John Duma

MEZPVVABCCNCAPRMSCTOLL

102 plausible swims · 18 meets · 2023-01-20 → 2026-05-30

Personal records

Event	Course	Best	Date	Meet
50 Freestyle	SCY	22.20	2025-12-13	2025 Riley Eaton Holiday Invitational venue
100 Freestyle	SCY	52.51	2026-03-08	2026 PV Short Course Open Championships venue
200 Freestyle	SCY	1:47.58	2026-03-06	2026 PV Short Course Open Championships venue
500 Freestyle	SCY	4:58.37	2026-01-16	2026 RMSC January Intrasquad Meet venue
1000 Freestyle	SCY	10:33.35	2023-10-27	NOVA Senior Classic venue
50 Backstroke	SCY	23.98	2025-12-12	2025 Riley Eaton Holiday Invitational venue
100 Backstroke	SCY	51.04	2025-12-13	2025 Riley Eaton Holiday Invitational venue
200 Backstroke	SCY	1:50.77	2025-12-14	2025 Riley Eaton Holiday Invitational venue
50 Breaststroke	SCY	30.34	2023-01-21	2023 ISCA National Club Championships venue
100 Breaststroke	SCY	1:03.70	2025-11-01	NOVA Senior Classic venue
200 Breaststroke	SCY	2:26.11	2023-01-22	2023 ISCA National Club Championships venue
100 Butterfly	SCY	53.50	2025-12-12	2025 Riley Eaton Holiday Invitational venue
100 Individual Medley	SCY	56.00	2024-03-23	2024 SwimRVA Shamrock Showdown venue
200 Individual Medley	SCY	1:59.13	2026-02-21	2026 MPSSAA_4A3AStateSwimChamps fast pool
400 Individual Medley	SCY	4:22.49	2024-03-22	2024 SwimRVA Shamrock Showdown venue
50 Freestyle	LCM	26.18	2026-05-29	Maryland State LC Championship venue
100 Freestyle	LCM	57.86	2025-05-15	2025 EZ LC Speedo Super Sectional venue
200 Freestyle	LCM	2:05.86	2025-05-16	2025 EZ LC Speedo Super Sectional venue
400 Freestyle	LCM	4:47.38	2024-05-18	2024 EZ LC Speedo Super Sectional venue
50 Backstroke	LCM	27.65	2026-05-29	Maryland State LC Championship venue
100 Backstroke	LCM	1:00.02	2025-05-17	2025 EZ LC Speedo Super Sectional venue
200 Backstroke	LCM	2:11.12	2025-05-18	2025 EZ LC Speedo Super Sectional venue
100 Breaststroke	LCM	1:19.05	2024-05-16	2024 EZ LC Speedo Super Sectional venue
100 Butterfly	LCM	1:01.35	2025-05-16	2025 EZ LC Speedo Super Sectional venue
200 Individual Medley	LCM	2:18.05	2025-05-15	2025 EZ LC Speedo Super Sectional venue
400 Individual Medley	LCM	5:11.08	2024-01-13	NOVA LC Winter Invitational venue

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	49.37	flat	400 Free Relay	2026-02-09	2026 METRO Championships
100 Freestyle	SCY	49.02	flying	400 Free Relay (leg 2)	2026-02-21	2026 MPSSAA_4A3AStateSwimChamps
50 Backstroke	SCY	24.29	flat	200 Medley Relay	2026-02-21	2026 MPSSAA_4A3AStateSwimChamps
100 Backstroke	SCY	58.34	flat	400 Medley Relay	2023-03-26	2023 EZ Southern Region Speedo Champ Series

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

100 Freestyle SCY 52.51

25.20

27.31

Front half 25.20s · back half 27.31s

200 Freestyle SCY 1:47.58

24.81

27.12

27.55

28.10

Front half 51.93s · back half 55.65s

500 Freestyle SCY 4:58.37

25.92

28.87

29.77

30.03

30.72

30.73

31.32

31.02

30.75

29.24

Front half 145.31s · back half 153.06s

1000 Freestyle SCY 10:33.35

28.16

30.78

31.52

31.57

31.78

32.38

31.84

32.35

32.67

32.55

32.40

32.36

31.98

32.47

31.91

31.78

31.74

31.95

31.09

30.07

Front half 315.60s · back half 317.75s

100 Backstroke SCY 51.04

24.91

26.13

Front half 24.91s · back half 26.13s

200 Backstroke SCY 1:50.77

26.33

27.81

28.46

28.17

Front half 54.14s · back half 56.63s

100 Breaststroke SCY 1:03.70

30.22

33.48

Front half 30.22s · back half 33.48s

200 Breaststroke SCY 2:26.11

32.33

36.93

38.53

38.32

Front half 69.26s · back half 76.85s

100 Butterfly SCY 53.50

25.70

27.80

Front half 25.70s · back half 27.80s

100 Individual Medley SCY 56.00

25.86

30.14

Front half 25.86s · back half 30.14s

200 Individual Medley SCY 1:59.13

26.25

28.96

36.11

27.81

Front half 55.21s · back half 63.92s

400 Individual Medley SCY 4:22.49

27.36

31.82

33.80

33.40

38.08

38.58

30.29

29.16

Front half 126.38s · back half 136.11s

200 Freestyle LCM 2:05.86

60.99

64.87

Front half 60.99s · back half 64.87s

400 Freestyle LCM 4:47.38

31.48

36.08

36.01

36.83

36.69

37.33

36.97

35.99

Front half 140.40s · back half 146.98s

200 Backstroke LCM 2:11.12 RT 0.58s

63.75

67.37

Front half 63.75s · back half 67.37s

100 Breaststroke LCM 1:19.05

37.44

41.61

Front half 37.44s · back half 41.61s

200 Individual Medley LCM 2:18.05

63.13

74.92

Front half 63.13s · back half 74.92s

400 Individual Medley LCM 5:11.08

32.15

37.14

40.26

38.94

45.39

45.70

36.37

35.13

Front half 148.49s · back half 162.59s

Reaction time

fastest 0.58s average 0.590s slowest 0.60s 2 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 22.20 5 swims

100 Freestyle SCY 52.51 2 swims

200 Freestyle SCY 1:47.58 5 swims

500 Freestyle SCY 4:58.37 2 swims

1000 Freestyle SCY 10:33.35 1 swim

50 Backstroke SCY 23.98 5 swims

100 Backstroke SCY 51.04 13 swims

200 Backstroke SCY 1:50.77 12 swims

50 Breaststroke SCY 30.34 1 swim

100 Breaststroke SCY 1:03.70 2 swims

200 Breaststroke SCY 2:26.11 1 swim

100 Butterfly SCY 53.50 4 swims

100 Individual Medley SCY 56.00 2 swims

200 Individual Medley SCY 1:59.13 8 swims

400 Individual Medley SCY 4:22.49 1 swim

50 Freestyle LCM 26.18 4 swims

100 Freestyle LCM 57.86 2 swims

200 Freestyle LCM 2:05.86 4 swims

400 Freestyle LCM 4:47.38 2 swims

50 Backstroke LCM 27.65 2 swims

100 Backstroke LCM 1:00.02 8 swims

200 Backstroke LCM 2:11.12 6 swims

100 Breaststroke LCM 1:19.05 2 swims

100 Butterfly LCM 1:01.35 1 swim

200 Individual Medley LCM 2:18.05 4 swims

400 Individual Medley LCM 5:11.08 3 swims