Derek Dong

Mage 17MTPCSISTSBA

30 plausible swims · 6 meets · 2026-01-01 → 2026-08-06

Personal records

EventCourseBest CutDateMeet
50 Backstroke SCY 25.55 AA+0.96s to AAA·+1.86s to Futures 2026-07-12 2026 SI SBA All Ages Last Chance Meetvenue
50 Breaststroke SCY 25.78 AAAA·Futures ✓+0.49s to Jr Nationals 2026-07-11 2026 SI SBA All Ages Last Chance Meetvenue
100 Breaststroke SCY 56.33 AAAA·Futures ✓+0.84s to Winter JNs 2026-07-12 2026 SI SBA All Ages Last Chance Meetvenue
200 Breaststroke SCY 2:04.62 AAA+1.43s to AAAA·Futures ✓+3.03s to Winter JNs 2026-07-11 2026 SI SBA All Ages Last Chance Meetvenue
50 Freestyle LCM 25.31 AAA+0.92s to AAAA·Sectionals ✓+0.72s to Futures 2026-06-20 2026 SI Splash and Dashfast pool
100 Freestyle LCM 55.73 AA+0.14s to AAA·Sectionals ✓+2.14s to Futures 2026-07-16 2026 CA/NV Summer Speedo Sectionals @ BREA -venue
50 Breaststroke LCM 29.95 AAAA·Futures ✓+0.36s to Jr Nationals 2026-07-17 2026 CA/NV Summer Speedo Sectionals @ BREA -venue
100 Breaststroke LCM 1:05.04 AAAA·Jr Nationals ✓+1.35s to US Open 2026-08-03 2026 Speedo Junior National Championshipsvenue
200 Breaststroke LCM 2:22.78 AAAA·Winter JNs ✓+0.39s to Jr Nationals 2026-08-06 2026 Speedo Junior National Championshipsvenue
50 Butterfly LCM 27.03 AAA+0.64s to AAAA·+0.74s to Futures 2026-06-21 2026 SI Splash and Dashfast pool

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

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 LCM 25.10 flat 200 Free Relay 2026-07-16 2026 CA/NV Summer Speedo Sectionals @ BREA -
200 Freestyle LCM 2:06.47 flying 800 Free Relay (leg 2) 2026-07-17 2026 CA/NV Summer Speedo Sectionals @ BREA -
50 Breaststroke LCM 29.23 flying 200 Medley Relay (leg 2) 2026-07-16 2026 CA/NV Summer Speedo Sectionals @ BREA -
100 Breaststroke LCM 1:05.22 flying 400 Medley Relay (leg 2) 2026-07-19 2026 CA/NV Summer Speedo Sectionals @ BREA -

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 · LCM

981 points (1/6 events — incomplete)

EventTime Points
200 BR LCM 2:22.78 981
400 FR LCM 0
200 BK LCM 0
200 FL LCM 0
200 IM LCM 0
400 IM LCM 0

IMR 17-18 · LCM

1002 points (1/5 events — incomplete)

EventTime Points
100 BR LCM 1:05.04 1002
200 FR LCM 0
100 BK LCM 0
100 FL LCM 0
200 IM LCM 0

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

PR splits

100 Breaststroke SCY 56.33

26.21
30.12

Front half 26.21s · back half 30.12s

200 Breaststroke SCY 2:04.62

28.29
31.69
32.35
32.29

Front half 59.98s · back half 64.64s

100 Freestyle LCM 55.73 RT 0.65s

26.60
29.13

Front half 26.60s · back half 29.13s

100 Breaststroke LCM 1:05.04 RT 0.66s

30.88
34.16

Front half 30.88s · back half 34.16s

200 Breaststroke LCM 2:22.78 RT 0.68s

33.54
36.37
37.16
35.71

Front half 69.91s · back half 72.87s

Reaction time

fastest 0.61s average 0.656s slowest 0.68s 16 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 Backstroke SCY 25.55 1 swim
50 Breaststroke SCY 25.78 1 swim
100 Breaststroke SCY 56.33 1 swim
200 Breaststroke SCY 2:04.62 1 swim
50 Freestyle LCM 25.31 3 swims
100 Freestyle LCM 55.73 3 swims
50 Breaststroke LCM 29.95 7 swims
100 Breaststroke LCM 1:05.04 7 swims
200 Breaststroke LCM 2:22.78 3 swims
50 Butterfly LCM 27.03 3 swims