Josiah Cheung

Mage 13MTORPNBAAC

204 plausible swims · 35 meets · 2024-10-19 → 2026-10-25

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 31.04 B+2.15s to BB·+7.85s to Sectionals 2026-01-18 2026 THSC 14&U Winter Showcasevenue
100 Freestyle SCY 1:04.23 B+1.54s to BB·+13.24s to Sectionals 2026-10-25 2026 THSC Fall Invitationalvenue
200 Freestyle SCY 2:23.28 B+6.09s to BB·+31.49s to Sectionals 2026-03-07 2026 OSI Arena SC 11-14 Champsfast pool
500 Freestyle SCY 6:18.49 B+8.30s to BB·+75.80s to Sectionals 2026-01-02 2026 CST Shark Chase Invitationalvenue
50 Backstroke SCY 34.84 B+1.95s to BB·+11.15s to Futures 2026-10-24 2026 THSC Fall Invitationalvenue
100 Backstroke SCY 1:23.31 +8.92s to B·+27.82s to Sectionals 2025-11-08 2025 McSwimville Invitationalslow pool
200 Backstroke SCY 2:42.60 +0.51s to B·+41.31s to Sectionals 2026-10-11 2026 OR HEAT Fall Invitationalvenue
50 Breaststroke SCY 36.83 BB+2.14s to A·+10.54s to Futures 2026-10-25 2026 THSC Fall Invitationalvenue
100 Breaststroke SCY 1:17.13 BB+4.84s to A·+13.94s to Sectionals 2026-10-24 2026 THSC Fall Invitationalvenue
200 Breaststroke SCY 2:44.26 BB+7.47s to A·+26.97s to Sectionals 2026-10-10 2026 OR HEAT Fall Invitationalvenue
50 Butterfly SCY 32.81 B+0.62s to BB·+9.92s to Futures 2026-10-25 2026 THSC Fall Invitationalvenue
100 Butterfly SCY 1:10.76 B+2.27s to BB·+15.57s to Sectionals 2026-10-10 2026 OR HEAT Fall Invitationalvenue
200 Butterfly SCY 2:59.28 +13.99s to B·+55.89s to Sectionals 2026-03-19 2026 Northwest Region Age Group Championships
100 Individual Medley SCY 1:15.23 2026-03-22 2026 NW Region Age Group Champs- Approvedvenue
200 Individual Medley SCY 2:33.77 B+0.88s to BB·+29.78s to Sectionals 2026-10-09 2026 OR HEAT Fall Invitationalvenue
400 Individual Medley SCY 5:17.04 BB+14.65s to A·+52.35s to Sectionals 2026-10-10 2026 OR HEAT Fall Invitationalvenue
200 Freestyle SCM 2:51.69 +8.40s to B·+48.20s to Sectionals 2025-08-03 GACC 2025 End of Season Meetvenue
200 Breaststroke SCM 3:23.83 +1.64s to B·+52.14s to Sectionals 2025-08-03 GACC 2025 End of Season Meetvenue
100 Individual Medley SCM 1:28.45 2025-08-03 GACC 2025 End of Season Meetvenue
50 Freestyle LCM 34.33 B+1.24s to BB·+7.34s to Sectionals 2026-06-27 2026 TEAM Summer Invitationalvenue
100 Freestyle LCM 1:12.31 BB+5.22s to A·+13.32s to Sectionals 2026-06-26 2026 TEAM Summer Invitationalvenue
200 Freestyle LCM 3:01.72 +11.73s to B·+53.03s to Sectionals 2025-06-01 LA OPEN 2025venue
400 Freestyle LCM 5:25.41 BB+16.92s to A·+51.02s to Sectionals 2026-07-24 2026 OSI Arena 13&O LC Championships Update -venue
50 Backstroke LCM 42.88 +1.69s to B·+14.99s to Futures 2026-06-26 2026 TEAM Summer Invitationalvenue
100 Backstroke LCM 1:28.52 +1.13s to B·+23.33s to Sectionals 2026-05-23 2026 THSC Memorial Weekend Meetvenue
50 Breaststroke LCM 43.65 B+1.06s to BB·+12.76s to Futures 2026-06-14 2026 THSC June Openvenue
100 Breaststroke LCM 1:34.15 B+3.86s to BB·+20.45s to Sectionals 2026-06-13 2026 THSC June Openvenue
200 Breaststroke LCM 3:12.73 BB+9.84s to A·+31.85s to Sectionals 2026-06-27 2026 TEAM Summer Invitationalvenue
50 Butterfly LCM 37.81 B+1.52s to BB·+11.52s to Futures 2026-06-28 2026 TEAM Summer Invitationalvenue
100 Butterfly LCM 1:26.70 +2.61s to B·+23.61s to Sectionals 2026-04-19 2026 MAC LONG-COURSE INVITATIONALvenue
200 Individual Medley LCM 2:54.08 BB+10.89s to A·+29.39s to Sectionals 2026-07-24 2026 OSI Arena 13&O LC Championships Update -venue

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

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 32.72 flying 200 Free Relay (leg 4) 2024-12-14 2024 OR HEAT Age Group Jubilee
50 Breaststroke SCY 38.99 flying 200 Medley Relay (leg 2) 2026-03-08 2026 OSI Arena SC 11-14 Champs
100 Breaststroke SCY 1:25.24 flying 400 Medley Relay (leg 2) 2026-03-06 2026 OSI Arena SC 11-14 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.

