Ranked from data

Largest triathlons in the US

Triathlons in the US ranked by finishers in each race's most recent scored edition. Big fields mean closed roads, full aid stations, and a real race-day crowd.

races ranked

states with their own list

#	Race	Where	Next date	Finishers	Median finish
1	Gold Nugget Triathlon2026 edition	Anchorage, Alaska	TBA	1,395	1:48:06
2	Cohasset Triathlon2025 edition	Cohasset, Massachusetts	TBA	936	1:28:21
3	Lake Mills Triathlon2026 edition	Lake Mills, Wisconsin	Jun 6, 2027	695	1:36:27
4	Devil's Challenge Triathlon2026 edition	Baraboo, Wisconsin	Sep 19, 2027	694	1:56:24
5	YMCA Wrightsville Beach Sprint Triathlon2025 edition	Wrightsville Beach, North Carolina	TBA	670	1:40:04
6	Reston Sprint Triathlon2026 edition	Reston, Virginia	TBA	663	1:32:55
7	Nantucket Triathlon2025 edition	Nantucket, Massachusetts	TBA	603	1:32:19
8	Pleasant Prairie Triathlon2026 edition	Pleasant Prairie, Wisconsin	Jun 27, 2027	508	1:49:42
9	Wisconsin Women's Triathlon2026 edition	Pleasant Prairie, Wisconsin	TBA	504	1:48:06
10	Sugar River Triathlon2026 edition	Belleville, Wisconsin	Aug 22, 2027	465	1:50:45
11	Pardeeville Triathlon2026 edition	Pardeeville, Wisconsin	Jul 10, 2027	456	1:35:53
12	Tri-ing for A Cure Triathlon2026 edition	Dousman, Wisconsin	Jul 25, 2027	456	1:46:55
13	Montauk Lighthouse Triathlon2026 edition	Montauk, New York	TBA	449	1:43:21
14	Cypress Sprint and Youth Triathlon2026 edition	Cypress, Texas	TBA	434	1:18:58
15	Tri CLE2026 edition	Cleveland, Ohio	TBA	430	1:41:30
16	Niantic Bay Triathlon2026 edition	Niantic, Connecticut	TBA	416	1:37:41
17	Runner's Edge - TOBAY Triathlon & Junior Triathlon2026 edition	Oyster Bay, New York	TBA	404	1:26:27
18	Wisconsin Triterium Triathlon2026 edition	Verona, Wisconsin	Jun 26, 2027	398	1:30:59
19	Monster Triathlon2025 edition	Keller, Texas	Oct 11, 2026	379	1:38:25
20	Peachtree Intl & SuperSprint Triathlons and AquaBike2025 edition	Peachtree City, Georgia	TBA	372	2:58:07
21	Lake Country Triathlon2026 edition	Oconomowoc, Wisconsin	Jul 31, 2027	363	1:37:45
22	ISLANDMAN TRIATHLON2026 edition	Avalon, New Jersey	TBA	359	1:26:44
23	Tri the Parks - Lake Lanier Rowing Park Sprint2026 edition	Gainesville, Georgia	TBA	358	1:39:16
24	Rock Hall Triathlon2026 edition	Rock Hall, Maryland	TBA	352	1:45:06
25	Huntsville Sprint Triathlon2026 edition	Huntsville, Alabama	TBA	350	1:12:13
26	Oilman Texas Triathlon2025 edition	Montgomery, Texas	Nov 14, 2026	349	1:27:26
27	Lago Mar MultiSport Festival2026 edition	Texas City, Texas	TBA	348	1:32:33
28	Smith Point Sprint Triathlon2026 edition	Shirley, New York	TBA	346	1:19:37
29	EOD Memorial Challenge 20262026 edition	Niceville, Florida	TBA	335	2:08:34
30	Loveland Lake to Lake Triathlon2026 edition	Loveland, Colorado	TBA	331	1:48:36
31	Indian River Networks 41st Annual PineappleMan Triathlon/Duathlon2026 edition	Melbourne Beach, Florida	Jun 6, 2027	326	1:29:30
32	Waterman's Triathlon Festival2025 edition	Rock Hall, Maryland	Oct 3, 2026	326	1:44:29
33	JAMESPORT TRIATHLON2026 edition	Riverhead, New York	Jul 11, 2027	321	1:37:22
34	22nd Annual Steelman Racing Triathlon - August 2nd, 20262026 edition	Quakertown, Pennsylvania	TBA	317	1:46:12
35	Stone Harbor Triathlon2026 edition	Stone Harbor, New Jersey	TBA	314	1:21:42
36	Green Lake Triathlon2026 edition	Green Lake, Wisconsin	Jul 18, 2027	313	1:34:04
37	City of Edinburg Triathlon2026 edition	Edinburg, Texas	TBA	310	1:01:27
38	Columbia River Triathlon2025 edition	Vancouver, Washington	Jul 9, 2027	309	1:31:54
39	Old College Tri & 5K2026 edition	Denton, Texas	Aug 22, 2027	304	1:25:46
40	Second Beach Sprint Triathlon2026 edition	Middletown, Rhode Island	TBA	303	1:24:08
41	Cocoa Beach Triathlon & Duathlon2026 edition	Cocoa Beach, Florida	Apr 11, 2027	299	1:23:18
42	DQ 15th Annual Medford Lakes Colony Sprint Triathlon, Duathlon, & Aquabike *#2026 edition	Medford Lakes, New Jersey	TBA	299	1:43:06
43	Marsh Creek Sprint Triathlon2026 edition	Downingtown, Pennsylvania	TBA	299	1:48:06
44	Blackland Triathlon and Blackland Youth Tri2026 edition	Plano, Texas	TBA	297	1:37:40
45	Smithfield Sprint Triathlon2026 edition	Smithfield, Virginia	TBA	291	1:20:57
46	Tri PTC Sprint Triathlon2026 edition	Peachtree City, Georgia	TBA	291	1:31:11
47	Tri the Parks - Don Carter State Park Sprint2026 edition	Gainesville, Georgia	TBA	289	1:31:24
48	Azalea Sprint Triathlon2026 edition	Wilmington, North Carolina	Mar 7, 2027	288	1:19:07
49	Lake Tye Triathlon - 20262026 edition	Monroe, Washington	TBA	285	1:35:43
50	2026 Wyckoff/Franklin Lakes Triathlon2026 edition	Franklin Lakes, New Jersey	TBA	282	1:40:39

By state

More rankings

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.