Marissa Koroma

Age: 13 years old
Age Category: 13-14
Team: Naval Academy Aquatic Club | Maryland Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Maryland Swimming

Naval Academy Aquatic Club

Free 50 Y

31.64

12/11/2025

BB: 30.19 (+1.45s | 4.6%)

Free 100 Y

1:09.70

01/16/2026

BB: 1:05.89 (+3.81s | 5.5%)

50 Free

33.26

100 Free

36.44

1:09.70

100 Free

1:09.70

Free 200 Y

2:36.30

12/11/2025

B: 2:33.59 (+2.71s | 1.7%)

50 Free

36.02

100 Free

39.92

1:15.94

100 Free

1:15.94

150 Free

40.89

1:56.83

200 Free

39.47

2:36.30

100 Free

1:20.36

Back 100 Y

1:17.86

01/16/2026

B: 1:16.89 (+0.97s | 1.2%)

50 Back

38.26

100 Back

39.60

1:17.86

100 Back

1:17.86

Breast 100 Y

1:26.53

01/16/2026

BB: 1:22.29 (+4.24s | 4.9%)

50 Breast

41.42

100 Breast

45.11

1:26.53

100 Breast

1:26.53

Breast 200 Y

3:14.09

01/16/2026

B: 3:10.99 (+3.10s | 1.6%)

50 Breast

44.17

100 Breast

49.35

1:33.52

100 Breast

1:33.52

150 Breast

51.74

2:25.26

200 Breast

48.83

3:14.09

100 Breast

1:40.57

Fly 100 Y

1:17.50

01/16/2026

B: 1:16.79 (+0.71s | 0.9%)

50 Fly

36.25

100 Fly

41.25

1:17.50

100 Fly

1:17.50

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Maryland Swimming

Naval Academy Aquatic Club

Free 100 M

1:41.31

05/19/2023

B: 1:21.19 (+20.12s | 19.9%)

50 Free

46.76

100 Free

54.55

1:41.31

100 Free

1:41.31

Free 200 M

3:37.53

05/19/2023

B: 2:55.29 (+42.24s | 19.4%)

Breast 200 M

4:36.18

05/19/2023

B: 3:40.29 (+55.89s | 20.2%)

50 Breast

1:04.41

100 Breast

1:10.37

2:14.78

100 Breast

2:14.78

150 Breast

1:12.88

3:27.66

200 Breast

1:08.52

4:36.18

100 Breast

2:21.40

Fly 100 M

2:05.26

05/19/2023

B: 1:27.19 (+38.07s | 30.4%)

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

Time Standards

Got the currrent age group time standard
Time standard for the next age group and the gap to reach it
Got the next age group’s time standard.

