swimstats

Marcus Zhang

Mage 13COFLBSS

147 plausible swims · 23 meets · 2024-01-27 → 2026-06-06

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 25.02 AA+0.63s to AAA 2025-12-04 RAFC Winter Classic
100 Freestyle SCY 55.34 AA+2.25s to AAA 2025-12-04 RAFC Winter Classic
200 Freestyle SCY 2:01.65 A+0.26s to AA 2025-12-06 RAFC Winter Classic venue
500 Freestyle SCY 5:45.11 BB+3.42s to A 2025-10-12 2025 October Classic venue
1650 Freestyle SCY 20:22.27 BB+32.98s to A 2025-10-10 2025 October Classic venue
50 Backstroke SCY 30.81 BB+0.42s to A 2025-11-15 EAJ Fall Harvest 2025 venue
100 Backstroke SCY 1:04.78 BB+0.99s to A 2025-12-06 RAFC Winter Classic venue
200 Backstroke SCY 2:27.60 BB+8.61s to A 2026-02-22 2026 Area 1 Spring Championships fast pool
50 Breaststroke SCY 34.95 BB+0.26s to A 2025-12-04 RAFC Winter Classic
100 Breaststroke SCY 1:16.86 BB+4.57s to A 2025-03-09 2025 Florida Swimming FLAGS NORTH venue
200 Breaststroke SCY 2:15.96 AAAA 2025-10-10 2025 October Classic
50 Butterfly SCY 26.89 AAA+0.90s to AAAA 2025-12-04 RAFC Winter Classic
100 Butterfly SCY 1:00.30 AA+2.31s to AAA 2025-12-05 RAFC Winter Classic venue
200 Butterfly SCY 2:47.98 +2.69s to B 2026-02-22 2026 Area 1 Spring Championships fast pool
100 Individual Medley SCY 1:11.90 2024-03-01 2024 Florida Swimming FLAGS NORTH venue
200 Individual Medley SCY 2:06.03 AAA+2.54s to AAAA 2025-10-10 2025 October Classic
400 Individual Medley SCY 5:00.33 A+10.54s to AA 2026-01-30 2026 BSS February Classic - copied venue
50 Freestyle LCM 28.51 AA+0.52s to AAA 2026-06-06 2026 June Sprint venue
100 Freestyle LCM 1:03.23 AA+1.74s to AAA 2025-06-22 2025 Planet Swim Summer Championships venue
200 Freestyle LCM 2:20.10 A+0.41s to AA 2026-06-06 2026 June Sprint venue
400 Freestyle LCM 5:18.98 BB+10.49s to A 2025-04-12 2025 April Classic venue
50 Backstroke LCM 34.45 A+0.56s to AA 2026-06-05 2026 June Sprint venue
100 Backstroke LCM 1:15.22 BB+0.33s to A 2026-06-06 2026 June Sprint venue
50 Breaststroke LCM 40.12 BB+0.73s to A 2026-04-10 2026 April Classic venue
100 Breaststroke LCM 1:15.65 AAA+2.76s to AAAA 2026-04-10 2026 April Classic
200 Breaststroke LCM 3:13.31 BB+10.42s to A 2025-07-26 2025 Area 1 LCM Championships venue
50 Butterfly LCM 30.86 AA+0.17s to AAA 2026-04-10 2026 April Classic venue
100 Butterfly LCM 59.09 AAAA 2026-04-10 2026 April Classic
200 Individual Medley LCM 2:43.00 A+6.61s to AA 2025-06-22 2025 Planet Swim Summer Championships venue
400 Individual Medley LCM 5:54.90 BB+6.31s to A 2026-04-11 2026 April Classic venue

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

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 25.47 flying 200 Medley Relay (leg 4) 2024-02-29 2024 Florida Swimming FLAGS NORTH

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

3745 points (6/6 events)

EventTime Points
500 FR SCY 5:45.11 589
200 BK SCY 2:27.60 485
200 BR SCY 2:15.96 898
200 FL SCY 2:47.98 343
200 IM SCY 2:06.03 831
400 IM SCY 5:00.33 599

IMR 13-14 · LCM

3717 points (5/5 events)

EventTime Points
200 FR LCM 2:20.10 676
100 BK LCM 1:15.22 581
100 BR LCM 1:15.65 802
100 FL LCM 59.09 1062
200 IM LCM 2:43.00 596

