| | Event type
Welterweight (≤69 kilograms), Boys
| Date | 21 – 25 August 2010 | |
|---|---|---|
| Status | YOG | |
| Location | International Convention Centre Hall, Singapore | |
| Participants | 6 from 6 countries | |
| Format | Single elimination tournament. | |
| Pos | Competitor | NOC | |||
|---|---|---|---|---|---|
| 1 | David da Costa |  BRA | Gold | ||
| 2 | Ahmad Mamadjanov |  UZB | Silver | ||
| 3 | Nursähet Pazzyýew |  TKM | Bronze | ||
| 4 | Islomzhon Dalibaev |  KGZ | |||
| 5 | Denis Radovan |  GER | |||
| 6 | Benny Muziyo |  ZAM |
Round One
| Date | 21 August 2010 — 19:00 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 21 Aug 19:00 | David da Costa | BRA | Decision | Benny Muziyo | ZAM | |
| Match #2 | 21 Aug 19:15 | Islomzhon Dalibaev | KGZ | Decision | Denis Radovan | GER |
Semi-Finals
| Date | 22 August 2010 — 15:45 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 22 Aug 15:45 | Ahmad Mamadjanov | UZB | Decision | Nursähet Pazzyýew | TKM | |
| Match #2 | 22 Aug 19:45 | David da Costa | BRA | Decision | Islomzhon Dalibaev | KGZ |
Final Round
| Date | 23 – 25 August 2010 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match 1/2 | 25 Aug 15:45 | David da Costa | BRA | Decision | Ahmad Mamadjanov | UZB | |
| Match 3/4 | 24 Aug 19:45 | Nursähet Pazzyýew | TKM | Decision | Islomzhon Dalibaev | KGZ | |
| Match 5/6 | 23 Aug 19:45 | Denis Radovan | GER | Decision | Benny Muziyo | ZAM |