Jacob Yu

Mage 10CTEZMAMRLGACMRZT

258 plausible swims · 53 meets · 2023-05-27 → 2026-08-01

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 15.59 2024-01-01 Metropolitan Swimming Club
50 Freestyle SCY 29.85 AA+1.06s to AAA·+7.46s to Sectionals 2025-11-29 2025 MR LIE Thanksgiving Invitationalvenue
100 Freestyle SCY 1:04.00 AAA+2.91s to AAAA·+15.51s to Sectionals 2026-05-31 2026 MR FREE Summer Splash - SCY day 2venue
200 Freestyle SCY 2:17.40 AAA+4.61s to AAAA·+31.11s to Sectionals 2026-01-17 2026 MR AGUA MLK Invitationalvenue
500 Freestyle SCY 6:19.61 AA+9.62s to AAA·+92.22s to Sectionals 2025-10-05 2025 MR FLY Flushing Y Distance Meetvenue
25 Backstroke SCY 19.11 2024-01-01 Metropolitan Swimming Club
50 Backstroke SCY 35.41 AA+1.22s to AAA·+11.72s to Futures 2026-03-13 2026 MR SC Junior Metropolitan Championshipsvenue
100 Backstroke SCY 1:16.08 AA+3.29s to AAA·+21.59s to Sectionals 2026-01-10 2026 MR WEST Chris Dewey Trophy Meetvenue
25 Breaststroke SCY 21.43 2024-01-01 Metropolitan Swimming Club
50 Breaststroke SCY 40.46 A+0.27s to AA·+14.17s to Futures 2026-05-31 2026 MR FREE Summer Splash - SCY day 2venue
100 Breaststroke SCY 1:25.82 AA+2.13s to AAA·+24.33s to Sectionals 2026-05-31 2026 MR FREE Summer Splash - SCY day 2venue
25 Butterfly SCY 18.48 2024-03-02 2024 MR Metro 8 & Under Championships
50 Butterfly SCY 31.60 AAA+0.81s to AAAA·+8.71s to Futures 2026-01-31 2026 MR LIE Second Chance Invitationalvenue
100 Butterfly SCY 1:08.18 AAAA·+14.99s to Sectionals 2026-05-31 2026 MR FREE Summer Splash - SCY day 2venue
100 Individual Medley SCY 1:14.59 AA+1.40s to AAA 2026-01-01 Metropolitan Swimming Club
200 Individual Medley SCY 2:30.72 AAAA·+31.33s to Sectionals 2025-01-01 Metropolitan Swimming Club
400 Freestyle SCM 5:18.08 AAA+9.09s to AAAA·+68.19s to Sectionals 2026-05-30 2026 MR FREE Summer Splash - SCMvenue
50 Butterfly SCM 34.71 AAA+0.62s to AAAA 2026-05-30 2026 MR FREE Summer Splash - SCMvenue
100 Butterfly SCM 1:15.56 AAAA·+16.57s to Sectionals 2026-05-30 2026 MR FREE Summer Splash - SCMvenue
50 Freestyle LCM 32.93 AAA+1.24s to AAAA·+7.44s to Sectionals 2026-05-09 2026 MR LIE May Extravaganza Invitationalvenue
100 Freestyle LCM 1:11.36 AAA+1.57s to AAAA·+15.87s to Sectionals 2026-07-29 2026 EZ LC Age Group Championshipfast pool
200 Freestyle LCM 2:42.44 AA+3.25s to AAA·+41.15s to Sectionals 2025-01-01 Metropolitan Swimming Club
400 Freestyle LCM 5:10.91 AAAA·+53.32s to Sectionals 2026-07-31 2026 EZ LC Age Group Championshipfast pool
50 Backstroke LCM 42.31 A+1.22s to AA·+14.42s to Futures 2025-07-12 2025 MR LIE Summer Sizzler Invitational
100 Backstroke LCM 1:24.67 AA+0.58s to AAA·+22.68s to Sectionals 2026-07-30 2026 EZ LC Age Group Championshipfast pool
50 Breaststroke LCM 51.20 BB+3.31s to A·+20.31s to Futures 2025-01-01 Metropolitan Swimming Club
100 Breaststroke LCM 1:39.41 AA+2.92s to AAA·+29.72s to Sectionals 2026-05-09 2026 MR LIE May Extravaganza Invitationalvenue
50 Butterfly LCM 34.57 AAAA·+8.28s to Futures 2026-07-30 2026 EZ LC Age Group Championshipfast pool
100 Butterfly LCM 1:14.11 AAAA·+13.92s to Sectionals 2026-07-29 2026 EZ LC Age Group Championshipfast pool
200 Individual Medley LCM 2:51.45 AAAA·+35.26s to Sectionals 2026-08-01 2026 EZ LC Age Group Championshipfast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.

