smilzo
IRONMAN 70.3

IRONMAN 70.3 Boulder 2025

1.931 km swim · 89.3025 km bike · 21.0824 km run

Official results Age-group thresholds All editions
Finishers
1,615
115 did not finish or were disqualified
Best swim
23:27
1.931 km
Best bike
1:52:43
89.3025 km
Best run
1:11:00
21.0824 km
Men's podium
  1. 1 Bib 3AU · MPRO 3:35:59
  2. 2 Bib 2US · MPRO 3:38:43
  3. 3 Bib 4US · MPRO 3:40:43
Women's podium
  1. 1 Bib 1850US · F25-29 4:31:19
  2. 2 Bib 202EE · F40-44 4:41:54
  3. 3 Bib 1209US · F25-29 4:42:43

1,758 results · page 1 of 18

Pos Athlete AG AG pos Swim T1 Bike T2 Run Finish
1 Bib 3 AU MPRO 1 23:42 1:50 1:54:06 1:15 1:15:07 3:35:59
2 Bib 2 US MPRO 2 26:12 1:55 1:52:43 1:22 1:16:30 3:38:43
3 Bib 4 US MPRO 3 23:47 1:35 1:59:47 1:16 1:14:18 3:40:43
4 Bib 15 CA MPRO 4 23:42 1:41 1:59:36 1:17 1:16:00 3:42:16
5 Bib 8 NZ MPRO 5 25:29 1:44 1:57:49 1:18 1:18:30 3:44:50
6 Bib 22 US MPRO 6 26:17 1:56 2:04:45 1:17 1:11:00 3:45:16
7 Bib 16 US MPRO 7 28:55 1:51 1:58:13 1:24 1:15:26 3:45:49
8 Bib 12 US MPRO 8 23:45 2:03 1:59:03 1:36 1:20:00 3:46:26
9 Bib 7 US MPRO 9 26:16 1:53 1:56:32 1:34 1:20:28 3:46:43
10 Bib 6 US MPRO 10 26:31 2:07 1:58:15 1:18 1:18:42 3:46:53
11 Bib 44 US MPRO 11 31:45 2:47 1:59:52 2:08 1:12:08 3:48:40
12 Bib 17 BR MPRO 12 23:50 1:40 1:59:26 1:39 1:24:06 3:50:41
13 Bib 42 MX MPRO 13 23:41 2:02 2:02:43 1:50 1:20:39 3:50:55
14 Bib 30 DE MPRO 14 23:48 1:52 2:01:17 1:34 1:23:46 3:52:15
15 Bib 176 US M30-34 1 25:24 2:58 2:07:10 1:19 1:18:55 3:55:46
16 Bib 26 US MPRO 15 28:22 1:57 2:04:45 1:30 1:19:33 3:56:07
17 Bib 24 US MPRO 16 26:42 2:01 2:01:11 1:24 1:25:58 3:57:15
18 Bib 10 US MPRO 17 26:16 1:45 2:07:39 3:50 1:17:55 3:57:26
19 Bib 20 US MPRO 18 26:23 1:53 2:08:32 1:16 1:19:55 3:57:59
20 Bib 11 ZA MPRO 19 26:17 1:54 1:59:35 1:57 1:29:09 3:58:52
21 Bib 23 US MPRO 20 29:43 2:31 2:04:26 1:56 1:22:54 4:01:31
22 Bib 1890 US M18-24 1 28:00 2:14 2:09:05 1:34 1:20:41 4:01:34
23 Bib 14 US MPRO 21 28:23 1:47 2:02:52 1:21 1:27:58 4:02:21
24 Bib 33 US MPRO 22 31:09 3:11 2:05:30 1:49 1:20:58 4:02:37
25 Bib 21 US MPRO 23 23:43 1:54 2:06:00 2:11 1:28:54 4:02:41
26 Bib 45 US MPRO 24 23:27 1:52 2:11:37 1:42 1:24:19 4:02:57
27 Bib 36 US MPRO 25 23:56 1:45 2:05:00 1:29 1:31:41 4:03:51
28 Bib 18 US MPRO 26 26:08 2:06 2:09:14 2:02 1:24:34 4:04:05
