swimSonia Ellefson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.91 | BB+0.32s to A | 2025-12-14 | 2025 OR HEAT Age Group Jubilee venue |
| 100 Freestyle | SCY | 1:03.55 | BB+1.46s to A | 2025-12-13 | 2025 OR HEAT Age Group Jubilee venue |
| 200 Freestyle | SCY | 2:18.05 | BB+2.86s to A | 2026-02-07 | 2026 OR HEAT BC Blastoff venue |
| 500 Freestyle | SCY | 6:33.69 | B+3.10s to BB | 2026-02-08 | 2026 OR HEAT BC Blastoff venue |
| 50 Backstroke | SCY | 36.23 | B+1.64s to BB | 2025-05-17 | 2025 John DeRoest Sextathlon Swim Meet fast pool |
| 100 Backstroke | SCY | 1:14.22 | B+0.63s to BB | 2026-01-24 | 2026 TTSC Winter Qualifier venue |
| 200 Backstroke | SCY | 2:40.93 | B+2.14s to BB | 2026-02-15 | 2026 OR CB Valentine Last Chance Invitational fast pool |
| 50 Breaststroke | SCY | 38.16 | BB+1.17s to A | 2026-03-06 | 2026 OSI Arena SC 11-14 Champs fast pool |
| 100 Breaststroke | SCY | 1:21.18 | BB+3.19s to A | 2026-05-17 | 2026 John DeRoest Sextathlon Swim Meet fast pool |
| 200 Breaststroke | SCY | 3:07.74 | B+5.75s to BB | 2025-12-13 | 2025 OR HEAT Age Group Jubilee venue |
| 50 Butterfly | SCY | 35.37 | B+1.28s to BB | 2025-09-27 | FGSC 2025 Season Opener Pentathlon venue |
| 100 Butterfly | SCY | 1:17.01 | B+3.72s to BB | 2026-05-16 | 2026 John DeRoest Sextathlon Swim Meet fast pool |
| 100 Individual Medley | SCY | 1:20.35 | 2025-10-18 | 2025 CST Harvest Open venue | |
| 200 Individual Medley | SCY | 2:38.93 | BB+7.54s to A | 2026-02-08 | 2026 OR HEAT BC Blastoff venue |
| 50 Freestyle | SCM | 34.15 | BB+2.56s to A | 2026-06-06 | 2026 CST Summer Invitational venue |
| 200 Freestyle | SCM | 2:42.15 | B+0.36s to BB | 2026-06-07 | 2026 CST Summer Invitational venue |
| 400 Freestyle | SCM | 5:37.36 | BB+21.87s to A | 2026-06-05 | 2026 CST Summer Invitational venue |
| 50 Backstroke | SCM | 38.84 | B+0.65s to BB | 2026-06-07 | 2026 CST Summer Invitational venue |
| 200 Backstroke | SCM | 3:08.06 | B+12.67s to BB | 2026-06-06 | 2026 CST Summer Invitational venue |
| 200 Breaststroke | SCM | 3:19.96 | BB+14.37s to A | 2026-06-06 | 2026 CST Summer Invitational venue |
| 200 Individual Medley | SCM | 2:56.38 | BB+9.09s to A | 2026-06-07 | 2026 CST Summer Invitational venue |
| 50 Freestyle | LCM | 32.87 | BB+0.28s to A | 2025-07-24 | 2025 OSI Arena 11&O LC Championships venue |
| 100 Freestyle | LCM | 1:14.65 | BB+3.66s to A | 2025-07-13 | 2025 THSC Summer Classic venue |
| 200 Freestyle | LCM | 2:44.41 | BB+9.72s to A | 2026-06-14 | 2026 THSC June Open venue |
| 400 Freestyle | LCM | 5:50.07 | BB+25.08s to A | 2026-06-13 | 2026 THSC June Open venue |
| 50 Backstroke | LCM | 41.06 | B+0.47s to BB | 2025-07-13 | 2025 THSC Summer Classic venue |
| 100 Backstroke | LCM | 1:33.12 | +0.53s to B | 2026-05-02 | 2026 AAA May LC Invitational venue |
| 200 Backstroke | LCM | 3:17.69 | B+12.20s to BB | 2026-05-03 | 2026 AAA May LC Invitational venue |
| 50 Breaststroke | LCM | 45.93 | B+0.34s to BB | 2025-06-08 | 2025 THSC June Invitational venue |
| 100 Breaststroke | LCM | 1:33.85 | BB+4.06s to A | 2026-06-13 | 2026 THSC June Open venue |
| 200 Breaststroke | LCM | 3:20.13 | BB+6.64s to A | 2026-06-14 | 2026 THSC June Open venue |
| 50 Butterfly | LCM | 41.13 | B+2.84s to BB | 2025-06-07 | 2025 THSC June Invitational venue |
