Jin Yamamoto

Mage 51PNPSM

6 plausible swims · 1 meets · 2025-08-07 → 2025-08-10

Personal records

EventCourseBest CutDateMeet
100 Freestyle LCM 1:10.25 +11.26s to Sectionals 2025-08-07 2025 USMS Summer Nationals- OBSERVEDvenue
200 Freestyle LCM 2:36.83 +28.14s to Sectionals 2025-08-09 2025 USMS Summer Nationals- OBSERVEDvenue
200 Backstroke LCM 2:53.93 +32.44s to Sectionals 2025-08-10 2025 USMS Summer Nationals- OBSERVEDvenue
50 Butterfly LCM 32.14 +6.75s to Futures 2025-08-10 2025 USMS Summer Nationals- OBSERVEDvenue
200 Individual Medley LCM 2:51.71 +27.02s to Sectionals 2025-08-09 2025 USMS Summer Nationals- OBSERVEDvenue
400 Individual Medley LCM 6:13.91 +66.12s to Sectionals 2025-08-07 2025 USMS Summer Nationals- OBSERVEDvenue

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Butterfly LCM 32.62 flying 200 Medley Relay (leg 3) 2025-08-07 2025 USMS Summer Nationals- OBSERVED

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 LCM 1:10.25 RT 0.76s

34.50
35.75

Front half 34.50s · back half 35.75s

200 Freestyle LCM 2:36.83 RT 0.76s

36.80
40.48
40.26
39.29

Front half 77.28s · back half 79.55s

200 Backstroke LCM 2:53.93 RT 0.80s

41.50
43.54
44.76
44.13

Front half 85.04s · back half 88.89s

200 Individual Medley LCM 2:51.71 RT 0.76s

33.83
43.95
52.70
41.23

Front half 77.78s · back half 93.93s

400 Individual Medley LCM 6:13.91 RT 0.82s

36.80
45.20
47.39
101.47
55.08
44.35
43.62

Reaction time

fastest 0.70s average 0.767s slowest 0.82s 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.

100 Freestyle LCM 1:10.25 1 swim
200 Freestyle LCM 2:36.83 1 swim
200 Backstroke LCM 2:53.93 1 swim
50 Butterfly LCM 32.14 1 swim
200 Individual Medley LCM 2:51.71 1 swim
400 Individual Medley LCM 6:13.91 1 swim