Liam Koos

Mage 13CTEZMRNECDOGCT

222 plausible swims · 55 meets · 2022-10-22 → 2026-07-31

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 25.06 AA+0.67s to AAA·+2.67s to Sectionals 2026-01-30 CDOG YMCA State Champsvenue
100 Freestyle SCY 54.89 AA+1.80s to AAA·+6.40s to Sectionals 2025-12-11 2025 NE CRA Winter Invitational
200 Freestyle SCY 2:00.99 AA+4.90s to AAA·+14.70s to Sectionals 2026-01-16 011626sys results
500 Freestyle SCY 5:59.36 BB+17.67s to A·+71.97s to Sectionals 2024-01-03 CDOG January Distance Meetvenue
1650 Freestyle SCY 14:15.72 AAAA·US Open ✓ 2023-11-04 CT CDOG Distance Meetvenue
50 Backstroke SCY 28.85 AA+0.96s to AAA·+5.16s to Futures 2025-12-11 2025 NE CRA Winter Invitational
100 Backstroke SCY 1:02.33 A+1.24s to AA·+7.84s to Sectionals 2026-01-16 011626sys results
200 Backstroke SCY 2:17.37 A+4.18s to AA·+18.78s to Sectionals 2026-03-12 2026 CT SC Age Group Championshipsfast pool
50 Breaststroke SCY 33.77 A+0.48s to AA·+7.48s to Futures 2025-03-13 031325agc results
100 Breaststroke SCY 1:05.28 AAA+1.99s to AAAA·+3.79s to Sectionals 2026-03-12 2026 CT SC Age Group Championshipsfast pool
200 Breaststroke SCY 2:24.60 AA+0.81s to AAA·+9.61s to Sectionals 2026-03-12 2026 CT SC Age Group Championshipsfast pool
50 Butterfly SCY 27.65 AA+0.36s to AAA·+4.76s to Futures 2025-12-11 2025 NE CRA Winter Invitational
100 Butterfly SCY 1:17.84 +4.05s to B·+24.65s to Sectionals 2024-10-19 CT CDOG IMX Meetvenue
200 Butterfly SCY 2:56.10 +10.81s to B·+54.91s to Sectionals 2025-07-11 WHAT SCY Trials/Finals Meetvenue
100 Individual Medley SCY 1:01.71 2025-12-11 2025 NE CRA Winter Invitational
200 Individual Medley SCY 2:10.25 AA+0.86s to AAA·+10.86s to Sectionals 2026-03-12 2026 CT SC Age Group Championshipsfast pool
50 Freestyle LCM 28.88 AA+0.89s to AAA·+3.39s to Sectionals 2026-05-29 MAC May Invitevenue
100 Freestyle LCM 1:01.54 AA+0.05s to AAA·+6.05s to Sectionals 2026-05-29 MAC May Invitevenue
200 Freestyle LCM 2:21.56 A+1.87s to AA·+20.27s to Sectionals 2026-06-06 CDOG June Qualifiervenue
400 Freestyle LCM 4:54.28 AA+11.49s to AAA·+36.69s to Sectionals 2026-05-29 MAC May Invitevenue
50 Backstroke LCM 31.78 AAA+0.89s to AAAA·+3.89s to Futures 2026-07-09 2026 CT LC Senior Championshipvenue
100 Backstroke LCM 1:11.96 A+0.17s to AA·+9.97s to Sectionals 2026-05-15 WHAT May Trials/Finalsvenue
200 Backstroke LCM 2:39.79 A+3.90s to AA·+25.00s to Sectionals 2025-08-07 2025 EZ LC Age Group Championshipvenue
50 Breaststroke LCM 33.66 AAAA·+2.77s to Futures 2026-07-30 2026 EZ LC Age Group Championshipfast pool
100 Breaststroke LCM 1:16.68 AA+0.29s to AAA·+6.99s to Sectionals 2026-07-31 2026 EZ LC Age Group Championshipfast pool
200 Breaststroke LCM 2:56.16 A+0.87s to AA·+23.57s to Sectionals 2026-05-15 WHAT May Trials/Finalsvenue
50 Butterfly LCM 27.77 AAAA·+1.48s to Futures 2026-05-29 MAC May Invitevenue
100 Butterfly LCM 1:08.11 AA+2.02s to AAA·+7.92s to Sectionals 2026-05-15 WHAT May Trials/Finalsvenue
200 Individual Medley LCM 2:31.87 AA+2.28s to AAA·+15.68s to Sectionals 2026-05-15 WHAT May Trials/Finalsvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.