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	31.64	24.89 (+6.75s \| 21.3%)	23.89 (+7.75s \| 24.5%)	23.89 (+7.75s \| 24.5%)	23.29 (+8.35s \| 26.4%)	22.59 (+9.05s \| 28.6%)	22.79 (+8.85s \| 28.0%)	27.99 (+3.65s \| 11.5%)
Free 100 Y	1:09.70	53.99 (+15.71s \| 22.5%)	51.89 (+17.81s \| 25.6%)	51.89 (+17.81s \| 25.6%)	50.39 (+19.31s \| 27.7%)	49.29 (+20.41s \| 29.3%)	49.69 (+20.01s \| 28.7%)	59.79 (+9.91s \| 14.2%)
Free 200 Y	2:36.30	1:56.29 (+40.01s \| 25.6%)	1:52.89 (+43.41s \| 27.8%)	1:52.29 (+44.01s \| 28.2%)	1:49.09 (+47.21s \| 30.2%)	1:46.69 (+49.61s \| 31.7%)	1:47.39 (+48.91s \| 31.3%)	2:09.19 (+27.11s \| 17.3%)
Back 100 Y	1:17.86	59.49 (+18.37s \| 23.6%)	57.09 (+20.77s \| 26.7%)	57.09 (+20.77s \| 26.7%)	55.09 (+22.77s \| 29.2%)	53.89 (+23.97s \| 30.8%)	54.49 (+23.37s \| 30.0%)	1:05.69 (+12.17s \| 15.6%)
Breast 100 Y	1:26.53	1:07.59 (+18.94s \| 21.9%)	1:05.49 (+21.04s \| 24.3%)	1:05.49 (+21.04s \| 24.3%)	1:03.09 (+23.44s \| 27.1%)	1:01.79 (+24.74s \| 28.6%)	1:02.79 (+23.74s \| 27.4%)	1:15.39 (+11.14s \| 12.9%)
Breast 200 Y	3:14.09	2:28.19 (+45.90s \| 23.6%)	2:22.69 (+51.40s \| 26.5%)	2:22.69 (+51.40s \| 26.5%)	2:17.19 (+56.90s \| 29.3%)	2:13.59 (+60.50s \| 31.2%)	2:15.49 (+58.60s \| 30.2%)	2:43.09 (+31.00s \| 16.0%)
Fly 100 Y	1:17.50	59.19 (+18.31s \| 23.6%)	56.59 (+20.91s \| 27.0%)	56.59 (+20.91s \| 27.0%)	54.69 (+22.81s \| 29.4%)	53.49 (+24.01s \| 31.0%)	53.99 (+23.51s \| 30.3%)	1:05.59 (+11.91s \| 15.4%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 M	1:41.31	1:01.89 (+39.42s \| 38.9%)	59.29 (+42.02s \| 41.5%)	59.29 (+42.02s \| 41.5%)	58.19 (+43.12s \| 42.6%)	56.99 (+44.32s \| 43.7%)	57.59 (+43.72s \| 43.2%)	1:08.39 (+32.92s \| 32.5%)
Free 200 M	3:37.53	2:12.99 (+84.54s \| 38.9%)	2:07.79 (+89.74s \| 41.3%)	2:07.79 (+89.74s \| 41.3%)	2:04.99 (+92.54s \| 42.5%)	2:03.09 (+94.44s \| 43.4%)	2:04.29 (+93.24s \| 42.9%)	2:27.69 (+69.84s \| 32.1%)
Breast 200 M	4:36.18	2:49.69 (+106.49s \| 38.6%)	2:43.39 (+112.79s \| 40.8%)	2:43.39 (+112.79s \| 40.8%)	2:38.59 (+117.59s \| 42.6%)	2:36.09 (+120.09s \| 43.5%)	2:38.29 (+117.89s \| 42.7%)	3:07.59 (+88.59s \| 32.1%)
Fly 100 M	2:05.26	1:07.19 (+58.07s \| 46.4%)	1:04.69 (+60.57s \| 48.4%)	1:04.69 (+60.57s \| 48.4%)	1:02.69 (+62.57s \| 50.0%)	1:01.69 (+63.57s \| 50.8%)	1:02.39 (+62.87s \| 50.2%)	1:13.89 (+51.37s \| 41.0%)

Progression

See how Marissa Koroma is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Marissa's time to another swimmer's and even view their profile for more information about them.

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Meets

See all the meets Marissa Koroma has participated in and her achievement. The last event displayed is the most recent. For each event, you can find the Marissa's time, the progress against Marissa's best time, the corresponding time standard, as well as how much faster Marissa needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

ISCA January Classic 2026

01/16/2026

Hampton

100 Y Back

1:17.86

-1.66s (New PB)

B: 1:16.89 (+0.97s | 1.2%)

50 Back

38.26

100 Back

39.60

1:17.86

100 Back

1:17.86

50 Y Fly

34.21

+0.14s

100 Y Fly

1:17.50

B: 1:16.79 (+0.71s | 0.9%)

50 Fly

36.25

100 Fly

41.25

1:17.50

100 Fly

1:17.50

200 Y Breast

3:14.09

-4.66s (New PB)

B: 3:10.99 (+3.10s | 1.6%)

50 Breast

44.17

100 Breast

49.35

1:33.52

100 Breast

1:33.52

150 Breast

51.74

2:25.26

200 Breast

48.83

3:14.09

100 Breast

1:40.57

100 Y Breast

1:26.53

-1.98s (New PB)

BB: 1:22.29 (+4.24s | 4.9%)

50 Breast

41.42

100 Breast

45.11

1:26.53

100 Breast

1:26.53

50 Y Free

31.74

+0.10s

BB: 30.19 (+1.55s | 4.9%)

50 Y Breast

41.39

-0.19s (New PB)

50 Y Back

35.90

+0.09s

100 Y Free

1:09.70

-17.19s (New PB)

BB: 1:05.89 (+3.81s | 5.5%)

50 Free

33.26

100 Free

36.44

1:09.70

100 Free

1:09.70

2025 East Coast WinterFest

12/11/2025

Richmond

50 Y Fly

34.07

-8.14s (New PB)

