Zach Larson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.64 | AA+0.25s to AAA·+1.45s to Sectionals | 2025-01-01 | 2025 CO CSI Pioneer Open |
| 100 Freestyle | SCY | 54.68 | AA+1.59s to AAA·+3.69s to Sectionals | 2025-01-01 | 2025 CO CSI Pioneer Open |
| 200 Freestyle | SCY | 2:00.57 | AA+4.48s to AAA·+8.78s to Sectionals | 2026-02-15 | 2026 CO ACES Winter Openvenue |
| 500 Freestyle | SCY | 5:38.40 | A+10.91s to AA·+35.71s to Sectionals | 2025-01-01 | Colorado Swimming Championship Meet |
| 1650 Freestyle | SCY | 21:48.52 | B+20.13s to BB·+251.63s to Sectionals | 2024-12-28 | 2024 CO DSA Alonzo Nevares Brute Squadvenue |
| 50 Backstroke | SCY | 32.33 | BB+1.94s to A·+8.64s to Futures | 2025-01-26 | 2025 CO TOPS Colorado Openvenue |
| 100 Backstroke | SCY | 1:00.57 | AA+2.08s to AAA·+5.08s to Sectionals | 2026-01-25 | 2026 CO TOPS Colorado Openvenue |
| 200 Backstroke | SCY | 2:13.61 | A+0.42s to AA·+12.32s to Sectionals | 2026-03-01 | 2026 CO CSI SC Age Group Championshipsfast pool |
| 50 Breaststroke | SCY | 33.03 | AA+1.24s to AAA·+6.74s to Futures | 2025-01-01 | 2025 CO ACES Fall High Point Invite |
| 100 Breaststroke | SCY | 1:08.93 | AA+2.64s to AAA·+5.74s to Sectionals | 2026-02-28 | 2026 CO CSI SC Age Group Championshipsfast pool |
| 200 Breaststroke | SCY | 2:27.13 | AA+3.34s to AAA·+9.84s to Sectionals | 2026-02-27 | 2026 CO CSI SC Age Group Championshipsfast pool |
| 50 Butterfly | SCY | 28.31 | AA+1.02s to AAA·+5.42s to Futures | 2025-01-01 | 2025 CO ACES Fall High Point Invite |
| 100 Butterfly | SCY | 1:09.51 | B+1.02s to BB·+14.32s to Sectionals | 2025-01-01 | Colorado Swimming Championship Meet |
| 200 Butterfly | SCY | 2:57.91 | +12.62s to B·+54.52s to Sectionals | 2024-12-28 | 2024 CO DSA Alonzo Nevares Brute Squadvenue |
| 100 Individual Medley | SCY | 55.76 | 2025-01-01 | 2025 CO CUDA Pentathlon XXXVIII | |
| 200 Individual Medley | SCY | 2:13.88 | AA+4.49s to AAA·+9.89s to Sectionals | 2026-02-27 | 2026 CO CSI SC Age Group Championshipsfast pool |
| 400 Individual Medley | SCY | 4:59.60 | A+9.81s to AA·+34.91s to Sectionals | 2025-01-01 | 2025 CO ACES Fall High Point Invite |
| 50 Freestyle | LCM | 27.41 | AAA+0.62s to AAAA·+0.42s to Sectionals | 2025-05-17 | 2025 CO Hilltopper Invitevenue |
| 100 Freestyle | LCM | 1:01.04 | AAA+2.35s to AAAA·+2.05s to Sectionals | 2026-06-26 | 2026 CO Zone 2 District Meet--DUvenue |
| 200 Freestyle | LCM | 2:26.43 | BB+0.74s to A·+17.74s to Sectionals | 2026-06-27 | 2026 CO Zone 2 District Meet--DUvenue |
| 400 Freestyle | LCM | 5:19.83 | BB+11.34s to A·+45.44s to Sectionals | 2025-06-06 | 2025 CO NJ Summer Solstice Invitationalfast pool |
| 50 Backstroke | LCM | 33.43 | AA+1.04s to AAA·+5.54s to Futures | 2026-07-17 | 2026 CO CSI Senior LCM State Championshipsvenue |
| 100 Backstroke | LCM | 1:14.06 | A+2.27s to AA·+8.87s to Sectionals | 2026-06-26 | 2026 CO Zone 2 District Meet--DUvenue |
| 200 Backstroke | LCM | 2:40.71 | A+4.82s to AA·+19.22s to Sectionals | 2026-05-16 | 2026 CO Hilltopper Invitevenue |
| 50 Breaststroke | LCM | 36.07 | AAA+1.58s to AAAA·+5.18s to Futures | 2026-05-16 | 2026 CO Hilltopper Invitevenue |
