swimstats

Sienna Cho

Fage 15EZFGFLMAMDMRSEAGUA

387 plausible swims · 68 meets · 2021-01-01 → 2026-06-20

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 26.21 AA+0.82s to AAA·+1.42s to Sectionals 2026-01-17 2026 MR AGUA MLK Invitational
100 Freestyle SCY 53.78 AAA+1.19s to AAAA·+0.69s to Sectionals 2026-02-15 2026 MR TYR Senior Mets Winter Championship venue
200 Freestyle SCY 1:55.88 AAA+2.39s to AAAA·+0.89s to Sectionals 2026-02-12 2026 MR TYR Senior Mets Winter Championship
500 Freestyle SCY 5:00.47 AAAA·Futures ✓+10.48s to US Open 2025-03-14 2025 MR SC Junior Metropolitan Championships
1000 Freestyle SCY 10:18.14 AAAA·Futures ✓+13.45s to US Open 2026-03-26 2026 EZ North Speedo Short Course Sectionals venue
50 Backstroke SCY 27.82 AAA+0.83s to AAAA·+1.53s to Futures 2026-02-12 2026 MR TYR Senior Mets Winter Championship
100 Backstroke SCY 58.79 AAA+1.80s to AAAA·Sectionals ✓+1.70s to Futures 2026-03-28 2026 EZ North Speedo Short Course Sectionals venue
200 Backstroke SCY 2:02.01 AAAA·Futures ✓+3.82s to US Open 2026-03-29 2026 EZ North Speedo Short Course Sectionals venue
50 Breaststroke SCY 1:23.49 +41.60s to B·+53.70s to Futures 2022-02-11 2022 MR LIE Second Chance Challenge
100 Breaststroke SCY 1:09.01 AA+0.32s to AAA·+0.82s to Sectionals 2026-03-07 2026 MR AGUA Last Chance Invitational venue
200 Breaststroke SCY 2:29.07 AA+1.18s to AAA·Sectionals ✓+6.38s to Futures 2023-02-09 2023 MR AGUA February Time Trials
50 Butterfly SCY 27.42 AAA+0.93s to AAAA·+1.73s to Futures 2026-01-17 2026 MR AGUA MLK Invitational venue
100 Butterfly SCY 59.54 AAA+2.75s to AAAA·+1.05s to Sectionals 2026-03-07 2026 MR AGUA Last Chance Invitational venue
200 Butterfly SCY 2:15.29 AA+3.10s to AAA·+3.20s to Sectionals 2024-03-08 2024 MR Metro SC Junior Mets Championships
100 Individual Medley SCY 1:01.44 2025-10-11 2025 MR AGUA Season Starter Invitational venue
200 Individual Medley SCY 2:06.31 AAAA·Futures ✓+5.22s to US Open 2026-03-29 2026 EZ North Speedo Short Course Sectionals venue
400 Individual Medley SCY 4:28.33 AAAA·Futures ✓+9.54s to US Open 2026-02-13 2026 MR TYR Senior Mets Winter Championship venue
50 Freestyle LCM 29.30 AA+0.31s to AAA·+1.01s to Sectionals 2025-05-24 2025 MR AGUA Memorial Day Invitational
100 Freestyle LCM 59.78 AAA+0.09s to AAAA·Sectionals ✓+0.49s to Futures 2026-06-20 Swim Fort Lauderdale Speedo Summer Classic 26 venue
200 Freestyle LCM 2:06.60 AAAA·Futures ✓+1.61s to US Open 2026-06-18 Swim Fort Lauderdale Speedo Summer Classic 26 venue
400 Freestyle LCM 4:42.57 AAA+10.38s to AAAA·+4.88s to Sectionals 2025-06-19 2025 Synergy Dryland Summer Sizzler
800 Freestyle LCM 9:16.58 AAAA·Sectionals ✓+2.79s to Futures 2026-06-17 Swim Fort Lauderdale Speedo Summer Classic 26 venue
50 Backstroke LCM 32.65 AAA+0.86s to AAAA·+1.76s to Futures 2025-08-06 2025 Summer Elite Showcase venue
100 Backstroke LCM 1:07.67 AAA+1.38s to AAAA·Sectionals ✓+0.88s to Futures 2026-06-20 Swim Fort Lauderdale Speedo Summer Classic 26 venue
200 Backstroke LCM 2:22.52 AAA+0.03s to AAAA·Futures ✓+3.23s to US Open 2026-06-19 Swim Fort Lauderdale Speedo Summer Classic 26 venue
50 Breaststroke LCM 36.95 AAA+1.66s to AAAA·+2.16s to Futures 2025-08-07 2025 Summer Elite Showcase venue
100 Breaststroke LCM 1:19.63 AA+0.94s to AAA·+1.74s to Sectionals 2026-05-23 2026 MR AGUA Memorial Day Invitational fast pool
200 Breaststroke LCM 2:55.97 AA+5.68s to AAA·+6.58s to Sectionals 2026-05-23 2026 MR AGUA Memorial Day Invitational
50 Butterfly LCM 32.91 A+0.22s to AA·+3.42s to Futures 2024-07-31 2024 Summer Elite Showcase
100 Butterfly LCM 1:10.88 A+0.39s to AA·+4.59s to Sectionals 2025-08-08 2025 Summer Elite Showcase venue
200 Butterfly LCM 2:36.58 AA+6.59s to AAA·+7.49s to Sectionals 2026-05-23 2026 MR AGUA Memorial Day Invitational fast pool
200 Individual Medley LCM 2:24.02 AAAA·Futures ✓+2.73s to US Open 2026-06-19 Swim Fort Lauderdale Speedo Summer Classic 26 venue
400 Individual Medley LCM 5:09.58 AAAA·Sectionals ✓+2.29s to Futures 2026-06-18 Swim Fort Lauderdale Speedo Summer Classic 26 venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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.

