River Marson

Age: 12 years old
Age Category: 11-12
Team: Team Eugene Aquatics | Oregon Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Oregon Swimming Team Eugene Aquatics
Free 50 Y 36.49 11 08/02/2025 B: 33.99 (+2.50s | 6.9%) 342 17
Free 100 Y 1:21.73 11 08/02/2025 B: 1:14.69 (+7.04s | 8.6%) 297 16
50 Free
39.07
39.07
100 Free
42.66
1:21.73
100 Free
1:21.73
Free 200 Y 2:57.10 11 01/31/2025 B: 2:42.59 (+14.51s | 8.2%) 214 14
50 Free
1:27.43
1:27.43
100 Free
45.82
2:13.25
100 Free
2:13.25
150 Free
43.97
2:57.22
200 Free
0.-12
2:57.10
100 Free
43.85
Free 500 Y 8:16.91 10 10/18/2024 B: 7:16.89 (+60.02s | 12.1%) 152 14
Back 50 Y 40.13 11 08/02/2025 B: 38.79 (+1.34s | 3.3%) 182 10
Back 100 Y 1:28.67 11 01/04/2025 B: 1:26.59 (+2.08s | 2.3%) 189 12
50 Back
44.23
44.23
100 Back
44.44
1:28.67
100 Back
1:28.67
Breast 50 Y 45.81 11 08/02/2025 B: 43.99 (+1.82s | 4.0%) 195 14
Breast 100 Y 1:41.05 11 06/12/2025 B: 1:36.49 (+4.56s | 4.5%) 197 14
50 Breast
48.27
48.27
100 Breast
52.78
1:41.05
100 Breast
1:41.05
Breast 200 Y 3:30.39 11 08/02/2025 B: 3:25.69 (+4.70s | 2.2%) 52 9
50 Breast
48.27
48.27
100 Breast
51.55
1:39.82
100 Breast
1:39.82
150 Breast
56.41
2:36.23
200 Breast
54.16
3:30.39
100 Breast
1:50.57
Fly 50 Y 49.95 10 11/01/2024 B: 36.89 (+13.06s | 26.1%) 313 18
Fly 100 Y 1:45.75 10 10/18/2024 B: 1:25.79 (+19.96s | 18.9%) 175 14
50 Fly
49.01
49.01
100 Fly
56.74
1:45.75
100 Fly
1:45.75
Fly 200 Y 3:32.45 11 03/15/2025 B: 3:03.39 (+29.06s | 13.7%) 24 3
50 Fly
45.46
45.46
100 Fly
53.70
1:39.16
100 Fly
1:39.16
150 Fly
57.66
2:36.82
200 Fly
55.63
3:32.45
100 Fly
1:53.29
IM 100 Y 1:30.86 11 12/13/2024 B: 1:25.19 (+5.67s | 6.2%) 206 14
50 IM
42.83
42.83
100 IM
48.03
1:30.86
100 IM
1:30.86
IM 200 Y 3:04.15 11 03/15/2025 B: 3:03.89 (+0.26s | 0.1%) 137 12
50 Fly
47.28
47.28
100 Back
44.25
1:31.53
100 IM
1:31.53
150 Breast
52.14
2:23.67
200 Free
40.48
3:04.15
100 IM
1:32.62
IM 400 Y 6:46.97 11 03/15/2025 B: 6:31.69 (+15.28s | 3.8%) 30 9
50 Fly
48.39
48.39
100 Fly
56.39
1:44.78
100 Fly
1:44.78
150 Back
47.51
2:32.29
200 Back
48.91
3:21.20
100 Back
1:36.42
250 Breast
56.33
4:17.53
300 Breast
58.04
5:15.57
100 Breast
1:54.37
350 Free
46.64
6:02.21
400 Free
44.76
6:46.97
100 Free
1:31.40

Long course distance

Event Time Age Date Standard Next Standard Oregon Swimming Team Eugene Aquatics
Free 50 M 39.76 11 06/06/2025 B: 38.49 (+1.27s | 3.2%) 186 12
Free 100 M 1:30.51 11 06/06/2025 B: 1:25.59 (+4.92s | 5.4%) 174 12
50 Free
43.66
43.66
100 Free
46.85
1:30.51
100 Free
1:30.51
Free 200 M 3:21.44 11 06/27/2025 B: 3:06.39 (+15.05s | 7.5%) 161 12
50 Free
45.80
45.80
100 Free
51.83
1:37.63
100 Free
1:37.63
150 Free
55.44
2:33.07
200 Free
48.37
3:21.44
100 Free
1:43.81
Free 400 M 7:12.56 11 05/17/2025 B: 6:32.89 (+39.67s | 9.2%) 85 9
Back 50 M 46.68 11 05/02/2025 B: 44.79 (+1.89s | 4.0%) 157 7
Back 100 M 1:38.16 11 05/02/2025 B BB: 1:32.69 (+5.47s | 5.6%) 113 8
Breast 50 M 51.58 11 06/06/2025 B: 49.79 (+1.79s | 3.5%) 128 10
Breast 100 M 1:49.86 11 05/02/2025 B BB: 1:42.19 (+7.67s | 7.0%) 98 7
Breast 200 M 4:00.47 11 05/17/2025 B: 3:56.79 (+3.68s | 1.5%) 44 7
Fly 50 M 52.17 11 05/17/2025 B: 41.79 (+10.38s | 19.9%) 190 14
IM 200 M 3:41.99 11 06/27/2025 B: 3:30.59 (+11.40s | 5.1%) 142 11
50 Fly
54.09
54.09
100 Back
56.57
1:50.66
100 IM
1:50.66
150 Breast
1:02.13
2:52.79
200 Free
49.20
3:41.99
100 IM
1:51.33

Above are the fastest times that River Marson has achieved in her swimming career. For each event, you can find River's best time, the corresponding time standard, as well as how much faster River needs to be to reach the next level. The last columns provide River rankings at the team and LSC levels. These rankings are based on the River's personal best, her 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.