Preston Bao

Age: 9 years old
Age Category: 10 & under
Team: Rancho San Dieguito | San Diego-Imperial Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

San Diego-Imperial Swimming

Rancho San Dieguito

Free 50 Y

38.22

11/08/2025

B: 38.19 (+0.03s | 0.1%)

Free 100 Y

1:27.83

09/20/2025

BB: 1:18.89 (+8.94s | 10.2%)

50 Free

39.56

100 Free

48.27

1:27.83

100 Free

1:27.83

Free 200 Y

3:14.36

11/08/2025

B: 3:09.49 (+4.87s | 2.5%)

50 Free

44.06

100 Free

49.88

1:33.94

100 Free

1:33.94

150 Free

49.18

2:23.12

200 Free

51.24

3:14.36

100 Free

1:40.42

Back 50 Y

49.00

08/02/2025

B: 48.29 (+0.71s | 1.4%)

Back 100 Y

1:46.11

10/11/2025

B: 1:40.69 (+5.42s | 5.1%)

50 Back

52.55

100 Back

53.56

1:46.11

100 Back

1:46.11

Breast 50 Y

51.76

10/11/2025

BB: 47.69 (+4.07s | 7.9%)

Breast 100 Y

1:55.19

08/02/2025

B: 1:54.09 (+1.10s | 1.0%)

Fly 25 Y

30.39

10/12/2024

Fly 50 Y

58.65

10/11/2025

B: 46.49 (+12.16s | 20.7%)

IM 100 Y

1:45.84

10/11/2025

B: 1:39.69 (+6.15s | 5.8%)

50 IM

53.09

100 IM

52.75

1:45.84

100 IM

1:45.84

IM 200 Y

3:45.10

11/08/2025

B: 3:38.59 (+6.51s | 2.9%)

50 Fly

1:00.73

100 Back

58.24

1:58.97

100 IM

1:58.97

200 Free

1:46.13

3:45.10

100 IM

1:46.13

Long course distance

Event	Time		Age	Date	Standard	Next Standard	San Diego-Imperial Swimming	Rancho San Dieguito

Above are the fastest times that Preston Bao has achieved in his swimming career. For each event, you can find Preston's best time, the corresponding time standard, as well as how much faster Preston needs to be to reach the next level. The last columns provide Preston rankings at the team and LSC levels. These rankings are based on the Preston'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	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	38.22	22.19 (+16.03s \| 41.9%)	21.29 (+16.93s \| 44.3%)	21.29 (+16.93s \| 44.3%)	20.59 (+17.63s \| 46.1%)	20.09 (+18.13s \| 47.4%)	20.39 (+17.83s \| 46.7%)	30.49 (+7.73s \| 20.2%)
Free 100 Y	1:27.83	48.19 (+39.64s \| 45.1%)	46.39 (+41.44s \| 47.2%)	46.39 (+41.44s \| 47.2%)	45.09 (+42.74s \| 48.7%)	43.49 (+44.34s \| 50.5%)	44.39 (+43.44s \| 49.5%)	1:07.19 (+20.64s \| 23.5%)
Free 200 Y	3:14.36	1:45.79 (+88.57s \| 45.6%)	1:41.59 (+92.77s \| 47.7%)	1:41.59 (+92.77s \| 47.7%)	1:38.79 (+95.57s \| 49.2%)	1:36.49 (+97.87s \| 50.4%)	1:38.09 (+96.27s \| 49.5%)	2:24.99 (+49.37s \| 25.4%)
Back 50 Y	49.00	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+12.71s \| 25.9%)
Back 100 Y	1:46.11	53.89 (+52.22s \| 49.2%)	51.49 (+54.62s \| 51.5%)	51.49 (+54.62s \| 51.5%)	49.39 (+56.72s \| 53.5%)	47.59 (+58.52s \| 55.2%)	48.89 (+57.22s \| 53.9%)	1:16.59 (+29.52s \| 27.8%)
Breast 50 Y	51.76	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+11.47s \| 22.2%)
Breast 100 Y	1:55.19	1:00.89 (+54.30s \| 47.1%)	57.99 (+57.20s \| 49.7%)	57.99 (+57.20s \| 49.7%)	55.89 (+59.30s \| 51.5%)	54.19 (+61.00s \| 53.0%)	55.29 (+59.90s \| 52.0%)	1:26.29 (+28.90s \| 25.1%)
Fly 50 Y	58.65	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+23.96s \| 40.9%)
IM 100 Y	1:45.84	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+28.85s \| 27.3%)
IM 200 Y	3:45.10	1:58.19 (+106.91s \| 47.5%)	1:53.89 (+111.21s \| 49.4%)	1:53.89 (+111.21s \| 49.4%)	1:50.09 (+115.01s \| 51.1%)	1:46.39 (+118.71s \| 52.7%)	1:48.89 (+116.21s \| 51.6%)	2:46.19 (+58.91s \| 26.2%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional

Progression

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Meets

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2025 SI SDSA All Ages NTS Meet

11/08/2025

Coronado

50 Y Fly

1:01.07

+2.42s

B: 46.49 (+14.58s | 23.9%)

200 Y Free

3:14.36

B: 3:09.49 (+4.87s | 2.5%)

50 Free

44.06

100 Free

49.88

1:33.94

100 Free

1:33.94

150 Free

49.18

2:23.12

200 Free

51.24

3:14.36

100 Free

1:40.42

100 Y Back

1:53.07

+6.96s

B: 1:40.69 (+12.38s | 10.9%)

50 Back

54.43

100 Back

58.64

1:53.07

100 Back

1:53.07

200 Y IM

3:45.10

B: 3:38.59 (+6.51s | 2.9%)

