Liam McMahon
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.16 | A+0.07s to AA·+0.77s to Sectionals | 2024-02-24 | SW District Champs 9 & Overvenue |
| 100 Freestyle | SCY | 50.49 | A+0.10s to AA·+2.00s to Sectionals | 2025-09-20 | 2025 Friendly City Kickoffvenue |
| 200 Freestyle | SCY | 1:45.89 | AAA+4.40s to AAAA·Sectionals ✓+4.30s to Futures | 2026-02-27 | 2026 SW District Champs 9 & Overvenue |
| 500 Freestyle | SCY | 5:36.38 | BB+21.49s to A·+48.99s to Sectionals | 2022-01-01 | Cavalier Aquatics Winter Invitational |
| 1000 Freestyle | SCY | 10:41.60 | A+9.61s to AA·+42.11s to Sectionals | 2023-03-09 | 2023 Virginia Swimming SC Age Group Championsvenue |
| 50 Backstroke | SCY | 27.01 | BB+0.22s to A·+3.32s to Futures | 2025-09-28 | 2025 SwimRVA Blastoff Meetvenue |
| 100 Backstroke | SCY | 54.31 | AA+1.82s to AAA·Sectionals ✓+2.82s to Futures | 2025-03-29 | 2025 EZ Reg 2 SC Speedo Champ Seriesvenue |
| 200 Backstroke | SCY | 2:00.20 | A+0.21s to AA·+1.61s to Sectionals | 2024-03-01 | 2024 VSI SC Senior Championshipsvenue |
| 50 Breaststroke | SCY | 27.68 | AAA+0.69s to AAAA·+1.39s to Futures | 2026-03-29 | 2026 EZ SCY Sectional Meetvenue |
| 100 Breaststroke | SCY | 59.03 | AAA+2.34s to AAAA·Sectionals ✓+1.04s to Futures | 2026-03-06 | 2026 VSI SC Senior Championshipsvenue |
| 200 Breaststroke | SCY | 2:06.60 | AAA+3.41s to AAAA·Futures ✓+5.01s to Winter JNs | 2026-03-07 | 2026 VSI SC Senior Championshipsvenue |
| 100 Butterfly | SCY | 54.31 | A+0.02s to AA·+1.12s to Sectionals | 2025-09-20 | 2025 Friendly City Kickoffvenue |
| 100 Individual Medley | SCY | 56.23 | 2025-09-28 | 2025 SwimRVA Blastoff Meetvenue | |
| 200 Individual Medley | SCY | 1:54.24 | AAA+2.05s to AAAA·Sectionals ✓+0.35s to Futures | 2026-03-08 | 2026 VSI SC Senior Championshipsvenue |
| 400 Individual Medley | SCY | 4:04.59 | AAA+3.10s to AAAA·Futures ✓+8.10s to Winter JNs | 2026-03-06 | 2026 VSI SC Senior Championshipsvenue |
| 50 Freestyle | LCM | 25.90 | AA+0.41s to AAA·+0.41s to Sectionals | 2026-07-11 | 2026 VA LC Senior Champsfast pool |
| 100 Freestyle | LCM | 55.99 | AA+0.40s to AAA·+0.50s to Sectionals | 2026-06-14 | NOVA 2026 Virginia Commonwealth Gamesvenue |
| 200 Freestyle | LCM | 2:06.10 | AA+3.91s to AAA·+4.81s to Sectionals | 2026-06-13 | NOVA 2026 Virginia Commonwealth Gamesvenue |
| 400 Freestyle | LCM | 4:44.28 | A+11.89s to AA·+26.69s to Sectionals | 2023-07-09 | 2023 CCA Summer Awardsvenue |
| 50 Backstroke | LCM | 30.34 | AA+0.95s to AAA·+2.45s to Futures | 2026-05-02 | 2026 HOKI May Day Invite - copiedvenue |
| 100 Backstroke | LCM | 1:03.00 | AA+1.11s to AAA·+1.01s to Sectionals | 2024-06-01 | 2024 Virginia Commonwealth Gamesvenue |
| 200 Backstroke | LCM | 2:19.12 | AA+4.33s to AAA·+4.33s to Sectionals | 2024-06-02 | 2024 Virginia Commonwealth Gamesvenue |
| 50 Breaststroke | LCM | 31.90 | AAA+1.21s to AAAA·+1.01s to Futures | 2026-07-10 | 2026 VA LC Senior Champsfast pool |
| 100 Breaststroke | LCM | 1:08.30 | AAA+2.21s to AAAA·Sectionals ✓+0.11s to Futures | 2026-07-09 | 2026 VA LC Senior Champsfast pool |
| 200 Breaststroke | LCM | 2:30.31 | AAA+6.12s to AAAA·Sectionals ✓+1.22s to Futures | 2026-07-12 | 2026 VA LC Senior Champsfast pool |
