Sean Luk

Mage 17CAPCTSM

156 plausible swims · 25 meets · 2024-07-25 → 2026-07-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.02 A+0.93s to AA·+0.83s to Sectionals 2026-02-01 BCA Winter Heatsvenue
100 Freestyle SCY 51.47 A+1.08s to AA·+0.48s to Sectionals 2026-01-31 BCA Winter Heatsvenue
200 Freestyle SCY 1:51.42 A+0.23s to AA·Sectionals ✓+9.83s to Futures 2024-12-15 2024 CA RAA/SCS WAGvenue
500 Freestyle SCY 5:01.31 AA+12.72s to AAA·Sectionals ✓+24.22s to Futures 2025-11-16 BCA Fall Festivalvenue
1000 Freestyle SCY 10:12.87 AA+8.38s to AAA·Sectionals ✓+38.58s to Futures 2025-12-12 2025 CA GWSC Winter Age Group Invitationalvenue
1650 Freestyle SCY 17:20.74 AA+30.95s to AAA·Sectionals ✓+75.25s to Futures 2025-11-15 BCA Fall Festivalvenue
50 Backstroke SCY 27.50 BB+0.71s to A·+3.81s to Futures 2026-01-31 BCA Winter Heatsvenue
100 Backstroke SCY 58.23 BB+0.94s to A·+2.74s to Sectionals 2026-02-01 BCA Winter Heatsvenue
200 Backstroke SCY 2:07.65 BB+2.46s to A·+6.36s to Sectionals 2025-11-15 BCA Fall Festivalvenue
50 Breaststroke SCY 30.05 A+0.46s to AA·+3.76s to Futures 2025-09-20 2025 TSM Aquatics Season Openervenue
100 Breaststroke SCY 1:05.08 BB+0.39s to A·+1.89s to Sectionals 2025-09-21 2025 TSM Aquatics Season Openervenue
200 Breaststroke SCY 2:22.71 BB+1.92s to A·+5.42s to Sectionals 2025-02-22 2025 Pacific Committee SC Championshipvenue
50 Butterfly SCY 26.22 A+0.63s to AA·+3.33s to Futures 2025-09-21 2025 TSM Aquatics Season Openervenue
100 Butterfly SCY 56.97 BB+0.28s to A·+1.78s to Sectionals 2025-02-23 2025 Pacific Committee SC Championshipvenue
200 Butterfly SCY 2:02.36 A+0.17s to AA·Sectionals ✓+8.67s to Futures 2025-12-14 2025 CA GWSC Winter Age Group Invitationalvenue
200 Individual Medley SCY 2:03.68 A+0.79s to AA·Sectionals ✓+9.79s to Futures 2026-03-01 2026 Pacific Committee SC Chmpionshipvenue
400 Individual Medley SCY 4:20.10 AA+7.11s to AAA·Sectionals ✓+13.11s to Futures 2026-02-28 2026 Pacific Committee SC Chmpionshipvenue
50 Freestyle LCM 26.88 A+0.19s to AA·Sectionals ✓+2.29s to Futures 2026-05-02 2026 TORR May Spring Splashvenue
100 Freestyle LCM 58.75 A+0.66s to AA·Sectionals ✓+5.16s to Futures 2025-05-31 CITI Summer Sizzlervenue
200 Freestyle LCM 2:07.66 AA+5.47s to AAA·Sectionals ✓+9.87s to Futures 2026-05-02 2026 TORR May Spring Splashvenue
400 Freestyle LCM 4:28.49 AA+7.90s to AAA·Sectionals ✓+18.50s to Futures 2025-05-31 CITI Summer Sizzlervenue
800 Freestyle LCM 9:25.48 AA+23.99s to AAA·Sectionals ✓+44.79s to Futures 2026-06-14 2026 SCS June AG Invitevenue
1500 Freestyle LCM 17:49.85 AA+30.76s to AAA·Sectionals ✓+70.86s to Futures 2024-07-25 2024 CA SCS/GWSC Summer A/G Champsvenue
50 Breaststroke LCM 32.90 AA+0.81s to AAA·+2.01s to Futures 2026-07-25 2026 CA SCS Summer A/G Champs @ BREAfast pool
100 Breaststroke LCM 1:11.42 AA+2.23s to AAA·Sectionals ✓+3.23s to Futures 2026-06-13 2026 SCS June AG Invitevenue
200 Breaststroke LCM 2:34.13 AA+3.14s to AAA·Sectionals ✓+5.04s to Futures 2026-07-26 2026 CA SCS Summer A/G Champs @ BREAfast pool
50 Butterfly LCM 28.42 AA+0.73s to AAA·+2.13s to Futures 2026-07-26 2026 CA SCS Summer A/G Champs @ BREAfast pool
100 Butterfly LCM 1:01.20 AA+1.51s to AAA·Sectionals ✓+3.21s to Futures 2026-07-25 2026 CA SCS Summer A/G Champs @ BREAfast pool
200 Butterfly LCM 2:15.33 AA+2.14s to AAA·Sectionals ✓+5.14s to Futures 2026-07-23 2026 CA SCS Summer A/G Champs @ BREAfast pool
200 Individual Medley LCM 2:15.94 AAA+5.95s to AAAA·Sectionals ✓+3.15s to Futures 2026-06-12 2026 SCS June AG Invitevenue
400 Individual Medley LCM 4:54.04 AA+1.65s to AAA·Sectionals ✓+11.65s to Futures 2025-06-12 2025 June Age Group Invitevenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.

