David Zimmerman

Mage 16CACCMTPCPNLIBRRAUNUN-02UN04

251 plausible swims · 41 meets · 2023-01-14 → 2026-08-01

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 22.24 AAA+0.85s to AAAA·Sectionals ✓+0.95s to Futures 2025-11-02 2025 CA Tom Hamilton Memorial Invitevenue
100 Freestyle SCY 47.42 AAA+0.63s to AAAA·Sectionals ✓+1.03s to Futures 2026-05-09 2026 CIF CENTRAL SECTION D1 CHAMPIONSHIPS -venue
200 Freestyle SCY 1:44.30 AAA+2.11s to AAAA·Sectionals ✓+2.71s to Futures 2026-05-08 2026 TYR GO Challengevenue
500 Freestyle SCY 4:50.16 AAA+12.37s to AAAA·Sectionals ✓+13.07s to Futures 2025-05-10 2025 CIF CENTRAL SECTION D1 CHAMPIONSHIPSvenue
1000 Freestyle SCY 10:04.78 AAA+25.89s to AAAA·Sectionals ✓+30.49s to Futures 2025-11-21 2025 CANY Cranberryvenue
1650 Freestyle SCY 17:42.92 A+6.03s to AA·+6.03s to Sectionals 2025-11-23 2025 CANY Cranberryvenue
100 Backstroke SCY 54.90 AA+1.61s to AAA·Sectionals ✓+3.41s to Futures 2025-05-10 2025 CIF CENTRAL SECTION D1 CHAMPIONSHIPSvenue
200 Backstroke SCY 2:07.05 A+5.06s to AA·+5.76s to Sectionals 2025-02-17 2025 CCS SCY AGCvenue
100 Breaststroke SCY 1:08.41 BB+2.42s to A·+5.22s to Sectionals 2025-01-19 Fresno Dolphins Swim Team Senior Prelim-Finalvenue
50 Butterfly SCY 24.06 AAA+0.27s to AAAA·+1.17s to Futures 2025-11-01 2025 CA Tom Hamilton Memorial Invitevenue
200 Individual Medley SCY 2:09.99 BB+0.30s to A·+6.00s to Sectionals 2025-02-17 2025 CCS SCY AGCvenue
50 Freestyle LCM 25.20 AAA+0.41s to AAAA·Sectionals ✓+0.61s to Futures 2025-07-20 Renee and Jim Patterson Meet 2025venue
100 Freestyle LCM 55.49 AAA+1.60s to AAAA·Sectionals ✓+1.90s to Futures 2026-01-01 WZ Group B - 2026-07-28 to 2026-08-01
200 Freestyle LCM 2:02.39 AAA+4.40s to AAAA·Sectionals ✓+4.60s to Futures 2025-07-18 Renee and Jim Patterson Meet 2025venue
400 Freestyle LCM 4:26.75 AA+3.06s to AAA·Sectionals ✓+16.76s to Futures 2026-07-18 2026 CA/NV Summer Speedo Sectionals @ BREA -venue
800 Freestyle LCM 9:19.04 AA+12.55s to AAA·Sectionals ✓+38.35s to Futures 2025-07-20 Renee and Jim Patterson Meet 2025venue
100 Backstroke LCM 1:04.30 AA+1.81s to AAA·Sectionals ✓+3.71s to Futures 2025-07-17 Renee and Jim Patterson Meet 2025venue
50 Breaststroke LCM 33.08 AA+0.19s to AAA·+2.19s to Futures 2026-01-01 Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01
100 Breaststroke LCM 1:19.46 BB+2.47s to A·+5.76s to Sectionals 2025-06-21 SLOS 2025 Firecracker Invitationalvenue
50 Butterfly LCM 27.19 AAA+0.30s to AAAA·+0.90s to Futures 2026-01-01 Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01
100 Butterfly LCM 1:01.92 AA+1.43s to AAA·Sectionals ✓+3.93s to Futures 2025-07-18 Renee and Jim Patterson Meet 2025venue
200 Individual Medley LCM 2:20.76 AA+2.07s to AAA·Sectionals ✓+7.97s to Futures 2026-07-17 2026 CA/NV Summer Speedo Sectionals @ BREA -venue
400 Individual Medley LCM 5:09.58 A+0.59s to AA·+1.79s to Sectionals 2026-06-21 2026 SLOS Firecracker Invitationalvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.

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 Freestyle SCY 21.73 flat 200 Free Relay 2026-05-09 2026 CIF CENTRAL SECTION D1 CHAMPIONSHIPS -
100 Freestyle SCY 48.43 flying 400 Medley Relay (leg 4) 2025-12-05 2025 Holiday Swim Festival
100 Freestyle SCY 47.08 flying 400 Free Relay (leg 4) 2026-05-09 2026 CIF CENTRAL SECTION D1 CHAMPIONSHIPS -
50 Butterfly SCY 24.54 flying 200 Medley Relay (leg 3) 2025-12-06 2025 Holiday Swim Festival
50 Freestyle LCM 25.17 flying 200 Free Relay (leg 2) 2025-07-19 Renee and Jim Patterson Meet 2025
100 Freestyle LCM 1:01.91 flying 400 Free Relay (leg 3) 2024-06-30 Arena Grand Challenge 2024
100 Backstroke LCM 1:12.00 flat 400 Medley Relay 2024-06-29 Arena Grand Challenge 2024
50 Breaststroke LCM 34.30 flying 200 Medley Relay (leg 2) 2025-07-19 Renee and Jim Patterson Meet 2025