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

PR splits

200 Freestyle SCY 2:01.65

27.27
30.93
31.90
31.55

Front half 58.20s · back half 63.45s

500 Freestyle SCY 5:45.11

30.77
34.92
35.84
35.78
35.70
36.00
35.56
34.41
33.57
32.56

Front half 173.01s · back half 172.10s

1650 Freestyle SCY 20:22.27

31.83
36.69
38.31
38.14
36.97
36.79
37.45
37.27
38.22
37.41
37.23
36.36
37.52
38.09
38.04
37.21
37.59
37.66
37.23
37.26
35.60
37.38
38.11
36.93
37.08
38.41
38.12
36.98
37.98
35.53
37.36
37.59
31.93

100 Backstroke SCY 1:04.78 RT 0.79s

31.01
33.77

Front half 31.01s · back half 33.77s

200 Backstroke SCY 2:27.60

35.33
38.51
38.36
35.40

Front half 73.84s · back half 73.76s

100 Breaststroke SCY 1:16.86 RT 0.67s

36.64
40.22

Front half 36.64s · back half 40.22s

200 Breaststroke SCY 2:15.96 split/total mismatch

38.21
44.35
45.05
41.96
29.40
34.18
35.82
36.56

100 Butterfly SCY 1:00.30

28.54
31.76

Front half 28.54s · back half 31.76s

200 Butterfly SCY 2:47.98

37.69
44.23
46.22
39.84

Front half 81.92s · back half 86.06s

100 Individual Medley SCY 1:11.90 RT 0.72s

33.25
38.65

Front half 33.25s · back half 38.65s

200 Individual Medley SCY 2:06.03 split/total mismatch

30.13
37.85
44.24
32.55
27.91
32.20
36.91
29.01

400 Individual Medley SCY 5:00.33

33.63
36.56
38.91
38.41
44.26
44.21
33.76
30.59

Front half 147.51s · back half 152.82s

100 Freestyle LCM 1:03.23

30.60
32.63

Front half 30.60s · back half 32.63s

200 Freestyle LCM 2:20.10

33.35
35.12
36.30
35.33

Front half 68.47s · back half 71.63s

400 Freestyle LCM 5:18.98

35.04
39.36
41.23
41.05
40.10
40.91
41.28
40.01

Front half 156.68s · back half 162.30s

100 Backstroke LCM 1:15.22

37.15
38.07

Front half 37.15s · back half 38.07s

100 Breaststroke LCM 1:15.65 split/total mismatch

44.21
47.94
35.26
40.39

200 Breaststroke LCM 3:13.31

45.60
50.25
49.34
48.12

Front half 95.85s · back half 97.46s

100 Butterfly LCM 59.09 split/total mismatch

33.34
37.22
28.40
30.69

200 Individual Medley LCM 2:43.00

34.37
43.59
49.90
35.14

Front half 77.96s · back half 85.04s

400 Individual Medley LCM 5:54.90

38.60
43.84
45.30
44.94
53.65
52.80
38.48
37.29

Front half 172.68s · back half 182.22s

Reaction time

fastest 0.58s average 0.685s slowest 0.79s 24 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.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 25.02 11 swims
100 Freestyle SCY 55.34 7 swims
200 Freestyle SCY 2:01.65 3 swims
500 Freestyle SCY 5:45.11 2 swims
1650 Freestyle SCY 20:22.27 1 swim
50 Backstroke SCY 30.81 3 swims
100 Backstroke SCY 1:04.78 6 swims
200 Backstroke SCY 2:27.60 1 swim
50 Breaststroke SCY 34.95 5 swims
100 Breaststroke SCY 1:16.86 4 swims
200 Breaststroke SCY 2:15.96 3 swims
50 Butterfly SCY 26.89 10 swims
100 Butterfly SCY 1:00.30 6 swims
200 Butterfly SCY 2:47.98 1 swim
100 Individual Medley SCY 1:11.90 3 swims
200 Individual Medley SCY 2:06.03 8 swims
400 Individual Medley SCY 5:00.33 2 swims
50 Freestyle LCM 28.51 11 swims
100 Freestyle LCM 1:03.23 6 swims
200 Freestyle LCM 2:20.10 3 swims
400 Freestyle LCM 5:18.98 2 swims
50 Backstroke LCM 34.45 3 swims
100 Backstroke LCM 1:15.22 10 swims
50 Breaststroke LCM 40.12 3 swims
100 Breaststroke LCM 1:15.65 10 swims
200 Breaststroke LCM 3:13.31 4 swims
50 Butterfly LCM 30.86 6 swims
100 Butterfly LCM 59.09 7 swims
200 Individual Medley LCM 2:43.00 5 swims
400 Individual Medley LCM 5:54.90 1 swim