Alyssa Ko

Age: 9 years old
Age Category: 10 & under
Team: Diablo Aquatics | Pacific Swimming

Personal Best

Short course distance

Event	Time	Age	Date	Standard	Next Standard	Diablo Aquatics	Pacific Swimming	Western Zone	USA
Free 25 Y	18.36	8	02/01/2025			4	207	497	1,000+

Free 50 Y	37.02	9	10/18/2025	B	BB: 35.99 (+1.03s \| 2.8%)	7	304	1,000+	1,000+

Free 100 Y	1:29.22	9	11/08/2025	B	BB: 1:21.09 (+8.13s \| 9.1%)	7	392	1,000+	1,000+

Back 25 Y	23.84	8	03/23/2025			8	339	1,000+	1,000+

Breast 25 Y	34.61	8	03/23/2025			12	739	1,000+	1,000+

Fly 25 Y	23.77	8	02/01/2025			10	305	733	1,000+

Fly 50 Y	40.38	9	09/27/2025	BB	A: 36.99 (+3.39s \| 8.4%)	7	177	570	1,000+

IM 100 Y	1:34.33	9	11/08/2025	B	BB: 1:33.19 (+1.14s \| 1.2%)	7	279	954	1,000+

Long course distance

Event	Time	Age	Date	Standard	Next Standard	Diablo Aquatics	Pacific Swimming	Western Zone	USA
Free 50 M	47.64	9	06/07/2025		B: 45.29 (+2.35s \| 4.9%)	6	282	990	1,000+

Free 100 M	1:48.72	9	05/24/2025		B: 1:44.09 (+4.63s \| 4.3%)	7	274	899	1,000+

Back 50 M	55.78	9	06/07/2025	B	BB: 49.69 (+6.09s \| 10.9%)	5	262	943	1,000+

Breast 50 M	1:13.07	9	05/24/2025		B: 1:02.19 (+10.88s \| 14.9%)	6	417	1,000+	1,000+

Fly 50 M	48.33	9	06/07/2025	B	BB: 48.09 (+0.24s \| 0.5%)	5	99	342	585

Above are the fastest times that Alyssa Ko has achieved in her swimming career. For each event, you can find Alyssa's best time, the corresponding time standard, as well as how much faster Alyssa needs to be to reach the next level. The last columns provide Alyssa rankings at the team and LSC levels. These rankings are based on the Alyssa'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	Age Group Championship	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	SouthWestern Age Group Regional
Free 50 Y	37.02	31.39 (+5.63s \| 15.2%)	30.59 (+6.43s \| 17.4%)	29.99 (+7.03s \| 19.0%)	27.69 (+9.33s \| 25.2%)	26.09 (+10.93s \| 29.5%)	24.89 (+12.13s \| 32.8%)	23.89 (+13.13s \| 35.5%)	23.89 (+13.13s \| 35.5%)	23.29 (+13.73s \| 37.1%)	22.59 (+14.43s \| 39.0%)	22.79 (+14.23s \| 38.4%)	N/A	30.89 (+6.13s \| 16.6%)
Free 100 Y	1:29.22	1:10.49 (+18.73s \| 21.0%)	1:08.09 (+21.13s \| 23.7%)	1:04.99 (+24.23s \| 27.2%)	59.99 (+29.23s \| 32.8%)	56.59 (+32.63s \| 36.6%)	53.99 (+35.23s \| 39.5%)	51.89 (+37.33s \| 41.8%)	51.89 (+37.33s \| 41.8%)	50.39 (+38.83s \| 43.5%)	49.29 (+39.93s \| 44.8%)	49.69 (+39.53s \| 44.3%)	N/A	1:08.19 (+21.03s \| 23.6%)
Fly 50 Y	40.38	36.19 (+4.19s \| 10.4%)	33.99 (+6.39s \| 15.8%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+5.29s \| 13.1%)
IM 100 Y	1:34.33	1:20.09 (+14.24s \| 15.1%)	1:17.09 (+17.24s \| 18.3%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+16.64s \| 17.6%)

Long Course Distance

Event	Best Time	Age Group Championship	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	U.S Olympic Team Trials	SouthWestern Age Group Regional
Free 50 M	47.64	35.59 (+12.05s \| 25.3%)	34.79 (+12.85s \| 27.0%)	34.29 (+13.35s \| 28.0%)	31.69 (+15.95s \| 33.5%)	29.89 (+17.75s \| 37.3%)	28.69 (+18.95s \| 39.8%)	27.39 (+20.25s \| 42.5%)	27.39 (+20.25s \| 42.5%)	26.89 (+20.75s \| 43.6%)	26.29 (+21.35s \| 44.8%)	26.59 (+21.05s \| 44.2%)	N/A	25.69 (+21.95s \| 46.1%)	35.19 (+12.45s \| 26.1%)
Free 100 M	1:48.72	1:20.19 (+28.53s \| 26.2%)	1:17.59 (+31.13s \| 28.6%)	1:14.09 (+34.63s \| 31.9%)	1:08.39 (+40.33s \| 37.1%)	1:04.99 (+43.73s \| 40.2%)	1:01.89 (+46.83s \| 43.1%)	59.29 (+49.43s \| 45.5%)	59.29 (+49.43s \| 45.5%)	58.19 (+50.53s \| 46.5%)	56.99 (+51.73s \| 47.6%)	57.59 (+51.13s \| 47.0%)	N/A	55.79 (+52.93s \| 48.7%)	1:17.49 (+31.23s \| 28.7%)
Back 50 M	55.78	42.89 (+12.89s \| 23.1%)	40.49 (+15.29s \| 27.4%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.79 (+13.99s \| 25.1%)
Breast 50 M	1:13.07	47.49 (+25.58s \| 35.0%)	45.89 (+27.18s \| 37.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.19 (+26.88s \| 36.8%)
Fly 50 M	48.33	40.79 (+7.54s \| 15.6%)	38.49 (+9.84s \| 20.4%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	39.69 (+8.64s \| 17.9%)

