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IRONMAN 70.3

IRONMAN 70.3 Boulder 2021

1.931 km swim · 90.1263 km bike · 21.0824 km run

Official results Age-group thresholds All editions
Finishers
1,428
105 did not finish or were disqualified
Best swim
24:40
1.931 km
Best bike
1:54:50
90.1263 km
Best run
1:12:01
21.0824 km
Men's podium
  1. 1 Bib 2US · MPRO 3:37:35
  2. 2 Bib 3AU · MPRO 3:41:00
  3. 3 Bib 6US · MPRO 3:43:05
Women's podium
  1. 1 Bib 53GB · FPRO 3:59:54
  2. 2 Bib 78US · FPRO 4:02:20
  3. 3 Bib 56US · FPRO 4:02:32

1,568 results · page 1 of 16

Pos Athlete AG AG pos Swim T1 Bike T2 Run Finish
1 Bib 2 US MPRO 1 28:35 1:07 1:54:50 1:01 1:12:01 3:37:35
2 Bib 3 AU MPRO 2 24:40 1:27 1:58:32 1:07 1:15:15 3:41:00
3 Bib 6 US MPRO 3 25:33 1:14 2:01:14 1:04 1:14:00 3:43:05
4 Bib 5 ZA MPRO 4 25:55 1:16 2:02:05 1:09 1:13:48 3:44:14
5 Bib 4 US MPRO 5 25:35 1:05 2:02:30 1:08 1:15:21 3:45:40
6 Bib 42 AU MPRO 6 25:46 1:12 2:02:26 1:17 1:16:06 3:46:48
7 Bib 28 US MPRO 7 27:22 1:20 2:02:58 1:08 1:14:16 3:47:04
8 Bib 33 CL MPRO 8 25:30 1:26 2:02:25 1:07 1:17:31 3:47:59
9 Bib 44 US MPRO 9 25:38 1:32 2:04:30 1:08 1:16:11 3:48:59
10 Bib 43 US MPRO 10 25:38 1:32 2:01:57 1:21 1:19:52 3:50:19
11 Bib 11 MX MPRO 11 25:41 1:22 2:08:28 1:34 1:14:57 3:52:02
12 Bib 18 US MPRO 12 28:33 1:20 2:01:44 1:13 1:23:33 3:56:23
13 Bib 25 CA MPRO 13 28:53 1:47 2:05:52 0:58 1:19:43 3:57:13
14 Bib 24 US MPRO 14 28:08 1:34 2:07:36 1:30 1:18:54 3:57:41
15 Bib 46 US MPRO 15 27:29 1:33 2:08:04 1:13 1:19:54 3:58:13
16 Bib 37 BR MPRO 16 25:44 1:18 2:09:34 1:12 1:21:13 3:59:02
17 Bib 12 US MPRO 17 25:40 1:11 2:05:37 1:03 1:25:53 3:59:24
18 Bib 53 GB FPRO 1 27:48 1:12 2:11:59 1:16 1:17:40 3:59:54
19 Bib 23 CA MPRO 18 25:59 1:26 2:07:48 1:11 1:23:32 3:59:55
20 Bib 10 US MPRO 19 25:49 1:12 2:08:13 1:14 1:24:15 4:00:43
21 Bib 27 CA MPRO 20 32:04 1:05 2:09:36 1:13 1:17:41 4:01:39
22 Bib 26 US MPRO 21 27:26 1:25 2:09:18 1:27 1:22:44 4:02:20
22 Bib 78 US FPRO 2 26:05 1:13 2:12:25 0:57 1:21:40 4:02:20
24 Bib 56 US FPRO 3 27:02 1:13 2:12:37 1:10 1:20:29 4:02:32
25 Bib 21 US MPRO 22 27:23 1:16 2:07:57 1:14 1:25:06 4:02:56
26 Bib 16 US MPRO 23 28:38 1:15 2:09:12 2:28 1:21:33 4:03:07
27 Bib 554 US M25-29 1 28:59 1:42 2:11:00 1:19 1:20:26 4:03:25
28 Bib 819 US M25-29 2 31:06 1:48 2:09:01 1:30 1:21:15 4:04:40
