Justin Roberts

Mage 16EZMAMDVANBAC

539 plausible swims · 48 meets · 2021-07-09 → 2026-06-11

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.88	AA+0.49s to AAA	2024-03-02	2024 MD LSC 14 & U Championships venue
100 Freestyle	SCY	48.24	AAA+1.45s to AAAA	2026-02-22	2026 Speedo MD LSC Senior Champs venue
200 Freestyle	SCY	1:48.42	AA+1.33s to AAA	2025-11-15	2025 NBAC Thanksgiving Meet fast pool
500 Freestyle	SCY	4:57.47	AA+6.38s to AAA	2025-11-14	2025 NBAC Thanksgiving Meet fast pool
1000 Freestyle	SCY	10:49.37	A+15.38s to AA		2025 NBAC Thanksgiving Meet fast pool
1650 Freestyle	SCY	17:46.35	A+9.46s to AA	2025-11-15	2025 NBAC Thanksgiving Meet fast pool
50 Backstroke	SCY	25.53	AA+0.54s to AAA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
100 Backstroke	SCY	53.35	AA+0.06s to AAA	2026-02-21	2026 Speedo MD LSC Senior Champs venue
200 Backstroke	SCY	2:00.45	AA+3.76s to AAA	2025-11-15	2025 NBAC Thanksgiving Meet fast pool
50 Breaststroke	SCY	27.29	AAAA	2026-01-18	ISCA January Classic 2026 venue
100 Breaststroke	SCY	58.00	AAA+0.21s to AAAA	2026-01-16	ISCA January Classic 2026 venue
200 Breaststroke	SCY	2:10.47	AAA+5.18s to AAAA	2025-12-13	2025 NBAC 51st Annual Christmas Invitational venue
50 Butterfly	SCY	24.25	AAA+0.46s to AAAA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
100 Butterfly	SCY	52.84	AAA+2.35s to AAAA	2026-02-20	2026 Speedo MD LSC Senior Champs venue
200 Butterfly	SCY	2:02.95	AA+4.56s to AAA	2025-11-16	2025 NBAC Thanksgiving Meet fast pool
100 Individual Medley	SCY	54.23		2026-02-19	2026 Speedo MD LSC Senior Champs venue
200 Individual Medley	SCY	1:55.54	AAA+2.05s to AAAA	2026-01-17	ISCA January Classic 2026 venue
400 Individual Medley	SCY	4:11.72	AAA+8.73s to AAAA	2026-01-16	ISCA January Classic 2026 venue
50 Freestyle	LCM	26.04	AA+0.15s to AAA	2026-05-09	2026 NBAC Spring LC Invitational Meet venue
100 Freestyle	LCM	56.66	AA+0.17s to AAA	2026-06-08	Chargers Mid Season Long Course Invitational
200 Freestyle	LCM	2:05.40	AA+1.81s to AAA	2026-05-09	2026 NBAC Spring LC Invitational Meet venue
400 Freestyle	LCM	4:35.54	AA+11.85s to AAA	2023-04-29	2023 NAAC Carol Chidester Invite venue
800 Freestyle	LCM	10:07.25	BB+11.06s to A		2023 NBAC Mid-Summer Classic venue
1500 Freestyle	LCM	19:10.01	BB+2.82s to A	2023-07-09	2023 NBAC Mid-Summer Classic venue
50 Backstroke	LCM	29.86	AA+0.07s to AAA	2025-07-30	2025 MD LSC LC Championships venue
100 Backstroke	LCM	1:04.44	AA+1.95s to AAA	2025-08-01	2025 MD LSC LC Championships venue
200 Backstroke	LCM	2:24.32	A+2.83s to AA	2026-06-08	Chargers Mid Season Long Course Invitational
50 Breaststroke	LCM	31.69	AAA+0.20s to AAAA	2026-03-29	2026 Speedo Sectional Championship venue
100 Breaststroke	LCM	1:09.12	AAA+1.73s to AAAA	2026-05-09	2026 NBAC Spring LC Invitational Meet venue
200 Breaststroke	LCM	2:35.69	AA+2.20s to AAA	2026-03-28	2026 Speedo Sectional Championship venue
50 Butterfly	LCM	28.24	AA+0.05s to AAA	2025-05-16	2025 NBAC Spring LC Invitational Meet venue
100 Butterfly	LCM	1:01.56	AA+1.07s to AAA	2025-07-11	2025 NBAC Mid Summer Classic venue
200 Butterfly	LCM	2:24.56	A+2.97s to AA	2024-07-07	2024 NBAC Mid Summer Classic venue
200 Individual Medley	LCM	2:14.43	AAA+2.04s to AAAA	2025-08-02	2025 MD LSC LC Championships venue
400 Individual Medley	LCM	4:55.06	AAA+12.97s to AAAA	2026-06-08	Chargers Mid Season Long Course Invitational

