Mason Chi

Mage 12CABLKROSESPARUNUN-01

138 plausible swims · 29 meets · 2024-07-26 → 2026-07-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 28.04 A+1.05s to AA·+4.85s to Sectionals 2026-06-26 2026 CA SPAR Surprise Summer Intersquad - copvenue
100 Freestyle SCY 1:07.27 B+0.88s to BB·+16.28s to Sectionals 2025-09-21 2025 TSM Aquatics Season Openervenue
200 Freestyle SCY 2:29.84 B+4.95s to BB·+38.05s to Sectionals 2025-11-22 2025 CANY Cranberryvenue
50 Backstroke SCY 31.07 AA+1.38s to AAA·+7.38s to Futures 2026-02-28 2026 Pacific Committee SC Chmpionshipvenue
100 Backstroke SCY 1:06.57 A+0.58s to AA·+11.08s to Sectionals 2025-12-12 2025 CA SCS/SCAT WAGvenue
200 Backstroke SCY 2:27.65 A+5.66s to AA·+26.36s to Sectionals 2026-01-16 2026 Rose Winter Intrasquadvenue
50 Breaststroke SCY 35.39 A+0.40s to AA·+9.10s to Futures 2026-06-26 2026 CA SPAR Surprise Summer Intersquad - copvenue
100 Breaststroke SCY 1:22.53 BB+4.14s to A·+19.34s to Sectionals 2026-02-27 2026 Pacific Committee SC Chmpionshipvenue
200 Breaststroke SCY 2:50.59 BB+2.20s to A·+33.30s to Sectionals 2026-06-26 2026 CA SPAR Surprise Summer Intersquad - copvenue
50 Butterfly SCY 33.94 BB+2.75s to A·+11.05s to Futures 2026-01-17 2026 Rose Winter Intrasquadvenue
100 Butterfly SCY 1:17.82 B+1.73s to BB·+22.63s to Sectionals 2025-02-21 2025 Pacific Committee SC Championshipvenue
100 Individual Medley SCY 1:11.79 BB+1.80s to A 2026-02-28 2026 Pacific Committee SC Chmpionshipvenue
200 Individual Medley SCY 2:40.29 BB+8.00s to A·+36.30s to Sectionals 2025-11-23 2025 CANY Cranberryvenue
50 Freestyle LCM 32.32 BB+0.23s to A·+5.33s to Sectionals 2026-06-07 2026 BCA June LC Meetvenue
100 Freestyle LCM 1:12.95 BB+2.56s to A·+13.96s to Sectionals 2026-06-06 2026 BCA June LC Meetvenue
200 Freestyle LCM 2:42.40 BB+8.81s to A·+33.71s to Sectionals 2026-06-07 2026 BCA June LC Meetvenue
400 Freestyle LCM 5:55.53 B+1.54s to BB·+81.14s to Sectionals 2026-04-23 Rose Spring LCM Intrasquadvenue
50 Backstroke LCM 34.66 AA+0.27s to AAA·+6.77s to Futures 2026-07-26 2026 CA SCS Summer A/G Champs @ BREAfast pool
100 Backstroke LCM 1:14.70 AA+0.41s to AAA·+9.51s to Sectionals 2026-07-23 2026 CA SCS Summer A/G Champs @ BREAfast pool
200 Backstroke LCM 2:45.75 AA+6.26s to AAA·+24.26s to Sectionals 2026-06-06 2026 BCA June LC Meetvenue
50 Breaststroke LCM 39.10 AA+1.01s to AAA·+8.21s to Futures 2026-07-24 2026 CA SCS Summer A/G Champs @ BREAfast pool
100 Breaststroke LCM 1:27.98 A+0.79s to AA·+14.28s to Sectionals 2026-07-10 2026 Summer Pacific Champs @BLAST - copied -venue
50 Butterfly LCM 36.81 BB+1.52s to A·+10.52s to Futures 2026-05-02 2026 TORR May Spring Splashvenue
100 Butterfly LCM 1:32.68 B+5.39s to BB·+29.59s to Sectionals 2025-05-04 2025 CA TORR Spring Splashvenue
200 Individual Medley LCM 2:58.00 BB+3.81s to A·+33.31s to Sectionals 2026-04-24 Rose Spring LCM Intrasquadvenue

