Emma Guo

Age: 9 years old
Age Category: 10 & under
Team: Otter Swim Club | Pacific Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Otter Swim Club

Pacific Swimming

Western Zone

USA

Free 25 Y

18.56

04/26/2025

231

564

1,000+

Free 50 Y

36.64

11/14/2025

BB: 35.99 (+0.65s | 1.8%)

283

1,000+

Free 100 Y

1:22.11

02/07/2026

BB: 1:21.09 (+1.02s | 1.2%)

245

952

1,000+

50 Free

39.13

100 Free

42.98

1:22.11

100 Free

1:22.11

Free 200 Y

3:21.42

12/06/2025

BB: 3:00.59 (+20.83s | 10.3%)

249

1,000+

Back 25 Y

22.65

03/22/2025

224

608

1,000+

Back 50 Y

42.51

02/07/2026

A: 37.99 (+4.52s | 10.6%)

203

867

1,000+

Breast 25 Y

25.69

02/22/2025

230

508

1,000+

Breast 50 Y

48.94

02/07/2026

BB: 48.69 (+0.25s | 0.5%)

280

977

1,000+

Breast 100 Y

1:45.11

10/25/2025

A: 1:33.59 (+11.52s | 11.0%)

198

767

1,000+

Fly 25 Y

19.98

07/19/2025

108

224

746

Fly 50 Y

40.26

01/24/2026

A: 36.99 (+3.27s | 8.1%)

170

556

1,000+

Fly 100 Y

1:45.06

11/14/2025

BB: 1:41.39 (+3.67s | 3.5%)

136

580

1,000+

IM 100 Y

1:31.92

02/07/2026

A: 1:22.09 (+9.83s | 10.7%)

230

786

1,000+

50 IM

42.34

100 IM

49.58

1:31.92

100 IM

1:31.92

Long course distance

Event	Time	Age	Date	Standard	Next Standard	Otter Swim Club	Pacific Swimming	Western Zone	USA
Free 50 M	44.32	8	06/06/2025	B	BB: 40.89 (+3.43s \| 7.7%)	5	191	689	1,000+