29 Bib 209 AR M25-29 1 27:20 2:26 2:09:58 1:13 1:24:34 4:05:30
30 Bib 1644 US M18-24 2 31:35 2:58 2:11:11 1:25 1:19:13 4:06:23
31 Bib 27 US MPRO 27 26:14 2:14 2:06:40 1:27 1:31:41 4:08:15
32 Bib 180 US M30-34 2 28:22 2:23 2:05:39 1:41 1:30:14 4:08:20
33 Bib 29 US MPRO 28 28:27 2:01 2:10:08 2:40 1:26:38 4:09:54
34 Bib 39 MX MPRO 29 32:46 2:31 2:09:48 1:32 1:23:28 4:10:05
35 Bib 1472 US M30-34 3 29:36 2:13 2:11:29 1:54 1:25:07 4:10:19
36 Bib 46 US MPRO 30 29:40 2:24 2:11:20 1:27 1:25:33 4:10:24
37 Bib 564 US M18-24 3 30:10 2:31 2:07:17 1:48 1:29:49 4:11:34
38 Bib 240 MX M25-29 2 29:36 3:13 2:14:21 2:02 1:22:51 4:12:04
39 Bib 34 US MPRO 31 29:48 2:27 2:07:03 2:11 1:31:02 4:12:32
40 Bib 606 US M25-29 3 28:50 2:30 2:20:59 1:39 1:19:42 4:13:40
41 Bib 227 US M25-29 4 28:53 2:24 2:11:05 1:14 1:30:29 4:14:05
42 Bib 430 US M35-39 1 25:30 2:55 2:15:36 1:59 1:29:15 4:15:15
43 Bib 1093 US M30-34 4 29:52 3:07 2:15:46 2:01 1:24:37 4:15:21
44 Bib 31 BR MPRO 32 26:20 2:09 2:13:15 1:55 1:32:01 4:15:40
45 Bib 1781 US M35-39 2 31:38 2:09 2:12:08 1:32 1:28:16 4:15:43
46 Bib 318 US M55-59 1 28:38 3:03 2:15:09 1:59 1:27:12 4:16:01
47 Bib 32 US MPRO 33 30:24 2:08 2:12:01 2:06 1:29:38 4:16:17
48 Bib 236 US M40-44 1 27:00 3:16 2:07:21 2:01 1:36:42 4:16:21
49 Bib 1664 GB M40-44 2 31:20 2:57 2:12:31 2:31 1:29:19 4:18:37
50 Bib 184 AU M35-39 3 30:56 2:42 2:17:19 1:45 1:26:06 4:18:48
51 Bib 463 US M25-29 5 29:46 2:23 2:10:23 1:43 1:35:37 4:19:52
52 Bib 541 US M25-29 6 33:01 3:02 2:07:30 2:12 1:34:29 4:20:14
53 Bib 271 US M25-29 7 31:34 3:12 2:10:41 1:56 1:33:03 4:20:26
54 Bib 921 US M18-24 4 32:22 2:45 2:18:48 2:19 1:24:22 4:20:36
55 Bib 1614 US M50-54 1 27:54 2:23 2:18:20 1:54 1:30:24 4:20:55
56 Bib 1208 US M25-29 8 27:39 2:50 2:09:41 1:49 1:39:00 4:21:00
57 Bib 1820 US M40-44 3 28:49 4:07 2:15:05 2:25 1:30:42 4:21:08
58 Bib 552 US M25-29 9 24:57 3:13 2:11:27 1:48 1:40:02 4:21:28
59 Bib 1251 US M30-34 5 29:14 2:44 2:16:58 1:35 1:31:08 4:21:39
60 Bib 613 MX M45-49 1 34:29 2:43 2:15:40 1:47 1:27:07 4:21:46
61 Bib 206 US M18-24 5 26:42 2:20 2:15:11 2:00 1:36:32 4:22:45
62 Bib 272 US M40-44 4 34:26 3:15 2:16:02 2:46 1:26:28 4:22:57
63 Bib 211 MX M45-49 2 34:53 3:08 2:17:04 1:39 1:26:23 4:23:07
64 Bib 1715 US M30-34 6 36:29 2:53 2:06:37 3:05 1:34:09 4:23:13
65 Bib 43 ES MPRO 34 26:06 2:00 2:09:28 2:51 1:42:54 4:23:19
