Previous Winners
| Year | Male Winner | Time | Female Winner | Time |
| 2013 | Martin Jensen (DEN) | 08:47:53 | Shiao-yu Li (TWN) | 10:12:42 |
| 2014 | Michael Ruenz (GER) | 08:53:40 | Shiao-yu Li (TWN) | 09:58:30 |
Last Year’s TOP 3
Male Race Results
| Rank | Name | Nation | Swim | Bike | Run | Time |
| 1 | Michael Ruenz | GER | 00:54:22 | 05:01:23 | 02:52:36 | 08:53:40 |
| 2 | Harry Wiltshire | GBR | 00:49:23 | 05:04:26 | 03:08:17 | 09:06:34 |
| 3 | Cedric Lassonde | FRA | 00:54:24 | 05:01:00 | 03:06:40 | 09:07:44 |
Female Race Results
| Rank | Name | Nation | Swim | Bike | Run | Time |
| 1 | Shiao-yu Li | TWN | 01:04:34 | 05:31:05 | 03:17:05 | 09:58:30 |
| 2 | Jessica Fleming | AUS | 01:00:19 | 05:33:54 | 03:26:32 | 10:06:49 |
| 3 | Keiko Tanaka | JPN | 00:56:42 | 05:44:39 | 03:22:43 | 10:09:24 |
Course Records
| Leg | Gender | Record | Athlete | Date |
| Total | overall | 08:47:53 | Martin Jensen | 2013-08-31 |
| Swim | overall | 00:49:20 | Kuniaki Takahama | 2014-08-24 |
| Bike | overall | 04:40:07 | Timothy Beardall | 2014-08-24 |
| Run | overall | 02:52:36 | Michael Ruenz | 2014-08-24 |
| Total | female | 09:58:30 | Shiao-yu Li | 2014-08-24 |
| Swim | female | 00:56:42 | Keiko Tanaka | 2014-08-24 |
| Bike | female | 05:31:05 | Shiao-yu Li | 2014-08-24 |
| Run | female | 03:13:20 | Shiao-yu Li | 2013-08-31 |
Course Rating
The Course Rating for IM Japan is – 15:17.
Race Adjustments for IM Japan
| Year | Adjustment | Swim Adj. | Bike Adj. | Run Adj. | # of Athletes | Rating | Swim Rating | Bike Rating | Run Rating |
| 2013 | -14:53 | -00:23 | -19:38 | -07:52 | 11 | -14:53 | -00:23 | -19:38 | -07:52 |
| 2014 | -15:42 | -01:08 | -15:49 | 01:10 | 16 | -15:17 | -00:46 | -17:44 | -03:21 |
KPR points and Prize Money
IM Japan is a P-2000 race. It has a total prize purse of 25.000 US$.
Male Race Participants
| Rank | Bib | Name | Nation | Expected Time | Rating | Exp. Swim | Exp. Bike | Exp. Run | Overall |
| 1 | 7 | Guilherme Manocchio | BRA | 08:59:14 | 08:52:43 | 00:50:04 | 05:00:36 | 03:03:34 | 100 |
| 2 | 13 | Swen Sundberg | GER | 09:11:25 | 08:52:39 | 00:52:58 | 05:02:36 | 03:10:51 | 99 |
| 3 | 2 | Nick Baldwin | SEY | 09:13:12 | 08:58:13 | 00:53:17 | 05:05:42 | 03:09:13 | 122 |
| 4 | 1 | Patrick Evoe | USA | 09:14:33 | 08:57:29 | 00:56:38 | 05:03:15 | 03:09:40 | 119 |
| 5 | 11 | Thiago Vinhal | BRA | 09:18:52 | 09:04:52 | 00:49:18 | 05:25:32 | 02:59:02 | 151 |
| 6 | 4 | Simon Cochrane | NZL | 09:20:56 | 09:08:44 | 00:52:12 | 05:13:43 | 03:10:02 | 168 |
| 7 | 6 | Yu Shinozaki | JPN | 09:27:16 | 10:07:51 | 00:56:12 | 04:59:58 | 03:26:06 | 404 |
| 8 | 9 | Daiki Masuda | JPN | 09:37:43 | 09:54:00 | 00:55:05 | 05:17:54 | 03:19:44 | 355 |
| 9 | 10 | Yeun Sik Ham | KOR | 09:45:03 | 09:38:39 | 01:08:04 | 05:22:34 | 03:09:25 | (299) |
| 10 | 12 | Daniel Brown | AUS | 11:09:44 | 11:04:23 | 01:04:46 | 05:53:44 | 04:06:14 | (486) |
| 5 | Colin O’Brady | USA | n/a | unrated | unrated | unrated | unrated | (n/a) | |
| 8 | Xavier Nunez | ESP | n/a | unrated | unrated | unrated | unrated | (n/a) |
Female Race Participants
| Rank | Bib | Name | Nation | Expected Time | Rating | Exp. Swim | Exp. Bike | Exp. Run | Overall |
| 1 | 24 | Bree Wee | USA | 09:58:18 | 09:47:21 | 00:54:23 | 05:35:15 | 03:23:40 | 61 |
| 2 | 31 | Lisa Marangon | AUS | 10:03:03 | 10:02:20 | 00:54:16 | 05:28:40 | 03:35:07 | (94) |
| 3 | 21 | Shiao-yu Li | TWN | 10:08:00 | 10:03:51 | 01:06:44 | 05:38:37 | 03:17:39 | 99 |
| 4 | 33 | Keiko Tanaka | JPN | 10:11:06 | 10:12:17 | 00:55:36 | 05:44:07 | 03:26:23 | 116 |
| 5 | 27 | Michelle Duffield | AUS | 10:24:12 | 10:08:09 | 01:01:30 | 05:45:17 | 03:32:26 | 112 |
| 6 | 22 | Emi Sakai | JPN | 10:31:17 | 10:22:32 | 01:06:14 | 05:40:48 | 03:39:15 | 147 |
| 7 | 29 | Marina Jurjevic | AUS | 10:33:11 | 10:34:24 | 01:04:52 | 05:30:08 | 03:53:12 | (165) |
| 8 | 23 | Stef Puszka | AUS | 10:59:19 | 10:54:03 | 01:05:06 | 06:08:59 | 03:40:14 | (176) |
| 25 | Sandra Fantini | FRA | n/a | unrated | unrated | unrated | unrated | (n/a) | |
| 26 | Mami Ishii | JPN | n/a | unrated | unrated | unrated | unrated | (n/a) | |
| 32 | Kathryn Haesner | NZL | n/a | unrated | unrated | unrated | unrated | (n/a) |
Winning Odds
Male Race Participants
- Guilherme Manocchio: 51% (1-1)
- Swen Sundberg: 14% (6-1)
- Patrick Evoe: 12% (7-1)
- Nick Baldwin: 11% (8-1)
- Simon Cochrane: 5% (19-1)
- Thiago Vinhal: 5% (20-1)
- Yu Shinozaki: 2% (52-1)
Female Race Participants
- Bree Wee: 41% (1-1)
- Lisa Marangon: 30% (2-1)
- Shiao-yu Li: 15% (6-1)
- Keiko Tanaka: 14% (6-1)