| San Marino at the 2018 Summer Youth Olympics | |
|---|---|
 | |
| IOC code | SMR |
| NOC | Comitato Olimpico Nazionale Sammarinese |
| in Buenos Aires, Argentina 6 – 18 October 2018 | |
| Competitors | 4 in 3 sports |
| Medals |
|
| Summer Youth Olympics appearances | |
San Marino participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018. [1]
San Marino qualified one athlete.
| 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 | |||
| Leonardo Tura | Boys' Individual | 584 | 32 |  Song In-jun (KOR)L 2-6 | did not advance | ||||
| 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 | |||
 Zhang Mengyao (CHN) Leonardo Tura (SMR) | Mixed Team | 1259 | 32 |  Amr Said Mohamed Azzam (EGY) Potrafke (GER)L 1–5 | did not advance | 17 | |||
San Marino qualified two athletes.
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Raffaele Tamagnini | Boys' 50 metre freestyle | 24.87 | 38 | did not advance | |||
| Boys' 100 metre freestyle | 55.55 | 39 | did not advance | ||||
| Arianna Valloni | Girls' 400 metre freestyle | 4:26.87 | 22 | — | did not advance | ||
| Girls' 800 metre freestyle | 8:57.00 | 15 | — | did not advance | |||
San Marino qualified one athlete.
| Athlete | Event | Group stage | Round of 16 | Quarterfinals | Semifinals | Final / BM | ||
|---|---|---|---|---|---|---|---|---|
| Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank | ||
| Chiara Morri | Girls' singles |  Gauthier (FRA)L 0–4 Blašková (CZE)L 0–4 Sun (CHN)L 0–4 | 4 | did not advance | ||||
Intercontinental–5 Chiara Morri (SMR) Santiago Lorenzo (ARG) | Mixed team | France L 0–3 Azerbaijan L 0–3 India L 0–3 | 4 | did not advance | ||||