swimstats

Derek Liu

Mage 17EZFLMDMRNCNECRA

386 plausible swims · 54 meets · 2020-11-27 → 2026-08-02

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 23.49 A+0.40s to AA·+1.10s to Sectionals 2025-02-09 2025 NE CRA Last Chance February Invitationalvenue
100 Freestyle SCY 50.13 AA+1.84s to AAA·+1.64s to Sectionals 2026-02-06 2026 NE CRA Last Chance February Invitational
200 Freestyle SCY 1:45.34 AAA+3.85s to AAAA·Sectionals ✓+3.75s to Futures 2025-07-31 2025 NE CRA August End of Season Invite
500 Freestyle SCY 4:40.53 AAA+5.04s to AAAA·Sectionals ✓+3.44s to Futures 2026-07-30 2026 NE CRA Prelim/final SCY meetvenue
1000 Freestyle SCY 9:59.66 AAA+22.67s to AAAA·+0.17s to Sectionals 2025-12-11 2025 NE CRA Winter Invitational
1650 Freestyle SCY 17:03.87 AA+14.08s to AAA·+19.88s to Sectionals 2024-10-26 2024 NE CRA Oct Distance & Specialtyvenue
50 Backstroke SCY 28.70 BB+1.91s to A·+5.01s to Futures 2025-10-12 2025 NE CRA October Distance & Specialty Meetvenue
100 Backstroke SCY 56.38 A+1.49s to AA·+1.89s to Sectionals 2024-08-01 2024 NE CRA August End of Season Invite
200 Backstroke SCY 2:02.89 A+2.90s to AA·+4.30s to Sectionals 2025-01-05 2025 NE PHX Boston Winter Classicvenue
100 Breaststroke SCY 1:16.32 +0.83s to B·+14.83s to Sectionals 2023-03-17 2023 NE CRA End of Season Meet
200 Breaststroke SCY 2:28.43 BB+7.64s to A·+13.44s to Sectionals 2024-11-17 2024 NE CRA November Distance & Specialtyvenue
50 Butterfly SCY 23.60 AAA+0.21s to AAAA·+0.71s to Futures 2025-12-11 2025 NE CRA Winter Invitational
100 Butterfly SCY 50.93 AAA+1.34s to AAAA·Sectionals ✓+0.34s to Futures 2025-07-31 2025 NE CRA August End of Season Invite
200 Butterfly SCY 1:49.99 AAAA·Futures ✓+0.90s to Winter JNs 2026-03-28 2026 EZ North Speedo Short Course Sectionalsvenue
200 Individual Medley SCY 1:56.35 AAA+4.16s to AAAA·Sectionals ✓+2.46s to Futures 2026-08-01 2026 NE CRA Prelim/final SCY meetvenue
400 Individual Medley SCY 4:06.45 AAA+4.96s to AAAA·Futures ✓+9.96s to Winter JNs 2026-03-27 2026 EZ North Speedo Short Course Sectionalsvenue
50 Freestyle LCM 27.36 A+0.67s to AA·+1.87s to Sectionals 2026-05-09 2026 NE CRA MIT Team Specialty LC Meetvenue
100 Freestyle LCM 59.91 A+1.82s to AA·+4.42s to Sectionals 2025-06-27 EAC Independence Invitationalvenue
200 Freestyle LCM 2:03.64 AA+1.45s to AAA·+2.35s to Sectionals 2024-07-19 2024 NE BGSC LCM 11-14 Championshipsvenue
400 Freestyle LCM 4:21.84 AA+1.25s to AAA·+4.25s to Sectionals 2026-07-11 2026 NE CS LCM Senior Championshipsvenue
800 Freestyle LCM 8:59.71 AAA+22.82s to AAAA·+1.32s to Sectionals 2025-06-26 EAC Independence Invitationalvenue
1500 Freestyle LCM 17:45.31 AA+26.22s to AAA·+26.32s to Sectionals 2025-07-10 2025 NE CS LCM Senior Championshipsvenue
100 Backstroke LCM 1:09.96 BB+2.47s to A·+7.97s to Sectionals 2025-05-10 2025 NE CRA & USC May LC Specialty Meetvenue
200 Backstroke LCM 2:31.29 BB+4.20s to A·+16.50s to Sectionals 2025-05-11 2025 NE CRA & USC May LC Specialty Meetvenue
200 Breaststroke LCM 3:05.54 B+7.05s to BB·+32.95s to Sectionals 2024-05-11 2024 NE CRA & USC May LC Specialty Meetvenue
50 Butterfly LCM 27.76 AA+0.07s to AAA·+1.47s to Futures 2025-07-24 2025 TYR FUTURES OCALAvenue
100 Butterfly LCM 59.49 AAA+2.50s to AAAA·Sectionals ✓+1.50s to Futures 2025-07-25 2025 TYR FUTURES OCALAvenue
200 Butterfly LCM 2:07.66 AAA+0.47s to AAAA·Futures ✓+1.27s to Winter JNs 2026-07-11 2026 NE CS LCM Senior Championshipsvenue
200 Individual Medley LCM 2:19.29 AA+3.10s to AAA·+3.10s to Sectionals 2026-01-01 2026 NE Swimming LC Senior Championships - Brown University, S#: NE26-0709CSvenue
400 Individual Medley LCM 4:46.74 AAA+7.65s to AAAA·Sectionals ✓+4.35s to Futures 2026-07-10 2026 NE CS LCM Senior Championshipsvenue