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 15-16 · LCM

2403 points (3/6 events — incomplete)

EventTime Points
400 FR LCM 4:26.75 829
200 IM LCM 2:20.76 826
400 IM LCM 5:09.58 748
200 BK LCM 0
200 BR LCM 0
200 FL LCM 0

IMR 15-16 · LCM

3906 points (5/5 events)

EventTime Points
200 FR LCM 2:02.39 884
100 BK LCM 1:04.30 791
100 BR LCM 1:19.46 601
100 FL LCM 1:01.92 804
200 IM LCM 2:20.76 826

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

PR splits

100 Freestyle SCY 47.42

22.78
24.64

Front half 22.78s · back half 24.64s

200 Freestyle SCY 1:44.30

23.98
26.24
27.33
26.75

Front half 50.22s · back half 54.08s

500 Freestyle SCY 4:50.16

26.03
28.39
28.45
29.48
29.48
29.77
30.08
30.12
29.54
28.82

Front half 141.83s · back half 148.33s

1000 Freestyle SCY 10:04.78

26.14
28.29
29.43
30.08
30.29
30.71
30.57
30.70
30.55
30.61
30.94
31.22
31.33
31.16
31.17
31.47
30.21
30.53
30.40
28.98

Front half 297.37s · back half 307.41s

1650 Freestyle SCY 17:42.92

28.75
30.96
32.47
32.55
33.15
33.02
32.49
32.97
32.76
33.24
33.19
32.46
33.97
33.02
33.56
33.01
32.99
31.95
32.54
32.40
32.33
32.71
33.33
31.24
32.37
31.56
30.56
31.62
32.15
31.53
31.02
30.71
30.34

100 Backstroke SCY 54.90

26.37
28.53

Front half 26.37s · back half 28.53s

200 Backstroke SCY 2:07.05

29.23
32.26
33.66
31.90

Front half 61.49s · back half 65.56s

100 Breaststroke SCY 1:08.41

31.16
37.25

Front half 31.16s · back half 37.25s

200 Individual Medley SCY 2:09.99

27.40
32.51
39.48
30.60

Front half 59.91s · back half 70.08s

50 Freestyle LCM 25.20

25.20
25.20

100 Freestyle LCM 55.49

26.43
29.06

Front half 26.43s · back half 29.06s

200 Freestyle LCM 2:02.39

28.25
28.25
59.06
59.06
91.46
91.46
122.39
122.39

400 Freestyle LCM 4:26.75 RT 0.73s

29.02
32.28
33.66
34.16
34.13
34.39
34.97
34.14

Front half 129.12s · back half 137.63s

800 Freestyle LCM 9:19.04

31.62
31.62
65.97
65.97
101.51
101.51
137.29
137.29
172.93
172.93
208.73
208.73
244.69
244.69
280.35
280.35
315.08
315.08
350.49
350.49
386.43
386.43
422.34
422.34
458.40
458.40
493.47
493.47
527.13
527.13
559.04
559.04

100 Backstroke LCM 1:04.30

30.88
30.88
64.30
64.30

100 Breaststroke LCM 1:19.46

36.51
42.95

Front half 36.51s · back half 42.95s

100 Butterfly LCM 1:01.92

37.99
23.93

Front half 37.99s · back half 23.93s

200 Individual Medley LCM 2:20.76

28.20
36.25
43.12
33.19

Front half 64.45s · back half 76.31s

400 Individual Medley LCM 5:09.58

29.97
36.93
40.10
40.80
45.69
47.17
34.61
34.31

Front half 147.80s · back half 161.78s

Reaction time

fastest 0.67s average 0.737s slowest 0.88s 12 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.

50 Freestyle SCY 22.24 11 swims
100 Freestyle SCY 47.42 40 swims
200 Freestyle SCY 1:44.30 33 swims
500 Freestyle SCY 4:50.16 6 swims
1000 Freestyle SCY 10:04.78 3 swims
1650 Freestyle SCY 17:42.92 2 swims
100 Backstroke SCY 54.90 11 swims
200 Backstroke SCY 2:07.05 3 swims
100 Breaststroke SCY 1:08.41 4 swims
50 Butterfly SCY 24.06 2 swims
200 Individual Medley SCY 2:09.99 2 swims
50 Freestyle LCM 25.20 24 swims
100 Freestyle LCM 55.49 18 swims
200 Freestyle LCM 2:02.39 17 swims
400 Freestyle LCM 4:26.75 5 swims
800 Freestyle LCM 9:19.04 1 swim
100 Backstroke LCM 1:04.30 7 swims
50 Breaststroke LCM 33.08 12 swims
100 Breaststroke LCM 1:19.46 2 swims
50 Butterfly LCM 27.19 34 swims
100 Butterfly LCM 1:01.92 6 swims
200 Individual Medley LCM 2:20.76 6 swims
400 Individual Medley LCM 5:09.58 1 swim