swimstats

Bo Zheng

Mage 20CASIUTANDCFASTTSTUN-08

31 plausible swims · 7 meets · 2024-02-29 → 2026-06-05

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 22.24 2025-02-15 2025 SI Presidents' Day Senior Classic venue
100 Freestyle SCY 48.28 2025-02-17 2025 SI Presidents' Day Senior Classic venue
200 Freestyle SCY 1:43.10 2025-02-16 2025 SI Presidents' Day Senior Classic venue
500 Freestyle SCY 4:37.77 2025-02-15 2025 SI Presidents' Day Senior Classic venue
1000 Freestyle SCY 9:38.97 2025-02-14 2025 SI Presidents' Day Senior Classic venue
1650 Freestyle SCY 16:02.97 2025-02-17 2025 SI Presidents' Day Senior Classic venue
400 Individual Medley SCY 4:24.55 2025-02-16 2025 SI Presidents' Day Senior Classic venue
50 Freestyle LCM 27.58 2026-06-05 2026 FAST 4th Annual Jon Urbanchek Invitation venue
200 Freestyle LCM 1:56.57 2024-07-26 2024 CA SCS/GWSC Summer A/G Champs slow pool
400 Freestyle LCM 4:09.98 2024-07-27 2024 CA SCS/GWSC Summer A/G Champs slow pool
800 Freestyle LCM 8:40.53 2024-07-28 2024 CA SCS/GWSC Summer A/G Champs slow pool
1500 Freestyle LCM 16:42.49 2024-07-25 2024 CA SCS/GWSC Summer A/G Champs slow pool
50 Butterfly LCM 28.21 2025-04-26 2025 Lakewood Aquatics April LC Closed Invite slow pool
100 Butterfly LCM 1:00.10 2025-05-24 2025 CA 29th NOVA-Speedo Grand Challenge venue
200 Butterfly LCM 2:22.63 2025-04-26 2025 Lakewood Aquatics April LC Closed Invite slow pool
400 Individual Medley LCM 5:13.80 2025-04-26 2025 Lakewood Aquatics April LC Closed Invite slow pool

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 LCM 25.14 flying 200 Medley Relay (leg 4) 2024-07-25 2024 CA SCS/GWSC Summer A/G Champs
50 Freestyle LCM 25.36 flying 200 Free Relay (leg 3) 2024-07-25 2024 CA SCS/GWSC Summer A/G Champs
100 Freestyle LCM 55.41 flat 400 Free Relay 2024-07-28 2024 CA SCS/GWSC Summer A/G Champs
200 Freestyle LCM 2:01.49 flying 800 Free Relay (leg 2) 2024-07-26 2024 CA SCS/GWSC Summer A/G Champs
100 Butterfly LCM 1:00.29 flying 400 Medley Relay (leg 3) 2024-07-27 2024 CA SCS/GWSC Summer A/G Champs

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

100 Freestyle SCY 48.28

23.53
24.75

Front half 23.53s · back half 24.75s

200 Freestyle SCY 1:43.10

24.47
26.20
26.37
26.06

Front half 50.67s · back half 52.43s

500 Freestyle SCY 4:37.77

25.33
27.69
28.05
28.51
28.43
28.23
28.48
28.23
28.29
26.53

Front half 138.01s · back half 139.76s

1000 Freestyle SCY 9:38.97

25.82
28.11
28.51
28.63
28.68
28.77
29.22
29.33
29.47
29.38
29.58
29.45
29.25
29.65
29.68
29.33
29.63
29.36
29.44
27.68

Front half 285.92s · back half 293.05s

1650 Freestyle SCY 16:02.97

26.21
28.35
28.54
28.79
28.73
28.68
28.75
28.80
29.21
29.27
29.22
28.88
29.27
29.42
29.31
29.42
29.29
29.28
29.51
29.44
29.40
29.59
29.36
29.58
29.93
29.78
29.56
30.05
29.69
29.80
29.41
29.89
28.56

400 Individual Medley SCY 4:24.55

25.75
29.43
36.13
35.88
41.28
39.94
27.42
28.72

Front half 127.19s · back half 137.36s

200 Freestyle LCM 1:56.57

27.61
29.87
29.91
29.18

Front half 57.48s · back half 59.09s

400 Freestyle LCM 4:09.98

28.80
31.11
31.86
32.35
31.69
31.43
31.77
30.97

Front half 124.12s · back half 125.86s

800 Freestyle LCM 8:40.53

28.90
31.22
31.94
32.67
32.54
33.35
33.10
33.58
33.54
33.55
33.18
33.54
32.95
33.08
31.88
31.51

Front half 257.30s · back half 263.23s

1500 Freestyle LCM 16:42.49

29.62
31.83
32.50
32.90
32.69
32.90
33.04
33.09
33.11
32.97
33.38
33.41
33.86
33.38
33.77
33.50
33.68
33.62
33.85
33.62
33.80
34.29
33.87
33.85
34.27
34.09
34.40
34.65
34.84
33.71

Front half 492.45s · back half 510.04s

100 Butterfly LCM 1:00.10

28.20
31.90

Front half 28.20s · back half 31.90s

200 Butterfly LCM 2:22.63

68.65
73.98

Front half 68.65s · back half 73.98s

400 Individual Medley LCM 5:13.80

69.20
85.56
95.09
63.95

Front half 154.76s · back half 159.04s

Reaction time

fastest 0.70s average 0.738s slowest 0.80s 4 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 22.24 2 swims
100 Freestyle SCY 48.28 1 swim
200 Freestyle SCY 1:43.10 4 swims
500 Freestyle SCY 4:37.77 4 swims
1000 Freestyle SCY 9:38.97 1 swim
1650 Freestyle SCY 16:02.97 1 swim
400 Individual Medley SCY 4:24.55 1 swim
50 Freestyle LCM 27.58 1 swim
200 Freestyle LCM 1:56.57 3 swims
400 Freestyle LCM 4:09.98 5 swims
800 Freestyle LCM 8:40.53 2 swims
1500 Freestyle LCM 16:42.49 2 swims
50 Butterfly LCM 28.21 1 swim
100 Butterfly LCM 1:00.10 1 swim
200 Butterfly LCM 2:22.63 1 swim
400 Individual Medley LCM 5:13.80 1 swim