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

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	24.35	flat	200 Free Relay	2022-03-05	2022 MD LSC 14 & U CHAMPIONSHIPS
50 Freestyle	SCY	22.66	flying	200 Medley Relay (leg 4)	2024-02-29	2024 MD LSC 14 & U Championships
50 Freestyle	SCY	22.60	flying	200 Free Relay (leg 3)	2024-03-01	2024 MD LSC 14 & U Championships
100 Freestyle	SCY	53.76	flat	400 Free Relay	2022-03-06	2022 MD LSC 14 & U CHAMPIONSHIPS
100 Freestyle	SCY	49.44	flying	400 Free Relay (leg 2)	2024-03-03	2024 MD LSC 14 & U Championships
100 Freestyle	SCY	50.48	flying	400 Medley Relay (leg 4)	2023-03-04	2023 MD LSC 14 & U Championships
200 Freestyle	SCY	1:50.41	flying	800 Free Relay (leg 2)	2023-03-02	2023 MD LSC 14 & U Championships
100 Breaststroke	SCY	1:07.05	flying	400 Medley Relay (leg 2)	2022-03-04	2022 MD LSC 14 & U CHAMPIONSHIPS
50 Butterfly	SCY	26.09	flying	200 Medley Relay (leg 3)	2022-03-03	2022 MD LSC 14 & U CHAMPIONSHIPS
50 Freestyle	LCM	24.45	flying	200 Free Relay (leg 4)	2025-03-30	2025 Speedo Sectional Championship
100 Freestyle	LCM	56.61	flying	400 Free Relay (leg 3)	2025-07-31	2025 MD LSC LC Championships

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 · SCY

5055 points (6/6 events)

Event	Time	Points
500 FR SCY	4:57.47	801
200 BK SCY	2:00.45	776
200 BR SCY	2:10.47	885
200 FL SCY	2:02.95	769
200 IM SCY	1:55.54	940
400 IM SCY	4:11.72	884

IMR 15-16 · SCY

4480 points (5/5 events)

Event	Time	Points
200 FR SCY	1:48.42	832
100 BK SCY	53.35	857
100 BR SCY	58.00	984
100 FL SCY	52.84	867
200 IM SCY	1:55.54	940