Progression

See how Alyssa Ko is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Alyssa'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 Alyssa Ko has participated in and her achievement. The last event displayed is the most recent. For each event, you can find the Alyssa's time, the progress against Alyssa's best time, the corresponding time standard, as well as how much faster Alyssa needs to be to reach the next level.

Event	Time	Progress	Standard	Next Standard	Age	Heat	Lane	Ranking
Brentwood Seawolves SCY C B BB+			11/08/2025		Brentwood
50 Y Fly	44.32	+3.94s	B	BB: 42.69 (+1.63s \| 3.7%)	9	2	5	1

100 Y Free	1:29.22	-1.00s (New PB)	B	BB: 1:21.09 (+8.13s \| 9.1%)	9	2	6

100 Y IM	1:34.33	-4.06s (New PB)	B	BB: 1:33.19 (+1.14s \| 1.2%)	9	1	8	6

PC SRVA SCY B BB+ Meet			10/18/2025		San Ramon
100 Y IM	1:38.39		B	BB: 1:33.19 (+5.20s \| 5.3%)	9	6	1	1

50 Y Fly	43.72	+3.34s	B	BB: 42.69 (+1.03s \| 2.4%)	9	4	6	6

100 Y Free	1:30.22	-10.81s (New PB)	B	BB: 1:21.09 (+9.13s \| 10.1%)	9	5	7	4

50 Y Free	37.02	-1.26s (New PB)	B	BB: 35.99 (+1.03s \| 2.8%)	9	7	1	2

PC LAC C B BB			09/27/2025		Livermore
50 Y Free	38.28	-4.94s (New PB)	B	BB: 35.99 (+2.29s \| 6.0%)	9	3	1	3

50 Y Fly	40.38		BB	A: 36.99 (+3.39s \| 8.4%)	9	2	6	2

Orinda Aquatics LC C B BB+ Meet			06/07/2025		Moraga
50 M Fly	48.33	-3.34s (New PB)	B	BB: 48.09 (+0.24s \| 0.5%)	9	4	6	7

50 M Free	47.64			B: 45.29 (+2.35s \| 4.9%)	9	4	3	3

50 M Back	55.78		B	BB: 49.69 (+6.09s \| 10.9%)	9	5	7	4

2025 Tiger Aquatics C B BB+ Memorial Day Meet			05/24/2025		Stockton
50 M Fly	51.67		B	BB: 48.09 (+3.58s \| 6.9%)	9	4	5	3

100 M Free	1:48.72			B: 1:44.09 (+4.63s \| 4.3%)	9	4	6	1

50 M Breast	1:13.07			B: 1:02.19 (+10.88s \| 14.9%)	9	4	6	2

DA WCAB Short Course Dual Meet			03/23/2025		Walnut Creek
25 Y Back	23.84	-1.13s (New PB)			8	1	3	1

25 Y Free	18.73	+0.37s			8	1	3	1

25 Y Breast	34.61	-2.60s (New PB)			8	1	2	3

25 Y Fly	24.42	+0.65s			8	1	3	1

Zone 2 Winter Championship Meet			02/01/2025		Hayward
25 Y Free	18.36	-0.51s (New PB)			8	2	6

25 Y Fly	23.77	-0.37s (New PB)			8	2	3	3

25 Y Back	26.36	+1.39s			8	3	4	1

50 Y Free	43.22	-0.97s (New PB)		B: 39.79 (+3.43s \| 7.9%)	8	2	8	5

100 Y Free	1:41.03	-7.62s (New PB)		B: 1:30.79 (+10.24s \| 10.1%)	8	2	1	6

SRVA SCY CBBB+			11/02/2024		San Ramon
50 Y Free	44.19			B: 39.79 (+4.40s \| 10.0%)	8	2	1	3

25 Y Breast	37.21				8	4	4	9

25 Y Free	20.21	+1.34s			8	2	1	8

25 Y Back	25.55	+0.58s			8	2	8	8

25 Y Fly	27.69	+3.55s			8	3	7	5

BSW C B BB+ Oct 19 20, 2024 [PC 24 126]			10/19/2024		Oakley
25 Y Free	18.87	-2.25s (New PB)			8	2	4	3

25 Y Back	24.97	-0.36s (New PB)			8	1	6	3

25 Y Fly	24.14	-6.71s (New PB)			8	1	2	4

Orinda Aquatics SC C B BB+ Meet			09/28/2024		Moraga
25 Y Free	21.12	-2.44s (New PB)			8	3	6	5

25 Y Back	26.04	+0.71s			8	2	3	2

25 Y Fly	30.85				8	2	2	7

100 Y Free	1:48.65			B: 1:30.79 (+17.86s \| 16.4%)	8	1	2	6

Zone 2 Summer Championships			07/20/2024		hayward
25 Y Back	25.33				8	2	2	7

25 Y Free	23.56				8

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.