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 SCY 28.17 flying 200 Free Relay (leg 2) 2026-02-28 2026 Pacific Committee SC Chmpionship
100 Freestyle SCY 1:03.85 flying 400 Free Relay (leg 3) 2026-03-13 2026 SCS Spring Age Group Champs @ RMDA - cop
50 Backstroke SCY 31.44 flat 200 Medley Relay 2026-02-28 2026 Pacific Committee SC Chmpionship
100 Backstroke SCY 1:07.54 flat 400 Medley Relay 2026-02-27 2026 Pacific Committee SC Chmpionship
50 Freestyle LCM 30.26 flying 200 Free Relay (leg 2) 2026-07-24 2026 CA SCS Summer A/G Champs @ BREA
100 Freestyle LCM 1:09.95 flying 400 Free Relay (leg 3) 2026-07-26 2026 CA SCS Summer A/G Champs @ BREA
50 Backstroke LCM 35.45 flat 200 Medley Relay 2026-07-24 2026 CA SCS Summer A/G Champs @ BREA
100 Backstroke LCM 1:15.78 flat 400 Medley Relay 2026-07-25 2026 CA SCS Summer A/G Champs @ BREA

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 · LCM

3074 points (5/5 events)

EventTime Points
400 FR LCM 5:55.53 519
100 BK LCM 1:14.70 836
100 BR LCM 1:27.98 723
100 FL LCM 1:32.68 391
200 IM LCM 2:58.00 605

IMR 11-12 · LCM

3345 points (5/5 events)

EventTime Points
200 FR LCM 2:42.40 566
50 BK LCM 34.66 831
50 BR LCM 39.10 786
50 FL LCM 36.81 557
200 IM LCM 2:58.00 605

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

PR splits

100 Freestyle SCY 1:07.27

32.86
34.41

Front half 32.86s · back half 34.41s

200 Freestyle SCY 2:29.84

32.19
38.89
40.28
38.48

Front half 71.08s · back half 78.76s

100 Backstroke SCY 1:06.57

31.88
34.69

Front half 31.88s · back half 34.69s

200 Backstroke SCY 2:27.65

34.62
37.37
38.57
37.09

Front half 71.99s · back half 75.66s

100 Breaststroke SCY 1:22.53

39.36
43.17

Front half 39.36s · back half 43.17s

200 Breaststroke SCY 2:50.59

38.82
45.05
43.36
43.36

Front half 83.87s · back half 86.72s

100 Butterfly SCY 1:17.82

35.98
41.84

Front half 35.98s · back half 41.84s

100 Individual Medley SCY 1:11.79

32.44
39.35

Front half 32.44s · back half 39.35s

200 Individual Medley SCY 2:40.29

34.96
36.56
49.86
38.91

Front half 71.52s · back half 88.77s

200 Freestyle LCM 2:42.40

78.76
83.64

Front half 78.76s · back half 83.64s

400 Freestyle LCM 5:55.53

82.98
90.93
92.44
89.18

Front half 173.91s · back half 181.62s

100 Backstroke LCM 1:14.70 RT 0.78s

37.07
37.63

Front half 37.07s · back half 37.63s

200 Backstroke LCM 2:45.75

80.23
85.52

Front half 80.23s · back half 85.52s

200 Individual Medley LCM 2:58.00

84.36
93.64

Front half 84.36s · back half 93.64s

Reaction time

fastest 0.47s average 0.594s slowest 0.80s 9 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 28.04 12 swims
100 Freestyle SCY 1:07.27 6 swims
200 Freestyle SCY 2:29.84 7 swims
50 Backstroke SCY 31.07 11 swims
100 Backstroke SCY 1:06.57 14 swims
200 Backstroke SCY 2:27.65 2 swims
50 Breaststroke SCY 35.39 7 swims
100 Breaststroke SCY 1:22.53 11 swims
200 Breaststroke SCY 2:50.59 1 swim
50 Butterfly SCY 33.94 4 swims
100 Butterfly SCY 1:17.82 4 swims
100 Individual Medley SCY 1:11.79 4 swims
200 Individual Medley SCY 2:40.29 2 swims
50 Freestyle LCM 32.32 5 swims
100 Freestyle LCM 1:12.95 5 swims
200 Freestyle LCM 2:42.40 3 swims
400 Freestyle LCM 5:55.53 1 swim
50 Backstroke LCM 34.66 9 swims
100 Backstroke LCM 1:14.70 10 swims
200 Backstroke LCM 2:45.75 1 swim
50 Breaststroke LCM 39.10 7 swims
100 Breaststroke LCM 1:27.98 6 swims
50 Butterfly LCM 36.81 2 swims
100 Butterfly LCM 1:32.68 1 swim
200 Individual Medley LCM 2:58.00 1 swim