Junseok Sung

Mage 12GASEDYNAHSA

55 plausible swims · 8 meets · 2025-01-17 → 2026-03-08

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 26.39 AA+0.60s to AAA·+4.10s to Sectionals 2026-03-07 Speedo Southern Premierfast pool
100 Freestyle SCY 1:09.76 B+3.37s to BB·+21.47s to Sectionals 2025-02-09 2025 SE BSL Region 3 Championshipsvenue
200 Freestyle SCY 2:35.60 B+10.71s to BB·+49.81s to Sectionals 2025-02-08 2025 SE BSL Region 3 Championshipsvenue
50 Backstroke SCY 32.27 A+1.08s to AA·+6.58s to Sectionals 2026-03-08 Speedo Southern Premierfast pool
100 Backstroke SCY 1:10.13 BB+0.84s to A·+15.04s to Sectionals 2026-03-06 Speedo Southern Premierfast pool
50 Breaststroke SCY 32.03 AAA+0.54s to AAAA·+2.54s to Sectionals 2026-03-06 Speedo Southern Premierfast pool
100 Breaststroke SCY 1:11.19 AAA+3.40s to AAAA·+8.50s to Sectionals 2026-03-08 Speedo Southern Premierfast pool
50 Butterfly SCY 38.73 +1.64s to B·+14.44s to Sectionals 2025-02-09 2025 SE BSL Region 3 Championshipsvenue
100 Butterfly SCY 1:20.04 B+3.95s to BB·+27.35s to Sectionals 2025-12-14 2025 Classic City Invitational Meetvenue
100 Individual Medley SCY 1:08.38 A+1.39s to AA 2026-03-07 Speedo Southern Premierfast pool
200 Individual Medley SCY 2:53.66 B+7.87s to BB·+54.27s to Sectionals 2025-01-17 2025 HSA TYR Invitationalvenue
50 Freestyle LCM 33.89 BB+1.80s to A·+8.30s to Sectionals 2025-07-19 2025 SE Southeastern Summer LC Championshipsfast pool
100 Freestyle LCM 1:16.30 B+0.11s to BB·+21.01s to Sectionals 2025-07-20 2025 SE Southeastern Summer LC Championshipsfast pool
200 Freestyle LCM 2:54.59 B+8.20s to BB·+53.70s to Sectionals 2025-05-17 2025 May Invitationalvenue
50 Breaststroke LCM 39.59 AA+1.50s to AAA·+5.40s to Sectionals 2025-07-19 2025 SE Southeastern Summer LC Championshipsfast pool
100 Breaststroke LCM 1:25.76 AA+2.67s to AAA·+13.37s to Sectionals 2025-07-18 2025 SE Southeastern Summer LC Championshipsfast pool
200 Individual Medley LCM 3:09.96 B+0.37s to BB·+52.27s to Sectionals 2025-05-18 2025 May Invitationalvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 27.16 flying 200 Free Relay (leg 3) 2026-03-07 Speedo Southern Premier
50 Breaststroke SCY 32.50 flying 200 Medley Relay (leg 2) 2026-03-08 Speedo Southern Premier
50 Breaststroke LCM 40.65 flying 200 Medley Relay (leg 2) 2025-07-19 2025 SE Southeastern Summer 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 11-12 · SCY

2315 points (4/5 events — incomplete)

EventTime Points
100 BK SCY 1:10.13 610
100 BR SCY 1:11.19 863
100 FL SCY 1:20.04 402
200 IM SCY 2:53.66 440
500 FR SCY 0

IMR 11-12 · SCY

3081 points (5/5 events)

EventTime Points
200 FR SCY 2:35.60 425
50 BK SCY 32.27 666
50 BR SCY 32.03 950
50 FL SCY 38.73 327
100 IM SCY 1:08.38 713

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

PR splits

100 Freestyle SCY 1:09.76

34.08
35.68

Front half 34.08s · back half 35.68s

200 Freestyle SCY 2:35.60

35.39
38.83
41.19
40.19

Front half 74.22s · back half 81.38s

100 Backstroke SCY 1:10.13 RT 0.75s

34.47
35.66

Front half 34.47s · back half 35.66s

100 Breaststroke SCY 1:11.19 RT 0.51s

33.59
37.60

Front half 33.59s · back half 37.60s

100 Butterfly SCY 1:20.04

36.92
43.12

Front half 36.92s · back half 43.12s

100 Individual Medley SCY 1:08.38 RT 0.66s

32.41
35.97

Front half 32.41s · back half 35.97s

200 Individual Medley SCY 2:53.66

38.03
46.41
48.50
40.72

Front half 84.44s · back half 89.22s

100 Freestyle LCM 1:16.30

34.74
41.56

Front half 34.74s · back half 41.56s

200 Freestyle LCM 2:54.59

38.24
44.54
45.66
46.15

Front half 82.78s · back half 91.81s

100 Breaststroke LCM 1:25.76

41.13
44.63

Front half 41.13s · back half 44.63s

200 Individual Medley LCM 3:09.96

44.25
51.25
49.78
44.68

Front half 95.50s · back half 94.46s

Reaction time

fastest 0.51s average 0.626s slowest 0.75s 10 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.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 26.39 8 swims
100 Freestyle SCY 1:09.76 2 swims
200 Freestyle SCY 2:35.60 2 swims
50 Backstroke SCY 32.27 4 swims
100 Backstroke SCY 1:10.13 3 swims
50 Breaststroke SCY 32.03 7 swims
100 Breaststroke SCY 1:11.19 7 swims
50 Butterfly SCY 38.73 1 swim
100 Butterfly SCY 1:20.04 3 swims
100 Individual Medley SCY 1:08.38 5 swims
200 Individual Medley SCY 2:53.66 1 swim
50 Freestyle LCM 33.89 2 swims
100 Freestyle LCM 1:16.30 2 swims
200 Freestyle LCM 2:54.59 1 swim
50 Breaststroke LCM 39.59 3 swims
100 Breaststroke LCM 1:25.76 3 swims
200 Individual Medley LCM 3:09.96 1 swim