Sienna Lam
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.17 | BB+1.78s to A·+4.28s to Sectionals | 2025-03-08 | 2025 MD LSC 14 & U Championshipsvenue |
| 100 Freestyle | SCY | 1:01.82 | BB+2.33s to A·+7.73s to Sectionals | 2025-03-09 | 2025 MD LSC 14 & U Championshipsvenue |
| 500 Freestyle | SCY | 7:00.06 | +17.47s to B·+110.17s to Sectionals | 2024-01-20 | 2024 CBAC Winter Wake-Up Meet |
| 1650 Freestyle | SCY | 21:46.22 | B+3.13s to BB·+220.93s to Sectionals | 2024-11-08 | 2024 CAC 4th Annual Zach Spain B&Slower Meetvenue |
| 50 Backstroke | SCY | 33.96 | B+1.17s to BB·+5.37s to Sectionals | 2025-02-09 | 2025 Last Chance Qualifyingvenue |
| 100 Backstroke | SCY | 1:13.14 | B+3.55s to BB·+12.35s to Sectionals | 2024-11-10 | 2024 CAC 4th Annual Zach Spain B&Slower Meetvenue |
| 200 Backstroke | SCY | 2:37.89 | B+7.00s to BB·+24.60s to Sectionals | 2024-11-09 | 2024 CAC 4th Annual Zach Spain B&Slower Meetvenue |
| 50 Breaststroke | SCY | 34.19 | A+0.30s to AA·+0.60s to Sectionals | 2025-02-09 | 2025 Last Chance Qualifyingvenue |
| 100 Breaststroke | SCY | 1:14.77 | BB+0.58s to A·+3.88s to Sectionals | 2026-10-28 | 2026 FHSAA 4A Region 4fast pool |
| 200 Breaststroke | SCY | 2:58.42 | B+4.33s to BB·+22.13s to Sectionals | 2024-02-11 | 2024 CAC Last Chance Qualifyingvenue |
| 50 Butterfly | SCY | 30.20 | BB+0.11s to A·+2.81s to Sectionals | 2025-03-08 | 2025 MD LSC 14 & U Championshipsvenue |
| 100 Butterfly | SCY | 1:10.35 | B+0.96s to BB·+11.26s to Sectionals | 2025-03-07 | 2025 MD LSC 14 & U Championshipsvenue |
| 100 Individual Medley | SCY | 1:08.99 | 2025-02-09 | 2025 Last Chance Qualifyingvenue | |
| 200 Individual Medley | SCY | 2:44.46 | B+9.07s to BB·+31.87s to Sectionals | 2024-02-10 | 2024 CAC Last Chance Qualifyingvenue |
| 400 Individual Medley | SCY | 6:02.78 | +4.59s to B·+84.09s to Sectionals | 2024-01-20 | 2024 CBAC Winter Wake-Up Meet |
| 50 Freestyle | LCM | 33.46 | BB+2.27s to A·+5.07s to Sectionals | 2025-04-05 | 2025 CAC Spring "Swimming to the 80s" LCM Swvenue |
| 100 Freestyle | LCM | 1:14.08 | B+1.19s to BB·+12.79s to Sectionals | 2024-06-15 | 2024 CAC Summer Out of School LCM Swim Meetvenue |
| 50 Backstroke | LCM | 38.61 | B+0.22s to BB·+5.72s to Sectionals | 2024-04-06 | 2024 CAC Spring LCM Swim Meetvenue |
| 100 Backstroke | LCM | 1:22.77 | B+1.58s to BB·+12.98s to Sectionals | 2024-06-15 | 2024 CAC Summer Out of School LCM Swim Meetvenue |
| 200 Backstroke | LCM | 3:04.18 | B+9.69s to BB·+32.19s to Sectionals | 2025-04-04 | 2025 CAC Spring "Swimming to the 80s" LCM Swvenue |
| 50 Breaststroke | LCM | 40.05 | A+1.56s to AA·+1.76s to Sectionals | 2024-06-15 | 2024 CAC Summer Out of School LCM Swim Meetvenue |
| 100 Breaststroke | LCM | 1:27.84 | BB+2.75s to A·+7.25s to Sectionals | 2025-04-05 | 2025 CAC Spring "Swimming to the 80s" LCM Swvenue |
| 200 Breaststroke | LCM | 3:09.51 | BB+7.12s to A·+13.52s to Sectionals | 2024-07-14 | 2024 MD Long Course Last Chance Meetvenue |
| 50 Butterfly | LCM | 34.95 | BB+1.36s to A·+3.66s to Sectionals | 2025-04-05 | 2025 CAC Spring "Swimming to the 80s" LCM Swvenue |
| 200 Individual Medley | LCM | 2:51.87 | BB+7.48s to A·+20.48s to Sectionals | 2024-07-13 | 2024 MD Long Course Last Chance Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 1:09.17 | flying | 400 Free Relay (leg 4) | 2026-10-28 | 2026 FHSAA 4A Region 4 |
| 100 Breaststroke | SCY | 1:17.47 | flying | 400 Medley Relay (leg 2) | 2024-03-10 | 2024 Speedo Maryland Junior Championship - Si |
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
2130 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 7:00.06 | 367 |
| 200 BK SCY | 2:37.89 | 457 |
| 200 BR SCY | 2:58.42 | 477 |
| 200 IM SCY | 2:44.46 | 434 |
| 400 IM SCY | 6:02.78 | 395 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
2024 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:13.14 | 451 |
| 100 BR SCY | 1:14.77 | 641 |
| 100 FL SCY | 1:10.35 | 498 |
| 200 IM SCY | 2:44.46 | 434 |
| 200 FR 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 1:01.82
Front half 29.75s · back half 32.07s
1650 Freestyle SCY 21:46.22
100 Backstroke SCY 1:13.14
Front half 35.76s · back half 37.38s
200 Backstroke SCY 2:37.89
Front half 77.35s · back half 80.54s
100 Breaststroke SCY 1:14.77
Front half 35.16s · back half 39.61s
200 Breaststroke SCY 2:58.42
Front half 83.13s · back half 95.29s
100 Butterfly SCY 1:10.35
Front half 32.49s · back half 37.86s
100 Individual Medley SCY 1:08.99
Front half 33.66s · back half 35.33s
200 Individual Medley SCY 2:44.46
Front half 80.05s · back half 84.41s
100 Freestyle LCM 1:14.08
Front half 37.00s · back half 37.08s
100 Backstroke LCM 1:22.77
Front half 41.73s · back half 41.04s
200 Backstroke LCM 3:04.18
Front half 92.52s · back half 91.66s
100 Breaststroke LCM 1:27.84
Front half 42.60s · back half 45.24s
200 Breaststroke LCM 3:09.51
Front half 90.85s · back half 98.66s
200 Individual Medley LCM 2:51.87
Front half 84.48s · back half 87.39s
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.