Guatemala at the 2018 Summer Youth Olympics

Guatemala qualified a girls' team based on their performance at the 2018 AFECAVOL Zone U19 Championship.^[1]

Athlete	Event	Group stage				Round of 24	Round of 16	Quarterfinal	Semifinal	Final / BM	Rank
		Opposition Score	Opposition Score	Opposition Score	Rank	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score
Juárez–Alvarado	Girls' tournament	Gierczynska–Jundziłł (POL) L 0-2	J.J. Zeng–Sh. T. Cao (CHN) L 0-2	Niro–Nada (EGY) W 2-0	3	Baumann–Betschart (SUI) L 0-2	did not advance

Guatemala qualified one gymnast based on its performance at the 2018 American Junior Championship.^[2]

• Girls' artistic individual all-around - 1 quota

Girls

Team	Athlete	Acrobatic	Artistic	Rhythmic	Trampoline	Total points	Rank
Team Oksana Chusovitina (Black)	Viktoryia Akhotnikava (BLR)  Ilya Famenkou (BLR)	12	—N/a			352
	Brandon Briones (USA)	—N/a	32	—N/a
	Adam Tobin (GBR)		45
	Mohamed Afify (EGY)		–
	Indira Ulmasova (UZB)		52
	Karla Pérez (GUA)		35
	Tonya Paulsson (SWE)		38
	Lidiia Iakovleva (AUS)	—N/a		35	—N/a
	Aino Yamada (JPN)			31
	Lilly Rotärmel (GER)			34
	Santiago Escallier (ARG)	—N/a			21
	Antonia Sakellaridou (GRE)				17

Guatemala qualified one athlete based on its performance at one of the Karate Qualification Tournaments.^[3]

• Boys' -61 kg - Pedro de la Roca

Athlete	Event	Group Stage				Semifinal	Final / BM
		Opposition Score	Opposition Score	Opposition Score	Rank	Opposition Score	Opposition Score	Rank
Pedropablo de la Roca	Boys' 61 kg	Oussama Edari (MAR) L (1–4)	Alireza Farajikouhikheili (IRI) W (1–0)	Masaki Yamaoka (JPN) L (0–4)	3	did not advance

Guatemala qualified one boat based on its performance at the American Qualification Regatta.^[4]

• Girls' single sculls - 1 athlete