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 24.20 flat 200 Free Relay 2024-02-23 2024 NE CRA 11-14 SCY Age Group Championship
50 Freestyle SCY 22.87 flying 200 Free Relay (leg 2) 2025-12-14 2025 NE CRA Winter Invitational
100 Freestyle SCY 51.35 flying 400 Free Relay (leg 4) 2024-12-13 2024 NBAC 50th Annual Christmas Invitational
200 Freestyle SCY 1:45.16 flying 800 Free Relay (leg 2) 2026-03-27 2026 EZ North Speedo Short Course Sectionals
50 Butterfly SCY 26.42 flying 200 Medley Relay (leg 3) 2024-02-23 2024 NE CRA 11-14 SCY Age Group Championship
100 Butterfly SCY 51.96 flying 400 Medley Relay (leg 3) 2026-03-29 2026 EZ North Speedo Short Course Sectionals
50 Freestyle LCM 25.96 flying 200 Free Relay (leg 2) 2025-07-23 2025 TYR FUTURES OCALA
100 Freestyle LCM 59.95 flat 400 Free Relay 2024-07-21 2024 NE BGSC LCM 11-14 Championships
100 Freestyle LCM 56.28 flying 400 Free Relay (leg 3) 2026-07-12 2026 NE CS LCM Senior Championships
200 Freestyle LCM 2:04.85 flat 800 Free Relay 2024-07-18 2024 NE BGSC LCM 11-14 Championships
50 Butterfly LCM 27.84 flying 200 Medley Relay (leg 3) 2025-07-23 2025 TYR FUTURES OCALA
100 Butterfly LCM 57.87 flying 400 Medley Relay (leg 3) 2025-07-26 2025 TYR FUTURES OCALA

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

4894 points (6/6 events)

EventTime Points
500 FR SCY 4:40.53 915
200 BK SCY 2:02.89 676
200 BR SCY 2:28.43 551
200 FL SCY 1:49.99 994
200 IM SCY 1:56.35 858
400 IM SCY 4:06.45 900

IMR 17-18 · SCY

3659 points (5/5 events)

EventTime Points
200 FR SCY 1:45.34 860
100 BK SCY 56.38 652
100 BR SCY 1:16.32 394
100 FL SCY 50.93 895
200 IM SCY 1:56.35 858

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

PR splits

100 Freestyle SCY 50.13 split/total mismatch

24.35
1.43

Front half 24.35s · back half 25.78s

200 Freestyle SCY 1:45.34 split/total mismatch

24.96
26.82
26.93
26.63

1000 Freestyle SCY 9:59.66 split/total mismatch

26.59
29.30
29.54
29.77
29.84
29.73
29.99
30.14
30.15
30.08
30.55
29.90
30.26
30.24
29.81
30.25
30.87
30.96
31.24
30.45

1650 Freestyle SCY 17:03.87

28.37
30.30
30.41
30.53
30.82
31.06
30.97
31.01
31.17
31.05
31.35
30.92
31.40
31.46
30.86
31.11
31.36
30.90
31.19
31.33
30.79
31.58
31.42
31.45
31.72
30.80
31.64
31.57
31.52
30.63
31.31
31.62
30.25

