| | Event type

100 metres Butterfly, Boys

Date	8 – 9 October 2018
Status	YOG
Location	Natatorium, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires
Participants	46 from 43 countries

Pos	Competitor	NOC	R1	SF	Final
1	Andrey Minakov	RUS	52.47 (1 h4)	51.94 (1 h2)	51.12 (1)	Gold
2	Kristóf Milák	HUN	53.08 (1 h6)	52.56 (1 h1)	51.50 (2)	Silver
3	Federico Burdisso	ITA	53.13 (=1 h5)	52.43 (2 h2)	52.42 (3)	Bronze
4	Shinnosuke Ishikawa	JPN	53.57 (2 h6)	52.67 (3 h2)	52.52 (4)
5	Ihor Troianovskyi	UKR	53.94 (3 h4)	52.88 (5 h2)	52.73 (5)
6	Jakub Majerski	POL	53.13 (=1 h5)	52.79 (2 h1)	52.95 (6)
7	Daniel Martin	ROU	53.33 (3 h5)	52.70 (4 h2)	53.00 (7)
8	Noè Ponti	SUI	53.71 (4 h6)	53.47 (6 h2)	53.56 (8)
9	Shen Jiahao	CHN	53.43 (2 h4)	53.52 (4 h1)	–
10	Denys Kesil	UKR	53.69 (3 h6)	53.47 (3 h1)	–
11	Daniil Markov	RUS	53.91 (5 h6)	54.07 (6 h1)	–
12	Park Jeong-Hun	KOR	53.95 (1 h3)	54.21 (7 h1)	–
13	Eddie Wang	TPE	53.99 (4 h4)	53.93 (7 h2)	–
14	Sergueï Comte	FRA	54.11 (4 h5)	54.02 (5 h1)	–
15	Ong Jung Yi	SGP	54.21 (5 h4)	54.70 (8 h2)	–
16	Jake Johnson	USA	54.25 (5 h5)	54.34 (8 h1)	–
17	Luca Armbruster	GER	54.51 (6 h6)	–	–
18	Abeiku Jackson	GHA	54.52 (2 h3)	–	–
=19	Maurice Ingenrieth	GER	54.56 (6 h4)	–	–
=19	Josh Liendo	CAN	54.56 (6 h5)	–	–
21	Tihomir Todorov	BUL	54.67 (7 h6)	–	–
22	Nicholas Owen Lim	HKG	55.02 (3 h3)	–	–
23	Alex Ahtiainen	EST	55.05 (4 h3)	–	–
24	Gal Cohen Groumi	ISR	55.22 (8 h6)	–	–
25	Ivan Shamshuryn	BLR	55.23 (7 h5)	–	–
26	Gal Kordež	SLO	55.32 (5 h3)	–	–
27	Guillermo Cruz	MEX	55.46 (1 h2)	–	–
28	Kael Yorke	TTO	55.72 (8 h5)	–	–
29	Benjamín Schnapp	CHI	55.75 (2 h2)	–	–
30	Hendrik Duvenhage	RSA	55.86 (6 h3)	–	–
31	Vladislav Shuliko	KGZ	56.03 (3 h2)	–	–
32	Ferran Siré	ESP	56.37 (1 h1)	–	–
33	Dominik Karačić	CRO	56.38 (7 h4)	–	–
34	Mohamed Ahmed Mohamed	EGY	56.66 (4 h2)	–	–
35	Samy Boutouil	MAR	56.95 (7 h3)	–	–
=36	Yael Touw	SUR	56.96 (=5 h2)	–	–
=36	Adrián Paseta	PER	56.96 (=5 h2)	–	–
38	Yacob Al-Khulaifi	QAT	57.09 (2 h1)	–	–
39	Low Zheng Yong	MAS	57.21 (7 h2)	–	–
40	Jeerakit Soammanus	THA	58.35 (8 h2)	–	–
41	Joseph Jackson	AUS	58.38 (8 h3)	–	–
42	Lleyton Martin	ANT	59.32 (3 h1)	–	–
43	Ky Odlum	ISV	1:00.73 (4 h1)	–	–
44	Émilien Puyo	MON	1:03.69 (5 h1)	–	–
45	Ousmane Touré	MLI	1:04.02 (6 h1)	–	–
DQ	Efe Turan	TUR	– (DQ h1)	–	–
DNS	Tomoe Hvas	NOR	– (DNS h4)	–	–

Round One

Date	8 October 2018 — 10:30
Format	Top 16 advance to the semi-finals.

