| | Event type

4 × 100 metres Freestyle Relay, Mixed Youth

Date	7 October 2018
Status	YOG
Location	Natatorium, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires
Participants	86 from 20 countries

Pos	Swimmer	NOC	R1	Final
1	Russian Federation	RUS	3:36.98 (2 h2)	3:28.50 (1)	Gold
	Kliment Kolesnikov • Andrey Minakov • Polina Yegorova • Yelizaveta Klevanovich • Daniil Markov • Vladislav Gerasimenko • Darya Vaskina • Anastasiya Makarova
2	Brazil	BRA	3:30.92 (1 h1)	3:30.13 (2)	Silver
	Lucas Costa Peixoto • Ana Vieira • André de Souza • Rafaela Raurich
3	People's Republic of China	CHN	3:33.76 (2 h3)	3:30.45 (3)	Bronze
	Shen Jiahao • Hong Jinquan • Lin Xintong • Yang Junxuan
4	Germany	GER	3:34.09 (3 h3)	3:33.03 (4)
	Rafael Miroslaw • Luca Armbruster • Angelina Köhler • Julia Mrozinski
5	Poland	POL	3:36.69 (3 h1)	3:33.08 (5)
	Jakub Kraska • Jakub Majerski • Kornelia Fiedkiewicz • Aleksandra Knop • Karolina Jurczyk
6	Australia	AUS	3:34.48 (1 h2)	3:34.03 (6)
	Ashton Brinkworth • Joseph Jackson • Michaela Ryan • Abbey Webb
7	Japan	JPN	3:35.95 (2 h1)	3:34.18 (7)
	Keisuke Yoshida • Taku Taniguchi • Mayuka Yamamoto • Nagisa Ikemoto • Shinnosuke Ishikawa
AC r2/2	Israel	ISR	3:33.57 (1 h3)	– (DQ)
	Denis Loktev • Gal Cohen Groumi • Lea Polonsky • Anastasia Gorbenko
9	New Zealand	NZL	3:37.52 (4 h3)	–
	Michael Pickett • Erika Fairweather • Gina Galloway • Zac Reid
10	Switzerland	SUI	3:38.48 (5 h3)	–
	Antonio Djakovic • Noè Ponti • Leoni Richter • Elena Onieva Henrich
11	Canada	CAN	3:39.29 (3 h2)	–
	Joshua Liendo • Finlay Knox • Kyla Leibel • Nina Kucheran
12	Singapore	SGP	3:41.47 (6 h3)	–
	Ong Jung Yi • Maximillian Ang • Gan Ching Hwee • Christie May Chue
13	South Africa	RSA	3:41.96 (7 h3)	–
	Gabriel Nortje • Hendrik Duvenhage • Duné Coetzee • Kate Beavon
14	Hong Kong, China	HKG	3:42.09 (4 h2)	–
	Tinky Ho • Marcus Mok • Nicholas Owen Lim • Natalie Kan
15	Argentina	ARG	3:42.88 (8 h3)	–
	Joaquín González • Juan Méndez • Julieta Lema • Delfina Dini
16	Republic of Korea	KOR	3:42.89 (4 h1)	–
	Park Jeong-Hun • Lee Yu-Yeon • Wang Hui-Song • Yun Eun-Sol
17	Spain	ESP	3:43.15 (5 h2)	–
	Marcos Gil • Ferran Juliá • Tamara Frías • Andrea Galisteo
18	United States	USA	3:43.68 (6 h2)	–
	Will Barao • Ethan Dang • Maddie Donohoe • Kate Douglass
19	Mexico	MEX	3:45.93 (7 h2)	–
	Andrés Puente • Taydé Sansores • Miriam Guevara • Guillermo Cruz
20	Chile	CHI	3:51.56 (8 h2)	–
	Martín Valdivieso • Inés Marín • Trinidad Ardiles • Benjamín Schnapp

Round One (7 October 2018 — 11:27)

Top 8 advance to the final round.