Free 100 M	1:40.05	8	04/19/2025	B	BB: 1:32.99 (+7.06s \| 7.1%)	4	175	582	1,000+

Back 50 M	52.88	8	04/19/2025	B	BB: 49.69 (+3.19s \| 6.0%)	8	190	695	1,000+

Breast 50 M	59.28	8	05/16/2025	B	BB: 55.49 (+3.79s \| 6.4%)	6	202	623	1,000+

Fly 50 M	53.22	8	04/19/2025	B	BB: 48.09 (+5.13s \| 9.6%)	5	162	516	918

Above are the fastest times that Emma Guo has achieved in her swimming career. For each event, you can find Emma's best time, the corresponding time standard, as well as how much faster Emma needs to be to reach the next level. The last columns provide Emma rankings at the team and LSC levels. These rankings are based on the Emma'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	36.64	31.39 (+5.25s \| 14.3%)	30.59 (+6.05s \| 16.5%)	29.99 (+6.65s \| 18.1%)	27.69 (+8.95s \| 24.4%)	26.09 (+10.55s \| 28.8%)	24.89 (+11.75s \| 32.1%)	23.89 (+12.75s \| 34.8%)	23.89 (+12.75s \| 34.8%)	23.29 (+13.35s \| 36.4%)	22.59 (+14.05s \| 38.3%)	22.79 (+13.85s \| 37.8%)	N/A	30.89 (+5.75s \| 15.7%)
Free 100 Y	1:22.11	1:10.49 (+11.62s \| 14.2%)	1:08.09 (+14.02s \| 17.1%)	1:04.99 (+17.12s \| 20.9%)	59.99 (+22.12s \| 26.9%)	56.59 (+25.52s \| 31.1%)	53.99 (+28.12s \| 34.2%)	51.89 (+30.22s \| 36.8%)	51.89 (+30.22s \| 36.8%)	50.39 (+31.72s \| 38.6%)	49.29 (+32.82s \| 40.0%)	49.69 (+32.42s \| 39.5%)	N/A	1:08.19 (+13.92s \| 17.0%)
Free 200 Y	3:21.42	2:35.59 (+45.83s \| 22.8%)	2:29.49 (+51.93s \| 25.8%)	2:19.99 (+61.43s \| 30.5%)	2:09.29 (+72.13s \| 35.8%)	2:02.69 (+78.73s \| 39.1%)	1:56.29 (+85.13s \| 42.3%)	1:52.89 (+88.53s \| 44.0%)	1:52.29 (+89.13s \| 44.3%)	1:49.09 (+92.33s \| 45.8%)	1:46.69 (+94.73s \| 47.0%)	1:47.39 (+94.03s \| 46.7%)	N/A	2:29.09 (+52.33s \| 26.0%)
Back 50 Y	42.51	36.69 (+5.82s \| 13.7%)	35.49 (+7.02s \| 16.5%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+6.02s \| 14.2%)
Breast 50 Y	48.94	41.69 (+7.25s \| 14.8%)	40.29 (+8.65s \| 17.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+8.55s \| 17.5%)
Breast 100 Y	1:45.11	1:31.89 (+13.22s \| 12.6%)	1:28.99 (+16.12s \| 15.3%)	1:21.99 (+23.12s \| 22.0%)	1:15.69 (+29.42s \| 28.0%)	1:10.49 (+34.62s \| 32.9%)	1:07.59 (+37.52s \| 35.7%)	1:05.49 (+39.62s \| 37.7%)	1:05.49 (+39.62s \| 37.7%)	1:03.09 (+42.02s \| 40.0%)	1:01.79 (+43.32s \| 41.2%)	1:02.79 (+42.32s \| 40.3%)	N/A	1:27.99 (+17.12s \| 16.3%)
Fly 50 Y	40.26	36.19 (+4.07s \| 10.1%)	33.99 (+6.27s \| 15.6%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+5.17s \| 12.8%)
Fly 100 Y	1:45.06	1:24.09 (+20.97s \| 20.0%)	1:20.49 (+24.57s \| 23.4%)	1:10.69 (+34.37s \| 32.7%)	1:05.29 (+39.77s \| 37.9%)	1:01.39 (+43.67s \| 41.6%)	59.19 (+45.87s \| 43.7%)	56.59 (+48.47s \| 46.1%)	56.59 (+48.47s \| 46.1%)	54.69 (+50.37s \| 47.9%)	53.49 (+51.57s \| 49.1%)	53.99 (+51.07s \| 48.6%)	N/A	1:20.19 (+24.87s \| 23.7%)
IM 100 Y	1:31.92	1:20.09 (+11.83s \| 12.9%)	1:17.09 (+14.83s \| 16.1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+14.23s \| 15.5%)

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	44.32	35.59 (+8.73s \| 19.7%)	34.79 (+9.53s \| 21.5%)	34.29 (+10.03s \| 22.6%)	31.69 (+12.63s \| 28.5%)	29.89 (+14.43s \| 32.6%)	28.69 (+15.63s \| 35.3%)	27.39 (+16.93s \| 38.2%)	27.39 (+16.93s \| 38.2%)	26.89 (+17.43s \| 39.3%)	26.29 (+18.03s \| 40.7%)	26.59 (+17.73s \| 40.0%)	N/A	25.69 (+18.63s \| 42.0%)	35.19 (+9.13s \| 20.6%)
Free 100 M	1:40.05	1:20.19 (+19.86s \| 19.9%)	1:17.59 (+22.46s \| 22.4%)	1:14.09 (+25.96s \| 25.9%)	1:08.39 (+31.66s \| 31.6%)	1:04.99 (+35.06s \| 35.0%)	1:01.89 (+38.16s \| 38.1%)	59.29 (+40.76s \| 40.7%)	59.29 (+40.76s \| 40.7%)	58.19 (+41.86s \| 41.8%)	56.99 (+43.06s \| 43.0%)	57.59 (+42.46s \| 42.4%)	N/A	55.79 (+44.26s \| 44.2%)	1:17.49 (+22.56s \| 22.5%)
Back 50 M	52.88	42.89 (+9.99s \| 18.9%)	40.49 (+12.39s \| 23.4%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.79 (+11.09s \| 21.0%)
Breast 50 M	59.28	47.49 (+11.79s \| 19.9%)	45.89 (+13.39s \| 22.6%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.19 (+13.09s \| 22.1%)
Fly 50 M	53.22	40.79 (+12.43s \| 23.4%)	38.49 (+14.73s \| 27.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	39.69 (+13.53s \| 25.4%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

Alto Feb 7 8 CBA Valentines Day

02/07/2026

Palo Alto

100 Y IM

1:31.92

-2.25s (New PB)

A: 1:22.09 (+9.83s | 10.7%)

50 IM

42.34

100 IM

49.58

1:31.92

100 IM

1:31.92

50 Y Free

36.87

+0.23s

BB: 35.99 (+0.88s | 2.4%)

100 Y Free

1:22.11

-0.13s (New PB)

BB: 1:21.09 (+1.02s | 1.2%)

50 Free

39.13

100 Free

42.98

1:22.11

100 Free

1:22.11

50 Y Breast

48.94

-0.14s (New PB)

BB: 48.69 (+0.25s | 0.5%)

50 Y Back

42.51

-1.31s (New PB)

