# Swimming at the 2010 Summer Youth Olympics – Girls' 100 metre freestyle

The girls' 100 metre freestyle event at the 2010 Youth Olympic Games took place on August 16 and the final on August 17, at the Singapore Sports School.

## Medalists

| Gold | Tang Yi China | 54.46 |
| Silver | Emma McKeon Australia | 55.37 |
| Bronze | Lauren Earp Canada | 56.59 |

## Heats
### Heat 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | Zeineb Khalfallah | Tunisia | 58.37 | Q |
| 2 | 1 | Bieliukas Trejo Oriana | Venezuela | 58.90 | |
| 3 | 5 | Bria Deveaux | Bahamas | 1:01.17 | |
| 4 | 2 | Maria Lopez | Bolivia | 1:04.86 | |
| 5 | 7 | Arhatha Magavi | India | 1:05.18 | |
| 6 | 8 | Madhawee Weerathunga | Sri Lanka | 1:05.38 | |
| 7 | 3 | Aina Filsrabetsara | Madagascar | 1:06.73 | |
| | 4 | Josephine Blamo | Liberia | | DNS |

### Heat 2

| Rank | Lane | Name | Nationality | Time |
| 1 | 4 | Sara Hayajna | Jordan | 1:01.08 |
| 2 | 5 | Katriin Kersa | Estonia | 1:01.13 |
| 3 | 3 | Dayana Castro | Costa Rica | 1:01.65 |
| 4 | 6 | Angélique Trinquier | Monaco | 1:05.04 |
| 5 | 2 | Maria Gibbons | Palau | 1:11.34 |
| 6 | 8 | Zeynab Ba | Senegal | 1:12.66 |
| 7 | 7 | Jennet Saryyeva | Turkmenistan | 1:14.28 |
| 8 | 1 | Aminath Shajan | Maldives | 1:15.25 |

### Heat 3

| Rank | Lane | Name | Nationality | Time |
| 1 | 2 | Patricia Hapsari | Indonesia | 58.85 |
| 2 | 5 | Gizem Bozkurt | Turkey | 59.05 |
| 3 | 6 | Raissa Andrea Guerra | Uruguay | 59.70 |
| 4 | 3 | Karen Sif Vilhjalmsdotter | Iceland | 1:00.01 |
| 5 | 1 | Bayan Jumah | Syria | 1:00.07 |
| 6 | 4 | Kimberlee John-Williams | Trinidad and Tobago | 1:00.15 |
| 7 | 8 | Tiana Tasevska | Macedonia | 1:01.04 |
| 8 | 7 | Simona Marinova | Macedonia | 1:01.21 |

### Heat 4

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | Aksana Dziamidava | Belarus | 58.22 | Q |
| 2 | 3 | Lotta Nevalainen | Finland | 58.46 | |
| 3 | 4 | Ingibjorg Kristin Jonsdottir | Iceland | 58.74 | |
| 4 | 5 | Kyla Ferreira | South Africa | 59.20 | |
| 5 | 7 | Sarah Rolko | Luxembourg | 59.56 | |
| 6 | 1 | Shahd Mostafa | Egypt | 1:00.42 | |
| 7 | 8 | Adeline Winata | Singapore | 1:00.64 | |
| 8 | 6 | Hristina Muncheva | Bulgaria | 1:01.51 | |

### Heat 5

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Lauren Earp | Canada | 57.09 | Q |
| 2 | 7 | Sarah Wegria | Belgium | 57.55 | Q |
| 3 | 6 | Danielle Villars | Switzerland | 57.59 | Q |
| 4 | 2 | Nicol Samsonyk | Israel | 58.02 | Q |
| 5 | 4 | Amanda Lim | Singapore | 58.03 | Q |
| 6 | 8 | Cheyenne Pigot | Suriname | 58.66 | |
| 7 | 1 | Tam Nguyen Tran | Vietnam | 59.39 | |
| 8 | 3 | Mathilde Cini | France | 59.43 | |

### Heat 6

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | Emma McKeon | Australia | 56.04 | Q |
| 2 | 5 | Alessandra Marchioro | Brazil | 56.74 | Q |
| 3 | 4 | Juliane Reinhold | Germany | 57.71 | Q |
| 4 | 1 | Natalia Pawlaczek | Poland | 58.29 | Q |
| 5 | 3 | Isabella Arcila | Colombia | 58.49 | |
| 6 | 8 | Manon Minneboo | Netherlands | 58.77 | |
| 7 | 2 | Chloe Francis | New Zealand | 58.84 | |
| 8 | 7 | Maria Carolina da Costa Rosa | Portugal | 59.45 | |

### Heat 7

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Tang Yi | China | 57.22 | Q |
| 2 | 3 | Katarina Listopadova | Slovakia | 57.35 | Q |
| 3 | 5 | Agnes Bucz | Hungary | 57.70 | Q |
| 4 | 7 | Jordan Mattern | United States | 57.81 | Q |
| 5 | 2 | Jasmine Alkhaldi | Philippines | 58.16 | Q |
| 6 | 1 | Eleanor Faulkner | Great Britain | 58.71 | |
| 7 | 6 | Juanita Barreto | Colombia | 59.45 | |
| | 8 | Elena di Liddo | Italy | | DNS |

## Semifinals
### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Tang Yi | China | 56.22 | Q |
| 2 | 4 | Alessandra Marchioro | Brazil | 56.82 | Q |
| 3 | 6 | Agnes Bucz | Hungary | 56.97 | Q |
| 4 | 2 | Jordan Mattern | United States | 57.36 | Q |
| 5 | 1 | Aksana Dziamidava | Belarus | 57.49 | |
| 6 | 7 | Amanda Lim | Singapore | 57.99 | |
| 7 | 8 | Zeineb Khalfallah | Tunisia | 58.12 | |
| 8 | 3 | Sarah Wegria | Belgium | 58.23 | |

### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Emma McKeon | Australia | 55.64 | Q |
| 2 | 3 | Katarina Listopadova | Slovakia | 56.67 | Q |
| 3 | 5 | Lauren Earp | Canada | 56.79 | Q |
| 4 | 6 | Danielle Villars | Switzerland | 57.22 | Q |
| 5 | 2 | Juliane Reinhold | Germany | 57.64 | |
| 6 | 1 | Jasmine Alkhaldi | Philippines | 58.01 | |
| 7 | 7 | Nicol Samsonyk | Israel | 58.18 | |
| 8 | 8 | Natalia Pawlaczek | Poland | 58.40 | |

## Final

| Rank | Lane | Name | Nationality | Time |
| | 5 | Tang Yi | China | 54.46 |
| | 4 | Emma McKeon | Australia | 55.37 |
| | 6 | Lauren Earp | Canada | 56.59 |
| 4 | 3 | Katarina Listopadova | Slovakia | 56.90 |
| 5 | 2 | Alessandra Marchioro | Brazil | 57.12 |
| 6 | 7 | Agnes Bucz | Hungary | 57.40 |
| 7 | 8 | Jordan Mattern | United States | 57.52 |
| 8 | 1 | Danielle Villars | Switzerland | 57.72 |