Heat #1

Time	10:30

Pos	Competitor	NOC	Time
1	Ferran Siré	ESP	56.37
2	Yacob Al-Khulaifi	QAT	57.09
3	Lleyton Martin	ANT	59.32
4	Ky Odlum	ISV	1:00.73
5	Émilien Puyo	MON	1:03.69
6	Ousmane Touré	MLI	1:04.02
DQ	Efe Turan	TUR	–

Heat #2

Pos	Competitor	NOC	Time
1	Guillermo Cruz	MEX	55.46
2	Benjamín Schnapp	CHI	55.75
3	Vladislav Shuliko	KGZ	56.03
4	Mohamed Ahmed Mohamed	EGY	56.66
=5	Yael Touw	SUR	56.96
=5	Adrián Paseta	PER	56.96
7	Low Zheng Yong	MAS	57.21
8	Jeerakit Soammanus	THA	58.35

Heat #3

Pos	Competitor	NOC	Time
1	Park Jeong-Hun	KOR	53.95	Q
2	Abeiku Jackson	GHA	54.52
3	Nicholas Owen Lim	HKG	55.02
4	Alex Ahtiainen	EST	55.05
5	Gal Kordež	SLO	55.32
6	Hendrik Duvenhage	RSA	55.86
7	Samy Boutouil	MAR	56.95
8	Joseph Jackson	AUS	58.38

Heat #4

Pos	Competitor	NOC	Time
1	Andrey Minakov	RUS	52.47	Q
2	Shen Jiahao	CHN	53.43	Q
3	Ihor Troianovskyi	UKR	53.94	Q
4	Eddie Wang	TPE	53.99	Q
5	Ong Jung Yi	SGP	54.21	Q
6	Maurice Ingenrieth	GER	54.56
7	Dominik Karačić	CRO	56.38
DNS	Tomoe Hvas	NOR	–

Heat #5

Pos	Competitor	NOC	Time
=1	Federico Burdisso	ITA	53.13	Q
=1	Jakub Majerski	POL	53.13	Q
3	Daniel Martin	ROU	53.33	Q
4	Sergueï Comte	FRA	54.11	Q
5	Jake Johnson	USA	54.25	Q
6	Josh Liendo	CAN	54.56
7	Ivan Shamshuryn	BLR	55.23
8	Kael Yorke	TTO	55.72

Heat #6

Pos	Competitor	NOC	Time
1	Kristóf Milák	HUN	53.08	Q
2	Shinnosuke Ishikawa	JPN	53.57	Q
3	Denys Kesil	UKR	53.69	Q
4	Noè Ponti	SUI	53.71	Q
5	Daniil Markov	RUS	53.91	Q
6	Luca Armbruster	GER	54.51
7	Tihomir Todorov	BUL	54.67
8	Gal Cohen Groumi	ISR	55.22

Semi-Finals

Date	8 – 9 October 2018 — 18:32
Format	Top 8 advance to the final round.

Heat #1

Time	8 October 2018 — 18:32

Pos	Competitor	NOC	Time
1	Kristóf Milák	HUN	52.56	Q
2	Jakub Majerski	POL	52.79	Q
3	Denys Kesil	UKR	53.47	q
4	Shen Jiahao	CHN	53.52
5	Sergueï Comte	FRA	54.02
6	Daniil Markov	RUS	54.07
7	Park Jeong-Hun	KOR	54.21
8	Jake Johnson	USA	54.34

Heat #2

Pos	Competitor	NOC	Time
1	Andrey Minakov	RUS	51.94	Q
2	Federico Burdisso	ITA	52.43	Q
3	Shinnosuke Ishikawa	JPN	52.67	Q
4	Daniel Martin	ROU	52.70	Q
5	Ihor Troianovskyi	UKR	52.88	Q
6	Noè Ponti	SUI	53.47	q
7	Eddie Wang	TPE	53.93
8	Ong Jung Yi	SGP	54.70

Swim-Off

Time	9 October 2018 — 11:29

Pos	Competitor	NOC	Time
1	Noè Ponti	SUI	53.16	Q
2	Denys Kesil	UKR	53.42

Final Round

Date	9 October 2018 — 18:46

Pos	Competitor	NOC	Time
1	Andrey Minakov	RUS	51.12
2	Kristóf Milák	HUN	51.50
3	Federico Burdisso	ITA	52.42
4	Shinnosuke Ishikawa	JPN	52.52
5	Ihor Troianovskyi	UKR	52.73
6	Jakub Majerski	POL	52.95
7	Daniel Martin	ROU	53.00
8	Noè Ponti	SUI	53.56