Louie Koslin

Mage 15FLKYSESZEXCELSEXCEL

275 plausible swims · 44 meets · 2020-10-16 → 2026-10-25

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 21.39 AAAA·Sectionals ✓+0.10s to Futures 2026-10-25 2026 Pumpkin Spice Splashvenue
100 Freestyle SCY 46.30 AAAA·Futures ✓+1.41s to Winter JNs 2026-10-24 2026 Pumpkin Spice Splashvenue
200 Freestyle SCY 1:40.84 AAAA·Futures ✓+2.45s to Winter JNs 2026-10-25 2026 Pumpkin Spice Splashvenue
500 Freestyle SCY 4:43.08 AAA+0.79s to AAAA·Sectionals ✓+5.99s to Futures 2026-10-24 2026 Pumpkin Spice Splashvenue
1000 Freestyle SCY 10:29.37 AA+13.58s to AAA·+32.18s to Sectionals 2025-11-09 TNAQ 2025 FALL INVITATIONALvenue
50 Backstroke SCY 25.73 AA+0.04s to AAA·+0.04s to Sectionals 2026-10-23 2026 Pumpkin Spice Splashvenue
100 Backstroke SCY 55.06 AA+0.47s to AAA·Sectionals ✓+3.57s to Futures 2026-02-27 2026 SE Southeastern Winter SC Championshipsvenue
200 Backstroke SCY 1:54.13 AAA+0.24s to AAAA·Sectionals ✓+1.34s to Futures 2026-10-25 2026 Pumpkin Spice Splashvenue
50 Breaststroke SCY 29.72 AA+0.23s to AAA·+0.23s to Sectionals 2026-10-23 2026 Pumpkin Spice Splashvenue
100 Breaststroke SCY 1:09.08 BB+1.69s to A·+6.39s to Sectionals 2024-11-16 Tennessee Aquatics Fall Classicvenue
200 Breaststroke SCY 2:27.24 BB+0.25s to A·+7.95s to Sectionals 2024-12-07 2024 Beaman Toyota Meet of Champsvenue
50 Butterfly SCY 23.63 AAAA·Sectionals ✓+0.74s to Futures 2026-09-27 2026 Excel Aquatics Fall Fest Invitevenue
100 Butterfly SCY 52.74 AAA+1.25s to AAAA·+0.05s to Sectionals 2026-10-24 2026 Pumpkin Spice Splashvenue
200 Butterfly SCY 2:24.42 B+1.43s to BB·+25.93s to Sectionals 2024-09-14 2024 SwimIntel Fall Fest Openvenue
100 Individual Medley SCY 1:21.57 2021-11-05 2021 TNAQ November Fall Invite
200 Individual Medley SCY 1:57.31 AAA+1.62s to AAAA·Sectionals ✓+3.42s to Futures 2026-09-26 2026 Excel Aquatics Fall Fest Invitevenue
400 Individual Medley SCY 4:11.68 AAA+2.99s to AAAA·Sectionals ✓+4.69s to Futures 2026-09-25 2026 Excel Aquatics Fall Fest Invitevenue
50 Freestyle LCM 24.37 AAAA·Futures ✓+0.28s to Winter JNs 2026-07-18 2026 SE Southeastern Summer LC Championshipsvenue
100 Freestyle LCM 54.10 AAAA·Sectionals ✓+0.51s to Futures 2026-07-19 2026 SE Southeastern Summer LC Championshipsvenue
200 Freestyle LCM 1:58.31 AAAA·Sectionals ✓+0.52s to Futures 2026-07-17 2026 SE Southeastern Summer LC Championshipsvenue
400 Freestyle LCM 4:14.41 AAAA·Sectionals ✓+4.42s to Futures 2026-07-18 2026 SE Southeastern Summer LC Championshipsvenue
1500 Freestyle LCM 17:33.38 AAA+34.19s to AAAA·+19.19s to Sectionals 2026-05-15 2026 Officially Summer Invitationalvenue
50 Backstroke LCM 29.96 AAA+0.97s to AAAA·Sectionals ✓+2.07s to Futures 2026-06-18 2026 June Classicvenue
100 Backstroke LCM 1:05.21 AA+1.42s to AAA·+0.72s to Sectionals 2025-06-06 2025 Excel Firecracker Invitevenue
200 Backstroke LCM 2:21.41 AA+2.92s to AAA·+0.72s to Sectionals 2025-01-01 2025 hsa june invitational meet results
50 Breaststroke LCM 43.67 +1.08s to B·+9.48s to Sectionals 2023-05-13 2023 Cardinal Aquatics Summer Throwdownslow pool
100 Breaststroke LCM 1:20.66 BB+2.27s to A·+8.27s to Sectionals 2025-05-03 2025 ARENA Long Coursevenue
200 Breaststroke LCM 3:09.69 B+4.00s to BB·+29.30s to Sectionals 2024-06-07 2024 Excel Firecracker Invitevenue
50 Butterfly LCM 27.15 AAAA·Sectionals ✓+0.86s to Futures 2026-07-17 2026 SE Southeastern Summer LC Championshipsvenue
100 Butterfly LCM 1:06.36 A+1.87s to AA·+5.87s to Sectionals 2025-05-18 2025 Excel May Openvenue
200 Individual Medley LCM 2:15.92 AAA+1.83s to AAAA·Sectionals ✓+3.13s to Futures 2026-07-19 2026 SE Southeastern Summer LC Championshipsvenue
400 Individual Medley LCM 5:02.83 AA+0.94s to AAA·+8.94s to Sectionals 2026-04-24 2026 Strong Tower Invitevenue

