James Jacobsen

Mage 14CZIAINMWOKOZSDMACMW

210 plausible swims · 36 meets · 2022-01-01 → 2026-06-28

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 22.93 AAA+0.54s to AAAA 2026-03-07 2026 MW Midwestern Senior Short Course Champs fast pool
100 Freestyle SCY 48.55 AAAA 2026-01-01 1660388
200 Freestyle SCY 1:46.75 AAAA 2026-03-06 2026 MW Midwestern Senior Short Course Champs fast pool
500 Freestyle SCY 4:48.78 AAAA 2026-01-01 1660388
50 Backstroke SCY 25.34 AAA+0.05s to AAAA 2026-02-20 2026 MW Midwestern Age Group Short Course
100 Backstroke SCY 54.44 AAA+0.95s to AAAA 2026-03-07 2026 MW Midwestern Senior Short Course Champs fast pool
200 Backstroke SCY 1:59.84 AAA+3.45s to AAAA 2026-01-01 1660388
100 Breaststroke SCY 1:06.70 A+0.51s to AA 2025-12-14 2025 MW CBSC NTS Holiday Classic venue
200 Breaststroke SCY 2:28.45 A+4.46s to AA 2025-12-13 2025 MW CBSC NTS Holiday Classic
100 Butterfly SCY 59.18 A+1.29s to AA 2025-10-04 2025 MW ACE River Races
100 Individual Medley SCY 55.46 2026-02-20 2026 MW Midwestern Age Group Short Course
200 Individual Medley SCY 1:59.10 AAA+0.61s to AAAA 2026-03-08 2026 MW Midwestern Senior Short Course Champs fast pool
400 Individual Medley SCY 4:36.00 AA+10.61s to AAA 2025-11-01 2025 MW SCSC November Classic
50 Freestyle LCM 25.71 AAA+0.02s to AAAA 2026-06-26 2026 MW LSS Capital City Classic
100 Freestyle LCM 55.51 AAAA 2026-06-26 2026 MW LSS Capital City Classic
200 Freestyle LCM 2:03.88 AAA+0.89s to AAAA 2026-05-01 2026 MW Swim Omaha Spring Classic
400 Freestyle LCM 4:28.95 AAA+6.46s to AAAA 2026-06-26 2026 MW LSS Capital City Classic venue
800 Freestyle LCM 10:37.28 BB+15.89s to A 2023-08-04 2023 Central Zone 14 & U Championship - KS slow pool
1500 Freestyle LCM 17:55.58 AAA+32.09s to AAAA 2024-08-08 Central Zone 14&U Championship
50 Backstroke LCM 30.27 AAA+0.58s to AAAA 2024-08-08 Central Zone 14&U Championship
100 Backstroke LCM 1:05.23 AAA+2.44s to AAAA 2026-06-26 2026 MW LSS Capital City Classic
200 Backstroke LCM 2:21.76 AAA+5.27s to AAAA 2026-06-26 2026 MW LSS Capital City Classic
50 Breaststroke LCM 38.73 BB+0.94s to A 2024-07-26 2024 MW Midwestern LC Championship
100 Breaststroke LCM 1:19.29 A+2.10s to AA 2026-04-25 2026 MW GOAL Sprint Cup venue
50 Butterfly LCM 31.38 A+0.79s to AA 2024-05-11 2024 IA DSMY May LCM Invitational slow pool
200 Individual Medley LCM 2:24.74 AA+0.95s to AAA 2026-06-26 2026 MW LSS Capital City Classic venue
400 Individual Medley LCM 5:09.95 AA+2.46s to AAA 2026-05-01 2026 MW Swim Omaha Spring Classic