66 Bib 194 US M45-49 3 31:56 3:12 2:13:59 1:50 1:32:49 4:23:46
67 Bib 40 US MPRO 35 33:22 2:29 2:14:53 2:18 1:31:12 4:24:14
68 Bib 1778 US M40-44 5 35:50 3:00 2:14:36 1:33 1:29:52 4:24:49
69 Bib 420 US M55-59 2 32:11 2:43 2:14:03 1:31 1:35:08 4:25:36
70 Bib 1276 US M35-39 4 32:38 2:56 2:17:47 1:54 1:31:51 4:27:07
71 Bib 1158 BR M40-44 6 34:06 2:25 2:25:18 1:59 1:23:29 4:27:18
72 Bib 813 MX M30-34 7 28:45 2:53 2:22:05 3:35 1:30:04 4:27:22
73 Bib 255 US M35-39 5 33:49 3:11 2:17:47 3:00 1:29:50 4:27:37
74 Bib 372 US M35-39 6 33:48 4:16 2:14:41 1:56 1:33:04 4:27:45
75 Bib 175 IN M40-44 7 32:30 3:52 2:21:42 1:54 1:28:06 4:28:05
76 Bib 1687 US M18-24 6 32:02 3:09 2:09:02 1:45 1:43:06 4:29:03
76 Bib 260 PL M45-49 4 35:10 2:47 2:13:32 2:26 1:35:08 4:29:03
78 Bib 182 US M18-24 7 28:09 4:06 2:21:20 1:34 1:34:04 4:29:13
79 Bib 1190 US M30-34 8 29:37 2:43 2:18:29 3:16 1:35:23 4:29:28
80 Bib 330 US M35-39 7 31:49 2:43 2:17:52 2:13 1:35:32 4:30:09
81 Bib 426 US M25-29 10 29:25 3:07 2:10:30 2:11 1:45:01 4:30:13
82 Bib 784 US M18-24 8 33:46 2:50 2:31:06 1:26 1:21:13 4:30:20
83 Bib 294 US M45-49 5 28:22 3:08 2:19:31 3:09 1:36:12 4:30:21
84 Bib 237 US M50-54 2 33:23 3:33 2:20:45 2:10 1:30:54 4:30:45
85 Bib 768 MX M18-24 9 31:39 3:21 2:22:43 2:12 1:31:21 4:31:16
86 Bib 1850 US F25-29 1 26:14 2:47 2:18:06 2:15 1:41:57 4:31:19
87 Bib 1735 US M35-39 8 33:02 3:32 2:18:28 2:34 1:34:47 4:32:22
88 Bib 590 AR M35-39 9 45:37 3:51 2:14:36 1:39 1:26:52 4:32:36
89 Bib 307 BR M40-44 8 29:20 2:25 2:16:08 2:07 1:43:18 4:33:18
90 Bib 983 US M25-29 11 31:52 3:23 2:12:12 2:13 1:43:55 4:33:36
91 Bib 196 US M60-64 1 35:23 4:52 2:15:12 2:45 1:35:40 4:33:51
92 Bib 1675 US M25-29 12 33:13 2:55 2:18:49 1:55 1:37:19 4:34:11
93 Bib 219 MX M30-34 9 33:53 3:05 2:18:07 2:46 1:36:24 4:34:16
94 Bib 703 US M45-49 6 39:07 2:48 2:18:40 2:36 1:32:06 4:35:18
95 Bib 286 US M30-34 10 31:24 2:50 2:23:40 2:27 1:35:05 4:35:26
96 Bib 308 BR M45-49 7 32:51 3:13 2:15:28 2:14 1:41:48 4:35:33
97 Bib 1800 US M35-39 10 30:53 2:21 2:17:20 2:07 1:43:06 4:35:48
98 Bib 773 MX M45-49 8 37:17 3:34 2:20:16 2:34 1:32:11 4:35:52
99 Bib 1273 MX M40-44 9 30:58 3:28 2:24:11 2:39 1:34:56 4:36:12
100 Bib 1405 US M30-34 11 33:07 4:32 2:17:51 3:12 1:37:36 4:36:18

Anonymised data (no names, only bib and age group). Source: Seffrin et al. 2026, Zenodo, CC BY 4.0.