| Date | 7 October 2018 |
|---|---|
| Status | YOG |
| Location | Natatorium, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires |
| Participants | 86 from 20 countries |
| Date | 7 October 2018 — 11:27 |
|---|---|
| Format | Top 8 advance to the final round. |
| Time | 11:27 |
|---|
| Pos | Competitors | NOC | Time | ||
|---|---|---|---|---|---|
| 1 | Brazil | BRA | 3:30.92 | ||
| Lucas Costa Peixoto | 50.20 | ||||
| Ana Vieira | 55.91 | ||||
| André de Souza | 49.64 | ||||
| Rafaela Raurich | 55.17 | ||||
| 2 | Japan | JPN | 3:35.95 | ||
| Shinnosuke Ishikawa | 52.09 | ||||
| Nagisa Ikemoto | 54.52 | ||||
| Mayuka Yamamoto | 55.39 | ||||
| Taku Taniguchi | 53.95 | ||||
| 3 | Poland | POL | 3:36.69 | ||
| Jakub Kraska | 50.08 | ||||
| Jakub Majerski | 50.19 | ||||
| Kornelia Fiedkiewicz | 57.39 | ||||
| Karolina Jurczyk | 59.03 | ||||
| 4 | Republic of Korea | KOR | 3:42.89 | ||
| Park Jeong-Hun | 52.60 | ||||
| Lee Yu-Yeon | 49.71 | ||||
| Wang Hui-Song | 1:00.35 | ||||
| Yun Eun-Sol | 1:00.23 |
| Pos | Competitors | NOC | Time | ||
|---|---|---|---|---|---|
| 1 | Australia | AUS | 3:34.48 | ||
| Ashton Brinkworth | 50.36 | ||||
| Joseph Jackson | 51.43 | ||||
| Michaela Ryan | 56.18 | ||||
| Abbey Webb | 56.51 | ||||
| 2 | Russian Federation | RUS | 3:36.98 | ||
| Daniil Markov | 50.28 | ||||
| Vladislav Gerasimenko | 51.83 | ||||
| Darya Vaskina | 57.20 | ||||
| Anastasiya Makarova | 57.67 | ||||
| 3 | Canada | CAN | 3:39.29 | ||
| Josh Liendo | 52.23 | ||||
| Finlay Knox | 52.61 | ||||
| Kyla Leibel | 55.08 | ||||
| Nina Kucheran | 59.37 | ||||
| 4 | Hong Kong, China | HKG | 3:42.09 | ||
| Tinky Ho | 57.75 | ||||
| Marcus Mok | 53.37 | ||||
| Nicholas Owen Lim | 52.37 | ||||
| Natalie Kan | 58.60 | ||||
| 5 | Spain | ESP | 3:43.15 | ||
| Marcos Gil | 53.36 | ||||
| Ferran Julià | 53.23 | ||||
| Tamara Frías | 57.83 | ||||
| Andrea Galisteo | 58.73 | ||||
| 6 | United States | USA | 3:43.68 | ||
| Will Barao | 52.95 | ||||
| Ethan Dang | 52.84 | ||||
| Maddie Donohoe | 58.72 | ||||
| Kate Douglass | 59.17 | ||||
| 7 | Mexico | MEX | 3:45.93 | ||
| Andrés Puente | 54.80 | ||||
| Taydé Sansores | 59.78 | ||||
| Miriam Guevara | 1:00.67 | ||||
| Guillermo Cruz | 50.68 | ||||
| 8 | Chile | CHI | 3:51.56 | ||
| Martín Valdivieso | 55.31 | ||||
| Inés Marín | 59.21 | ||||
| Trinidad Ardiles | 1:03.77 | ||||
| Benjamín Schnapp | 53.27 |
| Pos | Competitors | NOC | Time | ||
|---|---|---|---|---|---|
| 1 | Israel | ISR | 3:33.57 | ||
| Denis Loktev | 50.48 | ||||
| Gal Cohen Groumi | 50.88 | ||||
| Anastasia Gorbenko | 55.38 | ||||
| Lea Polonsky | 56.83 | ||||
| 2 | People's Republic of China | CHN | 3:33.76 | ||
| Shen Jiahao | 51.01 | ||||
| Hong Jinquan | 50.61 | ||||
| Lin Xintong | 56.58 | ||||
| Yang Junxuan | 55.56 | ||||
| 3 | Germany | GER | 3:34.09 | ||
| Rafael Miroslaw | 50.27 | ||||
| Luca Armbruster | 51.41 | ||||
| Angelina Köhler | 56.75 | ||||
| Julia Mrozinski | 55.66 | ||||
| 4 | New Zealand | NZL | 3:37.52 | ||
| Michael Pickett | 50.77 | ||||
| Erika Fairweather | 56.53 | ||||
| Gina Galloway | 58.90 | ||||
| Zac Reid | 51.32 | ||||
| 5 | Switzerland | SUI | 3:38.48 | ||
| Antonio Djakovic | 50.77 | ||||
| Noè Ponti | 50.85 | ||||
| Leoni Richter | 57.30 | ||||
| Elena Onieva Henrich | 59.56 | ||||
| 6 | Singapore | SGP | 3:41.47 | ||
| Ong Jung Yi | 53.41 | ||||
| Maximillian Ang | 53.03 | ||||
| Gan Ching Hwee | 58.59 | ||||
| Christie May Chue | 56.44 | ||||
| 7 | South Africa | RSA | 3:41.96 | ||
| Gabriel Nortje | 51.60 | ||||
| Hendrik Duvenhage | 53.13 | ||||
| Duné Coetzee | 57.95 | ||||
| Kate Beavon | 59.28 | ||||
| 8 | Argentina | ARG | 3:42.88 | ||
| Joaquín González | 53.37 | ||||
| Juan Méndez | 54.51 | ||||
| Julieta Lema | 55.82 | ||||
| Delfina Dini | 59.18 |
| Date | 7 October 2018 — 18:51 |
|---|
| Pos | Competitors | NOC | Time | |||||
|---|---|---|---|---|---|---|---|---|
| 1 | Russian Federation | RUS | 3:28.50 | |||||
| Kliment Kolesnikov • Andrey Minakov • Polina Yegorova • Yelizaveta Klevanovich | ||||||||
| 2 | Brazil | BRA | 3:30.13 | |||||
| Lucas Costa Peixoto • Ana Vieira • André de Souza • Rafaela Raurich | ||||||||
| 3 | People's Republic of China | CHN | 3:30.45 | |||||
| Shen Jiahao • Hong Jinquan • Lin Xintong • Yang Junxuan | ||||||||
| 4 | Germany | GER | 3:33.03 | |||||
| Rafael Miroslaw • Luca Armbruster • Angelina Köhler • Julia Mrozinski | ||||||||
| 5 | Poland | POL | 3:33.08 | |||||
| Jakub Kraska • Jakub Majerski • Kornelia Fiedkiewicz • Aleksandra Knop | ||||||||
| 6 | Australia | AUS | 3:34.03 | |||||
| Ashton Brinkworth • Joseph Jackson • Michaela Ryan • Abbey Webb | ||||||||
| 7 | Japan | JPN | 3:34.18 | |||||
| Keisuke Yoshida • Taku Taniguchi • Mayuka Yamamoto • Nagisa Ikemoto | ||||||||
| Israel | ISR | – | ||||||
| Denis Loktev • Gal Cohen Groumi • Lea Polonsky • Anastasia Gorbenko | ||||||||