29 Bib 41 US MPRO 24 25:32 1:42 2:06:58 1:09 1:30:48 4:06:08
30 Bib 1179 US M30-34 1 30:29 1:34 2:13:45 1:30 1:19:48 4:07:06
31 Bib 50 US FPRO 4 28:54 1:22 2:12:47 1:10 1:25:29 4:09:43
32 Bib 64 CA FPRO 5 29:37 1:38 2:21:07 1:28 1:16:51 4:10:41
33 Bib 55 US FPRO 6 28:57 1:20 2:14:30 1:09 1:25:04 4:11:00
34 Bib 381 US M35-39 1 31:39 1:32 2:13:06 1:18 1:26:24 4:13:59
35 Bib 14 US MPRO 25 26:24 1:12 2:22:10 1:18 1:23:00 4:14:03
36 Bib 1537 US M25-29 3 33:09 2:08 2:14:19 1:27 1:24:34 4:15:37
37 Bib 60 US FPRO 7 29:40 1:33 2:20:53 1:46 1:21:56 4:15:48
38 Bib 1030 US M35-39 2 31:35 1:46 2:15:40 1:28 1:25:50 4:16:19
39 Bib 684 US M18-24 1 27:16 1:36 2:14:13 1:22 1:31:59 4:16:26
40 Bib 1300 US M45-49 1 27:02 1:52 2:20:17 1:18 1:26:57 4:17:26
41 Bib 1259 US M35-39 3 27:13 2:21 2:12:35 1:47 1:33:35 4:17:32
42 Bib 61 US FPRO 8 33:06 1:31 2:15:13 1:08 1:27:21 4:18:20
43 Bib 117 US M18-24 2 32:25 2:47 2:18:13 1:34 1:23:24 4:18:23
44 Bib 34 US MPRO 26 28:41 1:23 2:25:30 3:39 1:19:27 4:18:39
45 Bib 548 PL M40-44 1 32:16 2:14 2:13:35 2:19 1:29:22 4:19:47
46 Bib 57 US FPRO 9 28:44 1:21 2:14:36 1:40 1:33:29 4:19:49
47 Bib 75 US FPRO 10 26:58 1:18 2:20:07 1:06 1:30:30 4:19:59
48 Bib 73 US FPRO 11 29:42 1:41 2:19:25 1:29 1:28:14 4:20:31
49 Bib 1553 US M30-34 2 35:51 2:08 2:12:02 1:14 1:30:33 4:21:47
50 Bib 83 US FPRO 12 30:59 1:31 2:24:50 1:14 1:23:21 4:21:55
51 Bib 887 US M45-49 2 28:44 2:11 2:15:57 1:12 1:34:21 4:22:24
52 Bib 907 US M30-34 3 29:11 1:47 2:25:43 1:10 1:25:03 4:22:54
53 Bib 82 BR FPRO 13 26:06 1:14 2:17:01 1:18 1:38:06 4:23:45
54 Bib 84 US FPRO 14 29:34 1:22 2:26:05 1:15 1:25:32 4:23:50
55 Bib 1573 US M25-29 4 30:56 1:31 2:18:16 1:16 1:32:25 4:24:24
56 Bib 81 US FPRO 15 33:12 1:58 2:21:44 1:14 1:27:25 4:25:33
57 Bib 1413 CH M45-49 3 30:24 2:16 2:22:45 1:34 1:29:35 4:26:34
58 Bib 323 US M40-44 2 32:07 3:04 2:17:30 2:11 1:31:48 4:26:40
59 Bib 1530 US M35-39 4 32:41 2:22 2:23:19 1:36 1:27:22 4:27:20
60 Bib 20 CA MPRO 27 26:03 1:28 2:22:38 2:07 1:35:19 4:27:36
61 Bib 224 US M40-44 3 30:21 2:50 2:16:42 1:49 1:36:51 4:28:33
62 Bib 558 US M40-44 4 31:11 2:36 2:21:12 2:02 1:32:29 4:29:30
63 Bib 62 US FPRO 16 27:45 2:00 2:23:17 1:37 1:35:21 4:30:00
64 Bib 1540 US M25-29 5 31:38 1:46 2:20:25 1:20 1:35:01 4:30:09
65 Bib 1234 US M30-34 4 33:09 3:47 2:23:12 2:33 1:27:32 4:30:13
