Cooper Sanders

Mage 17COFLJHNJ

224 plausible swims · 46 meets · 2019-09-28 → 2026-06-27

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.97	AA+0.88s to AAA·Sectionals ✓+1.68s to Futures	2026-03-28	Destination Athlete Centennial Invite - 2026 venue
100 Freestyle	SCY	49.38	AA+1.09s to AAA·Sectionals ✓+2.99s to Futures	2025-03-14	2025 CO NJ Mile High Championships
200 Freestyle	SCY	1:48.19	AA+1.80s to AAA·Sectionals ✓+6.60s to Futures	2026-03-27	Destination Athlete Centennial Invite - 2026 venue
500 Freestyle	SCY	4:59.06	AA+10.47s to AAA·Sectionals ✓+21.97s to Futures	2026-03-28	Destination Athlete Centennial Invite - 2026 venue
1000 Freestyle	SCY	11:41.57	BB+42.18s to A·+67.58s to Sectionals	2025-01-01	2025 CO NJ Pineapple Invite
50 Backstroke	SCY	36.43	+5.24s to B·+12.74s to Futures	2021-09-25	2021 CO Jeffco September Open slow pool
100 Backstroke	SCY	56.16	A+1.27s to AA·+0.67s to Sectionals	2026-03-28	Destination Athlete Centennial Invite - 2026 venue
200 Backstroke	SCY	2:08.26	BB+3.07s to A·+6.97s to Sectionals	2024-12-15	2024 CO FAST Bill Spahn Mid Season Finale venue
50 Breaststroke	SCY	49.05	+13.06s to B·+22.76s to Futures	2020-02-15	2020 CO Jeffco February Finale slow pool
100 Breaststroke	SCY	1:13.42	B+3.33s to BB·+10.23s to Sectionals	2024-10-19	2024 CO MACS Fall Invitational venue
200 Breaststroke	SCY	2:52.84	+8.65s to B·+35.55s to Sectionals	2023-12-16	2023 CO Suburban League Distance Invitational slow pool
50 Butterfly	SCY	35.95	+4.76s to B·+13.06s to Futures	2021-09-25	2021 CO Jeffco September Open slow pool
100 Butterfly	SCY	53.38	AA+1.39s to AAA·Sectionals ✓+2.79s to Futures	2026-04-30	2026 CO OB Jeffco League Championships
200 Butterfly	SCY	2:19.42	B+1.23s to BB·+16.03s to Sectionals	2026-02-14	2026 CO NJ Groundhog Invite fast pool
100 Individual Medley	SCY	1:20.31		2021-12-11	2021 CO FAST Mid-Season SC Finale venue
200 Individual Medley	SCY	2:02.11	AA+4.62s to AAA·Sectionals ✓+8.22s to Futures	2026-02-13	2026 CO NJ Groundhog Invite fast pool
400 Individual Medley	SCY	4:24.97	A+0.48s to AA·+0.28s to Sectionals	2026-03-27	Destination Athlete Centennial Invite - 2026 venue
50 Freestyle	LCM	26.71	A+0.02s to AA·Sectionals ✓+2.12s to Futures	2025-07-24	2025 RAFC Last Splash Invitational venue
100 Freestyle	LCM	57.57	AA+1.98s to AAA·Sectionals ✓+3.98s to Futures	2025-07-27	2025 RAFC Last Splash Invitational venue
200 Freestyle	LCM	2:06.72	AA+4.53s to AAA·Sectionals ✓+8.93s to Futures	2026-06-13	2026 CO CSI Long Course Open fast pool
400 Freestyle	LCM	4:33.84	A+1.45s to AA·Sectionals ✓+23.85s to Futures	2025-07-25	2025 RAFC Last Splash Invitational venue
50 Backstroke	LCM	31.02	A+0.33s to AA·+3.13s to Futures	2026-04-11	2026 CO TOPS SBL Pentathlon 13&O venue
100 Backstroke	LCM	1:05.77	A+1.08s to AA·+0.58s to Sectionals	2026-06-13	2026 CO CSI Long Course Open fast pool
200 Backstroke	LCM	2:28.38	BB+1.29s to A·+6.89s to Sectionals	2025-06-13	2025 CO CSI Long Course Open fast pool
100 Breaststroke	LCM	1:30.62	+2.53s to B·+16.92s to Sectionals	2024-06-01	2024 CO NOCO-NJ Invite venue
50 Butterfly	LCM	27.31	AAA+0.92s to AAAA·+1.02s to Futures	2025-07-27	2025 RAFC Last Splash Invitational venue
100 Butterfly	LCM	1:01.80	AA+2.11s to AAA·Sectionals ✓+3.81s to Futures	2026-06-12	2026 CO CSI Long Course Open fast pool
200 Individual Medley	LCM	2:22.83	A+0.44s to AA·Sectionals ✓+10.04s to Futures	2025-07-27	2025 RAFC Last Splash Invitational venue
400 Individual Medley	LCM	5:16.68	A+10.99s to AA·+8.89s to Sectionals	2026-06-13	2026 CO CSI Long Course Open fast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.

