Justin Ma

Mage 17MNMFLY

100 plausible swims · 21 meets · 2024-03-01 → 2026-03-14

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	21.67	AAA+0.58s to AAAA	2026-03-14	2026 MN AQJT Senior SC State Championship venue
100 Freestyle	SCY	47.16	AAA+1.07s to AAAA	2026-03-14	2026 MN AQJT Senior SC State Championship venue
200 Freestyle	SCY	1:41.95	AAA+0.46s to AAAA	2026-03-13	2026 MN AQJT Senior SC State Championship venue
500 Freestyle	SCY	4:56.53	AA+7.94s to AAA	2026-02-27	2026 MN RSC Minnesota Regional Championship - fast pool
1000 Freestyle	SCY	10:44.92	A+12.93s to AA	2024-03-03	2024 MN MTKA Minnesota Regional Championship venue
50 Backstroke	SCY	25.11	AA+0.52s to AAA	2026-03-13	2026 MN AQJT Senior SC State Championship venue
100 Backstroke	SCY	53.03	AA+0.54s to AAA	2026-03-14	2026 MN AQJT Senior SC State Championship venue
200 Backstroke	SCY	1:55.28	AA+0.49s to AAA	2026-03-14	2026 MN AQJT Senior SC State Championship venue
50 Breaststroke	SCY	30.77	A+1.18s to AA	2025-11-02	2025 MN NOR Champ. Belt Sprint Spec. (Fall) venue
100 Breaststroke	SCY	1:06.89	BB+2.20s to A	2026-02-27	2026 MN RSC Minnesota Regional Championship - fast pool
200 Breaststroke	SCY	2:25.71	BB+4.92s to A	2026-02-28	2026 MN RSC Minnesota Regional Championship - fast pool
50 Butterfly	SCY	24.71	AA+0.22s to AAA	2025-11-02	2025 MN NOR Champ. Belt Sprint Spec. (Fall) venue
100 Butterfly	SCY	56.02	A+1.73s to AA	2025-11-01	2025 MN NOR Champ. Belt Sprint Spec. (Fall) venue
100 Individual Medley	SCY	56.40		2026-02-14	2026 MN STRM Winter Storm Warning Invite venue
200 Individual Medley	SCY	2:10.43	BB+2.24s to A	2024-03-03	2024 MN MTKA Minnesota Regional Championship venue
400 Individual Medley	SCY	4:31.78	A+7.29s to AA	2026-02-27	2026 MN RSC Minnesota Regional Championship - fast pool
50 Freestyle	LCM	25.64	AA+0.15s to AAA	2025-08-02	2025 ND DRGN MN Senior LC State Championship venue
100 Freestyle	LCM	55.15	AAA+2.16s to AAAA	2025-08-03	2025 ND DRGN MN Senior LC State Championship venue
200 Freestyle	LCM	2:00.28	AAA+3.69s to AAAA	2025-08-01	2025 ND DRGN MN Senior LC State Championship venue
400 Freestyle	LCM	4:33.15	A+0.76s to AA	2025-05-16	2025 MN STRM Spring Startup venue
50 Backstroke	LCM	29.40	AA+0.01s to AAA	2025-05-18	2025 MN STRM Spring Startup venue
100 Backstroke	LCM	1:03.83	AA+1.94s to AAA	2025-08-02	2025 ND DRGN MN Senior LC State Championship venue
200 Backstroke	LCM	2:19.52	AA+4.73s to AAA	2025-08-03	2025 ND DRGN MN Senior LC State Championship venue

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

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	SCY	21.67	flat	200 Free Relay	2026-03-13	2026 MN AQJT Senior SC State Championship
50 Freestyle	SCY	21.24	flying	200 Medley Relay (leg 4)	2026-03-12	2026 MN AQJT Senior SC State Championship
100 Freestyle	SCY	47.38	flying	400 Free Relay (leg 4)	2026-03-14	2026 MN AQJT Senior SC State Championship
200 Freestyle	SCY	1:44.03	flat	800 Free Relay	2026-03-12	2026 MN AQJT Senior SC State Championship
50 Backstroke	SCY	26.39	flat	200 Medley Relay	2024-10-06	2024 MN RFSC Fall Invitational
100 Backstroke	SCY	53.13	flat	400 Medley Relay	2026-03-14	2026 MN AQJT Senior SC State Championship
50 Butterfly	SCY	24.46	flying	200 Medley Relay (leg 3)	2025-03-08	2025 MN EDI Minnesota Regional Championship
50 Freestyle	LCM	25.11	flying	200 Free Relay (leg 4)	2025-08-01	2025 ND DRGN MN Senior LC State Championship
100 Freestyle	LCM	54.80	flying	400 Free Relay (leg 4)	2025-08-03	2025 ND DRGN MN Senior LC State Championship
200 Freestyle	LCM	2:03.33	flying	800 Free Relay (leg 4)	2025-07-31	2025 ND DRGN MN Senior LC State Championship

