| Swimming – Women's 100 metre backstroke at the 2015 SEA Games | ||||||||||
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| Venue | OCBC Aquatic Centre | |||||||||
| Date | 9 June 2015 | |||||||||
| Competitors | 10 from 7 nations | |||||||||
| Medalists | ||||||||||
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The women's 100 metre backstroke competition of the swimming event at the 2015 SEA Games was held on 9 June at the OCBC Aquatic Centre in Kallang, Singapore. [1]
Prior to this competition, the existing Asian and Games records were as follows:
| Asian record |  Aya Terakawa (JPN) | 58.70 | Barcelona, Spain | 4 August 2013 |
| Games record |  Tao Li (SIN) | 1:02.11 | Palembang, Indonesia | 16 December 2011 |
All times are Singapore Standard Time (UTC+08:00)
| Date | Time | Event |
|---|---|---|
| Tuesday, 9 June 2015 | 09:09 | Heat 1 |
| 09:10 | Heat 2 | |
| 19:40 | Final |
| KEY: | Q | Qualified | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best | WD | Withdrew | DNF | Did not finish |
The heats were held on 9 June.
Heat 1 was held on 9 June.
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
| 1 | 6 | Quek Jia Hui Hannah (SIN) | 1:05.69 | Q |
| 2 | 4 | Tao Li (SIN) | 1:05.94 | Q |
| 3 | 5 |  Parita Damrongrat (THA) | 1:06.41 | Q |
| 4 | 3 |  Anak Agung Istri Kania Ratih (INA) | 1:06.76 | Q |
| 5 | 2 |  Caroline Chan Zi Xin (MAS) | 1:08.14 |
Heat 2 was held on 9 June.
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
| 1 | 6 |  Roxanne Ashley Yu (PHI) | 1:05.03 | Q |
| 2 | 5 | Araya Wongvat (THA) | 1:05.38 | Q |
| 3 | 3 | Yessy Venesia Yosaputra (INA) | 1:05.65 | Q |
| 4 | 2 | Elizabeth Ann Jordana (PHI) | 1:05.66 | Q |
| 5 | 7 |  Seng Samphors (CAM) | 1:18.43 |
The final was held on 9 June.
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
 | 7 | Tao Li (SIN) | 1:02.67 | |
 | 8 | Anak Agung Istri Kania Ratih (INA) | 1:04.38 | NR |
 | 4 | Roxanne Ashley Yu (PHI) | 1:04.80 | |
| 4 | 3 | Yessy Venesia Yosaputra (INA) | 1:05.18 | |
| 5 | 5 | Araya Wongvat (THA) | 1:05.31 | |
| 6 | 2 | Quek Jia Hui Hannah (SIN) | 1:05.83 | |
| 7 | 1 | Parita Damrongrat (THA) | 1:05.85 | |
| 8 | 6 | Elizabeth Ann Jordana (PHI) | 1:05.94 |