50 Y Free

31.64

-4.94s (New PB)

BB: 30.19 (+1.45s | 4.6%)

100 Y Breast

1:28.51

-37.14s (New PB)

BB: 1:22.29 (+6.22s | 7.0%)

50 Breast

42.03

100 Breast

46.48

1:28.51

100 Breast

1:28.51

200 Y Free

2:36.30

-20.73s (New PB)

B: 2:33.59 (+2.71s | 1.7%)

50 Free

36.02

100 Free

39.92

1:15.94

100 Free

1:15.94

150 Free

40.89

1:56.83

200 Free

39.47

2:36.30

100 Free

1:20.36

50 Y Back

35.81

-6.73s (New PB)

50 Y Breast

41.58

-5.67s (New PB)

100 Y Back

1:19.52

-13.89s (New PB)

B: 1:16.89 (+2.63s | 3.3%)

50 Back

39.14

100 Back

40.38

1:19.52

100 Back

1:19.52

200 Y Breast

3:18.75

B: 3:10.99 (+7.76s | 3.9%)

50 Breast

44.77

100 Breast

51.67

1:36.44

100 Breast

1:36.44

150 Breast

52.20

2:28.64

200 Breast

50.11

3:18.75

100 Breast

1:42.31

2023 East Coast WinterFest

12/07/2023

Richmond

200 Y Free

2:57.03

-19.45s (New PB)

B: 2:42.59 (+14.44s | 8.2%)

50 Free

40.26

100 Free

46.90

1:27.16

100 Free

1:27.16

150 Free

48.22

2:15.38

200 Free

41.65

2:57.03

100 Free

1:29.87

50 Y Fly

42.21

-5.13s (New PB)

B: 36.89 (+5.32s | 12.6%)

100 Y IM

1:35.06

-7.55s (New PB)

B: 1:25.19 (+9.87s | 10.4%)

50 IM

43.45

100 IM

51.61

1:35.06

100 IM

1:35.06

100 Y Back

1:33.41

B: 1:26.59 (+6.82s | 7.3%)

50 Back

45.91

100 Back

47.50

1:33.41

100 Back

1:33.41

50 Y Free

36.58

B: 33.99 (+2.59s | 7.1%)

50 Y Breast

47.25

-9.22s (New PB)

B: 43.99 (+3.26s | 6.9%)

50 Y Back

42.54

-6.09s (New PB)

B: 38.79 (+3.75s | 8.8%)

100 Y Free

1:26.89

-0.19s (New PB)

B: 1:14.69 (+12.20s | 14.0%)

50 Free

41.62

100 Free

45.27

1:26.89

100 Free

1:26.89

HNVR Storm Surge 2023

05/19/2023

Stafford

50 M Back

48.92

A: 43.59 (+5.33s | 10.9%)

50 M Fly

50.08

BB: 48.09 (+1.99s | 4.0%)

100 M Free

1:41.31

BB: 1:32.99 (+8.32s | 8.2%)

50 Free

46.76

100 Free

54.55

1:41.31

100 Free

1:41.31

200 M Breast

4:36.18

50 Breast

1:04.41

100 Breast

1:10.37

2:14.78

100 Breast

2:14.78

150 Breast

1:12.88

3:27.66

200 Breast

1:08.52

4:36.18

100 Breast

2:21.40

100 M Fly

2:05.26

BB: 1:55.39 (+9.87s | 7.9%)

50 M Breast

58.91

BB: 55.49 (+3.42s | 5.8%)

200 M Free

3:37.53

BB: 3:25.69 (+11.84s | 5.4%)

2023 HNVR Duck Bowl

01/21/2023

Stafford

100 Y IM

1:42.61

BB: 1:33.19 (+9.42s | 9.2%)

200 Y Free

3:16.48

BB: 3:00.59 (+15.89s | 8.1%)

100 Y Breast

2:05.65

B: 2:00.29 (+5.36s | 4.3%)

50 Breast

59.69

100 Breast

1:05.96

2:05.65

100 Breast

2:05.65

50 Y Breast

56.47

B: 54.59 (+1.88s | 3.3%)

100 Y Free

1:27.08

BB: 1:21.09 (+5.99s | 6.9%)

50 Free

40.46

100 Free

46.62

1:27.08

100 Free

1:27.08

50 Y Fly

47.34

BB: 42.69 (+4.65s | 9.8%)

50 Y Back

48.63

B: 48.59 (+0.04s | 0.1%)

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.