66 Bib 1339 US M35-39 5 36:36 2:39 2:20:37 1:55 1:28:27 4:30:14
67 Bib 36 US MPRO 28 26:11 1:17 2:11:31 2:23 1:49:09 4:30:31
68 Bib 68 US FPRO 17 33:41 2:01 2:19:40 1:15 1:34:48 4:31:24
69 Bib 666 US M45-49 4 33:11 1:46 2:20:30 1:37 1:34:30 4:31:34
70 Bib 1246 US M25-29 6 32:40 1:57 2:22:13 1:27 1:33:35 4:31:52
71 Bib 445 US M50-54 1 33:28 1:44 2:24:23 1:19 1:32:23 4:33:16
72 Bib 241 BE M40-44 5 36:11 3:00 2:22:10 3:19 1:29:06 4:33:46
73 Bib 1026 US M45-49 5 27:39 4:25 2:25:27 2:57 1:34:02 4:34:30
74 Bib 576 US M45-49 6 37:32 2:31 2:21:54 2:24 1:30:37 4:34:58
75 Bib 1105 US F30-34 1 27:00 1:49 2:33:02 1:13 1:32:00 4:35:04
76 Bib 1320 US M40-44 6 33:59 3:09 2:18:01 1:33 1:39:44 4:36:26
77 Bib 72 US FPRO 18 33:44 1:25 2:30:05 1:19 1:31:20 4:37:53
78 Bib 66 US FPRO 19 30:55 2:38 2:25:22 1:58 1:37:15 4:38:08
79 Bib 1065 US M35-39 6 33:40 3:08 2:23:32 2:57 1:35:21 4:38:38
79 Bib 1265 GB M30-34 5 34:01 2:54 2:16:11 1:46 1:43:46 4:38:38
81 Bib 1566 US M30-34 6 36:40 2:07 2:24:12 1:31 1:34:56 4:39:26
82 Bib 1406 CH F40-44 1 34:48 3:30 2:27:24 1:55 1:31:51 4:39:28
83 Bib 1157 US M40-44 7 29:43 2:10 2:23:22 1:16 1:43:08 4:39:39
84 Bib 1202 US M35-39 7 33:47 3:00 2:21:52 1:47 1:39:32 4:39:59
85 Bib 1470 US M50-54 2 32:23 2:06 2:23:24 1:42 1:40:43 4:40:19
86 Bib 1608 US M35-39 8 29:42 2:02 2:23:05 1:52 1:44:01 4:40:43
87 Bib 1027 US M50-54 3 31:00 2:04 2:25:46 1:41 1:40:22 4:40:53
88 Bib 74 AR FPRO 20 28:59 1:22 2:31:42 1:27 1:37:35 4:41:05
89 Bib 425 US M40-44 8 34:59 1:42 2:23:58 1:51 1:38:39 4:41:08
90 Bib 408 US M30-34 7 25:25 2:27 2:30:32 1:31 1:41:54 4:41:50
91 Bib 358 US M40-44 9 33:58 3:11 2:28:49 1:49 1:34:09 4:41:56
92 Bib 660 US M35-39 9 33:02 1:47 2:28:18 2:03 1:37:06 4:42:16
93 Bib 1100 US M35-39 10 35:01 3:01 2:29:29 1:31 1:33:17 4:42:19
94 Bib 1123 MX F30-34 2 33:05 2:08 2:24:01 1:26 1:41:54 4:42:34
95 Bib 477 GB M50-54 4 25:29 2:50 2:30:19 1:54 1:42:04 4:42:35
96 Bib 1490 US M18-24 3 26:26 2:58 2:31:32 2:31 1:39:27 4:42:54
97 Bib 487 US M35-39 11 31:44 2:21 2:28:25 1:25 1:39:17 4:43:12
98 Bib 784 US M55-59 1 33:00 2:33 2:30:36 2:17 1:35:01 4:43:27
99 Bib 38 US MPRO 29 34:37 2:08 2:22:09 2:18 1:42:30 4:43:43
100 Bib 1383 US M35-39 12 33:13 2:12 2:28:44 1:15 1:38:21 4:43:45

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