Jiwoo Yoo

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

Personal Best

Short course distance

Event	Time	Age	Date	Standard	Next Standard	Quicksilver Swimming	Pacific Swimming	Western Zone	USA
Free 25 Y	24.88	7	01/26/2024			30	862	1,000+	1,000+

Free 50 Y	38.79	9	01/16/2026	B	BB: 35.99 (+2.80s \| 7.2%)	18	423	1,000+	1,000+

Free 100 Y	1:32.22	9	01/16/2026		B: 1:30.79 (+1.43s \| 1.6%)	18	473	1,000+	1,000+

Back 25 Y	22.89	8	04/26/2025			10	242	677	1,000+

Back 50 Y	51.46	8	04/26/2025		B: 48.59 (+2.87s \| 5.6%)	24	638	1,000+	1,000+

Breast 25 Y	27.99	8	01/24/2025			12	383	942	1,000+

Breast 50 Y	50.78	8	12/05/2025	B	BB: 48.69 (+2.09s \| 4.1%)	16	378	1,000+	1,000+

Fly 25 Y	19.05	8	04/26/2025			2	76	150	482

Fly 50 Y	40.78	9	01/16/2026	BB	A: 36.99 (+3.79s \| 9.3%)	8	189	610	1,000+

IM 100 Y	1:38.30	9	01/16/2026	B	BB: 1:33.19 (+5.11s \| 5.2%)	13	360	1,000+	1,000+

IM 200 Y	3:31.40	9	01/16/2026	B	BB: 3:18.79 (+12.61s \| 6.0%)	4	143	666	1,000+

Long course distance

Event	Time	Age	Date	Next Standard	Quicksilver Swimming	Pacific Swimming	Western Zone	USA
Free 50 M	1:24.56	6	06/24/2023	B: 45.29 (+39.27s \| 46.4%)	29	667	1,000+	1,000+

Breast 50 M	2:00.42	6	06/24/2023	B: 1:02.19 (+58.23s \| 48.4%)	21	534	1,000+	1,000+

Above are the fastest times that Jiwoo Yoo has achieved in her swimming career. For each event, you can find Jiwoo's best time, the corresponding time standard, as well as how much faster Jiwoo needs to be to reach the next level. The last columns provide Jiwoo rankings at the team and LSC levels. These rankings are based on the Jiwoo'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	38.79	31.39 (+7.40s \| 19.1%)	30.59 (+8.20s \| 21.1%)	29.99 (+8.80s \| 22.7%)	27.69 (+11.10s \| 28.6%)	26.09 (+12.70s \| 32.7%)	24.89 (+13.90s \| 35.8%)	23.89 (+14.90s \| 38.4%)	23.89 (+14.90s \| 38.4%)	23.29 (+15.50s \| 40.0%)	22.59 (+16.20s \| 41.8%)	22.79 (+16.00s \| 41.2%)	N/A	30.89 (+7.90s \| 20.4%)
Free 100 Y	1:32.22	1:10.49 (+21.73s \| 23.6%)	1:08.09 (+24.13s \| 26.2%)	1:04.99 (+27.23s \| 29.5%)	59.99 (+32.23s \| 34.9%)	56.59 (+35.63s \| 38.6%)	53.99 (+38.23s \| 41.5%)	51.89 (+40.33s \| 43.7%)	51.89 (+40.33s \| 43.7%)	50.39 (+41.83s \| 45.4%)	49.29 (+42.93s \| 46.6%)	49.69 (+42.53s \| 46.1%)	N/A	1:08.19 (+24.03s \| 26.1%)
Back 50 Y	51.46	36.69 (+14.77s \| 28.7%)	35.49 (+15.97s \| 31.0%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+14.97s \| 29.1%)
Breast 50 Y	50.78	41.69 (+9.09s \| 17.9%)	40.29 (+10.49s \| 20.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+10.39s \| 20.5%)
Fly 50 Y	40.78	36.19 (+4.59s \| 11.3%)	33.99 (+6.79s \| 16.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+5.69s \| 14.0%)
IM 100 Y	1:38.30	1:20.09 (+18.21s \| 18.5%)	1:17.09 (+21.21s \| 21.6%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+20.61s \| 21.0%)
IM 200 Y	3:31.40	2:52.39 (+39.01s \| 18.5%)	2:47.99 (+43.41s \| 20.5%)	2:36.79 (+54.61s \| 25.8%)	2:24.79 (+66.61s \| 31.5%)	2:16.99 (+74.41s \| 35.2%)	2:10.49 (+80.91s \| 38.3%)	2:06.39 (+85.01s \| 40.2%)	2:06.39 (+85.01s \| 40.2%)	2:02.19 (+89.21s \| 42.2%)	1:59.49 (+91.91s \| 43.5%)	2:00.59 (+90.81s \| 43.0%)	N/A	2:46.49 (+44.91s \| 21.2%)