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

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	LCM	26.96	flat	200 Free Relay	2025-07-25	2025 RAFC Last Splash Invitational
100 Freestyle	LCM	1:00.21	flying	400 Free Relay (leg 2)	2024-07-25	2024 RAFC Last Splash Invitational
50 Butterfly	LCM	27.24	flying	200 Medley Relay (leg 3)	2025-07-27	2025 RAFC Last Splash Invitational
100 Butterfly	LCM	1:03.06	flying	400 Medley Relay (leg 3)	2025-07-25	2025 RAFC Last Splash Invitational

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 17-18 · SCY

3653 points (6/6 events)

Event	Time	Points
500 FR SCY	4:59.06	755
200 BK SCY	2:08.26	595
200 BR SCY	2:52.84	349
200 FL SCY	2:19.42	488
200 IM SCY	2:02.11	742
400 IM SCY	4:24.97	724

IMR 17-18 · SCY

3415 points (5/5 events)

Event	Time	Points
200 FR SCY	1:48.19	794
100 BK SCY	56.16	659
100 BR SCY	1:13.42	443
100 FL SCY	53.38	777
200 IM SCY	2:02.11	742

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

PR splits

200 Freestyle SCY 1:48.19

24.56

27.08

28.01

28.54

Front half 51.64s · back half 56.55s

500 Freestyle SCY 4:59.06

26.66

28.87

29.86

30.90

31.08

30.28

30.39

30.46

30.51

30.05

Front half 147.37s · back half 151.69s

100 Backstroke SCY 56.16

27.47

28.69

Front half 27.47s · back half 28.69s

200 Backstroke SCY 2:08.26

29.13

32.16

33.28

33.69

Front half 61.29s · back half 66.97s

100 Breaststroke SCY 1:13.42

35.25

38.17

Front half 35.25s · back half 38.17s

200 Breaststroke SCY 2:52.84

39.11

43.43

45.99

44.31

Front half 82.54s · back half 90.30s

200 Butterfly SCY 2:19.42

24.18

29.51

44.55

41.18

Front half 53.69s · back half 85.73s

100 Individual Medley SCY 1:20.31

34.52

45.79

Front half 34.52s · back half 45.79s

200 Individual Medley SCY 2:02.11

24.65

31.09

37.31

29.06

Front half 55.74s · back half 66.37s

400 Individual Medley SCY 4:24.97

25.87

30.34

34.96

34.68

39.38

40.15

31.07

28.52

Front half 125.85s · back half 139.12s

100 Freestyle LCM 57.57

27.54

30.03

Front half 27.54s · back half 30.03s

200 Freestyle LCM 2:06.72

28.82

31.82

32.87

33.21

Front half 60.64s · back half 66.08s

400 Freestyle LCM 4:33.84

30.28

33.62

34.85

35.20

36.11

35.88

35.46

32.44

Front half 133.95s · back half 139.89s

100 Backstroke LCM 1:05.77

31.45

34.32

Front half 31.45s · back half 34.32s

200 Backstroke LCM 2:28.38

35.14

38.41

38.66

36.17

Front half 73.55s · back half 74.83s

100 Butterfly LCM 1:01.80

28.72

33.08

Front half 28.72s · back half 33.08s

200 Individual Medley LCM 2:22.83

30.31

36.34

42.64

33.54

Front half 66.65s · back half 76.18s

400 Individual Medley LCM 5:16.68

31.00

35.69

39.69

40.50

47.02

47.31

39.43

36.04

Front half 146.88s · back half 169.80s

Reaction time

fastest 0.71s average 0.727s slowest 0.75s 3 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 22.97 13 swims

100 Freestyle SCY 49.38 18 swims

200 Freestyle SCY 1:48.19 12 swims

500 Freestyle SCY 4:59.06 10 swims

1000 Freestyle SCY 11:41.57 1 swim

50 Backstroke SCY 36.43 5 swims

100 Backstroke SCY 56.16 14 swims

200 Backstroke SCY 2:08.26 9 swims

50 Breaststroke SCY 49.05 4 swims

100 Breaststroke SCY 1:13.42 6 swims

200 Breaststroke SCY 2:52.84 2 swims

50 Butterfly SCY 35.95 4 swims

100 Butterfly SCY 53.38 16 swims

200 Butterfly SCY 2:19.42 2 swims

100 Individual Medley SCY 1:20.31 3 swims

200 Individual Medley SCY 2:02.11 22 swims

400 Individual Medley SCY 4:24.97 5 swims

50 Freestyle LCM 26.71 7 swims

100 Freestyle LCM 57.57 11 swims

200 Freestyle LCM 2:06.72 9 swims

400 Freestyle LCM 4:33.84 9 swims

50 Backstroke LCM 31.02 3 swims

100 Backstroke LCM 1:05.77 9 swims

200 Backstroke LCM 2:28.38 2 swims

100 Breaststroke LCM 1:30.62 3 swims

50 Butterfly LCM 27.31 4 swims

100 Butterfly LCM 1:01.80 9 swims

200 Individual Medley LCM 2:22.83 10 swims

400 Individual Medley LCM 5:16.68 2 swims