Jonathan Chen

Age: 9 years old
Age Category: 10 & under
Team: California Dolphins Swim Team | Pacific Swimming

Personal Best

Short course distance

Event	Time	Age	Date	Standard	Next Standard	California Dolphins Swim Team	Pacific Swimming	Western Zone	USA
Free 25 Y	17.16	8	07/26/2025			5	106	257	882

Free 50 Y	34.33	9	03/07/2026	BB	A: 31.09 (+3.24s \| 9.4%)	5	166	776	1,000+

Free 100 Y	1:21.77	9	01/31/2026	B	BB: 1:18.89 (+2.88s \| 3.5%)	9	245	995	1,000+

Back 50 Y	41.70	9	02/21/2026	BB	A: 37.59 (+4.11s \| 9.9%)	5	170	760	1,000+

Back 100 Y	1:30.67	9	03/07/2026	B	BB: 1:30.09 (+0.58s \| 0.6%)	4	138	657	1,000+

Breast 25 Y	27.14	8	01/24/2025			17	295	692	1,000+

Breast 50 Y	47.00	9	03/07/2026	BB	A: 42.09 (+4.91s \| 10.4%)	8	184	645	1,000+

Breast 100 Y	1:42.08	9	10/18/2025	BB	A: 1:30.59 (+11.49s \| 11.3%)	5	147	598	1,000+

Fly 50 Y	48.32	8	07/26/2025		B: 46.49 (+1.83s \| 3.8%)	19	367	1,000+	1,000+

IM 100 Y	1:29.15	9	03/07/2026	BB	A: 1:19.69 (+9.46s \| 10.6%)	8	174	620	1,000+

Long course distance

Event	Time	Age	Date	Next Standard	California Dolphins Swim Team	Pacific Swimming	Western Zone	USA
Free 50 M	53.08	8	06/07/2025	B: 43.89 (+9.19s \| 17.3%)	18	388	1,000+	1,000+

Free 100 M	2:03.10	8	06/07/2025	B: 1:40.99 (+22.11s \| 18.0%)	18	373	1,000+	1,000+

Back 50 M	55.60	8	06/07/2025	B: 55.39 (+0.21s \| 0.4%)	13	231	778	1,000+

Back 100 M	2:11.34	8	06/07/2025	B: 1:56.69 (+14.65s \| 11.2%)	10	214	756	1,000+

Breast 50 M	1:04.82	8	06/07/2025	B: 1:00.89 (+3.93s \| 6.1%)	13	272	789	1,000+

Breast 100 M	2:24.62	8	06/07/2025	B: 2:12.89 (+11.73s \| 8.1%)	12	219	626	1,000+

Above are the fastest times that Jonathan Chen has achieved in his swimming career. For each event, you can find Jonathan's best time, the corresponding time standard, as well as how much faster Jonathan needs to be to reach the next level. The last columns provide Jonathan rankings at the team and LSC levels. These rankings are based on the Jonathan's personal best, his 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	34.33	30.99 (+3.34s \| 9.7%)	30.19 (+4.14s \| 12.1%)	26.89 (+7.44s \| 21.7%)	24.79 (+9.54s \| 27.8%)	23.29 (+11.04s \| 32.2%)	22.19 (+12.14s \| 35.4%)	21.29 (+13.04s \| 38.0%)	21.29 (+13.04s \| 38.0%)	20.59 (+13.74s \| 40.0%)	20.09 (+14.24s \| 41.5%)	20.39 (+13.94s \| 40.6%)	N/A	30.49 (+3.84s \| 11.2%)
Free 100 Y	1:21.77	1:09.69 (+12.08s \| 14.8%)	1:07.59 (+14.18s \| 17.3%)	58.69 (+23.08s \| 28.2%)	54.19 (+27.58s \| 33.7%)	51.19 (+30.58s \| 37.4%)	48.19 (+33.58s \| 41.1%)	46.39 (+35.38s \| 43.3%)	46.39 (+35.38s \| 43.3%)	45.09 (+36.68s \| 44.9%)	43.49 (+38.28s \| 46.8%)	44.39 (+37.38s \| 45.7%)	N/A	1:07.19 (+14.58s \| 17.8%)
Back 50 Y	41.70	36.99 (+4.71s \| 11.3%)	35.79 (+5.91s \| 14.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+5.41s \| 13.0%)
Back 100 Y	1:30.67	1:18.89 (+11.78s \| 13.0%)	1:17.09 (+13.58s \| 15.0%)	1:04.69 (+25.98s \| 28.7%)	59.79 (+30.88s \| 34.1%)	55.99 (+34.68s \| 38.2%)	53.89 (+36.78s \| 40.6%)	51.49 (+39.18s \| 43.2%)	51.49 (+39.18s \| 43.2%)	49.39 (+41.28s \| 45.5%)	47.59 (+43.08s \| 47.5%)	48.89 (+41.78s \| 46.1%)	N/A	1:16.59 (+14.08s \| 15.5%)
Breast 50 Y	47.00	40.99 (+6.01s \| 12.8%)	39.99 (+7.01s \| 14.9%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+6.71s \| 14.3%)
Breast 100 Y	1:42.08	1:28.99 (+13.09s \| 12.8%)	1:26.99 (+15.09s \| 14.8%)	1:13.59 (+28.49s \| 27.9%)	1:07.89 (+34.19s \| 33.5%)	1:02.89 (+39.19s \| 38.4%)	1:00.89 (+41.19s \| 40.4%)	57.99 (+44.09s \| 43.2%)	57.99 (+44.09s \| 43.2%)	55.89 (+46.19s \| 45.2%)	54.19 (+47.89s \| 46.9%)	55.29 (+46.79s \| 45.8%)	N/A	1:26.29 (+15.79s \| 15.5%)
Fly 50 Y	48.32	35.39 (+12.93s \| 26.8%)	33.99 (+14.33s \| 29.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+13.63s \| 28.2%)
IM 100 Y	1:29.15	1:18.89 (+10.26s \| 11.5%)	1:16.89 (+12.26s \| 13.8%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+12.16s \| 13.6%)