| 100 Butterfly | LCM | 1:03.94 | A+1.55s to AA·+3.75s to Sectionals | 2026-06-14 | NOVA 2026 Virginia Commonwealth Gamesvenue |
| 200 Individual Medley | LCM | 2:12.37 | AAA+2.38s to AAAA·Futures ✓+3.08s to Winter JNs | 2026-07-09 | 2026 VA LC Senior Champsfast pool |
| 400 Individual Medley | LCM | 4:51.31 | AAA+12.22s to AAAA·+1.42s to Sectionals | 2026-07-10 | 2026 VA LC Senior Champsfast pool |
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 | 22.88 | flying | 200 Medley Relay (leg 4) | 2024-03-01 | 2024 VSI SC Senior Championships |
| 50 Freestyle | SCY | 21.91 | flying | 200 Free Relay (leg 4) | 2026-03-06 | 2026 VSI SC Senior Championships |
| 100 Freestyle | SCY | 54.23 | flying | 400 Free Relay (leg 4) | 2023-02-24 | SW District Champs 9 & Over |
| 100 Backstroke | SCY | 1:01.00 | flat | 400 Medley Relay | 2024-02-24 | SW District Champs 9 & Over |
| 100 Breaststroke | SCY | 1:07.96 | flying | 400 Medley Relay (leg 2) | 2022-12-09 | 2022 11th HOKI Swim and Tri Winter Champs |
| 50 Butterfly | SCY | 23.53 | flying | 200 Medley Relay (leg 3) | 2026-03-07 | 2026 VSI SC Senior Championships |
| 100 Butterfly | SCY | 1:04.36 | flying | 400 Medley Relay (leg 3) | 2023-02-25 | SW District Champs 9 & Over |
| 50 Backstroke | LCM | 32.58 | flat | 200 Medley Relay | 2023-07-09 | 2023 CCA Summer Awards |
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 · LCM
4010 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:44.28 | 639 |
| 200 BK LCM | 2:19.12 | 758 |
| 200 BR LCM | 2:30.31 | 841 |
| 200 IM LCM | 2:12.37 | 925 |
| 400 IM LCM | 4:51.31 | 847 |
| 200 FL LCM | — | 0 |
IMR 17-18 · SCY
4074 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:45.89 | 847 |
| 100 BK SCY | 54.31 | 729 |
| 100 BR SCY | 59.03 | 853 |
| 100 FL SCY | 54.31 | 738 |
| 200 IM SCY | 1:54.24 | 907 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 50.49
Front half 24.63s · back half 25.86s
200 Freestyle SCY 1:45.89 RT 0.64s
Front half 50.62s · back half 55.27s
1000 Freestyle SCY 10:41.60
Front half 316.45s · back half 325.15s
100 Backstroke SCY 54.31
Front half 26.78s · back half 27.53s
200 Backstroke SCY 2:00.20
Front half 58.97s · back half 61.23s
100 Breaststroke SCY 59.03
Front half 27.97s · back half 31.06s
200 Breaststroke SCY 2:06.60
Front half 61.17s · back half 65.43s
100 Butterfly SCY 54.31
Front half 25.53s · back half 28.78s
100 Individual Medley SCY 56.23
Front half 25.99s · back half 30.24s
200 Individual Medley SCY 1:54.24
Front half 56.02s · back half 58.22s
400 Individual Medley SCY 4:04.59
Front half 119.86s · back half 124.73s
100 Freestyle LCM 55.99
Front half 27.21s · back half 28.78s
200 Freestyle LCM 2:06.10
Front half 60.57s · back half 65.53s
400 Freestyle LCM 4:44.28
Front half 138.09s · back half 146.19s
100 Backstroke LCM 1:03.00 RT 0.68s
Front half 30.50s · back half 32.50s
200 Backstroke LCM 2:19.12 RT 0.70s
Front half 67.64s · back half 71.48s
100 Breaststroke LCM 1:08.30
Front half 32.40s · back half 35.90s
200 Breaststroke LCM 2:30.31
Front half 71.78s · back half 78.53s
100 Butterfly LCM 1:03.94
Front half 29.67s · back half 34.27s
200 Individual Medley LCM 2:12.37
Front half 64.64s · back half 67.73s
400 Individual Medley LCM 4:51.31
Front half 142.10s · back half 149.21s
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.