| Event: | Mixed relay |
| Games: | 2010 Summer Youth |
| Venue: | East Coast Park |
| Dates: | 19 August 2010 |
| Competitors: | 60 |
| Nations: | 41 |
| Gold: | Europe 1 |
| Goldnoc: | MIX |
| Silver: | Oceania 1 |
| Silvernoc: | MIX |
| Bronze: | Americas 1 |
| Bronzenoc: | MIX |
| Next: | 2014 |
4× Mixed Relay Triathlon was part of the triathlon at the 2010 Summer Youth Olympics programme. The event consisted of a relay with each athlete performing 250m (820feet) of swimming, 7km (04miles) of cycling, and 1.7km (01.1miles) of running. It was held on 19 August 2010 at East Coast Park. The teams were made based on the results of the boys' and girls' triathlon event held of August 15–16, 2010. Each team had two boys and two girls and were split by continent. A total of 15 teams raced in the event.
| Europe 1 | Oceania 1 | Americas 1 |
The race began at approximately 9:00 a.m. (UTC+8) on 19 August at East Coast Park.
| Rank[1] | Start No. | Team | Triathletes | Individual Time | Total time | Difference | |
|---|---|---|---|---|---|---|---|
| 1 | Europe 1 | 20:46 18.58 21:11 18:56 | 1:19:51.42 | ±0:00.00 | |||
| 3 | Oceania 1 | 20:36 19:07 21:11 19:01 | 1:19:55.23 | +0:03.81 | |||
| 2 | Americas 1 | 20:22 18:29 21:44 19:23 | 1:19:58.88 | +0:07.46 | |||
| 4 | 4 | Europe 2 | 20:53 19:47 21:54 19:37 | 1:22:11.38 | +2:19.96 | ||
| 5 | 6 | Americas 2 | 20:21 18:47 23:07 20:15 | 1:22:30.15 | +2:38.73 | ||
| 6 | 5 | Europe 3 | 21:05 19:29 22:14 20:01 | 1:22:49.66 | +2:58.24 | ||
| 7 | 7 | Europe 4 | 21:11 19:08 22:04 20:31 | 1:22:54.12 | +3:02.70 | ||
| 8 | 9 | Asia 1 | 20:16 20:06 22:19 20:39 | 1:23:20.88 | +3:29.46 | ||
| 9 | 8 | World Team 1 | 21:23 19:07 23:11 19:56 | 1:23:37.79 | +3:46.37 | ||
| 10 | 10 | Europe 5 | 20:48 19:26 23:05 20:30 | 1:23:49.96 | +3:58.54 | ||
| 11 | 11 | Americas 3 | 22:30 19:53 23:32 20:39 | 1:26:34.25 | +6:42.83 | ||
| 12 | 15 | World Team 2 | 22:55 19:36 23:40 21:23 | 1:27:34.96 | +7:43.54 | ||
| 13 | 12 | Asia 2 | 22:55 20:43 23:54 20:08 | 1:27:40.62 | +7:49.20 | ||
| 14 | 14 | Americas 4 | 23:17 20:44 23:30 20:21 | 1:27:52.84 | +8:01.42 | ||
| 15 | 16 | Asia 3 | 25:14 21:02 25:50 22:22 | 1:34:28.69 | +14:37.27 |