Ranked from data

Largest triathlons in New Jersey

Triathlons in New Jersey 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

#	Race	Where	Next date	Finishers	Median finish
1	ISLANDMAN TRIATHLON2026 edition	Avalon, New Jersey	TBA	359	1:26:44
2	Stone Harbor Triathlon2026 edition	Stone Harbor, New Jersey	TBA	314	1:21:42
3	DQ 16th Annual Medford Lakes Colony Sprint Triathlon, Duathlon, & Aquabike *#2026 edition	Medford Lakes, New Jersey	Aug 22, 2027	299	1:43:06
4	2026 Wyckoff/Franklin Lakes Triathlon2026 edition	Franklin Lakes, New Jersey	TBA	282	1:40:39
5	DQ Treasure Island Sprint Triathlon, Duathlon, Aquabike, & Kayak Triathlon *#2025 edition	PT Pleasant, New Jersey	Sep 26, 2027	253	1:14:38
6	DQ Long Beach Island Triathlon, Duathlon, & Aquabike at Bayview Park *#2026 edition	Long Beach, New Jersey	Sep 19, 2027	245	1:22:16
7	Lake Hopatcong Sprint Triathlon Challenge Presented by Saint Clare's Health2026 edition	Hopatcong, New Jersey	TBA	205	1:39:32
8	Princeton Triathlon2026 edition	Princeton, New Jersey	Jun 4, 2027	205	1:19:43
9	Birchwood Lakes Triathlon2026 edition	Medford, New Jersey	TBA	143	1:31:50
10	Riverwinds Triathlon2026 edition	West Deptford, New Jersey	Apr 25, 2027	141	1:24:50
11	Lava Rocks! Sprint Triathlon - Aquabike - Saturday - May 30, 20262026 edition	Lavallette, New Jersey	TBA	139	1:16:21
12	ISLANDKIDS TRIATHLON2026 edition	Avalon, New Jersey	TBA	122	22:57
13	DQ Pine Barrens Olympic Triathlon, Duathlon, & Aquabike; Sprint Triathlon & Aquathlon *#2026 edition	Shamong, New Jersey	Sep 11, 2027	114	2:44:15
14	Autumn Lake Triathlon2026 edition	Williamstown, New Jersey	TBA	112	1:40:34
15	Stafford Race for HOPE Triathlon, Duathlon, & Aquabike #2026 edition	Manahawkin, New Jersey	Jun 13, 2027	101	1:19:47
16	DQ Laurel Lake Triathlon, Duathlon, Aquabike, Aquathlon, & Super Sprint Triathlon in honor of William Laubengeyer *#2026 edition	Millville, New Jersey	Jul 24, 2027	98	1:27:13
17	DQ Triathlon, Duathlon, Aquabike, Aquathlon, & Super Sprint Triathlon at Vincentown *#2026 edition	Vincentown, New Jersey	Jul 10, 2027	96	1:24:45
18	Brookville Olympic Triathlon, Duathlon, & Aquabike; Sprint Triathlon & Aquabike #2026 edition	Barnegat, New Jersey	Aug 14, 2027	94	1:34:20
19	Lake Lenape Tri/Aqua/Du2026 edition	Mays Landing, New Jersey	TBA	87	1:14:44
20	Sunset Lake Triathlon #2026 edition	Bridgeton, New Jersey	Jun 19, 2027	67	1:31:28
21	TRI Mountain Lake2026 edition	Liberty Township, New Jersey	TBA	58	1:47:03
22	Survival of the Mills: 5-Stage Triathlon & Duathlon #2025 edition	Waretown, New Jersey	TBA	57	2:03:57
23	Greenfields Tri/Aqua/Du/ 5K & Splash and Dash #2026 edition	West Deptford, New Jersey	Aug 15, 2027	56	1:26:51
24	Lake Wenonah Tri/Aqua/Du2026 edition	Wenonah, New Jersey	Sep 25, 2027	43	1:36:55

More rankings in New Jersey