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	1:24.56	35.59 (+48.97s \| 57.9%)	34.79 (+49.77s \| 58.9%)	34.29 (+50.27s \| 59.4%)	31.69 (+52.87s \| 62.5%)	29.89 (+54.67s \| 64.7%)	28.69 (+55.87s \| 66.1%)	27.39 (+57.17s \| 67.6%)	27.39 (+57.17s \| 67.6%)	26.89 (+57.67s \| 68.2%)	26.29 (+58.27s \| 68.9%)	26.59 (+57.97s \| 68.6%)	N/A	25.69 (+58.87s \| 69.6%)	35.19 (+49.37s \| 58.4%)
Breast 50 M	2:00.42	47.49 (+72.93s \| 60.6%)	45.89 (+74.53s \| 61.9%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.19 (+74.23s \| 61.6%)

Progression

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

Select the distance and stroke

Compare with another swimmer

View this profile

Meets

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

Event	Time	Progress	Standard	Next Standard	Age	Heat	Lane	Ranking
2026 Neptune Swimming Invitational			02/13/2026		Santa Rosa
50 Y Fly	42.09	+1.31s	BB	A: 36.99 (+5.10s \| 12.1%)	9

2026 Brian Malick Memorial Z1S Championships			01/16/2026		Morgan Hill
50 Y Fly	40.78	-0.63s (New PB)	BB	A: 36.99 (+3.79s \| 9.3%)	9	3	5	5

50 Y Back	51.53	+0.07s		B: 48.59 (+2.94s \| 5.7%)	9	6	2	8

100 Y IM	1:38.30		B	BB: 1:33.19 (+5.11s \| 5.2%)	9		4	5

200 Y IM	3:31.40		B	BB: 3:18.79 (+12.61s \| 6.0%)	9	4	3	3

50 Y Breast	53.88	+3.10s	B	BB: 48.69 (+5.19s \| 9.6%)	9	5	1	6

50 Y Free	38.79	-0.77s (New PB)	B	BB: 35.99 (+2.80s \| 7.2%)	9	5	4	7

100 Y Free	1:32.22			B: 1:30.79 (+1.43s \| 1.6%)	9	9	4	1

Zone 1S Year End Age Group Champs Minus Meet			12/05/2025		Morgan Hill
50 Y Breast	50.78	-20.41s (New PB)	B	BB: 48.69 (+2.09s \| 4.1%)	8	3	1	5

50 Y Fly	41.41	-9.77s (New PB)	BB	A: 36.99 (+4.42s \| 10.7%)	8	1	8	1

50 Y Free	39.56	-11.23s (New PB)	B	BB: 35.99 (+3.57s \| 9.0%)	8	4	5	5

Pacific Swimming 10 Under SC Championships			04/26/2025		Palo Alto
50 Y Fly	51.18			B: 48.39 (+2.79s \| 5.5%)	8	1	9	8

