| Event: | Athletics – Girls' 100 metres |
| Games: | 2010 Summer Youth |
| Venue: | Bishan Stadium |
| Date: | August 18–21 |
| Competitors: | 36 |
| Nations: | 36 |
| Gold: | Josephine Omaka |
| Goldnoc: | NGR |
| Silver: | Myasia Jacobs |
| Silvernoc: | USA |
| Bronze: | Fany Chalas |
| Bronzenoc: | DOM |
| Next: | 2014 |
The girls' 100 metres event at the 2010 Youth Olympic Games was held on 18–21 August 2010 in Bishan Stadium.
| Date | Time | Round | |
|---|---|---|---|
| 18 August 2010 | 10:45 | Heats | |
| 21 August 2010 | 10:20 | Final |
| Rank | Heat | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes | Q |
|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 7 | 11.70 | FA | ||||
| 2 | 1 | 3 | 11.74 | FA | ||||
| 3 | 4 | 6 | 11.78 | FA | ||||
| 4 | 5 | 4 | 11.82 | FA | ||||
| 5 | 3 | 4 | 11.89 | FA | ||||
| 6 | 1 | 6 | 11.90 | FA | ||||
| 7 | 3 | 3 | 11.95 | FA | ||||
| 8 | 1 | 8 | 12.04 | FA | ||||
| 9 | 2 | 8 | 12.14 | FB | ||||
| 10 | 5 | 5 | 12.18 | FB | ||||
| 11 | 2 | 6 | 12.22 | FB | ||||
| 12 | 4 | 7 | 12.34 | FB | ||||
| 13 | 2 | 5 | 12.46 | FB | ||||
| 14 | 4 | 4 | 12.52 | FB | ||||
| 15 | 1 | 5 | 12.59 | FB | ||||
| 16 | 4 | 3 | 12.69 | FC | ||||
| 17 | 5 | 6 | 12.73 | FC | ||||
| 18 | 2 | 3 | 12.79 | FC | ||||
| 19 | 1 | 1 | 12.85 | FC | ||||
| 20 | 2 | 4 | 13.03 | FC | ||||
| 21 | 4 | 2 | 13.04 | FC | ||||
| 22 | 2 | 7 | 13.11 | FC | ||||
| 22 | 4 | 8 | 13.11 | PB | FD | |||
| 24 | 3 | 5 | 13.15 | FD | ||||
| 25 | 5 | 2 | 13.45 | FD | ||||
| 26 | 1 | 7 | 13.48 | FD | ||||
| 27 | 1 | 2 | 13.57 | PB | FD | |||
| 28 | 3 | 2 | 13.60 | FD | ||||
| 29 | 5 | 7 | 13.64 | FD | ||||
| 30 | 1 | 4 | 13.83 | FE | ||||
| 30 | 3 | 8 | 13.83 | FE | ||||
| 32 | 5 | 3 | 14.24 | FE | ||||
| 33 | 5 | 8 | 14.29 | FE | ||||
| 34 | 4 | 5 | 14.59 | SB | FE | |||
| 35 | 2 | 2 | 15.26 | FE | ||||
| 3 | 6 | FE |
wind: –0.2 m/s
| Rank | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes |
|---|---|---|---|---|---|---|
| 1 | 2 | 13.18 | ||||
| 2 | 4 | 13.71 | ||||
| 3 | 3 | 13.83 | ||||
| 4 | 6 | 13.95 | ||||
| 5 | 8 | 14.43 | SB | |||
| 6 | 7 | 15.03 | ||||
| 5 | DNS | |||||
wind: –0.8 m/s
| Rank | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes |
|---|---|---|---|---|---|---|
| 1 | 6 | 13.16 | ||||
| 2 | 4 | 13.16 | ||||
| 3 | 5 | 13.48 | ||||
| 4 | 8 | 13.50 | ||||
| 5 | 2 | 13.63 | ||||
| 6 | 7 | 13.77 | ||||
| 7 | 3 | 13.86 | ||||
wind: –0.3 m/s
| Rank | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes |
|---|---|---|---|---|---|---|
| 1 | 4 | 12.52 | ||||
| 2 | 5 | 12.53 | ||||
| 3 | 3 | 12.85 | ||||
| 4 | 7 | 12.95 | ||||
| 5 | 6 | 13.03 | ||||
| 6 | 2 | 13.10 | ||||
| 8 | DNS | |||||
wind: –0.4 m/s
| Rank | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes |
|---|---|---|---|---|---|---|
| 1 | 6 | 11.88 | PB | |||
| 2 | 3 | 12.15 | ||||
| 3 | 4 | 12.15 | ||||
| 4 | 7 | 12.35 | ||||
| 5 | 8 | 12.41 | ||||
| 6 | 2 | 12.64 | ||||
| 5 | DNS | |||||
wind: +0.2 m/s
| Rank | Lane | width=300 | Athlete ! | width=80 | Time ! | Notes |
|---|---|---|---|---|---|---|
| 4 | 11.58 | |||||
| 6 | 11.64 | |||||
| 5 | 11.65 | SB | ||||
| 4 | 3 | 11.73 | ||||
| 5 | 7 | 11.81 | ||||
| 6 | 2 | 11.94 | =PB | |||
| 7 | 1 | 12.06 | ||||
| 8 | 8 | 12.08 | ||||