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Mark Dong

Age: 15 years old
Age Category: 15-16
Team: California Dolphins Swim Team | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard California Dolphins Swim Team Pacific Swimming Western Zone USA
Free 50 Y 26.73 15 03/28/2026 B BB: 26.29 (+0.44s | 1.6%) 12 589 1,000+ 1,000+
Free 100 Y 1:02.43 Analysis 15 10/18/2025 B: 1:01.99 (+0.44s | 0.7%) 14 686 1,000+ 1,000+
Free 200 Y 2:06.10 Analysis 15 05/01/2026 BB A: 1:56.59 (+9.51s | 7.5%) 8 395 1,000+ 1,000+
50 Free
28.64
28.64
100 Free
32.32
1:00.96
100 Free
1:00.96
150 Free
32.91
1:33.87
200 Free
32.23
2:06.10
100 Free
1:05.14
Free 500 Y 5:34.50 Analysis 15 05/01/2026 BB A: 5:15.79 (+18.71s | 5.6%) 6 267 1,000+ 1,000+
50 Free
29.57
29.57
100 Free
33.29
1:02.86
100 Free
1:02.86
150 Free
33.85
1:36.71
200 Free
33.88
2:10.59
100 Free
1:07.73
250 Free
33.84
2:44.43
300 Free
34.75
3:19.18
100 Free
1:08.59
350 Free
34.78
3:53.96
400 Free
33.62
4:27.58
100 Free
1:08.40
450 Free
1:06.92
5:34.50
500 Free
0.00
5:34.50
100 Free
1:06.92
Back 50 Y 41.32 15 01/13/2024 B: 31.79 (+9.53s | 23.1%) 14 626 1,000+ 1,000+
Back 100 Y 1:13.87 Analysis 15 12/14/2024 B: 1:07.49 (+6.38s | 8.6%) 12 547 1,000+ 1,000+
Breast 50 Y 44.46 15 09/30/2023 B: 36.69 (+7.77s | 17.5%) 15 614 1,000+ 1,000+
Breast 100 Y 1:16.23 Analysis 15 09/27/2025 B BB: 1:11.39 (+4.84s | 6.3%) 13 443 1,000+ 1,000+
Breast 200 Y 2:41.39 Analysis 15 11/08/2025 B BB: 2:35.19 (+6.20s | 3.8%) 7 267 1,000+ 1,000+
Fly 50 Y 44.20 15 09/16/2023 B: 31.59 (+12.61s | 28.5%) 12 680 1,000+ 1,000+
Fly 100 Y 1:10.24 Analysis 15 10/18/2025 B: 1:07.19 (+3.05s | 4.3%) 11 499 1,000+ 1,000+
Fly 200 Y 2:36.84 Analysis 15 03/22/2025 B: 2:30.19 (+6.65s | 4.2%) 3 229 939 1,000+
IM 200 Y 2:20.81 Analysis 15 03/28/2026 B BB: 2:20.19 (+0.62s | 0.4%) 7 349 1,000+ 1,000+
IM 400 Y 5:31.40 Analysis 15 12/14/2024 B: 5:22.19 (+9.21s | 2.8%) 6 284 1,000+ 1,000+

Long course distance

Event Time Age Date Standard Next Standard California Dolphins Swim Team Pacific Swimming Western Zone USA
Free 50 M 30.88 15 06/13/2026 B BB: 30.59 (+0.29s | 0.9%) 15 523 1,000+ 1,000+
Free 100 M 1:12.90 Analysis 15 05/10/2025 B: 1:11.79 (+1.11s | 1.5%) 15 572 1,000+ 1,000+
Free 200 M 2:31.14 Analysis 15 06/13/2026 B BB: 2:25.39 (+5.75s | 3.8%) 9 404 1,000+ 1,000+
Free 400 M 5:42.75 Analysis 15 06/22/2024 B: 5:34.09 (+8.66s | 2.5%) 9 326 1,000+ 1,000+
Back 50 M 41.57 15 06/22/2024 B: 37.79 (+3.78s | 9.1%) 6 278 1,000+ 1,000+
Back 100 M 1:31.87 Analysis 15 06/22/2024 B: 1:19.39 (+12.48s | 13.6%) 13 498 1,000+ 1,000+
Breast 50 M 43.94 15 06/22/2024 B: 41.79 (+2.15s | 4.9%) 7 259 1,000+ 1,000+
Breast 100 M 1:26.71 Analysis 15 06/07/2025 B BB: 1:23.09 (+3.62s | 4.2%) 9 308 1,000+ 1,000+
Breast 200 M 3:06.74 Analysis 15 06/07/2025 B BB: 3:00.59 (+6.15s | 3.3%) 9 194 900 1,000+
Fly 50 M 37.65 15 06/22/2024 B: 35.69 (+1.96s | 5.2%) 6 322 1,000+ 1,000+
Fly 100 M 1:18.59 Analysis 15 06/07/2025 B: 1:16.79 (+1.80s | 2.3%) 9 361 1,000+ 1,000+
Fly 200 M 3:11.01 Analysis 15 06/07/2025 B: 2:51.69 (+19.32s | 10.1%) 3 166 757 1,000+
IM 200 M 2:54.55 Analysis 15 05/10/2025 B BB: 2:43.59 (+10.96s | 6.3%) 10 396 1,000+ 1,000+
IM 400 M 5:57.29 Analysis 15 06/07/2025 B BB: 5:47.99 (+9.30s | 2.6%) 3 182 865 1,000+

Above are the fastest times that Mark Dong has achieved in his swimming career. For each event, you can find Mark's best time, the corresponding time standard, as well as how much faster Mark needs to be to reach the next level. The last columns provide Mark rankings at the team and LSC levels. These rankings are based on the Mark's personal best, his current age category, and team; and are calculated from all the meets results.

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.