swimstats

Matthew Ko

Mage 10COHIMTPCSEAACCO

322 plausible swims · 56 meets · 2023-03-11 → 2026-08-08

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 17.17 2025-01-05 2025 CO AAC 12&U Sprint Eliminator Invitvenue
50 Freestyle SCY 32.03 BB+0.84s to A·+8.84s to Sectionals 2026-03-01 2026 CO CSI SC Age Group Championshipsfast pool
100 Freestyle SCY 1:11.41 BB+1.22s to A·+20.42s to Sectionals 2026-01-17 2026 HSA TYR Invitationalvenue
200 Freestyle SCY 2:37.34 BB+5.65s to A·+45.55s to Sectionals 2026-01-18 2026 HSA TYR Invitationalvenue
500 Freestyle SCY 7:20.11 BB+36.52s to A·+137.42s to Sectionals 2026-01-16 2026 HSA TYR Invitationalvenue
25 Backstroke SCY 20.16 2024-11-23 2024 CO CUDA Pentathlon XXXVIIvenue
50 Backstroke SCY 38.62 BB+0.83s to A·+14.93s to Futures 2025-01-01 2025 CO CSI Pioneer Open
100 Backstroke SCY 1:29.19 BB+9.30s to A·+33.70s to Sectionals 2025-01-01 2025 CO NJ Pineapple Invite
200 Backstroke SCY 3:10.36 +69.07s to Sectionals 2025-01-01 Colorado Swimming Championship Meet
25 Breaststroke SCY 22.31 2024-11-23 2024 CO CUDA Pentathlon XXXVIIvenue
50 Breaststroke SCY 40.54 A+0.35s to AA·+14.25s to Futures 2026-02-27 2026 CO CSI SC Age Group Championshipsfast pool
100 Breaststroke SCY 1:31.47 A+3.78s to AA·+28.28s to Sectionals 2026-01-18 2026 HSA TYR Invitationalvenue
200 Breaststroke SCY 3:31.50 +74.21s to Sectionals 2025-01-01 2025 CO AQUA, AAC, DSA Tri Meet
25 Butterfly SCY 21.23 2024-11-23 2024 CO CUDA Pentathlon XXXVIIvenue
50 Butterfly SCY 37.51 BB+1.42s to A·+14.62s to Futures 2026-01-04 2026 CO AAC Sprint Eliminator Invitevenue
100 Butterfly SCY 1:57.87 +3.98s to B·+62.68s to Sectionals 2025-01-01 2025 CO ACES Fall High Point Invite
100 Individual Medley SCY 1:24.33 BB+4.44s to A 2026-02-28 2026 CO CSI SC Age Group Championshipsfast pool
200 Individual Medley SCY 2:56.21 BB+2.72s to A·+52.22s to Sectionals 2026-02-27 2026 CO CSI SC Age Group Championshipsfast pool
50 Freestyle LCM 34.71 A+0.32s to AA·+7.72s to Sectionals 2026-01-01 2026 Western Zone Age Group LCM Championships
100 Freestyle LCM 1:16.74 AA+3.45s to AAA·+17.75s to Sectionals 2026-07-26 2026 CO Age Group LCM State Championshipsfast pool
200 Freestyle LCM 2:48.13 A+1.74s to AA·+39.44s to Sectionals 2026-07-25 2026 CO Age Group LCM State Championshipsfast pool
400 Freestyle LCM 6:08.19 BB+1.00s to A·+93.80s to Sectionals 2026-06-28 2026 CO Zone 2 District Meet-AACfast pool
50 Backstroke LCM 44.15 BB+1.06s to A·+16.26s to Futures 2026-06-28 2026 CO Zone 2 District Meet-AACfast pool
100 Backstroke LCM 1:33.57 BB+1.28s to A·+28.38s to Sectionals 2026-07-25 2026 CO Age Group LCM State Championshipsfast pool
200 Backstroke LCM 3:40.95 +79.46s to Sectionals 2025-06-27 2025 CO Zone 2 VMAC Meetvenue
50 Breaststroke LCM 44.21 AA+0.62s to AAA·+13.32s to Futures 2026-01-01 2026 Western Zone Age Group LCM Championships
100 Breaststroke LCM 1:35.44 AAA+3.55s to AAAA·+21.74s to Sectionals 2026-07-26 2026 CO Age Group LCM State Championshipsfast pool
200 Breaststroke LCM 3:40.71 +59.83s to Sectionals 2026-04-26 2026 CO Arena Catch Me If You Canvenue
50 Butterfly LCM 46.22 BB+5.63s to A·+19.93s to Futures 2026-04-25 2026 CO Arena Catch Me If You Canvenue
100 Butterfly LCM 2:20.80 +11.21s to B·+77.71s to Sectionals 2025-05-17 2025 CO ACES Spring Invitevenue
200 Individual Medley LCM 3:10.10 A+0.41s to AA·+45.41s to Sectionals 2026-07-24 2026 CO Age Group LCM State Championshipsfast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 38.08 flying 200 Medley Relay (leg 4) 2025-03-01 2025 CO CSI 14&U Age Group Championships
50 Freestyle SCY 32.07 flying 200 Free Relay (leg 3) 2026-03-01 2026 CO CSI SC Age Group Championships
50 Breaststroke SCY 40.14 flying 200 Medley Relay (leg 2) 2026-02-28 2026 CO CSI SC Age Group Championships
50 Freestyle LCM 33.50 flying 200 Free Relay (leg 2) 2026-08-05 2026 Western Zone Age Group Championships
50 Breaststroke LCM 44.08 flying 200 Medley Relay (leg 2) 2026-07-25 2026 CO Age Group LCM State Championships