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

PR splits

100 Freestyle SCY 48.24

23.42

24.82

Front half 23.42s · back half 24.82s

200 Freestyle SCY 1:48.42

25.53

27.53

27.82

27.54

Front half 53.06s · back half 55.36s

500 Freestyle SCY 4:57.47

26.52

29.18

29.80

30.25

30.49

30.79

30.50

30.54

30.34

29.06

Front half 146.24s · back half 151.23s

1650 Freestyle SCY 17:46.35

29.63

32.14

32.25

32.42

32.48

32.81

33.19

32.52

32.76

32.75

32.76

32.71

32.66

32.65

32.84

32.59

32.64

32.63

32.46

32.48

32.25

32.28

32.21

32.45

32.69

32.62

32.37

32.62

32.69

32.37

31.42

28.64

100 Backstroke SCY 53.35

25.63

27.72

Front half 25.63s · back half 27.72s

200 Backstroke SCY 2:00.45

29.21

30.29

30.84

30.11

Front half 59.50s · back half 60.95s

100 Breaststroke SCY 58.00

27.14

30.86

Front half 27.14s · back half 30.86s

200 Breaststroke SCY 2:10.47

29.66

33.17

33.95

33.69

Front half 62.83s · back half 67.64s

100 Butterfly SCY 52.84

24.71

28.13

Front half 24.71s · back half 28.13s

200 Butterfly SCY 2:02.95

27.51

30.11

31.82

33.51

Front half 57.62s · back half 65.33s

100 Individual Medley SCY 54.23

24.56

29.67

Front half 24.56s · back half 29.67s

200 Individual Medley SCY 1:55.54

25.28

29.54

33.33

27.39

Front half 54.82s · back half 60.72s

400 Individual Medley SCY 4:11.72

26.95

30.36

32.52

31.98

35.03

36.21

29.69

28.98

Front half 121.81s · back half 129.91s

100 Freestyle LCM 56.66 split/total mismatch

27.47

1.72

Front half 27.47s · back half 29.19s

200 Freestyle LCM 2:05.40

29.18

31.39

32.76

32.07

Front half 60.57s · back half 64.83s

400 Freestyle LCM 4:35.54

31.71

34.35

35.09

34.84

35.54

35.41

35.26

33.34

Front half 135.99s · back half 139.55s

1500 Freestyle LCM 19:10.01

32.39

35.91

37.58

37.85

38.33

38.42

38.08

38.66

38.72

38.61

38.32

38.91

38.97

38.86

38.56

39.08

38.44

38.64

38.80

38.73

38.62

39.51

39.69

40.20

39.51

39.39

39.26

38.95

37.53

35.49

Front half 568.17s · back half 581.84s

100 Backstroke LCM 1:04.44

31.60

32.84

Front half 31.60s · back half 32.84s

200 Backstroke LCM 2:24.32 split/total mismatch

33.52

36.64

37.08

100 Breaststroke LCM 1:09.12

32.00

37.12

Front half 32.00s · back half 37.12s

200 Breaststroke LCM 2:35.69

34.23

38.60

41.46

41.40

Front half 72.83s · back half 82.86s

100 Butterfly LCM 1:01.56

28.79

32.77

Front half 28.79s · back half 32.77s

200 Butterfly LCM 2:24.56

31.93

36.15

37.79

38.69

Front half 68.08s · back half 76.48s

200 Individual Medley LCM 2:14.43

28.53

33.91

39.44

32.55

Front half 62.44s · back half 71.99s

400 Individual Medley LCM 4:55.06 split/total mismatch

30.07

34.57

39.03

38.54

41.80

42.56

34.90

33.59

Reaction time

fastest 0.67s average 1.023s slowest 1.73s 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 22.88 21 swims

100 Freestyle SCY 48.24 24 swims

200 Freestyle SCY 1:48.42 17 swims

500 Freestyle SCY 4:57.47 4 swims

1000 Freestyle SCY 10:49.37 0 swims

1650 Freestyle SCY 17:46.35 2 swims

50 Backstroke SCY 25.53 16 swims

100 Backstroke SCY 53.35 17 swims

200 Backstroke SCY 2:00.45 3 swims

50 Breaststroke SCY 27.29 25 swims

100 Breaststroke SCY 58.00 30 swims

200 Breaststroke SCY 2:10.47 17 swims

50 Butterfly SCY 24.25 20 swims

100 Butterfly SCY 52.84 26 swims

200 Butterfly SCY 2:02.95 10 swims

100 Individual Medley SCY 54.23 11 swims

200 Individual Medley SCY 1:55.54 21 swims

400 Individual Medley SCY 4:11.72 6 swims

50 Freestyle LCM 26.04 23 swims

100 Freestyle LCM 56.66 29 swims

200 Freestyle LCM 2:05.40 14 swims

400 Freestyle LCM 4:35.54 5 swims

800 Freestyle LCM 10:07.25 0 swims

1500 Freestyle LCM 19:10.01 1 swim

50 Backstroke LCM 29.86 13 swims

100 Backstroke LCM 1:04.44 18 swims

200 Backstroke LCM 2:24.32 10 swims

50 Breaststroke LCM 31.69 18 swims

100 Breaststroke LCM 1:09.12 39 swims

200 Breaststroke LCM 2:35.69 14 swims

50 Butterfly LCM 28.24 13 swims

100 Butterfly LCM 1:01.56 21 swims

200 Butterfly LCM 2:24.56 3 swims

200 Individual Medley LCM 2:14.43 33 swims

400 Individual Medley LCM 4:55.06 9 swims