Western Australia closed the books on the 2012 Ironman races. Race conditions were quote good (adjustment of 15:53 leading to a new course rating of 12:44), even if the day started with a relatively slow swim in choppy conditions and ended with a hot run.
Male Race Results
Jimmy Johnsen from Denmark was the athlete who played his cards best: He was close to the front all day, then took the lead for good after 30k on the run and posted the best marathon time:
| Rank | Name | Nation | Swim | Bike | Run | Actual Time | Expected Time |
| 1 | Jimmy Johnsen | DNK | 00:51:51 | 04:38:38 | 02:54:42 | 08:29:06 | 08:27:31 |
| 2 | Horst Reichel | GER | 00:48:50 | 04:39:52 | 03:01:50 | 08:34:49 | 08:53:31 |
| 3 | Matty White | AUS | 00:51:49 | 04:38:29 | 03:03:57 | 08:38:05 | 08:35:42 |
| 4 | Jason Shortis | AUS | 00:53:56 | 04:42:11 | 02:58:19 | 08:38:30 | 08:43:05 |
| 5 | Petr Vabrousek | CZE | 00:54:02 | 04:42:10 | 03:01:37 | 08:41:47 | 08:39:28 |
| 6 | Johan Borg | AUS | 00:57:08 | 04:38:53 | 03:03:45 | 08:43:55 | 09:15:38 |
| 7 | Ben Cotter | CAN | 01:00:59 | 04:35:45 | 03:07:52 | 08:48:45 | 09:08:24 |
| 8 | Simon Billeau | FRA | 00:54:03 | 04:34:30 | 03:18:55 | 08:51:18 | 08:42:21 |
| 9 | Adam Gordon | NZL | 00:53:55 | 04:47:35 | 03:09:05 | 08:54:33 | n/a |
| 10 | Karol Dzalaj | SVK | 00:54:05 | 04:36:03 | 03:20:35 | 08:55:11 | 09:10:39 |
| 11 | Simon Cochrane | NZL | 00:53:39 | 04:51:52 | 03:08:54 | 08:58:27 | 08:56:06 |
| 12 | Joshua Rix | AUS | 00:51:41 | 04:38:30 | 03:25:09 | 09:00:27 | 08:53:24 |
| 13 | Mitchell Anderson | AUS | 00:53:53 | 04:30:40 | 03:38:28 | 09:07:13 | 08:35:52 |
| 14 | Hirotsugu Kuwabara | JAP | 00:53:52 | 05:02:54 | 03:26:12 | 09:27:52 | 10:07:21 |
| 15 | Jon Woods | NZL | 00:57:12 | 04:56:19 | 03:52:27 | 09:50:18 | n/a |
| 16 | Kodo Hiramatsu | JPN | 00:53:59 | 05:30:23 | 03:23:56 | 09:54:28 | n/a |
| 17 | Yu Shinozaki | JPN | 00:57:14 | 04:59:38 | 05:19:23 | 11:24:18 | 09:48:19 |
Race favorite Timo Bracht is not listed, details are still a bit sketchy, here is what I was able to find: He had two flats on the bike, then took a new wheel from a tech support station and was apparently disqualified for outside assistance.
Female Race Results
As on the men’s side, pre-race favorite Rebekah Keat wasn’t able to win the race, but at least she finished a respectable second after Britta Martin, who also used the race-best marathon to win the race:
| Rank | Name | Nation | Swim | Bike | Run | Actual Time | Expected Time |
| 1 | Britta Martin | NZL | 01:02:13 | 05:00:11 | 03:06:10 | 09:13:00 | 09:24:34 |
| 2 | Rebekah Keat | AUS | 00:53:58 | 05:03:44 | 03:11:57 | 09:14:39 | 09:09:06 |
| 3 | Rebecca Hoschke | AUS | 01:02:44 | 05:03:28 | 03:09:26 | 09:19:48 | 09:35:47 |
| 4 | Bree Wee | USA | 00:54:04 | 04:58:59 | 03:26:59 | 09:24:40 | 09:37:11 |
| 5 | Mirjam Weerd | NLD | 00:54:02 | 05:02:14 | 03:24:12 | 09:25:48 | 09:24:08 |
| 6 | Nicole Ward | AUS | 00:54:03 | 05:22:03 | 03:23:13 | 09:43:29 | 09:44:44 |
| 7 | Megumi Shigaki | JPN | 00:58:17 | 05:22:02 | 03:33:57 | 09:58:58 | 11:39:57 |
| 8 | Joanna Carritt | GBR | 01:08:44 | 05:11:48 | 03:43:41 | 10:09:14 | 10:03:56 |
| 9 | Dana Wagner | GER | 01:04:18 | 05:26:39 | 05:42:42 | 12:20:42 | 09:43:06 |