Heat One (11:27)

Pos	Lane	Swimmer	NOC	Time	Exchange (Pos)
1	–	Brazil	BRA		3:30.92	Q
		Lucas Costa Peixoto		50.20	– (–)
		Ana Vieira		55.91	– (–)
		André de Souza		49.64	– (–)
		Rafaela Raurich		55.17	– (–)
2	–	Japan	JPN		3:35.95	Q
		Shinnosuke Ishikawa		52.09	– (–)
		Nagisa Ikemoto		54.52	– (–)
		Mayuka Yamamoto		55.39	– (–)
		Taku Taniguchi		53.95	– (–)
3	–	Poland	POL		3:36.69	Q
		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	– (–)

Heat Two

Pos	Lane	Swimmer	NOC	Time	Exchange (Pos)
1	–	Australia	AUS		3:34.48	Q
		Ashton Brinkworth		50.36	– (–)
		Joseph Jackson		51.43	– (–)
		Michaela Ryan		56.18	– (–)
		Abbey Webb		56.51	– (–)
2	–	Russian Federation	RUS		3:36.98	Q
		Daniil Markov		50.28	– (–)
		Vladislav Gerasimenko		51.83	– (–)
		Darya Vaskina		57.20	– (–)
		Anastasiya Makarova		57.67	– (–)
3	–	Canada	CAN		3:39.29
		Joshua 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 Juliá		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	– (–)

Heat Three

Pos	Lane	Swimmer	NOC	Time	Exchange (Pos)
1	–	Israel	ISR		3:33.57	Q
		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	Q
		Shen Jiahao		51.01	– (–)
		Hong Jinquan		50.61	– (–)
		Lin Xintong		56.58	– (–)
		Yang Junxuan		55.56	– (–)
3	–	Germany	GER		3:34.09	Q
		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	– (–)

Final Round (7 October 2018 — 18:51)

Pos	Lane	Swimmer	NOC	Time	Exchange (Pos)
1	–	Russian Federation	RUS		3:28.50
		Kliment Kolesnikov		48.17	– (–)
		Andrey Minakov		49.60	– (–)
		Polina Yegorova		55.71	– (–)
		Yelizaveta Klevanovich		55.02	– (–)
2	–	Brazil	BRA		3:30.13
		Lucas Costa Peixoto		50.30	– (–)
		Ana Vieira		55.93	– (–)
		André de Souza		48.66	– (–)
		Rafaela Raurich		55.24	– (–)
3	–	People's Republic of China	CHN		3:30.45
		Shen Jiahao		50.83	– (–)
		Hong Jinquan		50.46	– (–)
		Lin Xintong		55.44	– (–)
		Yang Junxuan		53.72	– (–)
4	–	Germany	GER		3:33.03
		Rafael Miroslaw		50.49	– (–)
		Luca Armbruster		51.21	– (–)
		Angelina Köhler		56.09	– (–)
		Julia Mrozinski		55.24	– (–)
5	–	Poland	POL		3:33.08
		Jakub Kraska		49.12	– (–)
		Jakub Majerski		50.23	– (–)
		Kornelia Fiedkiewicz		57.03	– (–)
		Aleksandra Knop		56.70	– (–)
6	–	Australia	AUS		3:34.03
		Ashton Brinkworth		50.61	– (–)
		Joseph Jackson		51.56	– (–)
		Michaela Ryan		56.14	– (–)
		Abbey Webb		55.72	– (–)
7	–	Japan	JPN		3:34.18
		Keisuke Yoshida		51.34	– (–)
		Taku Taniguchi		52.67	– (–)
		Mayuka Yamamoto		55.53	– (–)
		Nagisa Ikemoto		54.64	– (–)
DQ	–	Israel	ISR		–
		Denis Loktev		50.56	– (–)
		Gal Cohen Groumi		50.41	– (–)
		Lea Polonsky		57.03	– (–)
		Anastasia Gorbenko		–	– (–)