swimLily Petersen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.03 | AA+0.04s to AAA·+0.14s to Sectionals | 2025-01-18 | 2025 SE Ralph Crocker Classicvenue |
| 100 Freestyle | SCY | 54.22 | AA+0.13s to AAA·+0.13s to Sectionals | 2025-01-19 | 2025 SE Ralph Crocker Classicvenue |
| 200 Freestyle | SCY | 1:56.25 | AAA+4.56s to AAAA·Sectionals ✓+3.96s to Futures | 2025-12-05 | 2025 GA SC Senior State Championships - copievenue |
| 500 Freestyle | SCY | 5:30.91 | A+0.92s to AA·+21.02s to Sectionals | 2025-12-06 | 2025 GA SC Senior State Championships - copievenue |
| 50 Backstroke | SCY | 29.33 | A+0.44s to AA·+0.74s to Sectionals | 2025-01-17 | 2025 SE Ralph Crocker Classicvenue |
| 100 Backstroke | SCY | 1:04.16 | BB+0.27s to A·+3.37s to Sectionals | 2025-01-19 | 2025 SE Ralph Crocker Classicvenue |
| 100 Breaststroke | SCY | 1:21.57 | B+2.08s to BB·+10.68s to Sectionals | 2025-10-04 | GA 2025 Pentathlonslow pool |
| 50 Butterfly | SCY | 26.39 | AAA+0.30s to AAAA·Sectionals ✓+0.70s to Futures | 2025-01-17 | 2025 SE Ralph Crocker Classicvenue |
| 100 Butterfly | SCY | 1:00.07 | AA+1.88s to AAA·+0.98s to Sectionals | 2025-12-05 | 2025 GA SC Senior State Championships - copievenue |
| 200 Butterfly | SCY | 2:19.44 | A+3.85s to AA·+7.25s to Sectionals | 2025-12-06 | 2025 GA SC Senior State Championships - copievenue |
| 100 Individual Medley | SCY | 1:07.24 | 2025-10-04 | GA 2025 Pentathlonslow pool | |
| 50 Freestyle | LCM | 29.88 | A+0.19s to AA·+1.49s to Sectionals | 2024-06-30 | 2024 BSS TYR June Classicvenue |
| 100 Freestyle | LCM | 1:03.88 | AA+2.39s to AAA·+2.59s to Sectionals | 2024-07-28 | Georgia LC Senior State Championships 2024venue |
| 200 Freestyle | LCM | 2:19.19 | AA+6.10s to AAA·+7.10s to Sectionals | 2024-07-26 | Georgia LC Senior State Championships 2024venue |
| 100 Backstroke | LCM | 1:17.93 | BB+3.34s to A·+8.14s to Sectionals | 2024-06-30 | 2024 BSS TYR June Classicvenue |
| 50 Butterfly | LCM | 30.93 | AA+0.34s to AAA·Sectionals ✓+1.44s to Futures | 2024-07-28 | Georgia LC Senior State Championships 2024venue |
| 100 Butterfly | LCM | 1:12.63 | BB+0.34s to A·+5.24s to Sectionals | 2024-07-26 | Georgia LC Senior State Championships 2024venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 | 25.35 | flying | 200 Free Relay (leg 4) | 2025-12-05 | 2025 GA SC Senior State Championships - copie |
| 100 Freestyle | SCY | 54.61 | flying | 400 Free Relay (leg 3) | 2025-12-06 | 2025 GA SC Senior State Championships - copie |
| 200 Freestyle | SCY | 1:59.84 | flying | 800 Free Relay (leg 2) | 2025-12-05 | 2025 GA SC Senior State Championships - copie |
| 50 Butterfly | SCY | 27.43 | flying | 200 Medley Relay (leg 3) | 2025-12-06 | 2025 GA SC Senior State Championships - copie |
| 100 Butterfly | SCY | 1:02.04 | flying | 400 Medley Relay (leg 3) | 2025-12-07 | 2025 GA SC Senior State Championships - copie |
| 50 Freestyle | LCM | 29.60 | flat | 200 Free Relay | 2024-07-26 | Georgia LC Senior State Championships 2024 |
| 100 Freestyle | LCM | 1:02.68 | flat | 400 Free Relay | 2024-07-27 | Georgia LC Senior State Championships 2024 |
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 17-18 · SCY
1396 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:30.91 | 725 |
| 200 FL SCY | 2:19.44 | 671 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 IM SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
2733 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:56.25 | 856 |
| 100 BK SCY | 1:04.16 | 629 |
| 100 BR SCY | 1:21.57 | 473 |
| 100 FL SCY | 1:00.07 | 775 |
| 200 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 54.22
Front half 26.10s · back half 28.12s
200 Freestyle SCY 1:56.25
Front half 56.00s · back half 60.25s
500 Freestyle SCY 5:30.91
Front half 159.73s · back half 171.18s
100 Backstroke SCY 1:04.16
Front half 30.78s · back half 33.38s
100 Breaststroke SCY 1:21.57
Front half 38.26s · back half 43.31s
100 Butterfly SCY 1:00.07
Front half 27.23s · back half 32.84s
200 Butterfly SCY 2:19.44
Front half 64.09s · back half 75.35s
100 Individual Medley SCY 1:07.24
Front half 29.86s · back half 37.38s
100 Freestyle LCM 1:03.88
Front half 30.62s · back half 33.26s
200 Freestyle LCM 2:19.19
Front half 66.47s · back half 72.72s
100 Butterfly LCM 1:12.63
Front half 34.06s · back half 38.57s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.