25 Y Fly	19.05	-1.40s (New PB)			8	1	9	5

50 Y Back	51.46	-7.40s (New PB)		B: 48.59 (+2.87s \| 5.6%)	8	1	9	8

25 Y Back	22.89	-0.10s (New PB)			8	2	3

2025 Brian Malick Memorial Z1S Championships			01/24/2025		Morgan Hill
25 Y Breast	27.99	-4.83s (New PB)			8	3	1	4

25 Y Fly	20.45				8	5	3	2

25 Y Back	22.99	-2.24s (New PB)			8	3	5	3

2024 Milpitas Aquatic Club SC CBA+ Meet			03/22/2024		Morgan Hill
50 Y Free	50.79	-4.69s (New PB)		B: 39.79 (+11.00s \| 21.7%)	7	2	3	2

50 Y Back	58.86	-1.08s (New PB)		B: 48.59 (+10.27s \| 17.4%)	7	6	6	5

50 Y Breast	1:11.19	-2.37s (New PB)		B: 54.59 (+16.60s \| 23.3%)	7	5	7	9

QSS Santa Cruz C B A+ Meet			02/10/2024		Soquel
25 Y Back	25.23	-0.46s (New PB)			7	3	2	7

25 Y Breast	32.82	-0.13s (New PB)			7	2	8	7

2024 Brian Malick Memorial Z1S Championships			01/26/2024		Morgan Hill
50 Y Free	55.48	-2.67s (New PB)		B: 39.79 (+15.69s \| 28.3%)	7	4	7	7

25 Y Back	25.69	-5.43s (New PB)			7	4	7	8

25 Y Free	24.88	-7.15s (New PB)			7	5	5	4

25 Y Breast	32.95				7	4	3	6

Zone 1 South AGC Minus Year End			12/08/2023		Morgan Hill
50 Y Free	58.89	+0.74s		B: 39.79 (+19.10s \| 32.4%)	6	1	8	9

50 Y Breast	1:13.56	-2.46s (New PB)		B: 54.59 (+18.97s \| 25.8%)	6		5	1

50 Y Back	1:01.67	+1.73s		B: 48.59 (+13.08s \| 21.2%)	6	7	4	1

MBSC Last Chance Meet			11/18/2023		Salinas
50 Y Breast	1:16.02	-0.31s (New PB)		B: 54.59 (+21.43s \| 28.2%)	6	7	4	2

QSS Short Course Distance CBA+ Meet			11/04/2023		San Jose
50 Y Free	1:02.36	+4.21s		B: 39.79 (+22.57s \| 36.2%)	6	8	2

50 Y Back	59.94	-4.20s (New PB)		B: 48.59 (+11.35s \| 18.9%)	6		2	6

Gilroy Gators C B A+			10/21/2023		Morgan Hill
50 Y Free	58.15	-17.70s (New PB)		B: 39.79 (+18.36s \| 31.6%)	6	4	3	1

50 Y Breast	1:16.33			B: 54.59 (+21.74s \| 28.5%)	6	4	3	4

50 Y Back	1:04.14	-10.99s (New PB)		B: 48.59 (+15.55s \| 24.2%)	6	3	2	7

2023 QSS SC Invite			06/28/2023		San Jose
25 Y Back	31.12				6	7	4	7

25 Y Free	32.03				6	5	3	3

SBA Long Course C B A+			06/24/2023		Hollister
50 M Breast	2:00.42			B: 1:02.19 (+58.23s \| 48.4%)	6	8	4	5

50 M Free	1:24.56			B: 45.29 (+39.27s \| 46.4%)	6	7	2	4

Quicksilver Swimming Santa Cruz C B A+			03/18/2023		Soquel
50 Y Free	1:15.85			B: 39.79 (+36.06s \| 47.5%)	6	4		8

50 Y Back	1:15.13			B: 48.59 (+26.54s \| 35.3%)	6	6	4	9

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.