Sienna Halleen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.91 | BB+0.52s to A | 2025-01-25 | 2025 CO FAST Winter Open venue |
| 100 Freestyle | SCY | 58.72 | A+1.73s to AA | 2025-01-01 | 2025 CO TOPS Denver Invitational |
| 200 Freestyle | SCY | 2:04.07 | A+1.38s to AA | 2026-03-13 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 500 Freestyle | SCY | 5:14.49 | AAA+12.50s to AAAA | 2025-10-26 | 2025 CO Falfins Brute Squad |
| 1000 Freestyle | SCY | 11:07.62 | AA+9.03s to AAA | 2026-03-12 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 1650 Freestyle | SCY | 18:35.52 | AA+12.93s to AAA | 2026-03-15 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 50 Backstroke | SCY | 35.26 | B+2.47s to BB | 2023-03-11 | 2023 CO Zone 5 Championships venue |
| 100 Backstroke | SCY | 1:13.11 | B+3.52s to BB | 2023-10-21 | 2023 CO MACS Fall Invitational venue |
| 200 Backstroke | SCY | 2:35.43 | B+4.54s to BB | 2024-11-16 | 2024 CO TOPS Fall Invite venue |
| 50 Breaststroke | SCY | 39.15 | B+0.76s to BB | 2022-12-11 | 2022 CO Falfins Holiday Open venue |
| 100 Breaststroke | SCY | 1:18.93 | BB+4.74s to A | 2025-01-01 | Colorado Swimming Championship Meet |
| 200 Breaststroke | SCY | 2:52.15 | BB+11.46s to A | 2024-10-20 | 2024 CO MACS Fall Invitational venue |
| 50 Butterfly | SCY | 29.66 | A+0.87s to AA | 2025-12-21 | 2025 CO Falfins Holiday Open fast pool |
| 100 Butterfly | SCY | 1:05.96 | BB+1.87s to A | 2025-01-01 | 2025 CO TOPS Denver Invitational |
| 200 Butterfly | SCY | 2:24.35 | BB+1.76s to A | 2025-01-01 | 2025 CO TOPS Denver Invitational |
| 100 Individual Medley | SCY | 1:15.64 | 2022-12-11 | 2022 CO Falfins Holiday Open venue | |
| 200 Individual Medley | SCY | 2:28.47 | BB+5.08s to A | 2025-01-24 | 2025 CO FAST Winter Open venue |
| 400 Individual Medley | SCY | 5:12.92 | BB+5.93s to A | 2025-01-25 | 2025 CO FAST Winter Open venue |
| 50 Freestyle | LCM | 30.93 | A+1.04s to AA | 2026-04-26 | 2026 CO Steve Drozda LC Shotgun venue |
| 100 Freestyle | LCM | 1:06.78 | A+2.29s to AA | 2026-04-25 | 2026 CO Steve Drozda LC Shotgun venue |
| 200 Freestyle | LCM | 2:25.33 | BB+0.04s to A | 2026-06-19 | 2026 CO Falfins Long Course Open |
| 400 Freestyle | LCM | 5:04.48 | A+9.59s to AA | 2026-06-21 | 2026 CO Falfins Long Course Open venue |
| 800 Freestyle | LCM | 10:20.84 | A+11.95s to AA | 2025-07-20 | 2025 CO CSI Senior LC State Championships venue |
| 1500 Freestyle | LCM | 19:57.02 | A+26.23s to AA | 2025-07-17 | 2025 CO CSI Senior LC State Championships venue |
| 100 Backstroke | LCM | 1:19.33 | BB+4.34s to A | 2025-06-21 | 2025 Falfins Long Course Open venue |
| 200 Backstroke | LCM | 2:55.65 | B+1.16s to BB | 2025-04-26 | 2025 CO FST Spring LC Fever fast pool |
| 50 Breaststroke | LCM | 50.11 | +3.22s to B | 2022-05-22 | 2022 CO ACES Spring Invite venue |
| 100 Breaststroke | LCM | 1:29.10 | BB+4.01s to A | 2025-06-21 | 2025 Falfins Long Course Open venue |
| 200 Breaststroke | LCM | 3:16.79 | BB+14.40s to A | 2025-05-18 | 2025 CO ACES Spring Invite venue |
