swimstats

Marvin Johnson

MFGFLGASEFLORMCC

55 plausible swims · 12 meets · 2021-11-05 → 2026-05-16

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 19.55 2025-01-01 SA- Best of the South
100 Freestyle SCY 44.91 2025-01-01 SA- Best of the South
200 Freestyle SCY 1:38.76 2024-11-16 Tennessee Aquatics Fall Classic venue
500 Freestyle SCY 4:38.62 2024-11-15 Tennessee Aquatics Fall Classic venue
100 Backstroke SCY 52.54 2026-01-01 mcc january meet results
200 Backstroke SCY 1:58.75 2026-01-01 mcc january meet results
100 Breaststroke SCY 1:02.82 2024-09-21 2024 Fall Kickoff Classic Meet venue
100 Butterfly SCY 48.88 2025-01-01 SA- Best of the South
200 Individual Medley SCY 1:52.88 2024-11-16 Tennessee Aquatics Fall Classic venue
50 Freestyle LCM 23.41 2026-05-02 Fort Lauderdale Open venue
100 Freestyle LCM 52.10 2026-04-30 Fort Lauderdale Open venue
200 Freestyle LCM 2:05.32 2025-05-02 2025 ARENA Long Course
400 Freestyle LCM 4:20.02 2026-05-16 2026 FAST May Invite fast pool
100 Backstroke LCM 1:02.31 2022-04-22 2022 SE ARENA Long Course InvitationalMeet
50 Breaststroke LCM 31.40 2026-05-16 2026 FAST May Invite fast pool
100 Breaststroke LCM 1:13.56 2022-04-22 2022 SE ARENA Long Course InvitationalMeet
50 Butterfly LCM 25.78 2026-05-01 Fort Lauderdale Open venue
100 Butterfly LCM 57.32 2026-05-16 2026 FAST May Invite fast pool

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.

PR splits

100 Freestyle SCY 44.91 split/total mismatch

22.16
2.54

Front half 22.16s · back half 22.75s

200 Freestyle SCY 1:38.76

23.45
25.15
25.51
24.65

Front half 48.60s · back half 50.16s

500 Freestyle SCY 4:38.62

25.50
28.09
28.24
28.18
28.46
28.32
28.48
28.43
28.19
26.73

Front half 138.47s · back half 140.15s

100 Backstroke SCY 52.54 split/total mismatch

25.97
0.60

Front half 25.97s · back half 26.57s

100 Breaststroke SCY 1:02.82

29.47
33.35

Front half 29.47s · back half 33.35s

100 Butterfly SCY 48.88 split/total mismatch

22.73
3.42

Front half 22.73s · back half 26.15s

200 Individual Medley SCY 1:52.88

24.06
29.24
33.62
25.96

Front half 53.30s · back half 59.58s

100 Freestyle LCM 52.10 RT 0.57s

24.68
27.42

Front half 24.68s · back half 27.42s

400 Freestyle LCM 4:20.02

28.64
30.90
33.49
34.10
34.17
34.64
33.50
30.58

Front half 127.13s · back half 132.89s

100 Butterfly LCM 57.32

26.89
30.43

Front half 26.89s · back half 30.43s

Reaction time

fastest 0.57s average 0.585s slowest 0.60s 4 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 19.55 7 swims
100 Freestyle SCY 44.91 5 swims
200 Freestyle SCY 1:38.76 6 swims
500 Freestyle SCY 4:38.62 2 swims
100 Backstroke SCY 52.54 4 swims
200 Backstroke SCY 1:58.75 1 swim
100 Breaststroke SCY 1:02.82 3 swims
100 Butterfly SCY 48.88 7 swims
200 Individual Medley SCY 1:52.88 6 swims
50 Freestyle LCM 23.41 3 swims
100 Freestyle LCM 52.10 2 swims
200 Freestyle LCM 2:05.32 2 swims
400 Freestyle LCM 4:20.02 1 swim
100 Backstroke LCM 1:02.31 1 swim
50 Breaststroke LCM 31.40 1 swim
100 Breaststroke LCM 1:13.56 1 swim
50 Butterfly LCM 25.78 1 swim
100 Butterfly LCM 57.32 2 swims