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	53.08	35.49 (+17.59s \| 33.1%)	34.39 (+18.69s \| 35.2%)	30.19 (+22.89s \| 43.1%)	27.89 (+25.19s \| 47.5%)	26.79 (+26.29s \| 49.5%)	25.89 (+27.19s \| 51.2%)	24.59 (+28.49s \| 53.7%)	24.59 (+28.49s \| 53.7%)	24.29 (+28.79s \| 54.2%)	23.39 (+29.69s \| 55.9%)	23.79 (+29.29s \| 55.2%)	N/A	22.79 (+30.29s \| 57.1%)	34.59 (+18.49s \| 34.8%)
Free 100 M	2:03.10	1:19.49 (+43.61s \| 35.4%)	1:17.09 (+46.01s \| 37.4%)	1:07.39 (+55.71s \| 45.3%)	1:02.19 (+60.91s \| 49.5%)	59.19 (+63.91s \| 51.9%)	56.09 (+67.01s \| 54.4%)	53.59 (+69.51s \| 56.5%)	53.59 (+69.51s \| 56.5%)	52.59 (+70.51s \| 57.3%)	50.99 (+72.11s \| 58.6%)	51.99 (+71.11s \| 57.8%)	N/A	49.99 (+73.11s \| 59.4%)	1:16.89 (+46.21s \| 37.5%)
Back 50 M	55.60	42.99 (+12.61s \| 22.7%)	40.79 (+14.81s \| 26.6%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.59 (+14.01s \| 25.2%)
Back 100 M	2:11.34	1:30.89 (+40.45s \| 30.8%)	1:26.79 (+44.55s \| 33.9%)	1:15.49 (+55.85s \| 42.5%)	1:09.69 (+61.65s \| 46.9%)	1:05.89 (+65.45s \| 49.8%)	1:03.29 (+68.05s \| 51.8%)	1:00.59 (+70.75s \| 53.9%)	1:00.59 (+70.75s \| 53.9%)	58.89 (+72.45s \| 55.2%)	57.29 (+74.05s \| 56.4%)	58.19 (+73.15s \| 55.7%)	N/A	55.69 (+75.65s \| 57.6%)	1:27.69 (+43.65s \| 33.2%)
Breast 50 M	1:04.82	46.99 (+17.83s \| 27.5%)	45.59 (+19.23s \| 29.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+18.53s \| 28.6%)
Breast 100 M	2:24.62	1:42.69 (+41.93s \| 29.0%)	1:39.19 (+45.43s \| 31.4%)	1:25.49 (+59.13s \| 40.9%)	1:18.89 (+65.73s \| 45.5%)	1:13.79 (+70.83s \| 49.0%)	1:11.29 (+73.33s \| 50.7%)	1:08.19 (+76.43s \| 52.8%)	1:08.19 (+76.43s \| 52.8%)	1:06.59 (+78.03s \| 54.0%)	1:04.09 (+80.53s \| 55.7%)	1:05.29 (+79.33s \| 54.9%)	N/A	1:02.19 (+82.43s \| 57.0%)	1:40.19 (+44.43s \| 30.7%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

SRVA Last Chance Meet B BB+

03/07/2026

San Ramon

100 Y IM

1:29.15

-1.34s (New PB)

A: 1:19.69 (+9.46s | 10.6%)

50 Y Free

34.33

-0.78s (New PB)

A: 31.09 (+3.24s | 9.4%)

50 Y Back

42.04

+0.34s

A: 37.59 (+4.45s | 10.6%)

