swimstats

Mason Umemoto

Mage 12HIHAQ

84 plausible swims · 16 meets · 2023-12-10 → 2026-07-19

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 29.21 BB+1.12s to A·+6.02s to Sectionals 2026-03-01 2026 HI Hawaiian Swimming SCY AGChampsfast pool
100 Freestyle SCY 1:03.24 BB+1.95s to A·+12.25s to Sectionals 2026-02-26 2026 HI Hawaiian Swimming SCY AGChampsfast pool
200 Freestyle SCY 2:23.69 BB+10.00s to A·+31.90s to Sectionals 2026-04-19 44th Annual Harry Mamizuka Invitationalvenue
50 Backstroke SCY 43.55 +5.06s to B·+19.86s to Futures 2024-10-19 Big Island Swimming
100 Backstroke SCY 1:33.83 +11.64s to B·+38.34s to Sectionals 2025-10-18 BIG ISLAND SWIMMING @ HPAvenue
50 Breaststroke SCY 40.68 B+0.59s to BB·+14.39s to Futures 2026-02-07 BIG ISLAND SWIMMING @ KCACfast pool
100 Breaststroke SCY 1:29.99 B+4.50s to BB·+26.80s to Sectionals 2026-03-07 2026 HI Junior Age Group SCY Championshipfast pool
50 Butterfly SCY 34.13 BB+2.94s to A·+11.24s to Futures 2026-04-18 44th Annual Harry Mamizuka Invitationalvenue
100 Butterfly SCY 1:16.47 B+0.38s to BB·+21.28s to Sectionals 2026-04-19 44th Annual Harry Mamizuka Invitationalvenue
100 Individual Medley SCY 1:16.52 B+0.63s to BB 2026-03-08 2026 HI Junior Age Group SCY Championshipfast pool
200 Individual Medley SCY 2:46.15 B+0.36s to BB·+42.16s to Sectionals 2026-02-28 2026 HI Hawaiian Swimming SCY AGChampsfast pool
50 Freestyle LCM 32.87 BB+0.78s to A·+5.88s to Sectionals 2026-07-19 2026 HISI LCM Championshipsvenue
100 Freestyle LCM 1:10.68 BB+0.29s to A·+11.69s to Sectionals 2026-07-16 2026 HISI LCM Championshipsvenue
200 Freestyle LCM 2:33.87 BB+0.28s to A·+25.18s to Sectionals 2026-07-17 2026 HISI LCM Championshipsvenue
400 Freestyle LCM 5:31.98 BB+5.29s to A·+57.59s to Sectionals 2026-07-16 2026 HISI LCM Championshipsvenue
50 Breaststroke LCM 50.20 +0.41s to B·+19.31s to Futures 2026-06-06 BIG ISLAND SWIMMING @ KSHvenue
100 Breaststroke LCM 1:58.26 +10.47s to B·+44.56s to Sectionals 2024-07-06 BIG ISLAND SWIMMING @ KSH
50 Butterfly LCM 36.86 BB+1.57s to A·+10.57s to Futures 2026-07-17 2026 HISI LCM Championshipsvenue
100 Butterfly LCM 1:26.09 BB+6.60s to A·+23.00s to Sectionals 2026-07-19 2026 HISI LCM Championshipsvenue
200 Individual Medley LCM 3:02.99 BB+8.80s to A·+38.30s to Sectionals 2026-07-18 2026 HISI LCM Championshipsvenue

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 32.13 flat 200 Free Relay 2025-11-08 BIG ISLAND SWIMMING @ KCAC
50 Breaststroke SCY 54.36 flying 200 Medley Relay (leg 2) 2023-12-10 2023-HI BIG ISLAND SWIMMING
50 Butterfly SCY 42.52 flying 200 Medley Relay (leg 3) 2025-10-18 BIG ISLAND SWIMMING @ HPA

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

1980 points (4/5 events — incomplete)

EventTime Points
400 FR LCM 5:31.98 638
100 BR LCM 1:58.26 297
100 FL LCM 1:26.09 488
200 IM LCM 3:02.99 557
100 BK LCM— 0

IMR 11-12 · SCY

2259 points (5/5 events)

EventTime Points
200 FR SCY 2:23.69 539
50 BK SCY 43.55 271
50 BR SCY 40.68 463
50 FL SCY 34.13 478
100 IM SCY 1:16.52 508

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

PR splits

100 Freestyle SCY 1:03.24

30.43
32.81

Front half 30.43s · back half 32.81s

200 Freestyle SCY 2:23.69

33.62
37.87
37.07
35.13

Front half 71.49s · back half 72.20s

100 Backstroke SCY 1:33.83

45.36
48.47

Front half 45.36s · back half 48.47s

100 Breaststroke SCY 1:29.99

42.27
47.72

Front half 42.27s · back half 47.72s

100 Butterfly SCY 1:16.47

36.88
39.59

Front half 36.88s · back half 39.59s

100 Individual Medley SCY 1:16.52

37.22
39.30

Front half 37.22s · back half 39.30s

200 Individual Medley SCY 2:46.15

37.76
45.12
49.31
33.96

Front half 82.88s · back half 83.27s

100 Freestyle LCM 1:10.68

34.59
36.09

Front half 34.59s · back half 36.09s

200 Freestyle LCM 2:33.87

36.24
40.81
39.26
37.56

Front half 77.05s · back half 76.82s

400 Freestyle LCM 5:31.98

38.51
41.49
43.39
43.20
40.81
41.97
42.25
40.36

Front half 166.59s · back half 165.39s

100 Butterfly LCM 1:26.09

41.15
44.94

Front half 41.15s · back half 44.94s

200 Individual Medley LCM 3:02.99

39.88
50.17
55.11
37.83

Front half 90.05s · back half 92.94s

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 29.21 9 swims
100 Freestyle SCY 1:03.24 5 swims
200 Freestyle SCY 2:23.69 1 swim
50 Backstroke SCY 43.55 1 swim
100 Backstroke SCY 1:33.83 1 swim
50 Breaststroke SCY 40.68 7 swims
100 Breaststroke SCY 1:29.99 6 swims
50 Butterfly SCY 34.13 10 swims
100 Butterfly SCY 1:16.47 4 swims
100 Individual Medley SCY 1:16.52 5 swims
200 Individual Medley SCY 2:46.15 4 swims
50 Freestyle LCM 32.87 6 swims
100 Freestyle LCM 1:10.68 3 swims
200 Freestyle LCM 2:33.87 4 swims
400 Freestyle LCM 5:31.98 2 swims
50 Breaststroke LCM 50.20 2 swims
100 Breaststroke LCM 1:58.26 2 swims
50 Butterfly LCM 36.86 3 swims
100 Butterfly LCM 1:26.09 4 swims
200 Individual Medley LCM 3:02.99 4 swims