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 1:27.79 flying 200 Free Relay (leg 3) 2026-01-10 2026 MR WEST Chris Dewey Trophy Meet
100 Freestyle SCY 1:09.13 flying 400 Free Relay (leg 2) 2026-03-13 2026 MR SC Junior Metropolitan Championships
50 Butterfly SCY 33.96 flying 200 Medley Relay (leg 3) 2026-01-11 2026 MR WEST Chris Dewey Trophy Meet
50 Freestyle LCM 33.33 flat 200 Free Relay 2026-07-29 2026 EZ LC Age Group Championship
50 Freestyle LCM 42.57 flying 200 Free Relay (leg 2) 2024-07-20 2024 Metropolitan LC Junior Met Championships
100 Freestyle LCM 1:13.94 flying 400 Free Relay (leg 3) 2026-07-31 2026 EZ LC Age Group Championship
50 Butterfly LCM 36.97 flying 200 Medley Relay (leg 3) 2026-08-01 2026 EZ LC Age Group Championship
100 Butterfly LCM 16.85 flying 400 Medley Relay (leg 3) 2026-07-30 2026 EZ LC Age Group Championship

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 10 & under · LCM

4554 points (5/5 events)

EventTime Points
200 FR LCM 2:42.44 814
100 BK LCM 1:24.67 843
100 BR LCM 1:39.41 784
100 FL LCM 1:14.11 1100
200 IM LCM 2:51.45 1013

IMR 10 & under · LCM

4158 points (5/5 events)

EventTime Points
100 FR LCM 1:11.36 935
50 BK LCM 42.31 668
50 BR LCM 51.20 532
50 FL LCM 34.57 1010
200 IM LCM 2:51.45 1013

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

PR splits

100 Freestyle SCY 1:04.00

30.58
33.42

Front half 30.58s · back half 33.42s

200 Freestyle SCY 2:17.40

31.97
35.47
35.62
34.34

Front half 67.44s · back half 69.96s

500 Freestyle SCY 6:19.61

32.62
38.62
39.65
38.09
39.35
39.52
38.74
38.65
38.98
35.39

Front half 188.33s · back half 191.28s

100 Backstroke SCY 1:16.08

36.90
39.18

Front half 36.90s · back half 39.18s

100 Breaststroke SCY 1:25.82

41.92
43.90

Front half 41.92s · back half 43.90s

100 Butterfly SCY 1:08.18

31.94
36.24

Front half 31.94s · back half 36.24s

100 Individual Medley SCY 1:14.59

36.13
38.46

Front half 36.13s · back half 38.46s

400 Freestyle SCM 5:18.08

35.95
40.32
40.95
41.34
40.88
41.13
41.27
36.24

Front half 158.56s · back half 159.52s

100 Butterfly SCM 1:15.56

36.89
38.67

Front half 36.89s · back half 38.67s

100 Freestyle LCM 1:11.36

34.40
36.96

Front half 34.40s · back half 36.96s

200 Freestyle LCM 2:42.44

45.20
97.49
38.08
79.54
122.61
162.44

400 Freestyle LCM 5:10.91

35.07
39.28
39.69
40.05
39.26
40.21
39.34
38.01

Front half 154.09s · back half 156.82s

100 Backstroke LCM 1:24.67

41.40
43.27

Front half 41.40s · back half 43.27s

100 Breaststroke LCM 1:39.41

49.50
49.91

Front half 49.50s · back half 49.91s

100 Butterfly LCM 1:14.11

35.53
38.58

Front half 35.53s · back half 38.58s

200 Individual Medley LCM 2:51.45

38.69
44.87
50.31
37.58

Front half 83.56s · back half 87.89s

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.

25 Freestyle SCY 15.59 2 swims
50 Freestyle SCY 29.85 25 swims
100 Freestyle SCY 1:04.00 18 swims
200 Freestyle SCY 2:17.40 8 swims
500 Freestyle SCY 6:19.61 1 swim
25 Backstroke SCY 19.11 2 swims
50 Backstroke SCY 35.41 20 swims
100 Backstroke SCY 1:16.08 11 swims
25 Breaststroke SCY 21.43 1 swim
50 Breaststroke SCY 40.46 18 swims
100 Breaststroke SCY 1:25.82 14 swims
25 Butterfly SCY 18.48 4 swims
50 Butterfly SCY 31.60 28 swims
100 Butterfly SCY 1:08.18 17 swims
100 Individual Medley SCY 1:14.59 9 swims
200 Individual Medley SCY 2:30.72 10 swims
400 Freestyle SCM 5:18.08 1 swim
50 Butterfly SCM 34.71 1 swim
100 Butterfly SCM 1:15.56 1 swim
50 Freestyle LCM 32.93 11 swims
100 Freestyle LCM 1:11.36 5 swims
200 Freestyle LCM 2:42.44 2 swims
400 Freestyle LCM 5:10.91 3 swims
50 Backstroke LCM 42.31 9 swims
100 Backstroke LCM 1:24.67 6 swims
50 Breaststroke LCM 51.20 7 swims
100 Breaststroke LCM 1:39.41 5 swims
50 Butterfly LCM 34.57 9 swims
100 Butterfly LCM 1:14.11 5 swims
200 Individual Medley LCM 2:51.45 4 swims