Jordan Ko

Mage 15CZGUILMTWIGSCILNTA

80 plausible swims · 11 meets · 2024-01-20 → 2026-03-08

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	21.24	AAAA	2026-03-07	2026 SC Illinois Senior Championships - copi venue
100 Freestyle	SCY	47.28	AAAA	2026-03-08	2026 SC Illinois Senior Championships - copi venue
200 Freestyle	SCY	1:52.67	AA+3.98s to AAA	2024-03-08	2024 IL Swimming SC Age Group Championships slow pool
100 Backstroke	SCY	54.53	AAA+2.44s to AAAA	2026-03-07	2026 SC Illinois Senior Championships - copi venue
200 Backstroke	SCY	2:08.35	A+3.66s to AA	2024-01-20	2024 MMSC Winter Invite slow pool
50 Breaststroke	SCY	26.02	AAAA	2026-03-08	2026 SC Illinois Senior Championships - copi venue
100 Breaststroke	SCY	57.70	AAAA	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
200 Breaststroke	SCY	2:07.95	AAAA	2025-03-15	2025 ISI Winter 11-14 Age Group Championships venue
50 Butterfly	SCY	22.78	AAAA	2026-03-07	2026 SC Illinois Senior Championships - copi venue
100 Butterfly	SCY	51.42	AAAA	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
200 Individual Medley	SCY	1:53.78	AAAA	2025-03-15	2025 ISI Winter 11-14 Age Group Championships venue
50 Freestyle	LCM	25.83	AAA+0.84s to AAAA	2024-06-02	2024 LSC Duel in the Pool venue
100 Freestyle	LCM	54.20	AAAA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
200 Freestyle	LCM	2:06.04	AA+0.25s to AAA	2024-07-20	2024 IL Swimming LC Age Group Championships venue
100 Backstroke	LCM	1:08.39	A+1.70s to AA	2024-05-12	Blue Devil Swim Club May Mania venue
200 Backstroke	LCM	2:33.18	BB+2.09s to A	2024-05-11	Blue Devil Swim Club May Mania venue
50 Breaststroke	LCM	30.76	AAAA	2025-07-26	Illinois Swimming Age Group Champs LC 25 venue
100 Breaststroke	LCM	1:07.17	AAAA	2025-07-25	Illinois Swimming Age Group Champs LC 25 venue
200 Breaststroke	LCM	2:27.20	AAAA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
50 Butterfly	LCM	26.47	AAAA	2025-07-25	Illinois Swimming Age Group Champs LC 25 venue
100 Butterfly	LCM	59.06	AAA+0.17s to AAAA	2025-07-26	Illinois Swimming Age Group Champs LC 25 venue
200 Individual Medley	LCM	2:11.06	AAAA	2025-07-27	Illinois Swimming Age Group Champs LC 25 venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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
100 Freestyle	SCY	49.34	flying	400 Free Relay (leg 2)	2024-03-10	2024 IL Swimming SC Age Group Championships
50 Butterfly	SCY	22.41	flying	200 Medley Relay (leg 3)	2026-03-08	2026 SC Illinois Senior Championships - copi

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

2595 points (3/6 events — incomplete)

Event	Time	Points
200 BK LCM	2:33.18	599
200 BR LCM	2:27.20	973
200 IM LCM	2:11.06	1023
400 FR LCM	—	0
200 FL LCM	—	0
400 IM LCM	—	0

IMR 15-16 · SCY

4468 points (5/5 events)

Event	Time	Points
200 FR SCY	1:52.67	741
100 BK SCY	54.53	803
100 BR SCY	57.70	999
100 FL SCY	51.42	941
200 IM SCY	1:53.78	984

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

PR splits

100 Freestyle SCY 47.28

23.19

24.09

Front half 23.19s · back half 24.09s

200 Freestyle SCY 1:52.67

25.37

28.81

30.00

28.49

Front half 54.18s · back half 58.49s

100 Backstroke SCY 54.53

26.46

28.07

Front half 26.46s · back half 28.07s

100 Breaststroke SCY 57.70 RT 0.68s

27.33

30.37

Front half 27.33s · back half 30.37s

200 Breaststroke SCY 2:07.95 RT 0.72s

28.52

32.00

33.87

33.56

Front half 60.52s · back half 67.43s

100 Butterfly SCY 51.42 RT 0.69s

24.07

27.35

Front half 24.07s · back half 27.35s

200 Individual Medley SCY 1:53.78 RT 0.72s

24.76

28.53

32.29

28.20

Front half 53.29s · back half 60.49s

100 Freestyle LCM 54.20 RT 0.69s

25.99

28.21

Front half 25.99s · back half 28.21s

200 Freestyle LCM 2:06.04

29.11

31.86

32.84

32.23

Front half 60.97s · back half 65.07s

200 Backstroke LCM 2:33.18

75.03

78.15

Front half 75.03s · back half 78.15s

100 Breaststroke LCM 1:07.17 RT 0.65s

31.43

35.74

Front half 31.43s · back half 35.74s

200 Breaststroke LCM 2:27.20 RT 0.67s

33.37

37.20

38.42

38.21

Front half 70.57s · back half 76.63s

100 Butterfly LCM 59.06 RT 0.71s

27.36

31.70

Front half 27.36s · back half 31.70s

200 Individual Medley LCM 2:11.06 RT 0.72s

28.02

34.24

36.68

32.12

Front half 62.26s · back half 68.80s

Reaction time

fastest 0.65s average 0.696s slowest 0.77s 32 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 21.24 4 swims

100 Freestyle SCY 47.28 6 swims

200 Freestyle SCY 1:52.67 1 swim

100 Backstroke SCY 54.53 2 swims

200 Backstroke SCY 2:08.35 1 swim

50 Breaststroke SCY 26.02 4 swims

100 Breaststroke SCY 57.70 5 swims

200 Breaststroke SCY 2:07.95 4 swims

50 Butterfly SCY 22.78 4 swims

100 Butterfly SCY 51.42 3 swims

200 Individual Medley SCY 1:53.78 2 swims

50 Freestyle LCM 25.83 4 swims

100 Freestyle LCM 54.20 6 swims

200 Freestyle LCM 2:06.04 3 swims

100 Backstroke LCM 1:08.39 1 swim

200 Backstroke LCM 2:33.18 1 swim

50 Breaststroke LCM 30.76 2 swims

100 Breaststroke LCM 1:07.17 8 swims

200 Breaststroke LCM 2:27.20 7 swims

50 Butterfly LCM 26.47 2 swims

100 Butterfly LCM 59.06 4 swims

200 Individual Medley LCM 2:11.06 6 swims