| 排名 | 組數 | 水道 | 單 位 | 姓 名 | 成 績 | 分段時間 | 晉 級 | 備 註 |
| 1 | 2 | 4 | 臺中市 | 2035 張芳語 | 02:07.03 | RT:0.80; 50M:29.43, 100M:1:01.72, 150M:1:34.71, 200M:2:07.03 | 水道：4 | |
| 2 | 1 | 4 | 屏東縣 | 2111 李彥妮 | 02:07.12 | RT1:0.67, RT2:0.67; 50M:20.80, 100M:40.37, 50M:28.54, 100M:1:00.45, 150M:1:33.73, 200M:2:07.12 | 水道：5 | |
| 3 | 1 | 5 | 新北市 | 2019 劉家伶 | 02:09.12 | RT1:0.69, RT2:0.67; 50M:21.01, 100M:40.99, 50M:29.47, 100M:1:02.35, 150M:1:35.57, 200M:2:09.12 | 水道：3 | |
| 4 | 2 | 5 | 臺中市 | 2040 林姵彣 | 02:09.39 | RT:0.77; 50M:29.86, 100M:1:02.71, 150M:1:36.17, 200M:2:09.39 | 水道：6 | |
| 5 | 3 | 4 | 高雄市 | 2066 徐 安 | 02:09.76 | RT:0.74; 50M:29.90, 100M:1:02.61, 150M:1:36.04, 200M:2:09.76 | 水道：2 | |
| 6 | 3 | 5 | 高雄市 | 2058 陳思安 | 02:10.23 | RT:0.74; 50M:29.91, 100M:1:02.78, 150M:1:37.10, 200M:2:10.23 | 水道：7 | |
| 7 | 1 | 3 | 屏東縣 | 2110 郭芮安 | 02:11.71 | RT1:0.67, RT2:0.72; 50M:20.39, 100M:40.13, 50M:30.29, 100M:1:04.26, 150M:1:38.44, 200M:2:11.71 | 水道：1 | |
| 8 | 3 | 6 | 臺北市 | 2007 楊宇晴 | 02:11.76 | RT:0.71; 50M:30.25, 100M:1:03.34, 150M:1:37.64, 200M:2:11.76 | 水道：8 | |
| 9 | 2 | 3 | 新竹市 | 2129 李宥彤 | 02:12.69 | RT:0.77; 50M:31.04, 100M:1:04.47, 150M:1:38.70, 200M:2:12.69 | | |
| 10 | 1 | 2 | 新竹市 | 2128 蔣佩君 | 02:13.11 | RT1:0.50, RT2:0.91; 50M:20.86, 100M:40.58, 50M:30.85, 100M:1:04.30, 150M:1:38.60, 200M:2:13.11 | | |
| 11 | 1 | 6 | 臺北市 | 2009 韓安齊 | 02:13.29 | RT1:0.71, RT2:0.71; 50M:20.99, 100M:40.88, 50M:29.78, 100M:1:03.72, 150M:1:38.94, 200M:2:13.29 | | |
| 12 | 3 | 2 | 彰化縣 | 2097 程璉如 | 02:13.64 | RT:0.74; 50M:31.16, 100M:1:04.60, 150M:1:39.10, 200M:2:13.64 | | |
| 13 | 2 | 6 | 雲林縣 | 2099 曾清心 | 02:14.63 | RT:0.74; 50M:30.21, 100M:1:03.48, 150M:1:38.86, 200M:2:14.63 | | |
| 14 | 1 | 1 | 花蓮縣 | 2118 墨 耘 | 02:15.73 | RT1:0.84, RT2:0.78; 50M:20.33, 100M:41.20, 50M:31.14, 100M:1:05.41, 150M:1:40.88, 200M:2:15.73 | | |
| 15 | 2 | 7 | 臺南市 | 2050 卓盈佳 | 02:16.80 | RT:0.75; 50M:31.00, 100M:1:05.49, 150M:1:41.08, 200M:2:16.80 | | |
| 16 | 3 | 7 | 臺南市 | 2057 賴怡安 | 02:17.76 | RT:0.74; 50M:31.96, 100M:1:06.33, 150M:1:42.00, 200M:2:17.76 | | |
| 17 | 3 | 1 | 桃園市 | 2071 呂宜嬛 | 02:18.20 | RT:0.80; 50M:31.49, 100M:1:06.13, 150M:1:42.26, 200M:2:18.20 | | |
| 18 | 2 | 2 | 臺東縣 | 2114 徐芳澄 | 02:18.44 | RT:0.82; 50M:31.66, 100M:1:06.71, 150M:1:43.27, 200M:2:18.44 | | |
| 19 | 2 | 1 | 基隆市 | 2121 詹庭瑜 | 02:19.05 | RT:0.81; 50M:31.94, 100M:1:06.82, 150M:1:42.92, 200M:2:19.05 | | |
| 20 | 3 | 8 | 桃園市 | 2073 呂宜靜 | 02:19.40 | RT:0.91; 50M:32.36, 100M:1:07.47, 150M:1:43.59, 200M:2:19.40 | | |
| 21 | 2 | 8 | 新竹縣 | 2091 李芯愛 | 02:21.74 | RT:0.83; 50M:32.07, 100M:1:07.20, 150M:1:43.80, 200M:2:21.74 | | |
| 22 | 3 | 3 | 新北市 | 2024 張家瑜 | 02:26.92 | RT:0.78; 50M:31.08, 100M:1:04.76, 150M:1:42.49, 200M:2:26.92 | | |
| 23 | 1 | 7 | 基隆市 | 2122 張立瑜 | | | | 請假 |