A: 37.99 (+4.52s | 10.6%)

50 Y Fly

40.44

+0.18s

A: 36.99 (+3.45s | 8.5%)

2026 Zone 1 North Championships

01/24/2026

Morgan Hill

50 Y Fly

40.26

-0.44s (New PB)

A: 36.99 (+3.27s | 8.1%)

SSF NEW YEAR SPLASH C B A+

01/10/2026

Pacifica

100 Y Free

1:23.71

+1.47s

BB: 1:21.09 (+2.62s | 3.1%)

50 Y Breast

50.38

+1.30s

BB: 48.69 (+1.69s | 3.4%)

50 Y Back

43.82

-1.21s (New PB)

BB: 43.29 (+0.53s | 1.2%)

100 Y IM

1:34.29

+0.12s

BB: 1:33.19 (+1.10s | 1.2%)

50 Y Free

38.19

+1.55s

BB: 35.99 (+2.20s | 5.8%)

50 Y Fly

41.00

+0.30s

A: 36.99 (+4.01s | 9.8%)

DCD Winter Holiday Splash CBA+

12/06/2025

Daly City

50 Y Back

45.26

+0.23s

BB: 43.29 (+1.97s | 4.4%)

100 Y IM

1:35.77

+1.60s

BB: 1:33.19 (+2.58s | 2.7%)

50 Y Free

37.63

+0.99s

BB: 35.99 (+1.64s | 4.4%)

200 Y Free

3:21.42

BB: 3:00.59 (+20.83s | 10.3%)

100 Y Free

1:25.87

+3.63s

BB: 1:21.09 (+4.78s | 5.6%)

50 Y Breast

49.84

+0.76s

BB: 48.69 (+1.15s | 2.3%)

PSL Pumpkin Spice Lovers 25 129

11/14/2025

Pacfica

100 Y Fly

1:45.06

BB: 1:41.39 (+3.67s | 3.5%)

100 Y Free

1:22.24

-3.75s (New PB)

BB: 1:21.09 (+1.15s | 1.4%)

50 Y Breast

50.00

+0.92s

BB: 48.69 (+1.31s | 2.6%)

50 Y Back

45.35

+0.32s

BB: 43.29 (+2.06s | 4.5%)

50 Y Fly

40.70

-1.01s (New PB)

A: 36.99 (+3.71s | 9.1%)

50 Y Free

36.64

-0.79s (New PB)

BB: 35.99 (+0.65s | 1.8%)

2025 SUNN Fall Classic

10/25/2025

Sunnyvale

50 Y Back

45.03

-9.01s (New PB)

BB: 43.29 (+1.74s | 3.9%)

100 Y Breast

1:45.11

A: 1:33.59 (+11.52s | 11.0%)

50 Y Free

37.43

-1.78s (New PB)

BB: 35.99 (+1.44s | 3.8%)

50 Y Breast

49.08

-3.31s (New PB)

BB: 48.69 (+0.39s | 0.8%)

50 Y Fly

42.89

+1.18s

BB: 42.69 (+0.20s | 0.5%)

100 Y IM

1:34.17

-7.96s (New PB)

BB: 1:33.19 (+0.98s | 1.0%)

2025 DACA SC CBA Meet

10/11/2025

Saratoga

50 Y Fly

41.71

-4.81s (New PB)

A: 36.99 (+4.72s | 11.3%)

100 Y Free

1:25.99

-2.73s (New PB)

BB: 1:21.09 (+4.90s | 5.7%)

50 Y Breast

53.66

+1.27s

BB: 48.69 (+4.97s | 9.3%)

2025 DACA SC CBA Meet

07/19/2025

Saratoga

100 Y Free

1:28.72

-5.86s (New PB)

BB: 1:21.09 (+7.63s | 8.6%)

25 Y Fly

19.98

-0.27s (New PB)

50 Y Breast

53.61

+1.22s

BB: 48.69 (+4.92s | 9.2%)

50 Y Free

39.21

-3.28s (New PB)

BB: 35.99 (+3.22s | 8.2%)

50 Y Fly

46.52

BB: 42.69 (+3.83s | 8.2%)

100 Y IM

1:42.13

-7.41s (New PB)

BB: 1:33.19 (+8.94s | 8.8%)

2025 DACA LC CBA+ Meet

06/06/2025

Cupertino

50 M Free

44.32

+0.00s

BB: 40.89 (+3.43s | 7.7%)

50 M Fly

54.77

+1.55s

B: 54.49 (+0.28s | 0.5%)

100 M Free

1:41.37

+1.32s

BB: 1:32.99 (+8.38s | 8.3%)

50 M Breast

1:02.39

+3.11s

B: 1:02.19 (+0.20s | 0.3%)

