Ranked from data

Largest duathlons in the US

Duathlons in the US ranked by finishers in each race's most recent scored edition.

races ranked

states with their own list

#	Race	Where	Next date	Finishers	Median finish
1	Columbia Duathlon2026 edition	Columbia, Maryland	Apr 11, 2027	227	1:18:51
2	Navy Seal Swim2026 edition	Rochelle Park, New Jersey	TBA	191	5:10:53
3	Tri 4 Schools Madison Bike + Run2025 edition	Madison, Wisconsin	TBA	183	19:33
4	Monster Triathlon2026 edition	Keller, Texas	Oct 10, 2027	160	1:33:56
5	Tidewater Striders Duathlon2026 edition	Chesapeake, Virginia	TBA	155	1:23:14
6	Spring Classic Duathlon, Half, 10k & 5k2026 edition	Vancouver, Washington	May 1, 2027	144	1:50:09
7	Racin' the Station Duathlon2025 edition	Huntsville, Alabama	TBA	125	1:27:19
8	The Fox River Challenge2026 edition	Wrightstown, Wisconsin	TBA	121	1:36:02
9	Northeast Park Duathlon2026 edition	Gibsonville, North Carolina	Feb 27, 2027	101	1:08:08
10	Erie Duathlon in support of the Erie Cancer Wellness Center2026 edition	Girard, Pennsylvania	TBA	97	1:51:30
11	Rev3 Mighty Matapeake2026 edition	Stevensville, Maryland	TBA	92	1:20:18
12	SOUTH FORK DUATHLON2026 edition	Whitehouse, Ohio	May 26, 2027	90	1:15:57
13	Cherrylake Farm Races presented by Orlando Health2026 edition	Groveland, Florida	Feb 6, 2027	79	1:22:13
14	Super Bowl Duathlon2026 edition	Clermont, Florida	Feb 14, 2027	79	1:17:08
15	Ordinary Mortals Triathlon2025 edition	Pueblo, Colorado	May 8, 2027	77	1:56:58
16	Kennett Run2026 edition	Kennett Square, Pennsylvania	TBA	76	28:53
17	Tulsa Area Triathletes Chris Brown Tulsa DU 20262026 edition	Tulsa, Oklahoma	TBA	76	29:27
18	DOOBY DU DUATHLON2026 edition	Sylvania, Ohio	May 5, 2027	74	1:32:00
19	Lake Montclair Triathlon & Duathlon2025 edition	Montclair, Virginia	TBA	73	1:33:05
20	The Bill Bone Tropical Triathlon2025 edition	Lake Worth, Florida	TBA	70	1:18:15
21	Cocoa Beach Triathlon & Duathlon2026 edition	Cocoa Beach, Florida	Apr 11, 2027	67	1:30:18
22	Game On! Key Largo Triathlon Summer2026 edition	Key Largo, Florida	TBA	64	1:30:48
23	Wisconsin Women's Triathlon2026 edition	Pleasant Prairie, Wisconsin	Aug 15, 2027	64	1:41:22
24	THE DOVER DUATHLON 20262026 edition	Dover, Delaware	TBA	61	1:16:14
25	35TH DAVE REYNOLDS BIATHLON, 2-PERSON RELAY & Kid's Mini Biathlon2026 edition	Rehoboth Beach, Delaware	TBA	60	39:55
26	Edinburg Dirty Duathlon2026 edition	Edinburg, Texas	TBA	58	53:26
27	Pinnacle Peak Duathlon2025 edition	Enumclaw, Washington	TBA	51	1:40:21
28	SPRINT AND SPLASH2026 edition	Chesterfield, Michigan	TBA	50	1:11:58
29	Mohawk Towpath Byway Duathlon2026 edition	Rexford, New York	TBA	49	1:25:20
30	Summer Kickoff Kids Duathlon 20262026 edition	Colorado Springs, Colorado	TBA	48	15:09
31	Beast of Burden2026 edition	Fayetteville, Arkansas	TBA	47	7:31:19
32	PINE BARRENS TRAIL DUATHLON2025 edition	Ridge, New York	TBA	47	1:24:48
33	Game On! ManateeMan Triathlon2026 edition	Cape Coral, Florida	TBA	45	1:21:28
34	HefnerHarvest2026 edition	OKC, Oklahoma	TBA	45	55:45
35	AdventHealth Great Clermont Triathlon2026 edition	Clermont, Florida	Mar 7, 2027	43	1:12:52
36	Mini Maniac Youth Triathlon @ Cedar Creek Park (Cedar Creek Duathlon)2026 edition	Seaford, New York	TBA	43	24:43
37	Nic's Race 5k, Kids 2k, & Duathlon2025 edition	Anchorage, Alaska	TBA	43	17:31
38	The Great Peace Valley 5 Miler, 5k, 2 Mile Run/Walk & DUATHLON!2026 edition	Chalfont, Pennsylvania	TBA	42	1:18:51
39	Cypress Sprint and Youth Triathlon2026 edition	Cypress, Texas	TBA	41	1:20:14
40	Spring Ahead Duathlon & Bike Race #2025 edition	Millville, New Jersey	May 15, 2027	40	1:30:35
41	Columbia River Triathlon2025 edition	Vancouver, Washington	Jul 9, 2027	38	1:55:01
42	DeGray Lake Triathlon2026 edition	Caddo Valley, Arkansas	Sep 12, 2027	38	1:58:27
43	Indian River Networks 41st Annual PineappleMan Triathlon/Duathlon2026 edition	Melbourne Beach, Florida	Jun 6, 2027	38	1:53:37
44	WHITEHOUSE MULTI-SPORT FESTIVAL2026 edition	Whitehouse, Ohio	Jun 19, 2027	38	1:19:45
45	DQ Long Beach Island Triathlon, Duathlon, & Aquabike at Bayview Park *#2026 edition	Long Beach, New Jersey	Sep 19, 2027	37	1:31:20
46	Nat Greene's Revenge Triathlons and Duathlon2026 edition	Greensboro, North Carolina	TBA	37	1:37:34
47	SYLVANIA TRIATHLON, DUATHLON, AQUABIKE & RELAY Presented by Premier Wealth Management Group2026 edition	Sylvania, Ohio	Aug 1, 2027	37	1:26:17
48	Epic Races' Island Lake Triathlon, Duathlon, Aquabike2025 edition	Brighton, Michigan	Jun 5, 2027	36	1:37:12
49	Wild River Dash2026 edition	Boise, Idaho	Aug 21, 2027	36	29:45
50	Ride on Ryan Sprint Triathlon and Duathlon2026 edition	Savannah, Georgia	Apr 17, 2027	35	1:31:44

By state

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Rankings use each race's most recent scored edition from the last 24 months and refresh as results are posted. Races without published results are not ranked.