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Mark Du

Age: 11 years old
Age Category: 11-12
Team: Trident Swim Club | Southern California Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Trident Swim Club Southern California Swimming Western Zone USA
Free 50 Y 26.00 11 03/12/2026 AA AAA: 25.79 (+0.21s | 0.8%) 1 40 192 907
Free 100 Y 56.15 Analysis 11 12/12/2025 AAA AAAA: 53.59 (+2.56s | 4.6%) 1 25 105 608
50 Free
27.38
27.38
100 Free
28.77
56.15
100 Free
56.15
Back 50 Y 32.55 11 01/25/2025 A AA: 31.19 (+1.36s | 4.2%) 1 84 342 1,000+
Back 100 Y 1:05.03 Analysis 11 12/12/2025 AA AAA: 1:02.79 (+2.24s | 3.4%) 1 30 99 494
50 Back
31.89
31.89
100 Back
33.14
1:05.03
100 Back
1:05.03
Breast 50 Y 33.12 11 03/12/2026 AAA AAAA: 31.49 (+1.63s | 4.9%) 1 19 54 164
Breast 100 Y 1:13.03 Analysis 11 01/24/2026 AA AAA: 1:11.39 (+1.64s | 2.2%) 1 35 95 453
50 Breast
34.75
34.75
100 Breast
38.28
1:13.03
100 Breast
1:13.03
Fly 50 Y 27.01 11 03/12/2026 AAA AAAA: 26.69 (+0.32s | 1.2%) 1 9 15 53
Fly 100 Y 1:01.30 Analysis 11 03/12/2026 AAA AAAA: 59.09 (+2.21s | 3.6%) 1 19 52 277
50 Fly
29.53
29.53
100 Fly
31.77
1:01.30
100 Fly
1:01.30
IM 100 Y 1:04.23 Analysis 11 03/12/2026 AA AAA: 1:03.99 (+0.24s | 0.4%) 1 19 49 147
50 IM
31.21
31.21
100 IM
33.02
1:04.23
100 IM
1:04.23
IM 200 Y 2:24.11 Analysis 11 01/24/2026 AA AAA: 2:18.79 (+5.32s | 3.7%) 1 40 130 565
50 Fly
31.39
31.39
100 Back
37.28
1:08.67
100 IM
1:08.67
150 Breast
43.22
1:51.89
200 Free
32.22
2:24.11
100 IM
1:15.44

Long course distance

Event Time Age Date Standard Next Standard Trident Swim Club Southern California Swimming Western Zone USA
Free 100 M 1:08.03 Analysis 11 07/24/2025 A AA: 1:07.49 (+0.54s | 0.8%) 1 29 74 157
50 Free
33.04
33.04
100 Free
34.98
1:08.02
100 Free
1:08.02
Back 50 M 40.14 11 07/25/2024 BB A: 37.69 (+2.45s | 6.1%) 1 89 335 684
Back 100 M 1:18.02 Analysis 11 07/24/2025 AA AAA: 1:14.29 (+3.73s | 4.8%) 1 23 58 128
50 Back
38.72
38.72
100 Back
39.30
1:18.02
100 Back
1:18.02
Breast 50 M 41.00 11 06/12/2025 A AA: 39.99 (+1.01s | 2.5%) 1 33 75 152
Breast 100 M 1:28.46 Analysis 11 06/12/2025 A AA: 1:27.19 (+1.27s | 1.4%) 1 26 56 104
50 Breast
42.28
42.28
100 Breast
46.18
1:28.46
100 Breast
1:28.46
Fly 50 M 32.41 11 07/24/2025 AA AAA: 31.99 (+0.42s | 1.3%) 1 10 25 54
Fly 100 M 1:15.84 Analysis 11 07/24/2025 A AA: 1:15.59 (+0.25s | 0.3%) 1 21 50 113
50 Fly
36.24
36.24
100 Fly
39.60
1:15.84
100 Fly
1:15.84
IM 200 M 2:50.49 Analysis 11 07/24/2025 A AA: 2:45.99 (+4.50s | 2.6%) 1 44 90 172
50 Fly
36.10
36.10
100 Back
44.78
1:20.88
100 IM
1:20.88
150 Breast
50.12
2:11.00
200 Free
39.49
2:50.49
100 IM
1:29.61

Above are the fastest times that Mark Du 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.