Julia Bak
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 15.13 | 2019-10-12 | 2019 MR AGUA Swim For The Future | |
| 50 Freestyle | SCY | 22.78 | AAAA | 2025-02-13 | 2025 MR TYR Senior Met Winter Championship |
| 100 Freestyle | SCY | 49.70 | AAAA | 2026-02-15 | 2026 MR TYR Senior Mets Winter Championship venue |
| 200 Freestyle | SCY | 1:49.37 | AAAA | 2025-12-12 | 2025 Katie Ledecky Invitational venue |
| 500 Freestyle | SCY | 5:13.44 | AAA+7.35s to AAAA | 2026-03-07 | 2026 MR AGUA Last Chance Invitational |
| 25 Backstroke | SCY | 17.83 | 2019-10-12 | 2019 MR AGUA Swim For The Future | |
| 50 Backstroke | SCY | 27.31 | AAA+0.32s to AAAA | 2023-01-01 | Sanction #: 231007 |
| 100 Backstroke | SCY | 54.10 | AAAA | 2025-12-13 | 2025 Katie Ledecky Invitational venue |
| 200 Backstroke | SCY | 2:02.92 | AAAA | 2026-03-26 | 2026 SwimRVA Shamrock Showdown |
| 50 Breaststroke | SCY | 39.73 | B+0.84s to BB | 2021-03-21 | 2021 MR QNS Last Dayz Time Trial |
| 100 Breaststroke | SCY | 1:10.68 | AA+1.99s to AAA | 2024-01-20 | 2024 MR WEST Chris Dewey IMX Memorial Meet |
| 50 Butterfly | SCY | 25.58 | AAAA | 2024-09-21 | 2024 MR SSC TYR September Sprint Meet |
| 100 Butterfly | SCY | 54.20 | AAAA | 2025-12-12 | 2025 Katie Ledecky Invitational venue |
| 200 Butterfly | SCY | 2:09.02 | AAA+2.83s to AAAA | 2025-03-14 | 2025 MR SC Junior Metropolitan Championships |
| 100 Individual Medley | SCY | 56.68 | 2026-03-26 | 2026 SwimRVA Shamrock Showdown | |
| 200 Individual Medley | SCY | 1:46.47 | AAAA | 2022-10-29 | 2022 MR QNS Get Your Swim On Time Trials |
| 400 Individual Medley | SCY | 4:45.24 | AA+0.15s to AAA | 2026-03-07 | 2026 MR AGUA Last Chance Invitational venue |
| 50 Freestyle | LCM | 26.37 | AAAA | 2026-05-14 | 2026 EZ LC Speedo Super Sectionals |
| 100 Freestyle | LCM | 57.84 | AAAA | 2026-05-14 | 2026 EZ LC Speedo Super Sectionals venue |
| 200 Freestyle | LCM | 2:11.96 | AAA+2.57s to AAAA | 2026-05-14 | 2026 EZ LC Speedo Super Sectionals |
| 400 Freestyle | LCM | 4:50.22 | AA+5.03s to AAA | 2023-07-21 | 2023 MR Metro LC Age Group Championships |
| 50 Backstroke | LCM | 29.57 | AAAA | 2026-05-01 | 2026 MR COND May Meters Matter Invitational fast pool |
| 100 Backstroke | LCM | 1:04.01 | AAAA | 2025-07-10 | 2025 MR TYR Senior Metropolitan Summer Champs |
| 200 Backstroke | LCM | 2:26.81 | AAA+4.32s to AAAA | 2026-05-02 | 2026 MR COND May Meters Matter Invitational fast pool |
| 50 Breaststroke | LCM | 40.52 | BB+0.23s to A | 2023-05-27 | 2023 MR AGUA Memorial Day Invitational |
| 100 Breaststroke | LCM | 1:05.18 | AAAA | 2021-06-12 | 2021 MR YMID Floating Into Summer TT |
| 50 Butterfly | LCM | 28.14 | AAAA | 2026-05-14 | 2026 EZ LC Speedo Super Sectionals |
| 100 Butterfly | LCM | 1:02.69 | AAAA | 2026-05-14 | 2026 EZ LC Speedo Super Sectionals |
| 200 Individual Medley | LCM | 2:30.52 | AAA+4.63s to AAAA | 2024-06-21 | 2024 MR LIE June Jamboree Invitational |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | 22.82 | flying | 200 Free Relay (leg 4) | 2025-12-12 | 2025 Katie Ledecky Invitational |
| 100 Freestyle | SCY | 51.96 | flying | 400 Free Relay (leg 4) | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs |
| 50 Backstroke | SCY | 25.24 | flat | 200 Medley Relay | 2025-12-12 | 2025 Katie Ledecky Invitational |
| 100 Backstroke | SCY | 58.88 | flat | 400 Medley Relay | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs |
| 50 Freestyle | LCM | 26.92 | flying | 200 Free Relay (leg 4) | 2024-07-12 | 2024 MR Senior Mets LC Summer Championship |
| 100 Freestyle | LCM | 1:00.32 | flat | 400 Free Relay | 2023-07-22 | 2023 MR Metro LC Age Group Championships |
| 100 Freestyle | LCM | 59.58 | flying | 400 Free Relay (leg 4) | 2024-07-14 | 2024 MR Senior Mets LC Summer Championship |
| 200 Freestyle | LCM | 2:19.07 | flying | 800 Free Relay (leg 4) | 2026-05-16 | 2026 EZ LC Speedo Super Sectionals |
| 50 Backstroke | LCM | 30.97 | flat | 200 Medley Relay | 2023-07-21 | 2023 MR Metro LC Age Group Championships |
| 100 Backstroke | LCM | 1:06.54 | flat | 400 Medley Relay | 2026-05-17 | 2026 EZ LC Speedo Super Sectionals |
| 50 Butterfly | LCM | 30.34 | flying | 200 Medley Relay (leg 3) | 2024-07-12 | 2024 MR Senior Mets LC Summer Championship |
| 100 Butterfly | LCM | 1:06.86 | flying | 400 Medley Relay (leg 3) | 2023-07-15 | 2023 MR Senior Mets LCM 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 15-16 · SCY
4662 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:13.44 | 883 |
| 200 BK SCY | 2:02.92 | 970 |
| 200 FL SCY | 2:09.02 | 896 |
| 200 IM SCY | 1:46.47 | 1100 |
| 400 IM SCY | 4:45.24 | 813 |
| 200 BR SCY | — | 0 |
IMR 15-16 · SCY
5116 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:49.37 | 1067 |
| 100 BK SCY | 54.10 | 1100 |
| 100 BR SCY | 1:10.68 | 759 |
| 100 FL SCY | 54.20 | 1090 |
| 200 IM SCY | 1:46.47 | 1100 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 49.70
Front half 23.79s · back half 25.91s
200 Freestyle SCY 1:49.37
Front half 52.18s · back half 57.19s
500 Freestyle SCY 5:13.44 split/total mismatch
100 Backstroke SCY 54.10
Front half 25.70s · back half 28.40s
100 Butterfly SCY 54.20
Front half 25.11s · back half 29.09s
400 Individual Medley SCY 4:45.24
Front half 134.97s · back half 150.27s
100 Freestyle LCM 57.84
Front half 27.85s · back half 29.99s
200 Backstroke LCM 2:26.81
Front half 71.28s · back half 75.53s
Progression
Faster times are higher. One card per event, all courses & history.