50 Y Breast

47.00

-0.82s (New PB)

A: 42.09 (+4.91s | 10.4%)

100 Y Free

1:24.89

+3.12s

BB: 1:18.89 (+6.00s | 7.1%)

100 Y Back

1:30.67

-2.78s (New PB)

BB: 1:30.09 (+0.58s | 0.6%)

100 Y Breast

1:43.56

+1.48s

BB: 1:42.29 (+1.27s | 1.2%)

Pacific Swimming 10 U SCY Championship

02/21/2026

Cupertino

100 Y Breast

1:43.75

+1.67s

BB: 1:42.29 (+1.46s | 1.4%)

50 Y Back

41.70

-0.51s (New PB)

A: 37.59 (+4.11s | 9.9%)

Zone 2 Winter Championship Meet

01/31/2026

Hayward

100 Y Free

1:21.77

-3.47s (New PB)

BB: 1:18.89 (+2.88s | 3.5%)

50 Y Back

42.21

-1.83s (New PB)

A: 37.59 (+4.62s | 10.9%)

50 Y Free

36.16

+1.05s

BB: 34.59 (+1.57s | 4.3%)

50 Y Breast

47.82

-1.01s (New PB)

BB: 47.69 (+0.13s | 0.3%)

100 Y IM

1:30.49

-0.95s (New PB)

BB: 1:29.69 (+0.80s | 0.9%)

Pacific Swim SC C B BB+ Hosted By TERA

12/05/2025

Concord

50 Y Free

36.62

+1.51s

BB: 34.59 (+2.03s | 5.5%)

50 Y Breast

51.56

+2.73s

BB: 47.69 (+3.87s | 7.5%)

100 Y IM

1:35.55

+4.11s

BB: 1:29.69 (+5.86s | 6.1%)

PC CDST SC C B BB+

10/18/2025

Fremont

100 Y Free

1:25.24

-3.51s (New PB)

BB: 1:18.89 (+6.35s | 7.4%)

50 Y Free

35.11

-1.20s (New PB)

BB: 34.59 (+0.52s | 1.5%)

100 Y IM

1:31.44

-1.91s (New PB)

BB: 1:29.69 (+1.75s | 1.9%)

50 Y Back

48.82

+4.78s

B: 48.29 (+0.53s | 1.1%)

100 Y Breast

1:42.08

-21.75s (New PB)

A: 1:30.59 (+11.49s | 11.3%)

100 Y Back

1:33.45

-6.54s (New PB)

BB: 1:30.09 (+3.36s | 3.6%)

PC LAC C B BB

09/27/2025

Livermore

50 Y Free

38.52

+2.21s

B: 38.19 (+0.33s | 0.9%)

50 Y Fly

50.20

+1.88s

B: 46.49 (+3.71s | 7.4%)

100 Y IM

1:36.69

+3.34s

BB: 1:29.69 (+7.00s | 7.2%)

100 Y Free

1:28.75

-7.49s (New PB)

B: 1:27.99 (+0.76s | 0.9%)

50 Y Breast

49.64

+0.81s

BB: 47.69 (+1.95s | 3.9%)

100 Y Back

1:39.99

-16.91s (New PB)

BB: 1:30.09 (+9.90s | 9.9%)

Zone 2 Summer Championships

07/26/2025

Hayward

50 Y Back

44.04

-9.74s (New PB)

BB: 42.89 (+1.15s | 2.6%)

50 Y Breast

48.83

-14.40s (New PB)

BB: 47.69 (+1.14s | 2.3%)

50 Y Free

36.31

-5.12s (New PB)

BB: 34.59 (+1.72s | 4.7%)

50 Y Fly

48.32

-13.70s (New PB)

B: 46.49 (+1.83s | 3.8%)

100 Y IM

1:33.35

-26.25s (New PB)

BB: 1:29.69 (+3.66s | 3.9%)

25 Y Free

17.16

-2.79s (New PB)

2025 06 07 CDST LC C B BB+ Meet

06/07/2025

Fremont

100 M Breast

2:24.62

B: 2:12.89 (+11.73s | 8.1%)

50 M Breast

1:04.82

B: 1:00.89 (+3.93s | 6.1%)

100 M Free

2:03.10

B: 1:40.99 (+22.11s | 18.0%)

50 M Back

55.60

B: 55.39 (+0.21s | 0.4%)

100 M Back

2:11.34

B: 1:56.69 (+14.65s | 11.2%)

50 M Free

53.08

B: 43.89 (+9.19s | 17.3%)

Alto Rock The Blocks Invitational

03/29/2025

Palo Alto

100 Y Free

1:36.24

-4.72s (New PB)

B: 1:27.99 (+8.25s | 8.6%)

