swimJuni Guo
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 19.57 | 2024-03-02 | 2024 MR Metro 8 & Under Championships | |
| 50 Freestyle | SCY | 29.92 | AA+0.23s to AAA | 2026-01-17 | 2026 MR AGUA MLK Invitational |
| 100 Freestyle | SCY | 1:07.10 | AA+2.01s to AAA | 2026-01-19 | 2026 MR AGUA MLK Invitational venue |
| 200 Freestyle | SCY | 2:31.76 | A+0.77s to AA | 2025-12-14 | 2025 Katie Ledecky Invitational venue |
| 1650 Freestyle | SCY | 18:08.77 | 2025-10-12 | 2025 MR AGUA Season Starter Time Trials | |
| 25 Backstroke | SCY | 21.96 | 2024-03-02 | 2024 MR Metro 8 & Under Championships | |
| 50 Backstroke | SCY | 35.79 | AA+1.40s to AAA | 2026-03-13 | 2026 MR SC Junior Metropolitan Championships venue |
| 100 Backstroke | SCY | 1:15.92 | AA+1.43s to AAA | 2026-03-15 | 2026 MR SC Junior Metropolitan Championships venue |
| 200 Backstroke | SCY | 2:52.68 | 2026-01-17 | 2026 MR AGUA MLK Invitational | |
| 25 Breaststroke | SCY | 27.88 | 2024-01-01 | Metropolitan Swimming Club | |
| 50 Breaststroke | SCY | 36.99 | AAA+0.10s to AAAA | 2026-03-13 | 2026 MR SC Junior Metropolitan Championships |
| 100 Breaststroke | SCY | 1:32.18 | A+3.09s to AA | 2026-01-19 | 2026 MR AGUA MLK Invitational venue |
| 200 Breaststroke | SCY | 3:11.74 | 2026-01-17 | 2026 MR AGUA MLK Invitational | |
| 25 Butterfly | SCY | 23.07 | 2024-03-02 | 2024 MR Metro 8 & Under Championships | |
| 50 Butterfly | SCY | 34.92 | AA+1.73s to AAA | 2026-03-15 | 2026 MR SC Junior Metropolitan Championships venue |
| 100 Butterfly | SCY | 1:29.43 | BB+3.34s to A | 2026-01-17 | 2026 MR AGUA MLK Invitational venue |
| 200 Butterfly | SCY | 6:04.31 | 2026-01-17 | 2026 MR AGUA MLK Invitational | |
| 100 Individual Medley | SCY | 1:16.57 | AA+1.38s to AAA | 2026-03-13 | 2026 MR SC Junior Metropolitan Championships |
| 400 Individual Medley | SCY | 6:04.31 | 2026-01-19 | 2026 MR AGUA MLK Invitational venue | |
| 50 Freestyle | LCM | 33.82 | AA+0.13s to AAA | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 100 Freestyle | LCM | 1:15.74 | AA+1.15s to AAA | 2026-05-24 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 200 Freestyle | LCM | 2:48.14 | AA+4.65s to AAA | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 50 Backstroke | LCM | 42.19 | A+0.60s to AA | 2026-05-24 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 50 Breaststroke | LCM | 49.20 | BB+0.41s to A | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational |
| 50 Butterfly | LCM | 40.63 | A+1.14s to AA | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | 29.43 | flying | 200 Medley Relay (leg 4) | 2025-12-14 | 2025 Katie Ledecky Invitational |
| 50 Freestyle | SCY | 30.19 | flying | 200 Free Relay (leg 2) | 2025-12-12 | 2025 Katie Ledecky Invitational |
| 100 Freestyle | SCY | 1:07.34 | flying | 400 Free Relay (leg 2) | 2025-12-13 | 2025 Katie Ledecky 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 10 & under · SCY
2681 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:31.76 | 722 |
| 100 BK SCY | 1:15.92 | 803 |
| 100 BR SCY | 1:32.18 | 658 |
| 100 FL SCY | 1:29.43 | 498 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
4041 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:07.10 | 780 |
| 50 BK SCY | 35.79 | 755 |
| 50 BR SCY | 36.99 | 991 |
| 50 FL SCY | 34.92 | 719 |
| 100 IM SCY | 1:16.57 | 796 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
50 Freestyle SCY 29.92 split/total mismatch
Front half 87.81s · back half -57.89s
200 Freestyle SCY 2:31.76
Front half 73.41s · back half 78.35s
1650 Freestyle SCY 18:08.77 split/total mismatch
100 Backstroke SCY 1:15.92
Front half 36.47s · back half 39.45s
200 Backstroke SCY 2:52.68
Front half 84.81s · back half 87.87s
100 Breaststroke SCY 1:32.18
Front half 44.34s · back half 47.84s
200 Breaststroke SCY 3:11.74
Front half 93.06s · back half 98.68s
100 Butterfly SCY 1:29.43
Front half 39.36s · back half 50.07s
100 Individual Medley SCY 1:16.57
400 Individual Medley SCY 6:04.31
Front half 182.59s · back half 181.72s
200 Freestyle LCM 2:48.14
Front half 80.36s · back half 87.78s
Progression
Faster times are higher. One card per event, all courses & history.