Helen Rosenberg
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.78 | AA+0.39s to AAA | 2025-12-05 | 2025 Holiday Swim Festival venue |
| 100 Freestyle | SCY | 57.00 | AA+1.91s to AAA | 2026-02-13 | 2026 MHSA USA High School State Observed venue |
| 200 Freestyle | SCY | 2:08.28 | A+3.99s to AA | 2026-02-08 | 2026 MT MAC Sprinterfest venue |
| 500 Freestyle | SCY | 6:08.47 | BB+18.58s to A | 2025-09-27 | 2025 GAC Fall Frenzy venue |
| 1000 Freestyle | SCY | 12:48.46 | BB+48.57s to A | 2025-10-26 | 2025 MT GFST Rapids Fall Frost venue |
| 1650 Freestyle | SCY | 21:29.54 | BB+71.55s to A | 2025-11-16 | 2025 MT MAC Fall Invitational venue |
| 25 Backstroke | SCY | 15.27 | 2025-02-08 | 2025 MT MAC Sprinterfest | |
| 50 Backstroke | SCY | 29.55 | A+0.06s to AA | 2025-11-15 | 2025 MT MAC Fall Invitational venue |
| 100 Backstroke | SCY | 1:06.13 | BB+1.04s to A | 2026-03-13 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Backstroke | SCY | 2:26.52 | BB+5.23s to A | 2026-01-30 | 2026 MT MYST 5 th Annual Dennis Bender Meet2 venue |
| 25 Breaststroke | SCY | 15.82 | 2026-02-07 | 2026 MT MAC Sprinterfest venue | |
| 50 Breaststroke | SCY | 27.01 | AAAA | 2025-03-20 | Southwest Age Group Regional 2025 |
| 100 Breaststroke | SCY | 1:15.90 | BB+0.91s to A | 2026-03-14 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Breaststroke | SCY | 2:55.71 | B+1.02s to BB | 2024-12-15 | 2024 MT BOZ TEDDY BEAR CLASSIC venue |
| 25 Butterfly | SCY | 14.16 | 2025-02-08 | 2025 MT MAC Sprinterfest | |
| 50 Butterfly | SCY | 27.77 | AAA+1.28s to AAAA | 2026-03-14 | 2026 NW Spring Speedo Time Trials- Boise venue |
| 100 Butterfly | SCY | 1:05.14 | BB+0.15s to A | 2026-03-14 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Butterfly | SCY | 2:41.56 | B+5.37s to BB | 2025-10-12 | 2025 MT HLST Jamie Turner Memorial venue |
| 100 Individual Medley | SCY | 59.82 | 2025-03-20 | Southwest Age Group Regional 2025 | |
| 200 Individual Medley | SCY | 2:33.28 | BB+8.49s to A | 2024-11-02 | 2024 MT MAC Fall Invitational venue |
| 400 Individual Medley | SCY | 5:17.61 | BB+6.62s to A | 2026-02-28 | 2026 MT Swimming SC State Championships venue |
| 50 Freestyle | LCM | 29.96 | AA+0.97s to AAA | 2026-06-27 | 2026 MT MAC 45th Annual Firecracker Classic venue |
| 100 Freestyle | LCM | 1:06.77 | A+1.48s to AA | 2025-08-06 | 2025 Western Zone Age Group LCM Championships |
| 200 Freestyle | LCM | 2:27.53 | A+5.84s to AA | 2025-08-06 | 2025 Western Zone Age Group LCM Championships |
| 400 Freestyle | LCM | 5:21.74 | BB+10.65s to A | 2026-06-25 | 2026 MT MAC 45th Annual Firecracker Classic venue |
| 50 Backstroke | LCM | 32.80 | AAA+1.01s to AAAA | 2025-01-01 | Spring Chicken First Splash 2025 |
| 100 Backstroke | LCM | 1:20.44 | BB+4.75s to A | 2025-07-13 | 2025 MT HLST Last Chance Invitational slow pool |
| 200 Backstroke | LCM | 3:00.09 | B+3.70s to BB | 2026-05-17 | 2026 MT Bozeman May Classic venue |
| 50 Breaststroke | LCM | 40.82 | BB+0.53s to A | 2026-06-27 | 2026 MT MAC 45th Annual Firecracker Classic venue |
| 100 Breaststroke | LCM | 1:30.81 | BB+4.92s to A | 2025-07-18 | 2025 MT Swimming LC State Championships venue |
| 200 Breaststroke | LCM | 3:26.20 | B+4.91s to BB | 2025-04-12 | 2025 MT Bozeman Spring Chicken venue |
