Jeen Choi

Mage 14STWTAAAANISTUNUN-01UN-03

294 plausible swims · 43 meets · 2024-02-11 → 2026-06-17

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	24.16	AA+0.67s to AAA·+1.27s to Sectionals	2025-12-12	2025 ST AAAA NS Winter Wonderland fast pool
100 Freestyle	SCY	52.36	AA+1.17s to AAA·+2.87s to Sectionals	2026-02-28	2026 ST AAAA SC Senior Champs venue
200 Freestyle	SCY	1:55.96	AA+3.97s to AAA·+7.47s to Sectionals	2025-12-14	2025 ST AAAA NS Winter Wonderland fast pool
500 Freestyle	SCY	5:33.96	BB+3.17s to A·+40.67s to Sectionals	2025-11-08	2025 ST TXLA 11&O November Unclassified Invit venue
50 Backstroke	SCY	28.88	A+1.19s to AA·+2.49s to Sectionals	2024-03-01	2024 Texas Age Group Swimming Short Course Ch venue
100 Backstroke	SCY	58.29	AA+2.20s to AAA·+1.80s to Sectionals	2026-02-28	2026 ST AAAA SC Senior Champs venue
200 Backstroke	SCY	2:11.98	A+4.49s to AA·+6.59s to Sectionals	2025-12-13	2025 ST AAAA NS Winter Wonderland fast pool
50 Breaststroke	SCY	35.10	BB+2.01s to A·+4.81s to Sectionals	2024-03-08	2024 AAAA SW SCY End of Season Splash venue
100 Breaststroke	SCY	1:13.07	BB+3.98s to A·+8.78s to Sectionals	2025-11-09	2025 ST TXLA 11&O November Unclassified Invit venue
200 Breaststroke	SCY	2:46.18	B+3.39s to BB·+23.39s to Sectionals	2025-03-01	2025 AAAA SW End-of-Season Splash venue
50 Butterfly	SCY	26.41	AA+0.32s to AAA·+1.52s to Sectionals	2025-10-25	2025 ST AAAA NS Spooky Splash venue
100 Butterfly	SCY	55.01	AAA+2.12s to AAAA·+1.42s to Sectionals	2026-03-01	2026 ST AAAA SC Senior Champs venue
200 Butterfly	SCY	2:03.55	AA+0.26s to AAA·+2.06s to Sectionals	2026-02-27	2026 ST AAAA SC Senior Champs venue
100 Individual Medley	SCY	1:05.44		2024-03-09	2024 AAAA SW SCY End of Season Splash venue
200 Individual Medley	SCY	2:10.36	A+0.57s to AA·+7.97s to Sectionals	2026-01-17	2026 ST AAAA NS Frostbite venue
400 Individual Medley	SCY	4:57.09	BB+7.60s to A·+38.80s to Sectionals	2025-03-02	2025 AAAA SW End-of-Season Splash venue
50 Freestyle	LCM	26.81	AAA+1.12s to AAAA·+0.52s to Sectionals	2026-06-14	2026 ST NIST George Block Invitational fast pool
100 Freestyle	LCM	58.31	AAA+1.92s to AAAA·+1.62s to Sectionals	2026-06-11	2026 ST NIST George Block Invitational fast pool
200 Freestyle	LCM	2:14.33	AA+5.44s to AAA·+10.34s to Sectionals	2026-05-02	2026 ST AAAA 23rd Annual Cinco de Mayo venue
400 Freestyle	LCM	4:53.42	A+5.93s to AA·+30.33s to Sectionals	2026-05-17	2026 ST NIST Salute to the Troops venue
50 Backstroke	LCM	31.17	AA+0.08s to AAA·+0.18s to Sectionals	2026-06-12	2026 ST NIST George Block Invitational fast pool
100 Backstroke	LCM	1:10.30	A+1.61s to AA·+4.11s to Sectionals	2026-05-03	2026 ST AAAA 23rd Annual Cinco de Mayo venue
200 Backstroke	LCM	2:38.11	BB+2.12s to A·+13.82s to Sectionals	2025-06-07	COM Conoco Phillips West Texas Invite LC25 venue
50 Breaststroke	LCM	39.99	BB+2.20s to A·+4.90s to Sectionals	2026-06-17	2026 ST NIST June Race Day venue
100 Breaststroke	LCM	1:27.96	B+0.67s to BB·+13.77s to Sectionals	2024-06-08	2024 June Jamboree venue
200 Breaststroke	LCM	3:10.61	B+1.22s to BB·+26.22s to Sectionals	2024-06-06	2024 ST AAAA NS Summer Race Night 2 venue
50 Butterfly	LCM	28.84	AAA+0.85s to AAAA·+0.35s to Sectionals	2026-05-06	2026 ST NIST May Race Night venue
100 Butterfly	LCM	1:02.45	AAA+2.16s to AAAA·+0.86s to Sectionals	2026-06-12	2026 ST NIST George Block Invitational fast pool
200 Butterfly	LCM	2:29.78	A+1.89s to AA·+9.59s to Sectionals	2026-06-13	2026 ST NIST George Block Invitational fast pool
200 Individual Medley	LCM	2:35.11	A+4.82s to AA·+13.92s to Sectionals	2026-06-14	2026 ST NIST George Block Invitational fast pool
400 Individual Medley	LCM	5:31.54	A+10.05s to AA·+32.95s to Sectionals	2026-05-06	2026 ST NIST May Race Night venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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.

Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	SCY	27.35	flat	200 Free Relay	2024-02-17	2024 ST STAGS Championships
50 Freestyle	SCY	25.75	flying	200 Free Relay (leg 2)	2024-03-02	2024 Texas Age Group Swimming Short Course Ch
100 Freestyle	SCY	56.58	flat	400 Free Relay	2024-02-16	2024 ST STAGS Championships
100 Freestyle	SCY	56.64	flying	400 Free Relay (leg 2)	2024-03-01	2024 Texas Age Group Swimming Short Course Ch
50 Backstroke	SCY	29.08	flat	200 Medley Relay	2024-03-02	2024 Texas Age Group Swimming Short Course Ch
50 Butterfly	SCY	27.74	flying	200 Medley Relay (leg 3)	2024-02-18	2024 ST STAGS Championships
100 Butterfly	SCY	57.34	flying	400 Medley Relay (leg 3)	2026-02-22	2026 ST AAAA SC STAGS

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

IMX / IMR

IMX 13-14 · SCY

4051 points (6/6 events)

Event	Time	Points
500 FR SCY	5:33.96	650
200 BK SCY	2:11.98	678
200 BR SCY	2:46.18	492
200 FL SCY	2:03.55	862
200 IM SCY	2:10.36	750
400 IM SCY	4:57.09	619

IMR 13-14 · SCY

3757 points (5/5 events)

Event	Time	Points
200 FR SCY	1:55.96	783
100 BK SCY	58.29	772
100 BR SCY	1:13.07	564
100 FL SCY	55.01	888
200 IM SCY	2:10.36	750

