swimstats

Matthew Ko

Mage 18CAIAIEMTNMPCSISTUTNOVASCSUN-07

200 plausible swims · 36 meets · 2021-08-04 → 2026-08-07

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 21.90 AA+0.21s to AAA·Sectionals ✓+0.61s to Futures 2024-11-08 2024 Legends of Coaching Series-Kevin Perryvenue
100 Freestyle SCY 47.66 AAA+2.17s to AAAA·Sectionals ✓+1.27s to Futures 2024-12-22 2024 CA-NV December Sectionals At BREAvenue
500 Freestyle SCY 4:47.85 AA+1.16s to AAA·Sectionals ✓+10.76s to Futures 2026-01-23 CA 2026 NOVA Janurary Age-Group Intrasquadvenue
50 Backstroke SCY 24.04 AAA+0.85s to AAAA·+0.35s to Futures 2026-01-19 YARDS----2026 Road to Sofivenue
100 Backstroke SCY 51.13 AAA+1.94s to AAAA·Futures ✓+1.94s to Winter JNs 2025-11-22 2025 Southern Pacific Invitevenue
200 Backstroke SCY 1:51.29 AAA+3.00s to AAAA·Futures ✓+3.50s to Winter JNs 2026-01-17 YARDS----2026 Road to Sofivenue
50 Breaststroke SCY 26.60 AAAA·+0.31s to Futures 2025-11-24 2025 Southern Pacific Invitevenue
100 Breaststroke SCY 56.70 AAA+0.51s to AAAA·Futures ✓+1.21s to Winter JNs 2025-01-01 2025 Speedo Winter Junior Championships - West
200 Breaststroke SCY 2:03.34 AAA+1.15s to AAAA·Futures ✓+1.75s to Winter JNs 2025-12-13 2025 West Speedo Winter Juniorsvenue
50 Butterfly SCY 23.08 AAAA·+0.19s to Futures 2025-11-24 2025 Southern Pacific Invitevenue
100 Butterfly SCY 51.26 AAA+2.07s to AAAA·Sectionals ✓+0.67s to Futures 2025-11-22 2025 Southern Pacific Invitevenue
200 Butterfly SCY 1:51.05 AAA+0.36s to AAAA·Futures ✓+1.96s to Winter JNs 2025-11-23 2025 Southern Pacific Invitevenue
200 Individual Medley SCY 1:51.38 AAA+0.49s to AAAA·Futures ✓+1.79s to Winter JNs 2025-11-07 2025 Legends of Coaching Series_Peter Dalandvenue
400 Individual Medley SCY 3:59.53 AAA+0.14s to AAAA·Futures ✓+3.04s to Winter JNs 2025-11-08 2025 Legends of Coaching Series_Peter Dalandvenue
50 Freestyle LCM 25.52 AA+0.43s to AAA·Sectionals ✓+0.93s to Futures 2026-06-06 2026 FAST 4th Annual Jon Urbanchek Invitationvenue
50 Backstroke LCM 27.81 AAAA·Futures ✓+1.12s to Jr Nationals 2026-05-23 2026 CA 30th NOVA-Speedo Grand Challengevenue
100 Backstroke LCM 1:00.85 AAA+2.16s to AAAA·Sectionals ✓+0.26s to Futures 2025-06-15 2025 June Age Group Invitevenue
200 Backstroke LCM 2:11.26 AAA+3.57s to AAAA·Futures ✓+2.97s to Winter JNs 2026-01-17 Finals -2026 Road to Sofi - copiedvenue
50 Breaststroke LCM 29.55 AAAA·Jr Nationals ✓+0.36s to Nationals 2026-07-10 2026 LAI AT USCvenue
100 Breaststroke LCM 1:05.23 AAAA·Winter JNs ✓+0.14s to Jr Nationals 2026-08-03 2026 Speedo Junior National Championshipsvenue
200 Breaststroke LCM 2:21.03 AAAA·Jr Nationals ✓+1.64s to US Open 2026-07-10 2026 LAI AT USCvenue
50 Butterfly LCM 26.83 AAA+0.74s to AAAA·+0.54s to Futures 2026-06-06 2026 FAST 4th Annual Jon Urbanchek Invitationvenue
100 Butterfly LCM 58.30 AAA+2.01s to AAAA·Sectionals ✓+0.31s to Futures 2025-07-25 Futures Time Trials 2025venue
200 Butterfly LCM 2:30.48 BB+6.59s to A·+9.39s to Sectionals 2021-08-07 2021 Western Zone Age Group Championshipsvenue
200 Individual Medley LCM 2:09.83 AAA+0.24s to AAAA·Futures ✓+0.54s to Winter JNs 2025-06-13 2025 June Age Group Invitevenue
400 Individual Medley LCM 4:37.05 AAAA·Futures ✓+1.16s to Winter JNs 2025-06-12 2025 June Age Group Invitevenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.