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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 22.25 flying 200 Medley Relay (leg 4) 2026-03-13 2026 MV Region VIII Speedo Spring Sectionals
100 Freestyle SCY 49.08 flying 400 Free Relay (leg 3) 2026-03-14 Region VIII Speedo Spring Sectionals
100 Freestyle SCY 49.86 flying 400 Medley Relay (leg 4) 2026-03-15 Region VIII Speedo Spring Sectionals
50 Freestyle LCM 27.34 flying 200 Free Relay (leg 4) 2024-08-02 2024 Central Zone 14 & U Championship - ND
100 Freestyle LCM 1:10.47 flat 400 Free Relay 2023-08-06 2023 Central Zone 14 & U Championship - KS
100 Freestyle LCM 1:01.95 flying 400 Free Relay (leg 4) 2024-08-04 2024 Central Zone 14 & U Championship - ND
50 Backstroke LCM 33.12 flat 200 Medley Relay 2024-08-03 2024 Central Zone 14 & U Championship - ND
100 Backstroke LCM 1:12.86 flat 400 Medley Relay 2024-08-03 2024 Central Zone 14 & U Championship - ND

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 13-14 · SCY

4357 points (5/6 events — incomplete)

EventTime Points
500 FR SCY 4:48.78 1005
200 BK SCY 1:59.84 906
200 BR SCY 2:28.45 690
200 IM SCY 1:59.10 984
400 IM SCY 4:36.00 772
200 FL SCY 0

IMR 13-14 · SCY

4390 points (5/5 events)

EventTime Points
200 FR SCY 1:46.75 1003
100 BK SCY 54.44 948
100 BR SCY 1:06.70 742
100 FL SCY 59.18 713
200 IM SCY 1:59.10 984

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

PR splits

200 Freestyle SCY 1:46.75

24.76
27.71
28.15
26.13

Front half 52.47s · back half 54.28s

100 Backstroke SCY 54.44

26.60
27.84

Front half 26.60s · back half 27.84s

100 Breaststroke SCY 1:06.70

31.66
35.04

Front half 31.66s · back half 35.04s

200 Individual Medley SCY 1:59.10

25.57
30.66
36.00
26.87

Front half 56.23s · back half 62.87s

400 Freestyle LCM 4:28.95

30.28
33.91
34.93
35.00
34.96
33.85
33.58
32.44

Front half 134.12s · back half 134.83s

800 Freestyle LCM 10:37.28

35.66
40.50
41.18
41.57
40.94
41.34
40.79
40.45
40.66
40.97
37.02
43.51
40.12
39.85
36.28
36.44

