swimJustin Chung
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.31 | A+0.62s to AA | 2024-02-25 | 2024 PN February Age Group Invitational venue |
| 100 Freestyle | SCY | 53.37 | BB+1.38s to A | 2024-01-14 | 2024 PN VAST 47th Annual Washington Open venue |
| 200 Freestyle | SCY | 2:00.20 | BB+5.31s to A | 2024-04-14 | 2024 PN UPAC Mark Olson Invitational venue |
| 500 Freestyle | SCY | 5:45.23 | B+6.44s to BB | 2024-02-04 | 2024 PN OCA John Walker Distance Invitational venue |
| 50 Backstroke | SCY | 27.20 | BB+0.71s to A | 2024-02-25 | 2024 PN February Age Group Invitational venue |
| 200 Backstroke | SCY | 2:17.77 | B+3.68s to BB | 2024-04-14 | 2024 PN UPAC Mark Olson Invitational venue |
| 50 Butterfly | SCY | 26.21 | A+0.82s to AA | 2024-01-14 | 2024 PN VAST 47th Annual Washington Open venue |
| 100 Butterfly | SCY | 59.79 | BB+3.60s to A | 2024-04-14 | 2024 PN UPAC Mark Olson Invitational venue |
| 400 Individual Medley | SCY | 4:56.25 | BB+22.66s to A | 2024-04-12 | 2024 PN UPAC Mark Olson Invitational venue |
| 50 Freestyle | LCM | 27.10 | A+0.81s to AA | 2024-06-16 | 2024 PN UPAC Cannonball Classic venue |
| 100 Freestyle | LCM | 1:00.67 | BB+0.48s to A | 2024-05-05 | 2024 PN BC May Flowers venue |
| 200 Freestyle | LCM | 2:16.74 | BB+5.15s to A | 2024-05-05 | 2024 PN BC May Flowers venue |
| 400 Freestyle | LCM | 5:20.30 | B+16.31s to BB | 2023-07-07 | 2023 Sizzlin' Summer Splash slow pool |
| 100 Backstroke | LCM | 1:15.07 | B+2.48s to BB | 2023-07-09 | 2023 Sizzlin' Summer Splash slow pool |
| 50 Butterfly | LCM | 29.86 | A+1.27s to AA | 2024-05-05 | 2024 PN BC May Flowers venue |
| 100 Butterfly | LCM | 1:10.64 | B+0.95s to BB | 2024-06-16 | 2024 PN UPAC Cannonball Classic venue |
| 200 Individual Medley | LCM | 2:40.66 | B+0.27s to BB | 2024-06-16 | 2024 PN UPAC Cannonball Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | 24.46 | flat | 200 Free Relay | 2024-04-14 | 2024 PN UPAC Mark Olson Invitational |
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 · SCY
1489 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:45.23 | 491 |
| 200 BK SCY | 2:17.77 | 480 |
| 400 IM SCY | 4:56.25 | 518 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 17-18 · LCM
2069 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:16.74 | 590 |
| 100 BK LCM | 1:15.07 | 465 |
| 100 FL LCM | 1:10.64 | 497 |
| 200 IM LCM | 2:40.66 | 517 |
| 100 BR LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.37 RT 0.57s
Front half 25.43s · back half 27.94s
200 Freestyle SCY 2:00.20
Front half 57.29s · back half 62.91s
500 Freestyle SCY 5:45.23
Front half 159.58s · back half 185.65s
200 Backstroke SCY 2:17.77
Front half 66.41s · back half 71.36s
100 Butterfly SCY 59.79
Front half 27.67s · back half 32.12s
400 Individual Medley SCY 4:56.25
Front half 140.61s · back half 155.64s
200 Freestyle LCM 2:16.74 RT 0.71s
Front half 65.09s · back half 71.65s
400 Freestyle LCM 5:20.30
Front half 148.44s · back half 171.86s
200 Individual Medley LCM 2:40.66 RT 0.56s
Front half 74.20s · back half 86.46s
Reaction time
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.