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
100 Freestyle SCY 47.21 flying 400 Medley Relay (leg 4) 2024-12-20 2024 CA-NV December Sectionals At BREA
100 Freestyle LCM 55.09 flying 400 Free Relay (leg 3) 2026-06-19 2026 CA MVN Fran Crippen SMOC
50 Breaststroke LCM 29.49 flying 200 Medley Relay (leg 2) 2026-08-05 2026 Speedo Junior National Championships
100 Breaststroke LCM 1:05.73 flying 400 Medley Relay (leg 2) 2026-07-10 2026 LAI AT USC

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 17-18 · SCY

5642 points (6/6 events)

EventTime Points
500 FR SCY 4:47.85 847
200 BK SCY 1:51.29 911
200 BR SCY 2:03.34 960
200 FL SCY 1:51.05 966
200 IM SCY 1:51.38 978
400 IM SCY 3:59.53 980

IMR 17-18 · LCM

3732 points (4/5 events — incomplete)

EventTime Points
100 BK LCM 1:00.85 874
100 BR LCM 1:05.23 993
100 FL LCM 58.30 885
200 IM LCM 2:09.83 980
200 FR LCM— 0

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

PR splits

100 Freestyle SCY 47.66 RT 0.57s

22.90
24.76

Front half 22.90s · back half 24.76s

500 Freestyle SCY 4:47.85

24.89
27.50
28.29
28.79
29.11
29.32
29.83
30.18
31.15
28.79

Front half 138.58s · back half 149.27s

100 Backstroke SCY 51.13

24.82
26.31

Front half 24.82s · back half 26.31s

200 Backstroke SCY 1:51.29

26.06
28.24
28.52
28.47

Front half 54.30s · back half 56.99s

100 Breaststroke SCY 56.70

26.49
30.21

Front half 26.49s · back half 30.21s

200 Breaststroke SCY 2:03.34

27.99
31.02
32.06
32.27

Front half 59.01s · back half 64.33s

100 Butterfly SCY 51.26

23.74
27.52

Front half 23.74s · back half 27.52s

200 Butterfly SCY 1:51.05

24.71
28.39
29.11
28.84

Front half 53.10s · back half 57.95s

200 Individual Medley SCY 1:51.38

52.65
32.04
26.69

400 Individual Medley SCY 3:59.53

24.60
29.15
31.94
31.47
32.91
33.55
28.43
27.48

Front half 117.16s · back half 122.37s

100 Backstroke LCM 1:00.85

29.81
31.04

Front half 29.81s · back half 31.04s

200 Backstroke LCM 2:11.26

30.80
33.16
34.05
33.25

Front half 63.96s · back half 67.30s

100 Breaststroke LCM 1:05.23 RT 0.59s

30.69
34.54

Front half 30.69s · back half 34.54s

200 Breaststroke LCM 2:21.03

31.37
35.17
36.64
37.85

Front half 66.54s · back half 74.49s

100 Butterfly LCM 58.30

27.01
31.29

Front half 27.01s · back half 31.29s

200 Butterfly LCM 2:30.48

32.71
37.34
39.48
40.95

Front half 70.05s · back half 80.43s

200 Individual Medley LCM 2:09.83

27.50
34.39
36.85
31.09

Front half 61.89s · back half 67.94s

400 Individual Medley LCM 4:37.05

27.91
32.63
38.26
36.84
37.69
39.34
32.92
31.46

Front half 135.64s · back half 141.41s

Reaction time

fastest 0.56s average 0.589s slowest 0.63s 20 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 21.90 2 swims
100 Freestyle SCY 47.66 3 swims
500 Freestyle SCY 4:47.85 1 swim
50 Backstroke SCY 24.04 2 swims
100 Backstroke SCY 51.13 2 swims
200 Backstroke SCY 1:51.29 4 swims
50 Breaststroke SCY 26.60 3 swims
100 Breaststroke SCY 56.70 12 swims
200 Breaststroke SCY 2:03.34 12 swims
50 Butterfly SCY 23.08 3 swims
100 Butterfly SCY 51.26 3 swims
200 Butterfly SCY 1:51.05 4 swims
200 Individual Medley SCY 1:51.38 11 swims
400 Individual Medley SCY 3:59.53 13 swims
50 Freestyle LCM 25.52 4 swims
50 Backstroke LCM 27.81 5 swims
100 Backstroke LCM 1:00.85 2 swims
200 Backstroke LCM 2:11.26 5 swims
50 Breaststroke LCM 29.55 10 swims
100 Breaststroke LCM 1:05.23 28 swims
200 Breaststroke LCM 2:21.03 25 swims
50 Butterfly LCM 26.83 2 swims
100 Butterfly LCM 58.30 5 swims
200 Butterfly LCM 2:30.48 2 swims
200 Individual Medley LCM 2:09.83 22 swims
400 Individual Medley LCM 4:37.05 12 swims