| 50 Butterfly | LCM | 32.40 | AA+1.11s to AAA | 2026-06-28 | 2026 MT MAC 45th Annual Firecracker Classic venue |
| 100 Butterfly | LCM | 1:16.77 | BB+3.28s to A | 2025-07-19 | 2025 MT Swimming LC State Championships venue |
| 200 Individual Medley | LCM | 2:21.84 | AAAA | 2025-08-06 | 2025 Western Zone Age Group LCM Championships |
| 400 Individual Medley | LCM | 6:22.06 | BB+27.17s to A | 2025-04-13 | 2025 MT Bozeman Spring Chicken venue |
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 | 27.52 | flat | 200 Free Relay | 2024-12-06 | 2024 Holiday Swim Festival |
| 50 Freestyle | SCY | 25.67 | flying | 200 Free Relay (leg 2) | 2025-12-05 | 2025 Holiday Swim Festival |
| 50 Freestyle | SCY | 27.30 | flying | 200 Medley Relay (leg 4) | 2024-11-09 | 2024 MT BYSC Mining City Classic |
| 100 Freestyle | SCY | 58.62 | flat | 400 Free Relay | 2026-02-27 | 2026 MT Swimming SC State Championships |
| 100 Freestyle | SCY | 57.18 | flying | 400 Free Relay (leg 4) | 2025-12-06 | 2025 Holiday Swim Festival |
| 50 Breaststroke | SCY | 32.83 | flying | 200 Medley Relay (leg 2) | 2024-12-14 | 2024 MT BOZ TEDDY BEAR CLASSIC |
| 100 Breaststroke | SCY | 1:22.39 | flying | 400 Medley Relay (leg 2) | 2024-12-06 | 2024 Holiday Swim Festival |
| 50 Butterfly | SCY | 29.04 | flying | 200 Medley Relay (leg 3) | 2026-02-28 | 2026 MT Swimming SC State Championships |
| 100 Butterfly | SCY | 1:05.11 | flying | 400 Medley Relay (leg 3) | 2025-12-05 | 2025 Holiday Swim Festival |
| 100 Freestyle | LCM | 1:10.61 | flat | 400 Free Relay | 2026-05-16 | 2026 MT Bozeman May Classic |
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
3197 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:08.47 | 543 |
| 200 BK SCY | 2:26.52 | 572 |
| 200 BR SCY | 2:55.71 | 500 |
| 200 FL SCY | 2:41.56 | 456 |
| 200 IM SCY | 2:33.28 | 537 |
| 400 IM SCY | 5:17.61 | 589 |
IMR 15-16 · LCM
3301 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:27.53 | 636 |
| 100 BK LCM | 1:20.44 | 532 |
| 100 BR LCM | 1:30.81 | 540 |
| 100 FL LCM | 1:16.77 | 560 |
| 200 IM LCM | 2:21.84 | 1033 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 57.00
Front half 27.24s · back half 29.76s
200 Freestyle SCY 2:08.28
Front half 62.23s · back half 66.05s
500 Freestyle SCY 6:08.47
Front half 184.79s · back half 183.68s
1000 Freestyle SCY 12:48.46
Front half 385.71s · back half 382.75s
1650 Freestyle SCY 21:29.54
100 Backstroke SCY 1:06.13
Front half 31.24s · back half 34.89s
200 Backstroke SCY 2:26.52
Front half 33.16s · back half 113.36s
100 Breaststroke SCY 1:15.90
Front half 34.59s · back half 41.31s
200 Breaststroke SCY 2:55.71
Front half 85.02s · back half 90.69s
100 Butterfly SCY 1:05.14
Front half 30.72s · back half 34.42s
200 Butterfly SCY 2:41.56
Front half 75.70s · back half 85.86s
200 Individual Medley SCY 2:33.28
Front half 72.75s · back half 80.53s
400 Individual Medley SCY 5:17.61
Front half 153.78s · back half 163.83s
400 Freestyle LCM 5:21.74
Front half 158.81s · back half 162.93s
200 Backstroke LCM 3:00.09
Front half 90.76s · back half 89.33s
200 Breaststroke LCM 3:26.20
Front half 100.65s · back half 105.55s
400 Individual Medley LCM 6:22.06
Front half 191.38s · back half 190.68s
Progression
Faster times are higher. One card per event, all courses & history.