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 21.51 flat 200 Free Relay 2026-09-27 2026 Excel Aquatics Fall Fest Invite
50 Freestyle SCY 23.45 flying 200 Free Relay (leg 3) 2025-11-08 TNAQ 2025 FALL INVITATIONAL
50 Freestyle LCM 25.57 flat 200 Free Relay 2025-08-02 2025 FL Southern Zone Age Group Championship
50 Freestyle LCM 25.16 flying 200 Free Relay (leg 4) 2025-07-31 2025 FL Southern Zone Age Group Championship
50 Freestyle LCM 25.21 flying 200 Medley Relay (leg 4) 2025-08-01 2025 FL Southern Zone Age Group Championship
100 Freestyle LCM 53.63 flat 400 Free Relay 2026-07-17 2026 SE Southeastern Summer LC Championships
100 Freestyle LCM 54.59 flying 400 Free Relay (leg 4) 2025-07-18 2025 SE Southeastern Summer LC Championships
100 Freestyle LCM 53.14 flying 400 Medley Relay (leg 4) 2026-07-18 2026 SE Southeastern Summer LC Championships
100 Backstroke LCM 1:05.70 flat 400 Medley Relay 2025-07-19 2025 SE Southeastern Summer LC 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 15-16 · SCY

4714 points (6/6 events)

EventTime Points
500 FR SCY 4:43.08 929
200 BK SCY 1:54.13 912
200 BR SCY 2:27.24 616
200 FL SCY 2:24.42 475
200 IM SCY 1:57.31 898
400 IM SCY 4:11.68 884

IMR 15-16 · SCY

4166 points (5/5 events)

EventTime Points
200 FR SCY 1:40.84 1034
100 BK SCY 55.06 780
100 BR SCY 1:09.08 582
100 FL SCY 52.74 872
200 IM SCY 1:57.31 898

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

PR splits

100 Freestyle SCY 46.30

22.16
24.14

Front half 22.16s · back half 24.14s

200 Freestyle SCY 1:40.84

23.38
25.37
25.92
26.17

Front half 48.75s · back half 52.09s

1000 Freestyle SCY 10:29.37 RT 0.69s

27.57
30.98
31.82
32.73
32.45
32.70
32.77
31.49
31.93
31.98
31.93
31.19
31.74
31.80
31.62
31.92
31.23
31.33
30.43
29.76

