey8:00 AM startOpen water swim
from $50
RegisterRock the Quarry Triathlon and Mile Swim
Goshen, Indiana8:00 AM startOpen water swim
Sprint Triathlon1 Mile
from $40
Register
from $55
RegisterKill Creek Park Triathlon, Duathlon, Aquabike, & Aquathlon
Olathe, Kansas7:30 AM startOpen water swim
from $40
Register
from $75
RegisterTwin Lakes Triathlon
Manson, Iowa7:30 AM startOpen water swim
from $20
Register
from $65
RegisterHAGG Lake Triathlon
Gaston, Oregon6:00 AM startOpen water swim
from $157
Register
from $50
Register
from $95
RegisterTri for Real Triathlon #3
Herald, California8:00 AM startOpen water swim
Hagerstown Sprint & Youth Triathlon
Hagerstown, Maryland6:30 PM startPool swim
from $60
RegisterSunday, August 8
19th Annual Rocco Laurie Memorial Staten Island Triathlon/Duathlon
Staten Island, New York5:00 AM startOpen water swim
from Free
RegisterOTILLO Swimrun Casco Bay Islands
Long Island, Maine6:00 AM startOpen water swim
from $45
RegisterAdventHealth Cool Sommer Mornings Triathlon\Duathlon\5K Series #3
Clermont, Florida7:00 AM startOpen water swim
from $44
RegisterLoon Triathlon - Sprint/Olympic/Duathlon/Sprint Duathlon
Lincoln, Maine7:30 AM startOpen water swim
from $55
RegisterLums Pond Triathlon
Bear, Delaware7:30 AM startOpen water swim
from $114
Register
from $30
Register
from $30
RegisterTri Santa Cruz
Santa Cruz, California8:00 AM startOpen water swim
from $80
RegisterWednesday, August 11
Hudson Valley Triathlon Club Summer Tri Series #3
Mount Tremper, New York5:45 PM startOpen water swim
from $89
RegisterSaturday, August 14
The Mighty Moraine Fall Multi-Sport Festival
Portersville, Pennsylvania6:45 AM startOpen water swim
from $30
RegisterBrookville Olympic Triathlon, Duathlon, & Aquabike; Sprint Triathlon & Aquabike #
Barnegat, New Jersey7:30 AM startOpen water swim
from Free
RegisterThe page shows the next August to come. Races appear as their organizers open registration, so later months fill in through the winter.