# Swimming at the 2014 Summer Youth Olympics – Mixed 4 × 100 metre medley relay

The mixed 4 × 100 metre medley relay event in swimming at the 2014 Summer Youth Olympics took place on 22 August at the Nanjing Olympic Sports Centre in Nanjing, China.

## Results
### Heats

The heats were held at 11:06.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 1 | Qiu Yuhan (1:02.93) Zhang Zhihao (1:02.85) Li Zhuhao (53.46) Shen Duo (54.77) | China | 3:54.01 | Q |
| 2 | 3 | 8 | Irina Prikhodko (1:02.91) Anton Chupkov (1:01.85) Aleksandr Sadovnikov (53.89) Daria S. Ustinova (56.06) | Russia | 3:54.71 | Q |
| 3 | 3 | 4 | Amy Forrester (1:02.89) Grayson Bell (1:02.82) Brianna Throssell (59.59) Kyle Chalmers (50.04) | Australia | 3:55.34 | Q |
| 4 | 1 | 4 | Nathania van Niekerk (1:04.41) Jarred Crous (1:01.74) Joshua Steyn (54.14) Marlies Ross (57.15) | South Africa | 3:57.44 | Q |
| 5 | 3 | 6 | Luke Greenbank (56.85) Georgina Evans (1:09.43) Charlotte Atkinson (1:01.99) Miles Munro (50.53) | Great Britain | 3:58.80 | Q |
| 6 | 1 | 5 | Laura Yus (1:02.90) Gonzalo Carazo (1:04.16) Guillermo Sánchez (55.99) África Zamorano (55.90) | Spain | 3:58.95 | Q |
| 7 | 2 | 4 | Natalia de Luccas (1:02.81) Andreas Mickosz (1:03.57) Giovanna Diamante (1:01.71) Matheus Santana (51.82) | Brazil | 3:59.91 | Q |
| 8 | 2 | 5 | Tereza Grusová (1:03.05) Vojtěch Simbartl (1:04.93) Lucie Svěcená (1:00.22) Petr Novak (52.07) | Czech Republic | 4:00.27 | Q |
| 9 | 3 | 2 | Koki Tsunefuka (59.17) Ippei Watanabe (1:01.38) Jurina Shiga (1:01.23) Rina Yoshimura (58.95) | Japan | 4:00.73 | |
| 10 | 2 | 7 | Armin Porobic (56.46) Sofie Reisænen (1:13.31) Elise Olsen (59.67) Henrik Christiansen (51.81) | Norway | 4:01.25 | |
| 11 | 1 | 6 | Patrick Conaton (57.11) Meghan Small (1:12.27) Justin Wright (55.40) Clara Smiddy (56.49) | United States | 4:01.27 | |
| 12 | 2 | 2 | Laurent Bams (56.81) Kim Busch (1:13.67) Mathys Goosen (54.44) Esmee Bos (57.24) | Netherlands | 4:02.16 | |
| 13 | 2 | 1 | Song Suk-gyu (59.02) Yang Ji-won (1:10.87) Park Jin-young (59.90) Kim Jae-youn (53.20) | South Korea | 4:02.99 | |
| 14 | 1 | 3 | Petter Fredriksson (57.79) Sophie Hansson (1:11.07) Jaqueline Hippi (1:03.07) Isak Eliasson (51.16) | Sweden | 4:03.09 | |
| 15 | 3 | 7 | Bobbi Gichard (1:03.33) Jacob Garrod (1:04.09) Michael Mincham (57.70) Gabrielle Fa'amausili (58.40) | New Zealand | 4:03.52 | |
| 16 | 3 | 5 | Danielle Hanus (1:03.52) Kelsey Wog (1:13.56) Colin Gilbert (57.50) Javier Acevedo (50.48) | Canada | 4:05.06 | |
| 17 | 2 | 8 | Žan Pogačar (57.22) Tjaša Pintar (1:14.31) Nastja Govejšek (1:01.30) Grega Popović (53.49) | Slovenia | 4:06.32 | |
| 18 | 2 | 6 | Lau Shiu Yue (59.78) Sutton Choi (1:08.27) Siobhán Haughey (1:02.62) Jamie Yeung (59.36) | Hong Kong | 4:10.03 | |
| | 2 | 3 | Pauline Mahieu (1:05.68) Jean Dencausse (1:04.06) Camille Wishaupt Guillaume Laure | France | DSQ | |
| | 3 | 3 | Carita Luukkanen (1:06.74) Jakob Nordman Adam Vik Silja Känsäkoski | Finland | DSQ | |

### Final

The final was held at 19:29.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Li Guangyuan (54.81) He Yun (1:07.54) Zhang Yufei (58.28) Yu Hexin (48.70) | China | 3:49.33 | |
| | 5 | Irina Prikhodko (1:02.39) Anton Chupkov (1:00.86) Aleksandr Sadovnikov (52.69) Daria S. Ustinova (54.92) | Russia | 3:50.86 | |
| | 3 | Amy Forrester (1:02.11) Grayson Bell (1:02.52) Nicholas Brown (53.32) Ami Matsuo (54.50) | Australia | 3:52.45 | |
| 4 | 1 | Natalia de Luccas (1:02.20) Andreas Mickosz (1:02.57) Giovanna Diamante (1:00.92) Matheus Santana (48.24) | Brazil | 3:53.93 | |
| 5 | 6 | Nathania van Niekerk (1:03.18) Jarred Crous (1:01.13) Joshua Steyn (53.87) Marlies Ross (56.68) | South Africa | 3:54.86 | AF |
| 6 | 2 | Luke Greenbank (56.78) Georgina Evans (1:10.57) Charlotte Atkinson (1:01.34) Duncan Scott (49.63) | Great Britain | 3:58.32 | |
| 7 | 8 | Tereza Grusová (1:02.34) Vojtěch Simbartl (1:05.35) Lucie Svěcená (59.82) Petr Novak (52.12) | Czech Republic | 3:59.63 | |
| 8 | 7 | Laura Yus (1:03.51) Gonzalo Carazo (1:04.20) Juan Marín (55.90) África Zamorano (56.10) | Spain | 3:59.71 | |