Front half 316.42s · back half 312.95s

100 Backstroke SCY 55.06

26.76
28.30

Front half 26.76s · back half 28.30s

200 Backstroke SCY 1:54.13

27.19
28.84
29.15
28.95

Front half 56.03s · back half 58.10s

100 Breaststroke SCY 1:09.08

32.60
36.48

Front half 32.60s · back half 36.48s

200 Breaststroke SCY 2:27.24

33.57
36.52
39.42
37.73

Front half 70.09s · back half 77.15s

100 Butterfly SCY 52.74

24.81
27.93

Front half 24.81s · back half 27.93s

200 Butterfly SCY 2:24.42

31.17
37.59
38.04
37.62

Front half 68.76s · back half 75.66s

200 Individual Medley SCY 1:57.31

24.29
30.62
34.93
27.47

Front half 54.91s · back half 62.40s

400 Individual Medley SCY 4:11.68

24.80
30.40
31.54
30.12
37.34
39.05
29.50
28.93

Front half 116.86s · back half 134.82s

100 Freestyle LCM 54.10

25.64
28.46

Front half 25.64s · back half 28.46s

200 Freestyle LCM 1:58.31

27.35
29.93
30.61
30.42

Front half 57.28s · back half 61.03s

400 Freestyle LCM 4:14.41

28.32
32.32
32.55
33.42
32.02
32.64
31.93
31.21

Front half 126.61s · back half 127.80s

1500 Freestyle LCM 17:33.38

64.51
70.83
70.70
71.23
71.81
70.45
70.44
70.84
70.82
70.85
70.53
71.35
72.19
70.28
66.55

200 Backstroke LCM 2:21.41

32.44
35.82
36.81
36.34

Front half 68.26s · back half 73.15s

200 Breaststroke LCM 3:09.69

41.09
49.16
51.36
48.08

Front half 90.25s · back half 99.44s

100 Butterfly LCM 1:06.36

29.69
36.67

Front half 29.69s · back half 36.67s

200 Individual Medley LCM 2:15.92

63.98
105.66
135.92
135.92

400 Individual Medley LCM 5:02.83

29.41
36.13
39.41
39.37
44.00
45.66
33.72
35.13

Front half 144.32s · back half 158.51s

Reaction time

fastest 0.69s average 0.747s slowest 0.83s 6 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 21.39 15 swims
100 Freestyle SCY 46.30 14 swims
200 Freestyle SCY 1:40.84 14 swims
500 Freestyle SCY 4:43.08 5 swims
1000 Freestyle SCY 10:29.37 1 swim
50 Backstroke SCY 25.73 7 swims
100 Backstroke SCY 55.06 12 swims
200 Backstroke SCY 1:54.13 10 swims
50 Breaststroke SCY 29.72 3 swims
100 Breaststroke SCY 1:09.08 4 swims
200 Breaststroke SCY 2:27.24 4 swims
50 Butterfly SCY 23.63 6 swims
100 Butterfly SCY 52.74 3 swims
200 Butterfly SCY 2:24.42 1 swim
100 Individual Medley SCY 1:21.57 2 swims
200 Individual Medley SCY 1:57.31 7 swims
400 Individual Medley SCY 4:11.68 2 swims
50 Freestyle LCM 24.37 28 swims
100 Freestyle LCM 54.10 28 swims
200 Freestyle LCM 1:58.31 23 swims
400 Freestyle LCM 4:14.41 11 swims
1500 Freestyle LCM 17:33.38 2 swims
50 Backstroke LCM 29.96 10 swims
100 Backstroke LCM 1:05.21 20 swims
200 Backstroke LCM 2:21.41 11 swims
50 Breaststroke LCM 43.67 3 swims
100 Breaststroke LCM 1:20.66 6 swims
200 Breaststroke LCM 3:09.69 1 swim
50 Butterfly LCM 27.15 4 swims
100 Butterfly LCM 1:06.36 2 swims
200 Individual Medley LCM 2:15.92 11 swims
400 Individual Medley LCM 5:02.83 1 swim