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	31.64	24.89 (+6.75s \| 21.3%)	23.89 (+7.75s \| 24.5%)	23.89 (+7.75s \| 24.5%)	23.29 (+8.35s \| 26.4%)	22.59 (+9.05s \| 28.6%)	22.79 (+8.85s \| 28.0%)	27.99 (+3.65s \| 11.5%)
Free 100 Y	1:09.70	53.99 (+15.71s \| 22.5%)	51.89 (+17.81s \| 25.6%)	51.89 (+17.81s \| 25.6%)	50.39 (+19.31s \| 27.7%)	49.29 (+20.41s \| 29.3%)	49.69 (+20.01s \| 28.7%)	59.79 (+9.91s \| 14.2%)
Free 200 Y	2:36.30	1:56.29 (+40.01s \| 25.6%)	1:52.89 (+43.41s \| 27.8%)	1:52.29 (+44.01s \| 28.2%)	1:49.09 (+47.21s \| 30.2%)	1:46.69 (+49.61s \| 31.7%)	1:47.39 (+48.91s \| 31.3%)	2:09.19 (+27.11s \| 17.3%)
Back 100 Y	1:17.86	59.49 (+18.37s \| 23.6%)	57.09 (+20.77s \| 26.7%)	57.09 (+20.77s \| 26.7%)	55.09 (+22.77s \| 29.2%)	53.89 (+23.97s \| 30.8%)	54.49 (+23.37s \| 30.0%)	1:05.69 (+12.17s \| 15.6%)
Breast 100 Y	1:26.53	1:07.59 (+18.94s \| 21.9%)	1:05.49 (+21.04s \| 24.3%)	1:05.49 (+21.04s \| 24.3%)	1:03.09 (+23.44s \| 27.1%)	1:01.79 (+24.74s \| 28.6%)	1:02.79 (+23.74s \| 27.4%)	1:15.39 (+11.14s \| 12.9%)
Breast 200 Y	3:14.09	2:28.19 (+45.90s \| 23.6%)	2:22.69 (+51.40s \| 26.5%)	2:22.69 (+51.40s \| 26.5%)	2:17.19 (+56.90s \| 29.3%)	2:13.59 (+60.50s \| 31.2%)	2:15.49 (+58.60s \| 30.2%)	2:43.09 (+31.00s \| 16.0%)
Fly 100 Y	1:17.50	59.19 (+18.31s \| 23.6%)	56.59 (+20.91s \| 27.0%)	56.59 (+20.91s \| 27.0%)	54.69 (+22.81s \| 29.4%)	53.49 (+24.01s \| 31.0%)	53.99 (+23.51s \| 30.3%)	1:05.59 (+11.91s \| 15.4%)

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 M	1:41.31	1:01.89 (+39.42s \| 38.9%)	59.29 (+42.02s \| 41.5%)	59.29 (+42.02s \| 41.5%)	58.19 (+43.12s \| 42.6%)	56.99 (+44.32s \| 43.7%)	57.59 (+43.72s \| 43.2%)	1:08.39 (+32.92s \| 32.5%)
Free 200 M	3:37.53	2:12.99 (+84.54s \| 38.9%)	2:07.79 (+89.74s \| 41.3%)	2:07.79 (+89.74s \| 41.3%)	2:04.99 (+92.54s \| 42.5%)	2:03.09 (+94.44s \| 43.4%)	2:04.29 (+93.24s \| 42.9%)	2:27.69 (+69.84s \| 32.1%)
Breast 200 M	4:36.18	2:49.69 (+106.49s \| 38.6%)	2:43.39 (+112.79s \| 40.8%)	2:43.39 (+112.79s \| 40.8%)	2:38.59 (+117.59s \| 42.6%)	2:36.09 (+120.09s \| 43.5%)	2:38.29 (+117.89s \| 42.7%)	3:07.59 (+88.59s \| 32.1%)
Fly 100 M	2:05.26	1:07.19 (+58.07s \| 46.4%)	1:04.69 (+60.57s \| 48.4%)	1:04.69 (+60.57s \| 48.4%)	1:02.69 (+62.57s \| 50.0%)	1:01.69 (+63.57s \| 50.8%)	1:02.39 (+62.87s \| 50.2%)	1:13.89 (+51.37s \| 41.0%)