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

3456 points (5/6 events — incomplete)

Event	Time	Points
500 FR SCY	4:56.53	775
200 BK SCY	1:55.28	819
200 BR SCY	2:25.71	582
200 IM SCY	2:10.43	609
400 IM SCY	4:31.78	671
200 FL SCY	—	0

IMR 17-18 · SCY

3599 points (5/5 events)

Event	Time	Points
200 FR SCY	1:41.95	949
100 BK SCY	53.03	783
100 BR SCY	1:06.89	586
100 FL SCY	56.02	672
200 IM SCY	2:10.43	609

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

PR splits

100 Freestyle SCY 47.16

22.95

24.21

Front half 22.95s · back half 24.21s

200 Freestyle SCY 1:41.95 RT 0.69s

23.37

26.15

26.82

25.61

Front half 49.52s · back half 52.43s

500 Freestyle SCY 4:56.53

25.10

28.42

28.82

29.96

30.69

31.65

30.70

30.57

31.54

29.08

Front half 142.99s · back half 153.54s

1000 Freestyle SCY 10:44.92

27.29

29.73

30.49

31.42

32.09

32.60

32.62

32.82

32.29

32.86

32.25

33.31

33.08

32.86

33.19

33.63

33.51

34.04

32.82

32.02

Front half 314.21s · back half 330.71s

100 Backstroke SCY 53.03 RT 0.92s

25.44

27.59

Front half 25.44s · back half 27.59s

200 Backstroke SCY 1:55.28 RT 0.60s

25.86

29.10

30.34

29.98

Front half 54.96s · back half 60.32s

100 Breaststroke SCY 1:06.89

30.86

36.03

Front half 30.86s · back half 36.03s

200 Breaststroke SCY 2:25.71

30.98

36.26

38.66

39.81

Front half 67.24s · back half 78.47s

100 Individual Medley SCY 56.40

25.12

31.28

Front half 25.12s · back half 31.28s

200 Individual Medley SCY 2:10.43

26.40

31.98

40.39

31.66

Front half 58.38s · back half 72.05s

400 Individual Medley SCY 4:31.78

27.03

30.62

35.18

32.63

42.66

40.56

32.35

30.75

Front half 125.46s · back half 146.32s

100 Freestyle LCM 55.15

26.85

28.30

Front half 26.85s · back half 28.30s

200 Freestyle LCM 2:00.28

27.28

30.34

32.14

30.52

Front half 57.62s · back half 62.66s

400 Freestyle LCM 4:33.15

29.99

33.35

34.48

34.72

35.82

35.66

35.08

34.05

Front half 132.54s · back half 140.61s

100 Backstroke LCM 1:03.83

30.64

33.19

Front half 30.64s · back half 33.19s

200 Backstroke LCM 2:19.52

31.39

34.93

36.70

36.50

Front half 66.32s · back half 73.20s

Reaction time

fastest 0.59s average 0.714s slowest 0.94s 8 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 21.67 9 swims

100 Freestyle SCY 47.16 9 swims

200 Freestyle SCY 1:41.95 13 swims

500 Freestyle SCY 4:56.53 4 swims

1000 Freestyle SCY 10:44.92 2 swims

50 Backstroke SCY 25.11 4 swims

100 Backstroke SCY 53.03 8 swims

200 Backstroke SCY 1:55.28 7 swims

50 Breaststroke SCY 30.77 1 swim

100 Breaststroke SCY 1:06.89 3 swims

200 Breaststroke SCY 2:25.71 3 swims

50 Butterfly SCY 24.71 1 swim

100 Butterfly SCY 56.02 3 swims

100 Individual Medley SCY 56.40 5 swims

200 Individual Medley SCY 2:10.43 2 swims

400 Individual Medley SCY 4:31.78 2 swims

50 Freestyle LCM 25.64 3 swims

100 Freestyle LCM 55.15 5 swims

200 Freestyle LCM 2:00.28 4 swims

400 Freestyle LCM 4:33.15 2 swims

50 Backstroke LCM 29.40 3 swims

100 Backstroke LCM 1:03.83 3 swims

200 Backstroke LCM 2:19.52 4 swims