Sri Lanka participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.

Sri Lanka made its Youth Olympics (and Olympics) debut in three sports it qualified in: archery, basketball and gymnastics. Sri Lanka also made its Youth Olympics debut in the sport of shooting.

Parami Wasanthi Maristela won Sri Lanka's first ever Youth Olympics medal, a bronze in the girls' 2000 metre steeplechase athletics event.^[1]

The following is the list of number of competitors participating at the Games per sport/discipline.

Medals awarded to participants of mixed-NOC (combined) teams are represented in italics. These medals are not counted towards the individual NOC medal tally.

More information Medal, Name ...

Medal Name Sport Event Date  Gold Hasini Nusaka Ambalangodage Badminton Mixed teams 12 October  Bronze Parami Wasanthi Maristela Athletics Girls' 2000 metre steeplechase 15 October

Medals by sport Sport Total Athletics 0 0 1 1 Total 0 0 1 1 Medals by day Day Total 15 October 0 0 1 1 Total 0 0 1 1

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Sri Lanka qualified one archer based on its performance at the 2017 World Archery Youth Championships.^[2][3][4]

Individual

More information Athlete, Event ...

Athlete	Event	Ranking round		Round of 32	Round of 16	Quarterfinals	Semifinals	Final / BM	Rank
		Score	Seed	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score
Ravien Dalpatadu	Boys' singles	667	14 Q	Hazael Jesus Rodríguez Valero (CUB) W 6–5	Feng Hao (CHN) W 6–5	Artem Ovchynnikov (UKR) L 2–6	did not advance		=5

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Team

More information Athletes, Event ...

Athletes	Event	Ranking round		Round of 32	Round of 16	Quarterfinals	Semifinals	Final / BM	Rank
		Score	Seed	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score
Ravien Dalpatadu (SRI)  Isabella Bassi (CHI)	Mixed team	1298	20 Q	Hendrik Õun (EST)  Nicole Marie Tagle (PHI) L 4–5	did not advance				=17

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Sri Lanka qualified two athletes. On the first day of the Asian trials held in Bangkok, Thailand, Sri Lanka won two quotas. Dilan Bogoda took first place in the boys' 400 metres event, while Parami Wasanthi Maristela won the 2000 metres steeplechase in a world leading team to qualify.^[5][6][7] On the second day of trials, high jumper Seniru Amarasinghe qualified in second place with the third ranked jump in the world (in the age category), while sprinter Shelinda Jansen qualified in third position.^{[8][9][10][11]}

Track & road events

More information Athlete, Event ...

Athlete	Event	Stage 1		Stage 2		Total
		Result	Rank	Result	Rank	Total	Rank
Dilan Bogoda	Boys' 400 m	48.52 PB	5	48.81	7	1:37.33	7
Shalinda Jansen	Girls' 200 m	25.00	11	24.07 PB	9	49.07	9
Parami Wasanthi Maristela	Girls' 2000 metre steeplechase	6:33.06 PB	3	13:47	17 (4)	7

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• Total refers to the placement of round 1 added to the placement in round 2 in the women's 2000 m steeplechase event. The second round will be held as part of the cross-country race.

Field event

Sri Lanka qualified a girls' quota after it was reallocated to the country from an unused tripartie commission universality spot.^[12]

Girl

More information Athlete, Event ...

Athlete	Event	Group stage				Quarterfinal	Semifinal	Final / BM	Rank
		Opposition Score	Opposition Score	Opposition Score	Rank	Opposition Score	Opposition Score	Opposition Score
Hasini Nusaka Ambalangodage	Singles	Jiménez (DOM) W 2–0 (21–14, 21–16)	Chaiwan (THA) L 0–2 (5–21, 12–21)	Ilori (NGR) W 2–0 (21–8, 21–9)	2	did not advance			9

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Team

More information Athlete, Event ...

Athlete	Event	Group stage				Quarterfinal	Semifinal	Final / BM	Rank
		Opposition Score	Opposition Score	Opposition Score	Rank	Opposition Score	Opposition Score	Opposition Score
Team Alpha  Hasini Nusaka Ambalangodage (SRI)  Lakshya Sen (IND)  Giovanni Toti (ITA)  Vannthoun Vath (CAM)  Brian Yang (CAN)  Maria Delcheva (BUL)  Jennie Gai (USA)  Ashwathi Pillai (SWE)	Mixed Teams	Epsilon (MIX) W 110–98	Delta (MIX) L 99–110	Zeta (MIX) W 110–103	2 Q	Gamma (MIX) W 110–94	Theta (MIX) W 110–90	Omega (MIX) W 110–106

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Sri Lanka qualified a girls' basketball team of four athletes.^[13] This marked the country's debut in the sport at the Youth Olympics.^[14]

Girls' tournament

Main article: Basketball at the 2018 Summer Youth Olympics – Girls' tournament

More information Athletes, Event ...

Athletes	Event	Group stage					Quarterfinal	Semifinal	Final / BM	Rank
		Opposition Score	Opposition Score	Opposition Score	Opposition Score	Rank	Opposition Score	Opposition Score	Opposition Score
Leia Hamza Fathima Morseth Rashmi Perera Nihari Perera	Girls' tournament	Egypt (EGY) W 17–15	United States (USA) L 8–21	Ukraine (UKR) L 6–18	Venezuela (VEN) L 10–21	4	did not advance

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Skills Competition

More information Athlete, Event ...

Athlete	Event	Qualification			Final
		Points	Time	Rank	Points	Time	Rank
Leia Hamza	Shoot-out Contest	3	28.3	22	did not advance
Rashmi Perera		1	29.5	34	did not advance

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Sri Lanka received a reallocated spot in the boys' 10 m air rifle event.

Boys

Individual

Team

More information Athletes, Event ...

Athletes	Event	Qualification		Round of 16	Quarterfinals	Semifinals	Final / BM	Rank
		Points	Rank	Opposition Result	Opposition Result	Opposition Result	Opposition Result
Chanidu Seanayake Mudiyanselage (SRI)  Anna Janssen (GER)	Mixed 10 m air rifle	819.0	14 Q	Hayk Babayan (ARM)  Victoria Rossiter (AUS) L 9–10	did not advance

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Sri Lanka qualified one male swimmer. Akalanka Peiris met the A or B standard times for all of his events.^[16]

Boy

• Sri Lanka at the 2018 Commonwealth Games
• Sri Lanka at the 2018 Asian Games