swimstats

Helen Dai

FCOFGFLMRBDFSLAUNFSLWPRK

188 plausible swims · 28 meets · 2024-02-03 → 2026-09-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 27.01 +0.92s to Sectionals 2025-12-04 RAFC Winter Classic
100 Freestyle SCY 51.47 Sectionals ✓+2.48s to US Open 2025-12-04 RAFC Winter Classic
200 Freestyle SCY 2:18.77 +16.38s to Sectionals 2024-02-03 2024 FAST February Invitevenue
500 Freestyle SCY 5:43.02 +13.63s to Sectionals 2026-09-26 62nd Annual Woodson Invitationalvenue
50 Backstroke SCY 29.90 +5.51s to US Open 2025-12-05 RAFC Winter Classicvenue
100 Backstroke SCY 1:05.27 +3.88s to Sectionals 2025-12-06 RAFC Winter Classicvenue
200 Backstroke SCY 2:34.53 +21.24s to Sectionals 2025-03-09 2025 Florida Swimming FLAGS NORTHvenue
50 Breaststroke SCY 33.01 +5.02s to US Open 2025-12-07 RAFC Winter Classicvenue
100 Breaststroke SCY 1:13.95 +3.36s to Sectionals 2025-12-04 RAFC Winter Classic
200 Breaststroke SCY 2:41.42 +8.63s to Sectionals 2025-12-06 RAFC Winter Classicvenue
50 Butterfly SCY 29.38 +5.29s to US Open 2025-12-04 RAFC Winter Classic
100 Individual Medley SCY 1:06.78 2025-03-07 2025 Florida Swimming FLAGS NORTHvenue
200 Individual Medley SCY 2:22.84 +6.35s to Sectionals 2025-09-27 61st Woodson Invitationalvenue
50 Freestyle LCM 30.70 +1.11s to Sectionals 2026-06-27 2026 FAST Independence Invitationalvenue
100 Freestyle LCM 1:05.18 +0.79s to Sectionals 2026-07-09 2026 FL Summer Age Group Championshipsvenue
200 Freestyle LCM 2:31.74 +12.75s to Sectionals 2026-04-12 2026 Ron Nardozzi Pre-Derby Sprint Invite - cvenue
400 Freestyle LCM 5:20.42 +28.63s to Sectionals 2024-07-26 2024 RAFC Last Splash Invitationalvenue
50 Backstroke LCM 35.38 +6.19s to US Open 2025-07-25 2025 RAFC Last Splash Invitationalvenue
100 Backstroke LCM 1:17.74 +6.35s to Sectionals 2025-07-24 2025 RAFC Last Splash Invitationalvenue
50 Breaststroke LCM 38.62 +5.43s to US Open 2026-05-17 2026 PA Long Course Invitevenue
100 Breaststroke LCM 1:26.78 +5.79s to Sectionals 2026-05-16 2026 PA Long Course Invitevenue
200 Breaststroke LCM 3:07.05 +12.19s to Sectionals 2025-07-25 2025 RAFC Last Splash Invitationalvenue
50 Butterfly LCM 34.31 +6.12s to US Open 2025-05-17 2025 PA Long Course Invitevenue
200 Individual Medley LCM 2:42.16 +5.17s to Sectionals 2025-07-19 2025 Florida Summer Senior Championshipsvenue

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 27.43 flat 200 Free Relay 2025-03-06 2025 Florida Swimming FLAGS NORTH
50 Freestyle SCY 25.37 flying 200 Free Relay (leg 3) 2024-11-16 2024 Patriot Aquatics Winter Invite
50 Backstroke SCY 31.30 flat 200 Medley Relay 2025-03-08 2025 Florida Swimming FLAGS NORTH
50 Breaststroke SCY 33.36 flying 200 Medley Relay (leg 2) 2026-09-26 62nd Annual Woodson Invitational

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

200 Freestyle SCY 2:18.77 RT 0.78s

31.14
35.33
36.39
35.91

Front half 66.47s · back half 72.30s

500 Freestyle SCY 5:43.02

30.36
34.80
35.89
35.52
35.24
35.27
35.18
34.83
34.56
31.37

Front half 171.81s · back half 171.21s

100 Backstroke SCY 1:05.27 RT 0.76s

31.86
33.41

Front half 31.86s · back half 33.41s

200 Backstroke SCY 2:34.53 RT 0.65s

34.71
37.98
41.32
40.52

Front half 72.69s · back half 81.84s

100 Breaststroke SCY 1:13.95 split/total mismatch

29.13
4.87

Front half 29.13s · back half 44.82s

200 Breaststroke SCY 2:41.42

36.02
41.07
41.72
42.61

Front half 77.09s · back half 84.33s

100 Individual Medley SCY 1:06.78 RT 0.74s

31.23
35.55

Front half 31.23s · back half 35.55s

200 Individual Medley SCY 2:22.84

30.80
35.88
42.02
34.14

Front half 66.68s · back half 76.16s

100 Freestyle LCM 1:05.18

31.48
33.70

Front half 31.48s · back half 33.70s

200 Freestyle LCM 2:31.74

74.51
77.23

Front half 74.51s · back half 77.23s

400 Freestyle LCM 5:20.42

34.66
40.36
40.50
42.59
40.13
42.43
39.63
40.12

Front half 158.11s · back half 162.31s

100 Backstroke LCM 1:17.74 RT 0.80s

38.39
39.35

Front half 38.39s · back half 39.35s

100 Breaststroke LCM 1:26.78

40.39
46.39

Front half 40.39s · back half 46.39s

200 Breaststroke LCM 3:07.05

42.70
47.09
48.50
48.76

Front half 89.79s · back half 97.26s

200 Individual Medley LCM 2:42.16 RT 0.78s

35.75
41.31
48.19
36.91

Front half 77.06s · back half 85.10s

Reaction time

fastest 0.65s average 0.771s slowest 0.92s 40 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 27.01 7 swims
100 Freestyle SCY 51.47 5 swims
200 Freestyle SCY 2:18.77 1 swim
500 Freestyle SCY 5:43.02 3 swims
50 Backstroke SCY 29.90 12 swims
100 Backstroke SCY 1:05.27 5 swims
200 Backstroke SCY 2:34.53 1 swim
50 Breaststroke SCY 33.01 13 swims
100 Breaststroke SCY 1:13.95 14 swims
200 Breaststroke SCY 2:41.42 6 swims
50 Butterfly SCY 29.38 6 swims
100 Individual Medley SCY 1:06.78 6 swims
200 Individual Medley SCY 2:22.84 7 swims
50 Freestyle LCM 30.70 8 swims
100 Freestyle LCM 1:05.18 10 swims
200 Freestyle LCM 2:31.74 4 swims
400 Freestyle LCM 5:20.42 1 swim
50 Backstroke LCM 35.38 11 swims
100 Backstroke LCM 1:17.74 10 swims
50 Breaststroke LCM 38.62 16 swims
100 Breaststroke LCM 1:26.78 15 swims
200 Breaststroke LCM 3:07.05 6 swims
50 Butterfly LCM 34.31 7 swims
200 Individual Medley LCM 2:42.16 12 swims