swimSienna Borchert
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.16 | 2024-12-06 | 2024 Holiday Swim Festival venue | |
| 100 Freestyle | SCY | 55.85 | 2025-02-14 | 2025 SI Presidents' Day Senior Classic | |
| 200 Freestyle | SCY | 2:00.08 | 2024-11-09 | 2024 Legends of Coaching Series-Kevin Perry venue | |
| 500 Freestyle | SCY | 5:15.62 | 2025-02-14 | 2025 SI Presidents' Day Senior Classic | |
| 1000 Freestyle | SCY | 11:10.61 | 2024 President's Day Senior Classic Meet venue | ||
| 1650 Freestyle | SCY | 18:41.58 | 2024-12-23 | 2024 SI Winter Age Group Championships venue | |
| 200 Backstroke | SCY | 2:23.90 | 2025-01-01 | FAST - CA | |
| 50 Breaststroke | SCY | 31.44 | 2024-12-07 | 2024 Holiday Swim Festival venue | |
| 100 Breaststroke | SCY | 1:08.23 | 2024-12-06 | 2024 Holiday Swim Festival venue | |
| 200 Breaststroke | SCY | 2:28.64 | 2025-02-14 | 2025 SI Presidents' Day Senior Classic | |
| 100 Butterfly | SCY | 1:07.55 | 2024-10-06 | 2024 SI CAST Senior Meet venue | |
| 200 Individual Medley | SCY | 2:17.46 | 2024-12-21 | 2024 SI Winter Age Group Championships venue | |
| 50 Freestyle | LCM | 30.53 | 2025-05-23 | 2025 CA 29th NOVA-Speedo Grand Challenge venue | |
| 100 Freestyle | LCM | 1:05.59 | 2026-06-19 | 2026 SI Splash and Dash fast pool | |
| 200 Freestyle | LCM | 2:17.89 | 2025-07-26 | 2025 SI LC AG CHAMPS venue | |
| 400 Freestyle | LCM | 4:53.28 | 2024-08-01 | GroupB - WZ LCM Senior Champs 2024 venue | |
| 800 Freestyle | LCM | 10:07.80 | 2024-08-03 | WZ LCM Senior Champs 2024 venue | |
| 50 Breaststroke | LCM | 36.78 | 2024-06-21 | 2024 SI SPLASH AND DASH venue | |
| 100 Breaststroke | LCM | 1:19.37 | 2024-07-25 | 2024 SI LC AG CHAMPS | |
| 200 Breaststroke | LCM | 2:56.17 | 2025-07-26 | 2025 SI LC AG CHAMPS venue | |
| 50 Butterfly | LCM | 34.77 | 2026-06-21 | 2026 SI Splash and Dash fast pool | |
| 200 Individual Medley | LCM | 2:38.95 | 2024-07-25 | 2024 SI LC AG CHAMPS |
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 | 26.67 | flat | 200 Free Relay | 2024-12-23 | 2024 SI Winter Age Group Championships |
| 50 Breaststroke | SCY | 31.82 | flying | 200 Medley Relay (leg 2) | 2024-12-21 | 2024 SI Winter Age Group Championships |
| 200 Freestyle | LCM | 2:19.61 | flying | 800 Free Relay (leg 3) | 2024-07-31 | WZ LCM Senior Champs 2024 |
| 100 Breaststroke | LCM | 1:19.93 | flying | 400 Medley Relay (leg 2) | 2024-07-27 | 2024 SI LC AG CHAMPS |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
200 Freestyle SCY 2:00.08
Front half 57.61s · back half 62.47s
1650 Freestyle SCY 18:41.58
100 Breaststroke SCY 1:08.23
Front half 32.64s · back half 35.59s
100 Butterfly SCY 1:07.55
Front half 31.08s · back half 36.47s
200 Individual Medley SCY 2:17.46
Front half 65.73s · back half 71.73s
100 Freestyle LCM 1:05.59
Front half 31.38s · back half 34.21s
200 Freestyle LCM 2:17.89
Front half 66.98s · back half 70.91s
400 Freestyle LCM 4:53.28
Front half 143.16s · back half 150.12s
800 Freestyle LCM 10:07.80
Front half 298.75s · back half 309.05s
200 Breaststroke LCM 2:56.17
Front half 84.72s · back half 91.45s
Progression
Faster times are higher. One card per event, all courses & history.