50 M Back

55.59

+2.71s

BB: 49.69 (+5.90s | 10.6%)

2025 DACA LC CBA Meet

05/16/2025

Saratoga

50 M Free

44.32

-0.51s (New PB)

BB: 40.89 (+3.43s | 7.7%)

100 M Free

1:43.91

+3.86s

BB: 1:32.99 (+10.92s | 10.5%)

50 M Fly

55.44

+2.22s

B: 54.49 (+0.95s | 1.7%)

50 M Breast

59.28

-0.59s (New PB)

BB: 55.49 (+3.79s | 6.4%)

50 M Back

58.94

+6.06s

B: 55.79 (+3.15s | 5.3%)

Pacific Swimming 10 Under SC Championships

04/26/2025

Palo Alto

100 Y Free

1:34.58

-0.81s (New PB)

B: 1:30.79 (+3.79s | 4.0%)

50 Free

44.97

100 Free

49.61

1:34.58

100 Free

1:34.58

25 Y Free

18.56

-0.41s (New PB)

25 Y Fly

20.25

-2.01s (New PB)

50 Y Breast

52.39

-1.20s (New PB)

BB: 48.69 (+3.70s | 7.1%)

Alto Spring Jam Meet

04/19/2025

Fremont

50 M Breast

59.87

BB: 55.49 (+4.38s | 7.3%)

50 M Back

52.88

BB: 49.69 (+3.19s | 6.0%)

50 M Free

44.83

BB: 40.89 (+3.94s | 8.8%)

100 M Free

1:40.05

BB: 1:32.99 (+7.06s | 7.1%)

50 M Fly

53.22

BB: 48.09 (+5.13s | 9.6%)

PSL SC CBA+ Meet

03/22/2025

Pacifica

25 Y Back

22.65

-1.66s (New PB)

100 Y Free

1:35.39

B: 1:30.79 (+4.60s | 4.8%)

50 Y Free

42.49

-1.61s (New PB)

B: 39.79 (+2.70s | 6.4%)

100 Y IM

1:49.54

-3.77s (New PB)

B: 1:44.29 (+5.25s | 4.8%)

50 Y Breast

54.51

+0.92s

BB: 48.69 (+5.82s | 10.7%)

25 Y Fly

22.26

-0.70s (New PB)

BAC C B A Meet

02/22/2025

Burlingame

25 Y Free

18.97

-0.92s (New PB)

100 Y IM

1:53.31

B: 1:44.29 (+9.02s | 8.0%)

50 IM

55.47

100 IM

57.84

1:53.31

100 IM

1:53.31

25 Y Back

24.31

-0.34s (New PB)

25 Y Fly

22.96

-0.73s (New PB)

50 Y Breast

53.59

-3.31s (New PB)

BB: 48.69 (+4.90s | 9.1%)

25 Y Breast

25.69

-0.93s (New PB)

Z1N SC Championship

01/25/2025

Sunnyvale

25 Y Back

25.11

+0.46s

50 Y Free

47.13

+3.03s

B: 39.79 (+7.34s | 15.6%)

25 Y Fly

23.69

-0.88s (New PB)

25 Y Free

20.46

+0.57s

25 Y Breast

26.62

-0.16s (New PB)

South San Francisco New Year Splash C B A+

01/11/2025

Pacifica

50 Y Free

44.10

-1.58s (New PB)

B: 39.79 (+4.31s | 9.8%)

25 Y Fly

24.57

-7.70s (New PB)

50 Y Back

54.04

B: 48.59 (+5.45s | 10.1%)

25 Y Back

24.65

-0.27s (New PB)

25 Y Free

19.89

-1.06s (New PB)

25 Y Breast

26.78

-1.89s (New PB)

2024 DCD Winter Holiday Spalsh

12/14/2024

Daly City

50 Y Breast

56.90

B: 54.59 (+2.31s | 4.1%)

25 Y Back

24.92

25 Y Free

20.95

-0.82s (New PB)

25 Y Breast

28.67

-0.14s (New PB)

50 Y Free

45.68

-5.95s (New PB)

B: 39.79 (+5.89s | 12.9%)

2024 DACA SC CBA Meet

11/16/2024

Saratoga

25 Y Free

21.77

-0.78s (New PB)

25 Y Breast

28.81

-1.95s (New PB)

2024 SUNN Fall Classic CBA+ Meet

10/26/2024

Sunnyval

50 Y Free

51.63

B: 39.79 (+11.84s | 22.9%)

25 Y Fly

32.27

25 Y Free

22.55

-0.81s (New PB)

25 Y Breast

30.76

-6.23s (New PB)

South San Francisco C B A+

09/21/2024

Pacifica

25 Y Breast

36.99

25 Y Free

23.36

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.