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 23.21 flying 200 Free Relay (leg 4) 2025-12-12 2025 CA GWSC Winter Age Group Invitational
200 Freestyle SCY 2:02.01 flying 800 Free Relay (leg 3) 2025-02-21 2025 Pacific Committee SC Championship
100 Butterfly SCY 57.82 flying 400 Medley Relay (leg 3) 2025-02-23 2025 Pacific Committee SC Championship
50 Freestyle LCM 27.96 flying 200 Free Relay (leg 2) 2024-07-25 2024 CA SCS/GWSC Summer A/G Champs
100 Freestyle LCM 59.28 flying 400 Medley Relay (leg 4) 2024-07-27 2024 CA SCS/GWSC Summer A/G Champs
200 Freestyle LCM 2:13.58 flying 800 Free Relay (leg 3) 2024-07-26 2024 CA SCS/GWSC Summer A/G Champs
50 Backstroke LCM 35.93 flat 200 Medley Relay 2024-07-25 2024 CA SCS/GWSC Summer A/G Champs
50 Breaststroke LCM 33.67 flying 200 Medley Relay (leg 2) 2025-06-15 2025 June Age Group Invite

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

4163 points (6/6 events)

EventTime Points
500 FR SCY 5:01.31 738
200 BK SCY 2:07.65 603
200 BR SCY 2:22.71 620
200 FL SCY 2:02.36 722
200 IM SCY 2:03.68 714
400 IM SCY 4:20.10 766

IMR 17-18 · SCY

3307 points (5/5 events)

EventTime Points
200 FR SCY 1:51.42 727
100 BK SCY 58.23 591
100 BR SCY 1:05.08 636
100 FL SCY 56.97 639
200 IM SCY 2:03.68 714

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

PR splits

100 Freestyle SCY 51.47

25.04
26.43

Front half 25.04s · back half 26.43s

200 Freestyle SCY 1:51.42

25.98
28.04
28.61
28.79

Front half 54.02s · back half 57.40s

500 Freestyle SCY 5:01.31

27.46
30.09
30.57
30.56
30.68
30.54
30.78
30.76
30.52
29.35

Front half 149.36s · back half 151.95s

1000 Freestyle SCY 10:12.87

26.97
29.24
29.73
30.53
30.50
30.56
30.64
30.73
30.83
31.20
31.35
31.86
31.78
31.73
32.00
31.60
32.18
31.49
30.12
27.83

Front half 300.93s · back half 311.94s

1650 Freestyle SCY 17:20.74

27.32
30.00
30.86
31.42
31.30
31.60
31.80
32.16
31.62
31.76
32.08
32.20
32.15
32.11
32.37
32.44
32.40
31.72
32.06
31.77
32.03
31.90
31.95
31.95
32.35
31.85
31.91
32.02
32.29
31.79
30.98
30.38
28.20