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 10 & under · LCM

3167 points (5/5 events)

EventTime Points
200 FR LCM 2:48.13 734
100 BK LCM 1:33.57 624
100 BR LCM 1:35.44 886
100 FL LCM 2:20.80 180
200 IM LCM 3:10.10 743

IMR 10 & under · LCM

3331 points (5/5 events)

EventTime Points
100 FR LCM 1:16.74 752
50 BK LCM 44.15 588
50 BR LCM 44.21 826
50 FL LCM 46.22 422
200 IM LCM 3:10.10 743

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

PR splits

100 Freestyle SCY 1:11.41

33.91
37.50

Front half 33.91s · back half 37.50s

200 Freestyle SCY 2:37.34

34.62
42.56
41.26
38.90

Front half 77.18s · back half 80.16s

500 Freestyle SCY 7:20.11

36.94
44.47
44.33
45.46
47.07
43.41
45.69
46.43
45.19
41.12

Front half 218.27s · back half 221.84s

100 Breaststroke SCY 1:31.47

42.51
48.96

Front half 42.51s · back half 48.96s

100 Individual Medley SCY 1:24.33

41.99
42.34

Front half 41.99s · back half 42.34s

200 Individual Medley SCY 2:56.21

42.18
46.88
48.75
38.40

Front half 89.06s · back half 87.15s

100 Freestyle LCM 1:16.74

36.58
40.16

Front half 36.58s · back half 40.16s

200 Freestyle LCM 2:48.13

38.03
43.51
42.98
43.61

Front half 81.54s · back half 86.59s

400 Freestyle LCM 6:08.19

41.89
46.80
50.19
47.20
47.98
44.45
47.94
41.74

Front half 186.08s · back half 182.11s

100 Backstroke LCM 1:33.57

45.96
47.61

Front half 45.96s · back half 47.61s

200 Backstroke LCM 3:40.95

53.05
57.96
55.72
54.22

Front half 111.01s · back half 109.94s

100 Breaststroke LCM 1:35.44

46.27
49.17

Front half 46.27s · back half 49.17s

200 Breaststroke LCM 3:40.71

48.05
59.47
56.94
56.25

Front half 107.52s · back half 113.19s

200 Individual Medley LCM 3:10.10

46.22
48.78
54.54
40.56

Front half 95.00s · back half 95.10s

Reaction time

fastest 0.69s average 0.730s slowest 0.77s 2 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.

25 Freestyle SCY 17.17 13 swims
50 Freestyle SCY 32.03 20 swims
100 Freestyle SCY 1:11.41 17 swims
200 Freestyle SCY 2:37.34 6 swims
500 Freestyle SCY 7:20.11 1 swim
25 Backstroke SCY 20.16 12 swims
50 Backstroke SCY 38.62 14 swims
100 Backstroke SCY 1:29.19 7 swims
200 Backstroke SCY 3:10.36 1 swim
25 Breaststroke SCY 22.31 7 swims
50 Breaststroke SCY 40.54 23 swims
100 Breaststroke SCY 1:31.47 13 swims
200 Breaststroke SCY 3:31.50 1 swim
25 Butterfly SCY 21.23 5 swims
50 Butterfly SCY 37.51 8 swims
100 Butterfly SCY 1:57.87 1 swim
100 Individual Medley SCY 1:24.33 15 swims
200 Individual Medley SCY 2:56.21 5 swims
50 Freestyle LCM 34.71 25 swims
100 Freestyle LCM 1:16.74 14 swims
200 Freestyle LCM 2:48.13 7 swims
400 Freestyle LCM 6:08.19 2 swims
50 Backstroke LCM 44.15 16 swims
100 Backstroke LCM 1:33.57 12 swims
200 Backstroke LCM 3:40.95 1 swim
50 Breaststroke LCM 44.21 26 swims
100 Breaststroke LCM 1:35.44 24 swims
200 Breaststroke LCM 3:40.71 3 swims
50 Butterfly LCM 46.22 7 swims
100 Butterfly LCM 2:20.80 1 swim
200 Individual Medley LCM 3:10.10 7 swims