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 Backstroke SCY 28.18 flat 200 Medley Relay 2025-12-12 2025 NE CRA Winter Invitational
50 Freestyle LCM 28.67 flying 200 Free Relay (leg 2) 2025-08-06 2025 EZ LC Age Group Championship
50 Freestyle LCM 28.55 flying 200 Medley Relay (leg 4) 2025-08-09 2025 EZ LC Age Group Championship
100 Freestyle LCM 1:05.01 flying 400 Free Relay (leg 3) 2025-08-08 2025 EZ LC Age Group Championship

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

2917 points (5/6 events — incomplete)

EventTime Points
500 FR SCY 5:59.36 521
200 BK SCY 2:17.37 601
200 BR SCY 2:24.60 746
200 FL SCY 2:56.10 297
200 IM SCY 2:10.25 752
400 IM SCY 0

IMR 13-14 · LCM

3519 points (5/5 events)

EventTime Points
200 FR LCM 2:21.56 655
100 BK LCM 1:11.96 664
100 BR LCM 1:16.68 770
100 FL LCM 1:08.11 693
200 IM LCM 2:31.87 737

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

PR splits

100 Freestyle SCY 54.89 split/total mismatch

26.11
2.67

Front half 26.11s · back half 28.78s

500 Freestyle SCY 5:59.36 split/total mismatch

43.25
40.78
31.99
35.08
36.94
37.21

1650 Freestyle SCY 14:15.72 split/total mismatch

35.86
77.26
119.58
161.96
886.15
916.74
947.33
977.59
1006.95
378.54
418.86
27.77
57.95
88.50
119.23

200 Butterfly SCY 2:56.10 split/total mismatch

33.60
40.59
42.81
41.84
42.64
45.30
50.80
37.36

100 Individual Medley SCY 1:01.71 split/total mismatch

29.08
3.55

Front half 29.08s · back half 32.63s

200 Freestyle LCM 2:21.56 split/total mismatch

33.67
34.75
32.11
35.89
37.33
36.23

400 Freestyle LCM 4:54.28 split/total mismatch

40.92
40.90
41.08
39.83
31.92
37.17
37.70
37.65

200 Backstroke LCM 2:39.79

36.79
40.97
41.90
40.13

Front half 77.76s · back half 82.03s

100 Breaststroke LCM 1:16.68

35.06
41.62

Front half 35.06s · back half 41.62s

200 Breaststroke LCM 2:56.16 split/total mismatch

83.65
8.86

Front half 83.65s · back half 92.51s

200 Individual Medley LCM 2:31.87 split/total mismatch

73.10
5.67

Front half 73.10s · back half 78.77s

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 25.06 11 swims
100 Freestyle SCY 54.89 11 swims
200 Freestyle SCY 2:00.99 6 swims
500 Freestyle SCY 5:59.36 1 swim
1650 Freestyle SCY 14:15.72 2 swims
50 Backstroke SCY 28.85 10 swims
100 Backstroke SCY 1:02.33 9 swims
200 Backstroke SCY 2:17.37 3 swims
50 Breaststroke SCY 33.77 9 swims
100 Breaststroke SCY 1:05.28 15 swims
200 Breaststroke SCY 2:24.60 2 swims
50 Butterfly SCY 27.65 12 swims
100 Butterfly SCY 1:17.84 3 swims
200 Butterfly SCY 2:56.10 1 swim
100 Individual Medley SCY 1:01.71 11 swims
200 Individual Medley SCY 2:10.25 17 swims
50 Freestyle LCM 28.88 9 swims
100 Freestyle LCM 1:01.54 9 swims
200 Freestyle LCM 2:21.56 4 swims
400 Freestyle LCM 4:54.28 4 swims
50 Backstroke LCM 31.78 10 swims
100 Backstroke LCM 1:11.96 9 swims
200 Backstroke LCM 2:39.79 5 swims
50 Breaststroke LCM 33.66 11 swims
100 Breaststroke LCM 1:16.68 8 swims
200 Breaststroke LCM 2:56.16 4 swims
50 Butterfly LCM 27.77 13 swims
100 Butterfly LCM 1:08.11 4 swims
200 Individual Medley LCM 2:31.87 8 swims