Jacob YU

Mage 10CTMAMRLGAC

197 plausible swims · 58 meets · 2023-01-01 → 2026-05-31

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 2025-11-29 2025 MR LIE Thanksgiving Invitational venue
100 Freestyle SCY 1:04.00 AAA+2.91s to AAAA 2026-05-31 2026 MR FREE Summer Splash - SCY day 2
200 Freestyle SCY 2:17.40 AAA+4.61s to AAAA 2026-01-17 2026 MR AGUA MLK Invitational venue
500 Freestyle SCY 6:19.61 AA+9.62s to AAA 2025-10-05 2025 MR FLY Flushing Y Distance Meet venue
25 Backstroke SCY 19.11 2024-01-01 Metropolitan Swimming Club
50 Backstroke SCY 35.41 AA+1.22s to AAA 2026-03-13 2026 MR SC Junior Metropolitan Championships venue
100 Backstroke SCY 1:16.08 AA+3.29s to AAA 2026-01-10 2026 MR WEST Chris Dewey Trophy Meet venue
25 Breaststroke SCY 21.43 2024-01-01 Metropolitan Swimming Club
50 Breaststroke SCY 40.46 A+0.27s to AA 2026-05-31 2026 MR FREE Summer Splash - SCY day 2
100 Breaststroke SCY 1:25.82 AA+2.13s to AAA 2026-05-31 2026 MR FREE Summer Splash - SCY day 2
25 Butterfly SCY 1:10.85 2024-01-01 Metropolitan Swimming Club
50 Butterfly SCY 31.60 AAA+0.81s to AAAA 2026-01-31 2026 MR LIE Second Chance Invitational venue
100 Butterfly SCY 1:08.18 AAAA 2026-05-31 2026 MR FREE Summer Splash - SCY day 2 venue
100 Individual Medley SCY 1:14.59 AA+1.40s to AAA 2026-01-01 Metropolitan Swimming Club
200 Individual Medley SCY 2:35.48 AAA+4.59s to AAAA 2026-01-10 2026 MR WEST Chris Dewey Trophy Meet venue
400 Freestyle SCM 5:18.08 AAA+9.09s to AAAA 2026-05-30 2026 MR FREE Summer Splash - SCM venue
50 Butterfly SCM 34.71 AAA+0.62s to AAAA 2026-05-30 2026 MR FREE Summer Splash - SCM venue
100 Butterfly SCM 1:15.56 AAAA 2026-05-30 2026 MR FREE Summer Splash - SCM venue
50 Freestyle LCM 32.93 AAA+1.24s to AAAA 2026-05-08 lie 8may2026
100 Freestyle LCM 1:31.91 B+1.22s to BB 2024-05-26 2024 MR AGUA Memorial Day Invitational venue
400 Freestyle LCM 5:57.51 A+5.62s to AA 2025-05-09 lie 09may2025
50 Backstroke LCM 42.31 A+1.22s to AA 2025-01-01 lie 12july2025
100 Backstroke LCM 1:38.97 BB+6.68s to A 2024-06-22 2024 MR RED Tails International Invitational venue
50 Breaststroke LCM 51.20 BB+3.31s to A 2025-01-01 Metropolitan Swimming Club
100 Breaststroke LCM 1:39.41 AA+2.92s to AAA 2026-05-09 2026 MR LIE May Extravaganza Invitational venue
50 Butterfly LCM 35.26 AAA+0.57s to AAAA 2026-05-08 2026 MR LIE May Extravaganza Invitational
100 Butterfly LCM 1:19.18 AAAA 2026-05-09 2026 MR LIE May Extravaganza Invitational venue
200 Individual Medley LCM 3:01.82 AA+0.73s to AAA 2025-01-01 Metropolitan Swimming Club

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

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Butterfly SCY 33.96 flying 200 Medley Relay (leg 3) 2026-01-11 2026 MR WEST Chris Dewey Trophy Meet

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 · SCY

4404 points (5/5 events)

EventTime Points
200 FR SCY 2:17.40 900
100 BK SCY 1:16.08 745
100 BR SCY 1:25.82 773
100 FL SCY 1:08.18 1072
200 IM SCY 2:35.48 914

IMR 10 & under · SCY

4074 points (5/5 events)

EventTime Points
100 FR SCY 1:04.00 852
50 BK SCY 35.41 751
50 BR SCY 40.46 727
50 FL SCY 31.60 925
100 IM SCY 1:14.59 819

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

200 Individual Medley SCY 2:35.48

34.38
40.04
47.30
33.76

Front half 74.42s · back half 81.06s

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 1:31.91

43.64
48.27

Front half 43.64s · back half 48.27s

400 Freestyle LCM 5:57.51

40.42
45.58
45.81
47.31
45.63
47.56
44.89
40.31

Front half 179.12s · back half 178.39s

100 Backstroke LCM 1:38.97

48.48
50.49

Front half 48.48s · back half 50.49s

100 Breaststroke LCM 1:39.41

49.50
49.91

Front half 49.50s · back half 49.91s

100 Butterfly LCM 1:19.18

37.52
41.66

Front half 37.52s · back half 41.66s

200 Individual Medley LCM 3:01.82

39.63
46.12
56.37
39.70

Front half 85.75s · back half 96.07s

Progression

Faster times are higher. One card per event, all courses & history.

25 Freestyle SCY 15.59 2 swims
50 Freestyle SCY 29.85 22 swims
100 Freestyle SCY 1:04.00 15 swims
200 Freestyle SCY 2:17.40 8 swims
500 Freestyle SCY 6:19.61 1 swim
25 Backstroke SCY 19.11 1 swim
50 Backstroke SCY 35.41 11 swims
100 Backstroke SCY 1:16.08 6 swims
25 Breaststroke SCY 21.43 1 swim
50 Breaststroke SCY 40.46 15 swims
100 Breaststroke SCY 1:25.82 14 swims
25 Butterfly SCY 1:10.85 1 swim
50 Butterfly SCY 31.60 18 swims
100 Butterfly SCY 1:08.18 11 swims
100 Individual Medley SCY 1:14.59 6 swims
200 Individual Medley SCY 2:35.48 8 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 12 swims
100 Freestyle LCM 1:31.91 3 swims
400 Freestyle LCM 5:57.51 1 swim
50 Backstroke LCM 42.31 9 swims
100 Backstroke LCM 1:38.97 3 swims
50 Breaststroke LCM 51.20 8 swims
100 Breaststroke LCM 1:39.41 4 swims
50 Butterfly LCM 35.26 10 swims
100 Butterfly LCM 1:19.18 2 swims
200 Individual Medley LCM 3:01.82 2 swims