| Event: | Girls' 100 metre hurdles |
| Games: | 2018 Summer Youth |
| Venue: | Parque Polideportivo Roca |
| Date: | 11, 14 October |
| Competitors: | 20 |
| Nations: | 20 |
| Gold: | Grace Stark |
| Goldnoc: | USA |
| Silver: | Sophie White |
| Silvernoc: | AUS |
| Bronze: | Ackera Nugent |
| Bronzenoc: | JAM |
| Prev: | 2014 |
| Next: | 2026 |
The girls' 100 metre hurdles competition at the 2018 Summer Youth Olympics was held on 11 and 14 October, at the Parque Polideportivo Roca.
All times are in local time (UTC-3).
| Date | Time | Round | ||||
|---|---|---|---|---|---|---|
| Thursday, 11 October 2018 | 15:55 | Stage 1 | ||||
| style=background:lemonchiffon | Sunday, 14 October 2018 | style=background:lemonchiffon | 14:25 | style=background:lemonchiffon | Stage 2 |
| Rank | Heat | Lane | Athlete | Nation | Result | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | Grace Stark | 13.31 | QH3, . | ||
| 2 | 1 | 7 | Sophie White | 13.39 | QH3 | ||
| 3 | 2 | 2 | Ackera Nugent | 13.45 | QH3 | ||
| 4 | 2 | 3 | Johanna Plank | 13.71 | QH3 | ||
| 5 | 3 | 5 | Lin Ting-wei | 13.79 | QH3 | ||
| 6 | 3 | 8 | Keily Linet Pérez Ibáñez | 13.96 | QH3 | ||
| 7 | 1 | 5 | Angele Pitz | 13.98 | QH3 | ||
| 8 | 1 | 6 | Ditaji Kambundji | 13.98 | QH3 | ||
| 9 | 2 | 5 | Sarah Belle | 14.06 | QH2 | ||
| 10 | 2 | 8 | Aimara Nazareno | 14.10 | QH2 | ||
| 10 | 3 | 7 | Kayla van den Berg | 14.10 | QH2 | ||
| 12 | 3 | 3 | María Fernanda Patrón Noguera | 14.14 | QH2 | ||
| 13 | 3 | 6 | Antonia Buschendorf | 14.16 | QH2 | ||
| 14 | 1 | 3 | Viktoryia Kharavitskaya | 14.39 | QH2 | ||
| 15 | 2 | 7 | Elīza Kraule | 14.45 | QH2 | ||
| 16 | 1 | 8 | Monika Romaszko | 14.49 | QH2 | ||
| 17 | 1 | 4 | Fanni Bacsa | 14.64 | QH1 | ||
| 18 | 2 | 6 | Isabel Velasco | 15.31 | QH1 | ||
| 19 | 2 | 4 | Bianca Elena Toader | 18.95 | QH1 | ||
| 3 | 2 | Olivia Gee | , QH1 | ||||
| 3 | 4 | Daniela Mena | QH1 |
| Rank | Heat | Lane | Athlete | Nation | Result | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 4 | Grace Stark | 12.83 | |||
| 2 | 3 | 6 | Ackera Nugent | 12.96 | |||
| 3 | 3 | 5 | Sophie White | 13.01 | |||
| 4 | 3 | 3 | Johanna Plank | 13.40 | |||
| 5 | 3 | 7 | Lin Ting-wei | 13.47 | |||
| 6 | 3 | 8 | Keily Linet Pérez Ibáñez | 13.49 | |||
| 7 | 2 | 5 | María Fernanda Patrón Noguera | 13.68 | |||
| 8 | 2 | 4 | Aimara Nazareno | 13.73 | |||
| 9 | 2 | 7 | Antonia Buschendorf | 13.75 | |||
| 10 | 3 | 2 | Angele Pitz | 13.77 | |||
| 11 | 1 | 3 | Fanni Bacsa | 13.89 | |||
| 12 | 2 | 8 | Viktoryia Kharavitskaya | 14.01 | |||
| 13 | 2 | 3 | Kayla van den Berg | 14.13 | |||
| 14 | 2 | 1 | Elīza Kraule | 14.14 | |||
| 15 | 2 | 2 | Monika Romaszko | 14.14 | |||
| 16 | 2 | 6 | Sarah Belle | 14.32 | |||
| 17 | 3 | 1 | Ditaji Kambundji | 14.44 | |||
| 18 | 1 | 5 | Isabel Velasco | 15.78 | |||
| 1 | 6 | Bianca Elena Toader | |||||
| 1 | 7 | Olivia Gee | |||||
| 1 | 4 | Daniela Mena |
| Rank | Athlete | Nation | Stage 1 | Stage 2 | Total | |
|---|---|---|---|---|---|---|
| Grace Stark | 13.31 | 12.83 | 26.14 | |||
| Sophie White | 13.39 | 13.01 | 26.40 | |||
| Ackera Nugent | 13.45 | 12.96 | 26.41 | |||
| Johanna Plank | 13.71 | 13.40 | 27.11 | |||
| Lin Ting-wei | 13.79 | 13.47 | 27.26 | |||
| Keily Linet Pérez Ibáñez | 13.96 | 13.49 | 27.45 | |||
| Angele Pitz | 13.98 | 13.77 | 27.75 | |||
| María Fernanda Patrón Noguera | 14.14 | 13.68 | 27.82 | |||
| Aimara Nazareno | 14.10 | 13.73 | 27.83 | |||
| 10 | Antonia Buschendorf | 14.16 | 13.75 | 27.91 | ||
| 11 | Kayla van den Berg | 14.10 | 14.13 | 28.23 | ||
| 12 | Sarah Belle | 14.06 | 14.32 | 28.38 | ||
| 13 | Viktoryia Kharavitskaya | 14.39 | 14.01 | 28.40 | ||
| 14 | Ditaji Kambundji | 13.98 | 14.44 | 28.42 | ||
| 15 | Fanni Bacsa | 14.64 | 13.89 | 28.53 | ||
| 16 | Elīza Kraule | 14.45 | 14.14 | 28.59 | ||
| 17 | Monika Romaszko | 14.49 | 14.14 | 28.63 | ||
| 18 | Isabel Velasco | 15.31 | 15.78 | 31.09 | ||
| Bianca Elena Toader | 18.95 | |||||
| Olivia Gee | ||||||
| Daniela Mena |