50 Fly

1:00.73

100 Back

58.24

1:58.97

100 IM

1:58.97

200 Free

1:46.13

3:45.10

100 IM

1:46.13

50 Y Free

38.22

-1.35s (New PB)

B: 38.19 (+0.03s | 0.1%)

100 Y Free

1:28.91

+1.08s

B: 1:27.99 (+0.92s | 1.0%)

50 Free

40.59

100 Free

48.32

1:28.91

100 Free

1:28.91

50 Y Back

54.32

+5.32s

B: 48.29 (+6.03s | 11.1%)

50 Y Breast

52.22

+0.46s

BB: 47.69 (+4.53s | 8.7%)

2025 SI RSD All Ages B C Meet

10/11/2025

Solana Beach

100 Y Breast

1:56.89

+1.70s

B: 1:54.09 (+2.80s | 2.4%)

50 Breast

56.08

100 Breast

1:00.81

1:56.89

100 Breast

1:56.89

50 Y Free

42.55

+2.98s

B: 38.19 (+4.36s | 10.2%)

100 Y Back

1:46.11

B: 1:40.69 (+5.42s | 5.1%)

50 Back

52.55

100 Back

53.56

1:46.11

100 Back

1:46.11

100 Y Free

1:31.23

+3.40s

B: 1:27.99 (+3.24s | 3.6%)

50 Free

42.71

100 Free

48.52

1:31.23

100 Free

1:31.23

50 Y Fly

58.65

+0.00s

B: 46.49 (+12.16s | 20.7%)

50 Y Back

49.34

+0.34s

B: 48.29 (+1.05s | 2.1%)

50 Y Breast

51.76

-0.27s (New PB)

BB: 47.69 (+4.07s | 7.9%)

100 Y IM

1:45.84

-4.47s (New PB)

B: 1:39.69 (+6.15s | 5.8%)

50 IM

53.09

100 IM

52.75

1:45.84

100 IM

1:45.84

2025 SI PS Freestyle Festival Sat

09/20/2025

Poway

100 Y Free

1:27.83

-0.23s (New PB)

BB: 1:18.89 (+8.94s | 10.2%)

50 Free

39.56

100 Free

48.27

1:27.83

100 Free

1:27.83

50 Y Free

39.57

-0.16s (New PB)

B: 38.19 (+1.38s | 3.5%)

2025 SI WIND All Ages NTS Wrap Up Meet

08/02/2025

La Jolla

50 Y Free

39.73

-1.00s (New PB)

B: 38.19 (+1.54s | 3.9%)

50 Y Back

49.00

-4.97s (New PB)

B: 48.29 (+0.71s | 1.4%)

50 Y Fly

58.65

-12.38s (New PB)

B: 46.49 (+12.16s | 20.7%)

100 Y Breast

1:55.19

-10.53s (New PB)

B: 1:54.09 (+1.10s | 1.0%)

100 Y Free

1:28.06

-3.71s (New PB)

B: 1:27.99 (+0.07s | 0.1%)

100 Y IM

1:50.31

-16.15s (New PB)

B: 1:39.69 (+10.62s | 9.6%)

50 Y Breast

52.03

-1.98s (New PB)

BB: 47.69 (+4.34s | 8.3%)

2025 SI FAST RISING STARS 2

06/28/2025

Fallbrook

50 Y Back

53.97

-2.90s (New PB)

B: 48.29 (+5.68s | 10.5%)

50 Y Breast

54.01

-9.51s (New PB)

B: 53.39 (+0.62s | 1.1%)

100 Y Free

1:31.77

-25.94s (New PB)

B: 1:27.99 (+3.78s | 4.1%)

50 Y Free

40.73

-7.71s (New PB)

B: 38.19 (+2.54s | 6.2%)

2025 SI JBST NTS All Ages

03/15/2025

La Jolla

50 Y Free

48.44

-2.95s (New PB)

B: 38.19 (+10.25s | 21.2%)

50 Y Fly

1:11.03

B: 46.49 (+24.54s | 34.5%)

100 Y IM

2:06.46

B: 1:39.69 (+26.77s | 21.2%)

100 Y Breast

2:05.72

B: 1:54.09 (+11.63s | 9.3%)

2025 SI SBA All Ages NTS Meet Feb 7 9

02/07/2025

Chula Vista

50 Y Back

56.87

-11.61s (New PB)

B: 48.29 (+8.58s | 15.1%)

50 Y Free

51.39

-3.11s (New PB)

B: 38.19 (+13.20s | 25.7%)

2024 SI SBA All Ages B C BB Max Meet Nov 2 3

11/02/2024

Chula Vista

25 Y Fly

36.51

+6.12s

50 Y Free

55.49

+0.99s

B: 38.19 (+17.30s | 31.2%)

50 Y Back

1:08.48

B: 48.29 (+20.19s | 29.5%)

100 Y Free

1:57.71

-1.95s (New PB)

B: 1:27.99 (+29.72s | 25.2%)

50 Free

54.03

100 Free

1:03.68

1:57.71

100 Free

1:57.71

50 Y Breast

1:09.55

+6.03s

B: 53.39 (+16.16s | 23.2%)

2024 SI SBA All Ages B C Meet Oct 12 13

10/12/2024

Chula Vista

25 Y Fly

30.39

100 Y Free

1:59.66

B: 1:27.99 (+31.67s | 26.5%)

50 Free

54.82

100 Free

1:04.84

1:59.66

100 Free

1:59.66

50 Y Breast

1:03.52

B: 53.39 (+10.13s | 15.9%)

2024 SI PS Freestyle Festival Sun

09/22/2024

Poway

50 Y Free

54.50

B: 38.19 (+16.31s | 29.9%)

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.