| 50 Butterfly | LCM | 32.22 | A+0.03s to AA | 2026-06-20 | 2026 CO Falfins Long Course Open venue |
| 100 Butterfly | LCM | 1:15.41 | BB+3.02s to A | 2026-06-21 | 2026 CO Falfins Long Course Open venue |
| 200 Butterfly | LCM | 2:54.55 | BB+13.26s to A | 2024-05-26 | 13th Annual Speedo Arizona Invitational venue |
| 200 Individual Medley | LCM | 2:47.13 | BB+2.74s to A | 2026-05-16 | 2026 CO ACES Spring Invite venue |
| 400 Individual Medley | LCM | 5:47.51 | A+12.42s to AA | 2026-05-15 | 2026 CO ACES Spring Invite venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 Backstroke | SCY | 26.83 | flat | 200 Medley Relay | 2025-12-21 | 2025 CO Falfins Holiday Open |
| 50 Freestyle | LCM | 33.11 | flying | 200 Free Relay (leg 3) | 2022-07-31 | 2022 CO CSI 12&U Age Group Championships |
| 100 Freestyle | LCM | 1:07.17 | flying | 400 Medley Relay (leg 4) | 2024-07-18 | 2024 CO CSI Senior LC Championships |
| 100 Freestyle | LCM | 1:08.52 | flying | 400 Free Relay (leg 2) | 2024-07-18 | 2024 CO CSI Senior LC 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
3729 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:14.49 | 874 |
| 200 BK SCY | 2:35.43 | 479 |
| 200 BR SCY | 2:52.15 | 531 |
| 200 FL SCY | 2:24.35 | 639 |
| 200 IM SCY | 2:28.47 | 590 |
| 400 IM SCY | 5:12.92 | 616 |
IMR 15-16 · LCM
3013 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:25.33 | 665 |
| 100 BK LCM | 1:19.33 | 554 |
| 100 BR LCM | 1:29.10 | 572 |
| 100 FL LCM | 1:15.41 | 591 |
| 200 IM LCM | 2:47.13 | 631 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:04.07
Front half 60.00s · back half 64.07s
1000 Freestyle SCY 11:07.62
Front half 331.79s · back half 335.83s
1650 Freestyle SCY 18:35.52
100 Backstroke SCY 1:13.11
Front half 35.76s · back half 37.35s
200 Backstroke SCY 2:35.43
Front half 76.91s · back half 78.52s
200 Breaststroke SCY 2:52.15
Front half 82.29s · back half 89.86s
100 Individual Medley SCY 1:15.64
Front half 35.10s · back half 40.54s
200 Individual Medley SCY 2:28.47
Front half 69.43s · back half 79.04s
400 Individual Medley SCY 5:12.92
Front half 150.65s · back half 162.27s
100 Freestyle LCM 1:06.78
Front half 32.15s · back half 34.63s
400 Freestyle LCM 5:04.48
800 Freestyle LCM 10:20.84
Front half 311.28s · back half 309.56s
1500 Freestyle LCM 19:57.02
Front half 597.40s · back half 599.62s
100 Backstroke LCM 1:19.33
Front half 38.41s · back half 40.92s
200 Backstroke LCM 2:55.65
Front half 86.90s · back half 88.75s
100 Breaststroke LCM 1:29.10
Front half 41.53s · back half 47.57s
200 Breaststroke LCM 3:16.79
Front half 94.74s · back half 102.05s
100 Butterfly LCM 1:15.41
Front half 35.05s · back half 40.36s
200 Butterfly LCM 2:54.55
Front half 82.51s · back half 92.04s
200 Individual Medley LCM 2:47.13
Front half 79.89s · back half 87.24s
400 Individual Medley LCM 5:47.51
Front half 167.77s · back half 179.74s
Progression
Faster times are higher. One card per event, all courses & history.