IMX / IMR

IMX 15-16 · SCY

5527 points (6/6 events)

EventTime Points
500 FR SCY 5:00.47 1003
200 BK SCY 2:02.01 992
200 BR SCY 2:29.07 819
200 FL SCY 2:15.29 777
200 IM SCY 2:06.31 959
400 IM SCY 4:28.33 977

IMR 15-16 · LCM

4399 points (5/5 events)

EventTime Points
200 FR LCM 2:06.60 1006
100 BK LCM 1:07.67 894
100 BR LCM 1:19.63 802
100 FL LCM 1:10.88 711
200 IM LCM 2:24.02 986

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

PR splits

200 Freestyle SCY 1:55.88

26.85
29.16
29.91
29.96

Front half 56.01s · back half 59.87s

500 Freestyle SCY 5:00.47 split/total mismatch

28.03
58.28
89.14
119.73
27.81
57.51
87.54
118.20

1000 Freestyle SCY 10:18.14

28.86
30.79
30.96
31.43
30.93
31.53
31.16
31.76
31.31
31.13
31.45
30.88
30.66
30.79
30.76
30.65
30.62
31.21
31.17
30.09

Front half 309.86s · back half 308.28s

100 Backstroke SCY 58.79 RT 0.61s

28.56
30.23

Front half 28.56s · back half 30.23s

200 Backstroke SCY 2:02.01 RT 0.65s

28.81
30.62
31.13
31.45

Front half 59.43s · back half 62.58s

100 Breaststroke SCY 1:09.01

33.12
35.89

Front half 33.12s · back half 35.89s

100 Butterfly SCY 59.54

28.04
31.50

Front half 28.04s · back half 31.50s

200 Butterfly SCY 2:15.29

31.65
67.66
104.89
143.11
31.14
64.15
105.58
135.29

100 Individual Medley SCY 1:01.44

29.10
32.34

Front half 29.10s · back half 32.34s

200 Individual Medley SCY 2:06.31

27.75
31.91
37.81
28.84

Front half 59.66s · back half 66.65s

400 Individual Medley SCY 4:28.33

28.65
33.00
34.23
34.31
38.88
39.21
30.11
29.94

Front half 130.19s · back half 138.14s

50 Freestyle LCM 29.30 split/total mismatch

39.82
51.29
61.58
45.28

Front half 91.11s · back half -61.81s

200 Freestyle LCM 2:06.60

61.24
65.36

Front half 61.24s · back half 65.36s

400 Freestyle LCM 4:42.57 split/total mismatch

73.56
152.87
31.56
66.72
102.47
139.16

800 Freestyle LCM 9:16.58

66.53
69.70
70.10
70.44
70.58
70.82
70.03
68.38

Front half 276.77s · back half 279.81s

200 Backstroke LCM 2:22.52 RT 0.73s

70.32
72.20

Front half 70.32s · back half 72.20s

100 Breaststroke LCM 1:19.63

38.07
41.56

Front half 38.07s · back half 41.56s

100 Butterfly LCM 1:10.88

33.06
37.82

Front half 33.06s · back half 37.82s

200 Butterfly LCM 2:36.58

34.06
38.36
41.27
42.89

Front half 72.42s · back half 84.16s

200 Individual Medley LCM 2:24.02

68.22
75.80

Front half 68.22s · back half 75.80s

400 Individual Medley LCM 5:09.58

31.92
37.12
42.62
40.84
45.15
45.08
33.62
33.23

Front half 152.50s · back half 157.08s

Reaction time

fastest 0.61s average 0.696s slowest 0.73s 11 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 26.21 6 swims
100 Freestyle SCY 53.78 6 swims
200 Freestyle SCY 1:55.88 11 swims
500 Freestyle SCY 5:00.47 10 swims
1000 Freestyle SCY 10:18.14 3 swims
50 Backstroke SCY 27.82 7 swims
100 Backstroke SCY 58.79 21 swims
200 Backstroke SCY 2:02.01 16 swims
50 Breaststroke SCY 1:23.49 3 swims
100 Breaststroke SCY 1:09.01 9 swims
200 Breaststroke SCY 2:29.07 8 swims
50 Butterfly SCY 27.42 4 swims
100 Butterfly SCY 59.54 12 swims
200 Butterfly SCY 2:15.29 5 swims
100 Individual Medley SCY 1:01.44 3 swims
200 Individual Medley SCY 2:06.31 19 swims
400 Individual Medley SCY 4:28.33 15 swims
50 Freestyle LCM 29.30 8 swims
100 Freestyle LCM 59.78 13 swims
200 Freestyle LCM 2:06.60 17 swims
400 Freestyle LCM 4:42.57 11 swims
800 Freestyle LCM 9:16.58 2 swims
50 Backstroke LCM 32.65 18 swims
100 Backstroke LCM 1:07.67 30 swims
200 Backstroke LCM 2:22.52 30 swims
50 Breaststroke LCM 36.95 11 swims
100 Breaststroke LCM 1:19.63 8 swims
200 Breaststroke LCM 2:55.97 15 swims
50 Butterfly LCM 32.91 8 swims
100 Butterfly LCM 1:10.88 20 swims
200 Butterfly LCM 2:36.58 2 swims
200 Individual Medley LCM 2:24.02 27 swims
400 Individual Medley LCM 5:09.58 9 swims