100 Backstroke SCY 58.23

28.59
29.64

Front half 28.59s · back half 29.64s

200 Backstroke SCY 2:07.65

29.94
31.76
32.97
32.98

Front half 61.70s · back half 65.95s

100 Breaststroke SCY 1:05.08

30.76
34.32

Front half 30.76s · back half 34.32s

200 Breaststroke SCY 2:22.71

32.35
35.80
37.50
37.06

Front half 68.15s · back half 74.56s

100 Butterfly SCY 56.97

27.12
29.85

Front half 27.12s · back half 29.85s

200 Butterfly SCY 2:02.36

26.98
30.86
31.90
32.62

Front half 57.84s · back half 64.52s

200 Individual Medley SCY 2:03.68

26.78
33.02
35.45
28.43

Front half 59.80s · back half 63.88s

400 Individual Medley SCY 4:20.10

27.40
31.14
34.95
34.72
36.38
37.52
29.62
28.37

Front half 128.21s · back half 131.89s

200 Freestyle LCM 2:07.66

62.15
65.51

Front half 62.15s · back half 65.51s

400 Freestyle LCM 4:28.49

64.74
68.45
68.39
66.91

Front half 133.19s · back half 135.30s

800 Freestyle LCM 9:25.48

30.35
33.87
34.44
34.88
35.13
35.49
35.83
35.95
35.49
36.06
36.43
37.21
36.21
36.53
36.21
35.40

Front half 275.94s · back half 289.54s

1500 Freestyle LCM 17:49.85

31.42
34.40
35.13
35.22
35.65
35.63
34.90
35.21
35.62
35.26
35.72
35.74
35.76
35.60
35.72
36.04
35.64
36.11
35.88
36.43
35.89
36.81
36.80
36.19
36.60
36.81
36.44
36.28
36.69
34.26

Front half 526.98s · back half 542.87s

100 Breaststroke LCM 1:11.42

33.99
37.43

Front half 33.99s · back half 37.43s

200 Breaststroke LCM 2:34.13 RT 0.68s

34.90
38.74
40.52
39.97

Front half 73.64s · back half 80.49s

100 Butterfly LCM 1:01.20 RT 0.58s

28.77
32.43

Front half 28.77s · back half 32.43s

200 Butterfly LCM 2:15.33 RT 0.70s

30.03
34.70
35.07
35.53

Front half 64.73s · back half 70.60s

200 Individual Medley LCM 2:15.94

29.40
35.46
39.65
31.43

Front half 64.86s · back half 71.08s

400 Individual Medley LCM 4:54.04

31.25
34.91
39.40
38.76
41.35
42.81
33.33
32.23

Front half 144.32s · back half 149.72s

Reaction time

fastest 0.58s average 0.682s slowest 0.74s 12 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 24.02 3 swims
100 Freestyle SCY 51.47 3 swims
200 Freestyle SCY 1:51.42 6 swims
500 Freestyle SCY 5:01.31 6 swims
1000 Freestyle SCY 10:12.87 6 swims
1650 Freestyle SCY 17:20.74 2 swims
50 Backstroke SCY 27.50 2 swims
100 Backstroke SCY 58.23 1 swim
200 Backstroke SCY 2:07.65 4 swims
50 Breaststroke SCY 30.05 3 swims
100 Breaststroke SCY 1:05.08 2 swims
200 Breaststroke SCY 2:22.71 5 swims
50 Butterfly SCY 26.22 3 swims
100 Butterfly SCY 56.97 6 swims
200 Butterfly SCY 2:02.36 9 swims
200 Individual Medley SCY 2:03.68 10 swims
400 Individual Medley SCY 4:20.10 11 swims
50 Freestyle LCM 26.88 1 swim
100 Freestyle LCM 58.75 1 swim
200 Freestyle LCM 2:07.66 3 swims
400 Freestyle LCM 4:28.49 6 swims
800 Freestyle LCM 9:25.48 4 swims
1500 Freestyle LCM 17:49.85 2 swims
50 Breaststroke LCM 32.90 2 swims
100 Breaststroke LCM 1:11.42 8 swims
200 Breaststroke LCM 2:34.13 7 swims
50 Butterfly LCM 28.42 4 swims
100 Butterfly LCM 1:01.20 4 swims
200 Butterfly LCM 2:15.33 12 swims
200 Individual Medley LCM 2:15.94 10 swims
400 Individual Medley LCM 4:54.04 8 swims