50 Free

45.10

100 Free

51.14

1:36.24

100 Free

1:36.24

100 Y Breast

2:03.83

-9.25s (New PB)

B: 1:54.09 (+9.74s | 7.9%)

50 Breast

58.93

100 Breast

1:04.90

2:03.83

100 Breast

2:03.83

50 Y Back

53.78

-6.77s (New PB)

B: 48.29 (+5.49s | 10.2%)

Swim South Bay

02/08/2025

San Jose

100 Y Free

1:40.96

-1.47s (New PB)

B: 1:27.99 (+12.97s | 12.8%)

50 Y Fly

1:02.02

-5.38s (New PB)

B: 46.49 (+15.53s | 25.0%)

100 Y Back

1:56.90

B: 1:40.69 (+16.21s | 13.9%)

2025 Brian Malick Memorial Z1S Championships

01/24/2025

Morgan Hill

25 Y Breast

27.14

25 Y Free

19.95

50 Y Free

43.91

+2.48s

B: 38.19 (+5.72s | 13.0%)

MBSC GSMY Z1S Race To AGC C B A+

11/15/2024

Morgan Hill

50 Y Fly

1:07.40

B: 46.49 (+20.91s | 31.0%)

50 Y Breast

1:03.23

B: 53.39 (+9.84s | 15.6%)

50 Y Back

1:00.55

B: 48.29 (+12.26s | 20.2%)

100 Y Free

1:42.43

B: 1:27.99 (+14.44s | 14.1%)

100 Y IM

1:59.60

B: 1:39.69 (+19.91s | 16.6%)

100 Y Breast

2:13.08

B: 1:54.09 (+18.99s | 14.3%)

50 Y Free

41.43

B: 38.19 (+3.24s | 7.8%)

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.

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	53.08	35.49 (+17.59s \| 33.1%)	34.39 (+18.69s \| 35.2%)	30.19 (+22.89s \| 43.1%)	27.89 (+25.19s \| 47.5%)	26.79 (+26.29s \| 49.5%)	25.89 (+27.19s \| 51.2%)	24.59 (+28.49s \| 53.7%)	24.59 (+28.49s \| 53.7%)	24.29 (+28.79s \| 54.2%)	23.39 (+29.69s \| 55.9%)	23.79 (+29.29s \| 55.2%)	N/A	22.79 (+30.29s \| 57.1%)	34.59 (+18.49s \| 34.8%)
Free 100 M	2:03.10	1:19.49 (+43.61s \| 35.4%)	1:17.09 (+46.01s \| 37.4%)	1:07.39 (+55.71s \| 45.3%)	1:02.19 (+60.91s \| 49.5%)	59.19 (+63.91s \| 51.9%)	56.09 (+67.01s \| 54.4%)	53.59 (+69.51s \| 56.5%)	53.59 (+69.51s \| 56.5%)	52.59 (+70.51s \| 57.3%)	50.99 (+72.11s \| 58.6%)	51.99 (+71.11s \| 57.8%)	N/A	49.99 (+73.11s \| 59.4%)	1:16.89 (+46.21s \| 37.5%)
Back 50 M	55.60	42.99 (+12.61s \| 22.7%)	40.79 (+14.81s \| 26.6%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.59 (+14.01s \| 25.2%)
Back 100 M	2:11.34	1:30.89 (+40.45s \| 30.8%)	1:26.79 (+44.55s \| 33.9%)	1:15.49 (+55.85s \| 42.5%)	1:09.69 (+61.65s \| 46.9%)	1:05.89 (+65.45s \| 49.8%)	1:03.29 (+68.05s \| 51.8%)	1:00.59 (+70.75s \| 53.9%)	1:00.59 (+70.75s \| 53.9%)	58.89 (+72.45s \| 55.2%)	57.29 (+74.05s \| 56.4%)	58.19 (+73.15s \| 55.7%)	N/A	55.69 (+75.65s \| 57.6%)	1:27.69 (+43.65s \| 33.2%)
Breast 50 M	1:04.82	46.99 (+17.83s \| 27.5%)	45.59 (+19.23s \| 29.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+18.53s \| 28.6%)
Breast 100 M	2:24.62	1:42.69 (+41.93s \| 29.0%)	1:39.19 (+45.43s \| 31.4%)	1:25.49 (+59.13s \| 40.9%)	1:18.89 (+65.73s \| 45.5%)	1:13.79 (+70.83s \| 49.0%)	1:11.29 (+73.33s \| 50.7%)	1:08.19 (+76.43s \| 52.8%)	1:08.19 (+76.43s \| 52.8%)	1:06.59 (+78.03s \| 54.0%)	1:04.09 (+80.53s \| 55.7%)	1:05.29 (+79.33s \| 54.9%)	N/A	1:02.19 (+82.43s \| 57.0%)	1:40.19 (+44.43s \| 30.7%)