Mason Cheng

Mage 12SINCA

159 plausible swims · 37 meets · 2024-01-20 → 2026-11-08

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 29.06 BB+0.97s to A·+5.87s to Sectionals 2026-11-07 2026 SI RSD All Ages NTS Meetfast pool
100 Freestyle SCY 1:05.96 BB+4.67s to A·+14.97s to Sectionals 2026-09-20 2026 SI PS Freestyle Festival Sunvenue
200 Freestyle SCY 2:36.80 +0.81s to B·+45.01s to Sectionals 2026-07-12 2026 SI JBST All Ages Last Chance Meetvenue
500 Freestyle SCY 6:52.52 B+22.53s to BB·+109.83s to Sectionals 2026-11-07 2026 SI RSD All Ages NTS Meetfast pool
50 Backstroke SCY 35.75 B+0.16s to BB·+12.06s to Futures 2026-10-03 2026 SI CAST Pentathlon October 3venue
100 Backstroke SCY 1:22.00 B+6.31s to BB·+26.51s to Sectionals 2026-11-07 2026 SI RSD All Ages NTS Meetfast pool
50 Breaststroke SCY 39.95 BB+3.26s to A·+13.66s to Futures 2026-11-08 2026 SI RSD All Ages NTS Meetfast pool
100 Breaststroke SCY 1:38.95 +6.36s to B·+35.76s to Sectionals 2026-02-21 2026 SI MRA Age Group Champs Max Meetvenue
50 Butterfly SCY 30.91 A+1.22s to AA·+8.02s to Futures 2026-10-03 2026 SI CAST Pentathlon October 3venue
100 Butterfly SCY 1:16.41 B+0.32s to BB·+21.22s to Sectionals 2026-11-08 2026 SI RSD All Ages NTS Meetfast pool
100 Individual Medley SCY 1:13.29 BB+3.30s to A 2026-11-07 2026 SI RSD All Ages NTS Meetfast pool
200 Individual Medley SCY 2:55.95 B+10.16s to BB·+51.96s to Sectionals 2026-07-11 2026 SI JBST All Ages Last Chance Meetvenue
50 Freestyle LCM 34.59 BB+2.50s to A·+7.60s to Sectionals 2026-07-23 2026 SI LC AGE GROUP CHAMPIONSHIPSvenue
100 Freestyle LCM 1:21.31 B+5.12s to BB·+22.32s to Sectionals 2026-06-19 2026 SI Splash and Dashfast pool
200 Freestyle LCM 3:01.68 +2.49s to B·+52.99s to Sectionals 2026-06-27 2026 SI MRA LC Distance Meetvenue
50 Backstroke LCM 42.68 B+1.49s to BB·+14.79s to Futures 2026-05-23 SI 2026 TAC CSTE All Ages NTS Meetslow pool
100 Backstroke LCM 1:36.24 B+6.65s to BB·+31.05s to Sectionals 2026-05-23 SI 2026 TAC CSTE All Ages NTS Meetslow pool
50 Breaststroke LCM 48.99 B+3.10s to BB·+18.10s to Futures 2026-06-19 2026 SI Splash and Dashfast pool
200 Breaststroke LCM 3:52.09 +4.20s to B·+71.21s to Sectionals 2026-06-27 2026 SI MRA LC Distance Meetvenue
50 Butterfly LCM 36.63 BB+1.34s to A·+10.34s to Futures 2026-05-23 SI 2026 TAC CSTE All Ages NTS Meetslow pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

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 LCM 40.11 flying 200 Free Relay (leg 3) 2025-07-25 2025 SI LC AG 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 11-12 · SCY

2032 points (5/5 events)

EventTime Points
500 FR SCY 6:52.52 445
100 BK SCY 1:22.00 381
100 BR SCY 1:38.95 321
100 FL SCY 1:16.41 462
200 IM SCY 2:55.95 423

IMR 11-12 · SCY

2616 points (5/5 events)

EventTime Points
200 FR SCY 2:36.80 415
50 BK SCY 35.75 490
50 BR SCY 39.95 489
50 FL SCY 30.91 643
100 IM SCY 1:13.29 579

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

PR splits

100 Freestyle SCY 1:05.96

30.70
35.26

Front half 30.70s · back half 35.26s

200 Freestyle SCY 2:36.80

33.52
39.79
41.99
41.50

Front half 73.31s · back half 83.49s

500 Freestyle SCY 6:52.52 · 7.0 min after 100 Backstroke

37.24
41.59
43.08
42.48
44.27
42.93
42.14
42.71
41.32
34.76

Front half 208.66s · back half 203.86s

100 Backstroke SCY 1:22.00 · 15.5 min after 50 Freestyle

38.87
43.13

Front half 38.87s · back half 43.13s

100 Breaststroke SCY 1:38.95

45.77
53.18

Front half 45.77s · back half 53.18s

100 Butterfly SCY 1:16.41

33.40
43.01

Front half 33.40s · back half 43.01s

100 Individual Medley SCY 1:13.29

32.73
40.56

Front half 32.73s · back half 40.56s

200 Individual Medley SCY 2:55.95

35.77
45.80
54.97
39.41

Front half 81.57s · back half 94.38s

100 Freestyle LCM 1:21.31

38.78
42.53

Front half 38.78s · back half 42.53s

200 Freestyle LCM 3:01.68

87.75
93.93

Front half 87.75s · back half 93.93s

100 Backstroke LCM 1:36.24 · 14.0 min after 50 Freestyle

45.94
50.30

Front half 45.94s · back half 50.30s

200 Breaststroke LCM 3:52.09 · 17.2 min after 200 Freestyle

110.00
122.09

Front half 110.00s · back half 122.09s

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 29.06 20 swims
100 Freestyle SCY 1:05.96 16 swims
200 Freestyle SCY 2:36.80 8 swims
500 Freestyle SCY 6:52.52 1 swim
50 Backstroke SCY 35.75 17 swims
100 Backstroke SCY 1:22.00 6 swims
50 Breaststroke SCY 39.95 14 swims
100 Breaststroke SCY 1:38.95 5 swims
50 Butterfly SCY 30.91 14 swims
100 Butterfly SCY 1:16.41 2 swims
100 Individual Medley SCY 1:13.29 13 swims
200 Individual Medley SCY 2:55.95 5 swims
50 Freestyle LCM 34.59 4 swims
100 Freestyle LCM 1:21.31 4 swims
200 Freestyle LCM 3:01.68 1 swim
50 Backstroke LCM 42.68 6 swims
100 Backstroke LCM 1:36.24 4 swims
50 Breaststroke LCM 48.99 6 swims
200 Breaststroke LCM 3:52.09 1 swim
50 Butterfly LCM 36.63 5 swims