100 Backstroke SCY 56.38 split/total mismatch

27.35
1.68

Front half 27.35s · back half 29.03s

200 Backstroke SCY 2:02.89

29.08
30.86
31.56
31.39

Front half 59.94s · back half 62.95s

100 Breaststroke SCY 1:16.32 split/total mismatch

35.43
5.46

Front half 35.43s · back half 40.89s

200 Breaststroke SCY 2:28.43

33.60
36.95
38.12
39.76

Front half 70.55s · back half 77.88s

100 Butterfly SCY 50.93 split/total mismatch

24.18
2.57

Front half 24.18s · back half 26.75s

200 Butterfly SCY 1:49.99

25.22
27.63
28.18
28.96

Front half 52.85s · back half 57.14s

200 Individual Medley SCY 1:56.35

25.79
32.10
34.79
23.67

Front half 57.89s · back half 58.46s

400 Individual Medley SCY 4:06.45

25.42
28.86
33.00
32.32
35.06
36.04
28.00
27.75

Front half 119.60s · back half 126.85s

100 Freestyle LCM 59.91

28.10
31.81

Front half 28.10s · back half 31.81s

200 Freestyle LCM 2:03.64

28.35
30.56
31.67
33.06

Front half 58.91s · back half 64.73s

400 Freestyle LCM 4:21.84

29.37
32.32
33.28
33.11
32.81
33.40
33.57
33.98

Front half 128.08s · back half 133.76s

800 Freestyle LCM 8:59.71

30.72
33.63
34.22
34.40
34.86
33.52
34.97
33.72
34.24
33.32
33.86
33.70
33.89
33.85
30.87
35.94

Front half 270.04s · back half 269.67s

1500 Freestyle LCM 17:45.31

31.15
34.12
34.40
35.32
35.20
35.35
30.74
40.16
36.12
35.82
31.24
39.85
35.48
35.82
35.92
35.62
35.88
35.50
36.38
36.89
36.76
35.83
36.34
36.17
36.39
35.78
36.36
35.80
35.47
33.45

Front half 526.69s · back half 538.62s

100 Backstroke LCM 1:09.96

34.84
35.12

Front half 34.84s · back half 35.12s

200 Backstroke LCM 2:31.29

36.53
37.67
39.23
37.86

Front half 74.20s · back half 77.09s

200 Breaststroke LCM 3:05.54

41.75
45.60
48.78
49.41

Front half 87.35s · back half 98.19s

100 Butterfly LCM 59.49 RT 0.81s

27.81
31.68

Front half 27.81s · back half 31.68s

200 Butterfly LCM 2:07.66

28.69
32.42
32.75
33.80

Front half 61.11s · back half 66.55s

400 Individual Medley LCM 4:46.74

28.78
32.88
38.18
37.58
42.40
43.94
32.16
30.82

Front half 137.42s · back half 149.32s

Reaction time

fastest 0.78s average 0.952s slowest 1.56s 5 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 23.49 10 swims
100 Freestyle SCY 50.13 15 swims
200 Freestyle SCY 1:45.34 36 swims
500 Freestyle SCY 4:40.53 18 swims
1000 Freestyle SCY 9:59.66 12 swims
1650 Freestyle SCY 17:03.87 4 swims
50 Backstroke SCY 28.70 2 swims
100 Backstroke SCY 56.38 22 swims
200 Backstroke SCY 2:02.89 16 swims
100 Breaststroke SCY 1:16.32 4 swims
200 Breaststroke SCY 2:28.43 3 swims
50 Butterfly SCY 23.60 18 swims
100 Butterfly SCY 50.93 45 swims
200 Butterfly SCY 1:49.99 40 swims
200 Individual Medley SCY 1:56.35 40 swims
400 Individual Medley SCY 4:06.45 17 swims
50 Freestyle LCM 27.36 3 swims
100 Freestyle LCM 59.91 4 swims
200 Freestyle LCM 2:03.64 8 swims
400 Freestyle LCM 4:21.84 9 swims
800 Freestyle LCM 8:59.71 5 swims
1500 Freestyle LCM 17:45.31 2 swims
100 Backstroke LCM 1:09.96 3 swims
200 Backstroke LCM 2:31.29 3 swims
200 Breaststroke LCM 3:05.54 1 swim
50 Butterfly LCM 27.76 4 swims
100 Butterfly LCM 59.49 12 swims
200 Butterfly LCM 2:07.66 15 swims
200 Individual Medley LCM 2:19.29 6 swims
400 Individual Medley LCM 4:46.74 8 swims