IMX / IMR

IMX 13-14 · SCY

2565 points (6/6 events)

EventTime Points
500 FR SCY 6:18.49 446
200 BK SCY 2:42.60 362
200 BR SCY 2:44.26 509
200 FL SCY 2:59.28 282
200 IM SCY 2:33.77 457
400 IM SCY 5:17.04 509

IMR 13-14 · SCY

2032 points (5/5 events)

EventTime Points
200 FR SCY 2:23.28 415
100 BK SCY 1:23.31 264
100 BR SCY 1:17.13 479
100 FL SCY 1:10.76 417
200 IM SCY 2:33.77 457

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

PR splits

100 Freestyle SCY 1:04.23

30.45
33.78

Front half 30.45s · back half 33.78s

200 Freestyle SCY 2:23.28

33.94
37.34
36.88
35.12

Front half 71.28s · back half 72.00s

500 Freestyle SCY 6:18.49

35.74
38.33
39.15
38.31
38.15
39.60
38.40
39.01
37.31
34.49

Front half 189.68s · back half 188.81s

100 Backstroke SCY 1:23.31

42.06
41.25

Front half 42.06s · back half 41.25s

200 Backstroke SCY 2:42.60

39.63
41.56
41.33
40.08

Front half 81.19s · back half 81.41s

100 Breaststroke SCY 1:17.13

36.74
40.39

Front half 36.74s · back half 40.39s

200 Breaststroke SCY 2:44.26

37.49
42.55
42.02
42.20

Front half 80.04s · back half 84.22s

100 Butterfly SCY 1:10.76

34.00
36.76

Front half 34.00s · back half 36.76s

200 Butterfly SCY 2:59.28

31.38
67.73
104.97
143.22
41.23
86.10
132.63
179.28

100 Individual Medley SCY 1:15.23 RT 0.62s

35.32
39.91

Front half 35.32s · back half 39.91s

200 Individual Medley SCY 2:33.77

34.50
40.60
43.72
34.95

Front half 75.10s · back half 78.67s

400 Individual Medley SCY 5:17.04

35.31
38.91
40.54
42.88
43.04
43.86
36.63
35.87

Front half 157.64s · back half 159.40s

200 Freestyle SCM 2:51.69

39.44
43.90
44.79
43.56

Front half 83.34s · back half 88.35s

200 Breaststroke SCM 3:23.83

47.50
52.16
53.41
50.76

Front half 99.66s · back half 104.17s

100 Individual Medley SCM 1:28.45

42.80
45.65

Front half 42.80s · back half 45.65s

200 Freestyle LCM 3:01.72

40.98
46.87
46.44
47.43

Front half 87.85s · back half 93.87s

400 Freestyle LCM 5:25.41

36.04
40.85
40.99
42.21
41.21
42.82
40.94
40.35

Front half 160.09s · back half 165.32s

100 Backstroke LCM 1:28.52

43.54
44.98

Front half 43.54s · back half 44.98s

100 Breaststroke LCM 1:34.15

45.85
48.30

Front half 45.85s · back half 48.30s

200 Breaststroke LCM 3:12.73

45.87
49.29
49.32
48.25

Front half 95.16s · back half 97.57s

200 Individual Medley LCM 2:54.08

39.15
46.71
48.94
39.28

Front half 85.86s · back half 88.22s

Reaction time

fastest 0.62s average 0.663s slowest 0.73s 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 31.04 8 swims
100 Freestyle SCY 1:04.23 12 swims
200 Freestyle SCY 2:23.28 6 swims
500 Freestyle SCY 6:18.49 3 swims
50 Backstroke SCY 34.84 7 swims
100 Backstroke SCY 1:23.31 2 swims
200 Backstroke SCY 2:42.60 1 swim
50 Breaststroke SCY 36.83 14 swims
100 Breaststroke SCY 1:17.13 18 swims
200 Breaststroke SCY 2:44.26 8 swims
50 Butterfly SCY 32.81 12 swims
100 Butterfly SCY 1:10.76 13 swims
200 Butterfly SCY 2:59.28 1 swim
100 Individual Medley SCY 1:15.23 8 swims
200 Individual Medley SCY 2:33.77 11 swims
400 Individual Medley SCY 5:17.04 1 swim
200 Freestyle SCM 2:51.69 1 swim
200 Breaststroke SCM 3:23.83 1 swim
100 Individual Medley SCM 1:28.45 1 swim
50 Freestyle LCM 34.33 4 swims
100 Freestyle LCM 1:12.31 6 swims
200 Freestyle LCM 3:01.72 2 swims
400 Freestyle LCM 5:25.41 5 swims
50 Backstroke LCM 42.88 5 swims
100 Backstroke LCM 1:28.52 4 swims
50 Breaststroke LCM 43.65 7 swims
100 Breaststroke LCM 1:34.15 11 swims
200 Breaststroke LCM 3:12.73 5 swims
50 Butterfly LCM 37.81 9 swims
100 Butterfly LCM 1:26.70 4 swims
200 Individual Medley LCM 2:54.08 9 swims