Front half 322.43s · back half 314.85s

1500 Freestyle LCM 17:55.58 split/total mismatch

31.51
34.36
35.51
35.56
35.04
35.51
35.77
35.46
36.03
35.21
36.02
34.96
35.89
35.32
35.82
35.98
35.34
35.87
35.44
34.75
35.55
35.55
33.69
31.72
34.48
27.52
35.05
35.38
34.73
35.69
35.62
35.49
35.51
35.68
35.40
35.65
35.73
35.78
35.91
35.70
35.64
35.86
35.40
35.57
35.84
34.01
31.44
34.59
35.36
35.38
35.16
34.88
35.82
35.78
35.97
35.76
35.64
35.45
35.82
36.38
36.77
36.51
37.14
35.57
36.47
36.41
36.23
36.57
34.03
31.04
34.84
35.09
35.17
35.39
35.03
35.20
35.95
35.08
35.50
36.20
35.78
36.27
37.24
36.56
35.99
36.94
36.25
34.45
34.20
31.83
35.34
35.34
35.97
36.07
35.49
35.31
36.69
35.73
35.83
36.55
35.66
35.94
36.81
35.64
35.76
36.29
36.13
36.04
36.54
35.70
35.22
34.14
30.56
34.23
35.91
35.92
35.64
36.18
36.81
36.41
36.93
36.60
36.22
37.23
36.57
36.22
36.56
36.79
36.34
36.67
36.45
36.10
35.87
34.94
33.29
34.82
35.94
34.84
36.14
35.31
36.55
36.17
36.12
35.35
36.94
35.02
35.79
31.17
42.19
35.89
35.38
36.23
35.97
36.55
35.71
36.39
35.47
36.32
35.28
34.82
31.55
34.80
34.77
35.04
33.17
35.72
36.90
35.73
30.81
36.91
36.49
36.02
35.29
31.36
35.83
36.49
35.61
37.21
35.71
38.07
36.97
38.63
36.58
34.51
37.03
33.90
32.32
36.48
36.42
35.89
36.73
36.52
36.26
36.54
36.08
36.63
36.25
36.40
34.10
32.16
35.43
36.63
35.56
36.24
35.44
36.34
36.70
36.40
36.46
36.52
36.20
36.48
35.19
35.66
35.95
35.68
35.94
36.87
36.13
34.98
36.31
35.57
36.25
36.51
36.39
36.14
36.76
36.90
36.43
35.98
36.21
36.12
36.39
34.52
32.06
34.85
35.68
35.75
36.05
36.03
36.25
36.16
36.02
36.17
36.34
37.10
36.44
36.35
36.24
36.29
36.17
36.66
36.15
36.42
36.23
35.97
33.90
34.06
35.11
35.35
35.98
36.35
36.11
37.57
34.34
38.38
39.83
36.81
36.56
36.37
30.87
42.45
42.04
36.85
35.93
35.97
36.58
35.49
33.15
34.92
35.39
35.60
35.89
36.02
36.31
36.23
36.57
35.99
39.16
38.34
37.78
38.76
38.84
37.89
40.25
40.54
36.27
35.03
34.49
34.40
31.98
36.18
37.36
38.04
37.54
36.88
37.71
37.45
36.41
37.57
37.60
36.87
36.84
37.03
36.99
37.15
36.69
35.89
36.93
36.78
35.84
35.76
32.37
35.77
35.77
37.36
37.74
36.38
37.14
37.65
36.76
37.18
37.55
36.47
37.00
37.04
36.38
37.11
37.17
36.22
37.15
36.61
36.39
37.22
35.46

100 Breaststroke LCM 1:19.29

37.86
41.43

Front half 37.86s · back half 41.43s

200 Individual Medley LCM 2:24.74

33.12
37.08
44.56
29.98

Front half 70.20s · back half 74.54s

Reaction time

fastest 0.68s average 0.703s slowest 0.73s 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.

Progression

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

50 Freestyle SCY 22.93 5 swims
100 Freestyle SCY 48.55 18 swims
200 Freestyle SCY 1:46.75 20 swims
500 Freestyle SCY 4:48.78 9 swims
50 Backstroke SCY 25.34 6 swims
100 Backstroke SCY 54.44 17 swims
200 Backstroke SCY 1:59.84 11 swims
100 Breaststroke SCY 1:06.70 1 swim
200 Breaststroke SCY 2:28.45 2 swims
100 Butterfly SCY 59.18 4 swims
100 Individual Medley SCY 55.46 6 swims
200 Individual Medley SCY 1:59.10 17 swims
400 Individual Medley SCY 4:36.00 2 swims
50 Freestyle LCM 25.71 12 swims
100 Freestyle LCM 55.51 12 swims
200 Freestyle LCM 2:03.88 9 swims
400 Freestyle LCM 4:28.95 5 swims
800 Freestyle LCM 10:37.28 1 swim
1500 Freestyle LCM 17:55.58 1 swim
50 Backstroke LCM 30.27 7 swims
100 Backstroke LCM 1:05.23 13 swims
200 Backstroke LCM 2:21.76 13 swims
50 Breaststroke LCM 38.73 4 swims
100 Breaststroke LCM 1:19.29 3 swims
50 Butterfly LCM 31.38 1 swim
200 Individual Medley LCM 2:24.74 9 swims
400 Individual Medley LCM 5:09.95 2 swims