| 100 Butterfly | LCM | 1:35.05 | +5.16s to B | 2026-05-03 | 2026 AAA May LC Invitational venue |
| 200 Individual Medley | LCM | 3:13.57 | B+5.68s to BB | 2026-04-19 | 2026 MAC LONG-COURSE INVITATIONAL venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 29.52 | flat | 200 Free Relay | 2026-01-25 | 2026 TTSC Winter Qualifier |
| 50 Freestyle | SCY | 34.09 | flying | 200 Medley Relay (leg 4) | 2024-11-10 | 2024 THSC November Invitational |
| 50 Freestyle | SCY | 33.35 | flying | 200 Free Relay (leg 4) | 2025 McMinnville Season Finale Invitational | |
| 50 Breaststroke | SCY | 43.39 | flying | 200 Medley Relay (leg 2) | 2025-01-05 | 2025 CST Shark Chase Invitational |
| 50 Butterfly | SCY | 33.13 | flying | 200 Medley Relay (leg 3) | 2026-01-24 | 2026 TTSC Winter Qualifier |
| 50 Freestyle | SCM | 34.29 | flying | 200 Free Relay (leg 2) | 2026-06-06 | 2026 CST Summer Invitational |
| 100 Freestyle | LCM | 1:20.26 | flying | 400 Free Relay (leg 3) | 2025-05-04 | 2025 AAA May LC Invitational |
| 100 Breaststroke | LCM | 1:45.02 | flying | 400 Medley Relay (leg 2) | 2025-05-03 | 2025 AAA May LC 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 13-14 · SCY
1926 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:33.69 | 484 |
| 200 BK SCY | 2:40.93 | 466 |
| 200 BR SCY | 3:07.74 | 444 |
| 200 IM SCY | 2:38.93 | 532 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
2550 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:18.05 | 582 |
| 100 BK SCY | 1:14.22 | 469 |
| 100 BR SCY | 1:21.18 | 549 |
| 100 FL SCY | 1:17.01 | 418 |
| 200 IM SCY | 2:38.93 | 532 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:03.55
Front half 30.07s · back half 33.48s
200 Freestyle SCY 2:18.05
Front half 67.87s · back half 70.18s
500 Freestyle SCY 6:33.69
Front half 192.17s · back half 201.52s
100 Backstroke SCY 1:14.22
Front half 36.87s · back half 37.35s
200 Backstroke SCY 2:40.93
Front half 79.77s · back half 81.16s
100 Breaststroke SCY 1:21.18
Front half 38.33s · back half 42.85s
200 Breaststroke SCY 3:07.74
Front half 87.41s · back half 100.33s
100 Butterfly SCY 1:17.01
Front half 36.40s · back half 40.61s
100 Individual Medley SCY 1:20.35
Front half 38.97s · back half 41.38s
200 Individual Medley SCY 2:38.93
Front half 76.73s · back half 82.20s
200 Freestyle SCM 2:42.15
Front half 78.40s · back half 83.75s
400 Freestyle SCM 5:37.36
Front half 165.39s · back half 171.97s
200 Backstroke SCM 3:08.06
Front half 91.09s · back half 96.97s
200 Breaststroke SCM 3:19.96
Front half 97.88s · back half 102.08s
200 Individual Medley SCM 2:56.38
Front half 84.92s · back half 91.46s
100 Freestyle LCM 1:14.65
Front half 35.06s · back half 39.59s
200 Freestyle LCM 2:44.41
Front half 77.36s · back half 87.05s
400 Freestyle LCM 5:50.07
Front half 171.53s · back half 178.54s
100 Backstroke LCM 1:33.12
Front half 46.25s · back half 46.87s
200 Backstroke LCM 3:17.69
Front half 98.22s · back half 99.47s
100 Breaststroke LCM 1:33.85
Front half 44.17s · back half 49.68s
200 Breaststroke LCM 3:20.13
Front half 96.47s · back half 103.66s
100 Butterfly LCM 1:35.05
Front half 43.33s · back half 51.72s
200 Individual Medley LCM 3:13.57
Front half 95.55s · back half 98.02s
Progression
Faster times are higher. One card per event, all courses & history.