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 52.36

12.18

13.09

13.84

13.25

Front half 25.27s · back half 27.09s

200 Freestyle SCY 1:55.96

26.26

29.10

30.26

30.34

Front half 55.36s · back half 60.60s

500 Freestyle SCY 5:33.96

28.51

32.39

33.79

34.26

34.38

34.14

34.20

33.79

34.35

34.15

Front half 163.33s · back half 170.63s

100 Backstroke SCY 58.29

13.49

14.68

15.05

15.07

Front half 28.17s · back half 30.12s

200 Backstroke SCY 2:11.98

30.66

33.36

34.26

33.70

Front half 64.02s · back half 67.96s

100 Breaststroke SCY 1:13.07

34.52

38.55

Front half 34.52s · back half 38.55s

200 Breaststroke SCY 2:46.18

36.88

43.19

43.23

42.88

Front half 80.07s · back half 86.11s

100 Butterfly SCY 55.01

11.99

13.94

14.11

14.97

Front half 25.93s · back half 29.08s

200 Butterfly SCY 2:03.55

11.90

15.05

14.57

15.87

15.43

16.90

15.99

17.84

Front half 57.39s · back half 66.16s

100 Individual Medley SCY 1:05.44

28.88

36.56

Front half 28.88s · back half 36.56s

200 Individual Medley SCY 2:10.36

26.98

33.39

39.08

30.91

Front half 60.37s · back half 69.99s

400 Individual Medley SCY 4:57.09

29.22

34.08

38.28

36.85

44.00

44.24

36.29

34.13

Front half 138.43s · back half 158.66s

100 Freestyle LCM 58.31

28.21

30.10

Front half 28.21s · back half 30.10s

200 Freestyle LCM 2:14.33

63.67

70.66

Front half 63.67s · back half 70.66s

400 Freestyle LCM 4:53.42 · 210.0 min after 50 Freestyle

32.09

36.71

38.46

38.61

38.46

38.11

36.40

34.58

Front half 145.87s · back half 147.55s

200 Backstroke LCM 2:38.11

36.16

39.99

41.24

40.72

Front half 76.15s · back half 81.96s

100 Breaststroke LCM 1:27.96

41.82

46.14

Front half 41.82s · back half 46.14s

200 Breaststroke LCM 3:10.61

91.73

98.88

Front half 91.73s · back half 98.88s

100 Butterfly LCM 1:02.45

28.92

33.53

Front half 28.92s · back half 33.53s

200 Butterfly LCM 2:29.78

31.37

38.68

39.06

40.67

Front half 70.05s · back half 79.73s

200 Individual Medley LCM 2:35.11

30.79

40.26

48.48

35.58

Front half 71.05s · back half 84.06s

400 Individual Medley LCM 5:31.54

70.14

85.91

99.13

76.36

Front half 156.05s · back half 175.49s

Reaction time

fastest 0.62s average 0.657s slowest 0.71s 4 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.

Progression

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

50 Freestyle SCY 24.16 18 swims

100 Freestyle SCY 52.36 15 swims

200 Freestyle SCY 1:55.96 13 swims

500 Freestyle SCY 5:33.96 6 swims

50 Backstroke SCY 28.88 5 swims

100 Backstroke SCY 58.29 18 swims

200 Backstroke SCY 2:11.98 12 swims

50 Breaststroke SCY 35.10 1 swim

100 Breaststroke SCY 1:13.07 3 swims

200 Breaststroke SCY 2:46.18 2 swims

50 Butterfly SCY 26.41 5 swims

100 Butterfly SCY 55.01 19 swims

200 Butterfly SCY 2:03.55 16 swims

100 Individual Medley SCY 1:05.44 1 swim

200 Individual Medley SCY 2:10.36 11 swims

400 Individual Medley SCY 4:57.09 2 swims

50 Freestyle LCM 26.81 18 swims

100 Freestyle LCM 58.31 18 swims

200 Freestyle LCM 2:14.33 11 swims

400 Freestyle LCM 4:53.42 5 swims

50 Backstroke LCM 31.17 9 swims

100 Backstroke LCM 1:10.30 16 swims

200 Backstroke LCM 2:38.11 8 swims

50 Breaststroke LCM 39.99 3 swims

100 Breaststroke LCM 1:27.96 6 swims

200 Breaststroke LCM 3:10.61 2 swims

50 Butterfly LCM 28.84 9 swims

100 Butterfly LCM 1:02.45 20 swims

200 Butterfly LCM 2:29.78 8 swims

200 Individual Medley LCM 2:35.11 10 swims

400 Individual Medley LCM 5:31.54 4 swims