| 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 | 1037 蔡秉融 | 02:18.43 | RT:0.67; 50M:31.29, 100M:1:06.24, 150M:1:42.35, 200M:2:18.43 | 水道：4 | |
| 2 | 2 | 5 | 臺中市 | 1039 陳志明 | 02:20.46 | RT:0.74; 50M:32.05, 100M:1:06.99, 150M:1:43.54, 200M:2:20.46 | 水道：5 | |
| 3 | 1 | 4 | 新北市 | 1025 許涵棚 | 02:21.00 | RT:0.67; 50M:30.94, 100M:1:05.84, 150M:1:42.46, 200M:2:21.00 | 水道：3 | |
| 4 | 3 | 4 | 新竹市 | 1153 李炫諺 | 02:22.61 | RT:0.72; 50M:31.54, 100M:1:08.11, 150M:1:45.17, 200M:2:22.61 | 水道：6 | |
| 5 | 1 | 5 | 桃園市 | 1093 黃俊祥 | 02:23.39 | RT:0.66; 50M:32.68, 100M:1:08.72, 150M:1:46.14, 200M:2:23.39 | 水道：2 | |
| 6 | 3 | 5 | 新北市 | 1024 温仁豪 | 02:24.02 | RT:0.64; 50M:32.16, 100M:1:08.86, 150M:1:46.78, 200M:2:24.02 | 水道：7 | |
| 7 | 1 | 3 | 臺北市 | 1009 楊宇翔 | 02:24.63 | RT:0.73; 50M:32.07, 100M:1:08.50, 150M:1:46.85, 200M:2:24.63 | 水道：1 | |
| 8 | 3 | 3 | 高雄市 | 1066 洪稚濰 | 02:27.60 | RT:0.75; 50M:32.46, 100M:1:09.20, 150M:1:47.75, 200M:2:27.60 | 水道：8 | |
| 9 | 2 | 6 | 臺北市 | 1014 歐紘志 | 02:28.17 | RT:0.63; 50M:33.59, 100M:1:11.29, 150M:1:50.26, 200M:2:28.17 | | |
| 10 | 2 | 3 | 高雄市 | 1062 劉志誠 | 02:34.95 | RT:0.79; 50M:32.66, 100M:1:10.90, 150M:1:52.18, 200M:2:34.95 | | |
| 11 | 1 | 7 | 新竹市 | 1162 劉奕辰 | 02:36.13 | RT:0.86; 50M:35.10, 100M:1:13.82, 150M:1:53.97, 200M:2:36.13 | | |
| 12 | 2 | 7 | 南投縣 | 1112 侯安遠 | 02:37.52 | RT:0.70; 50M:35.05, 100M:1:14.05, 150M:1:55.25, 200M:2:37.52 | | |
| 13 | 1 | 6 | 基隆市 | 1149 張智凱 | 02:37.97 | RT:0.67; 50M:35.31, 100M:1:15.55, 150M:1:56.94, 200M:2:37.97 | | |
| 14 | 3 | 7 | 臺東縣 | 1130 徐詠瑄 | 02:38.31 | RT:0.81; 50M:35.98, 100M:1:16.29, 150M:1:57.60, 200M:2:38.31 | | |
| 15 | 2 | 2 | 新竹縣 | 1099 汪開民 | 02:38.46 | RT:0.70; 50M:34.40, 100M:1:14.70, 150M:1:56.61, 200M:2:38.46 | | |
| 16 | 3 | 6 | 屏東縣 | 1123 黃諭憑 | 02:38.70 | RT:0.77; 50M:34.59, 100M:1:13.73, 150M:1:56.91, 200M:2:38.70 | | |
| 17 | 3 | 2 | 桃園市 | 1080 黃利恆 | 02:38.99 | RT:0.80; 50M:33.94, 100M:1:13.75, 150M:1:55.50, 200M:2:38.99 | | |
| 18 | 2 | 1 | 屏東縣 | 1124 林彥朋 | 02:39.95 | RT:0.77; 50M:33.91, 100M:1:14.42, 150M:1:57.01, 200M:2:39.95 | | |
| 19 | 1 | 2 | 臺南市 | 1058 毛郁閎 | 02:40.61 | RT:0.72; 50M:34.29, 100M:1:14.30, 150M:1:56.33, 200M:2:40.61 | | |
| 20 | 1 | 1 | 雲林縣 | 1118 林唐右 | 02:43.54 | RT:0.81; 50M:35.28, 100M:1:16.06, 150M:1:58.77, 200M:2:43.54 | | |
| 21 | 3 | 1 | 臺南市 | 1052 胡 翔 | 03:08.77 | RT:0.67; 50M:40.69, 100M:1:29.55, 150M:2:19.09, 200M:3:08.77 | | |