| 100 Breaststroke | LCM | 1:19.77 | AA+3.38s to AAA·+6.07s to Sectionals | 2026-07-17 | 2026 CO CSI Senior LCM State Championshipsvenue |
| 200 Breaststroke | LCM | 2:54.40 | AA+6.71s to AAA·+13.52s to Sectionals | 2026-06-26 | 2026 CO Zone 2 District Meet--DUvenue |
| 50 Butterfly | LCM | 32.38 | A+0.29s to AA·+6.09s to Futures | 2025-07-13 | 2025 CO ACES/DSA Summer Blast Last Chancevenue |
| 100 Butterfly | LCM | 1:47.36 | +23.27s to B·+44.27s to Sectionals | 2023-04-16 | 2023 CO FST LC Spring Feverslow pool |
| 200 Individual Medley | LCM | 2:36.62 | A+0.23s to AA·+11.93s to Sectionals | 2026-06-27 | 2026 CO Zone 2 District Meet--DUvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 27.24 | flat | 200 Free Relay | 2024-12-07 | 2024 CO CSI Pioneer Open |
| 50 Freestyle | SCY | 24.91 | flying | 200 Free Relay (leg 4) | 2025-03-02 | 2025 CO CSI 14&U Age Group Championships |
| 100 Freestyle | SCY | 54.03 | flat | 400 Free Relay | 2026-03-01 | 2026 CO CSI SC Age Group Championships |
| 100 Freestyle | SCY | 52.63 | flying | 400 Medley Relay (leg 4) | 2026-02-28 | 2026 CO CSI SC Age Group Championships |
| 100 Freestyle | SCY | 54.58 | flying | 400 Free Relay (leg 4) | 2026-01-25 | 2026 CO TOPS Colorado Open |
| 50 Breaststroke | SCY | 31.93 | flying | 200 Medley Relay (leg 2) | 2025-03-01 | 2025 CO CSI 14&U Age Group Championships |
| 50 Freestyle | LCM | 28.93 | flat | 200 Free Relay | 2025-08-06 | 2025 Western Zone Age Group Championships |
| 50 Freestyle | LCM | 28.67 | flying | 200 Medley Relay (leg 4) | 2025-08-07 | 2025 Western Zone Age Group Championships |
| 50 Freestyle | LCM | 28.44 | flying | 200 Free Relay (leg 4) | 2025-07-27 | 2025 CO CSI Age Group Championships |
| 100 Freestyle | LCM | 1:00.78 | flying | 400 Medley Relay (leg 4) | 2026-07-16 | 2026 CO CSI Senior LCM State Championships |
| 100 Freestyle | LCM | 1:00.48 | flying | 400 Free Relay (leg 2) | 2026-07-16 | 2026 CO CSI Senior LCM State Championships |
| 50 Breaststroke | LCM | 37.96 | flying | 200 Medley Relay (leg 2) | 2024-07-27 | 2024 CO CSI LC Age Group Championships |
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
3571 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:38.40 | 624 |
| 200 BK SCY | 2:13.61 | 654 |
| 200 BR SCY | 2:27.13 | 708 |
| 200 FL SCY | 2:57.91 | 288 |
| 200 IM SCY | 2:13.88 | 693 |
| 400 IM SCY | 4:59.60 | 604 |
IMR 13-14 · SCY
3189 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:00.57 | 696 |
| 100 BK SCY | 1:00.57 | 688 |
| 100 BR SCY | 1:08.93 | 672 |
| 100 FL SCY | 1:09.51 | 440 |
| 200 IM SCY | 2:13.88 | 693 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:00.57
Front half 58.00s · back half 62.57s
1650 Freestyle SCY 21:48.52
50 Backstroke SCY 32.33
Front half 16.22s · back half 16.11s
100 Backstroke SCY 1:00.57
Front half 29.99s · back half 30.58s
200 Backstroke SCY 2:13.61
Front half 65.00s · back half 68.61s
100 Breaststroke SCY 1:08.93
Front half 32.65s · back half 36.28s
200 Breaststroke SCY 2:27.13
Front half 69.15s · back half 77.98s
200 Butterfly SCY 2:57.91
200 Individual Medley SCY 2:13.88
Front half 64.60s · back half 69.28s
100 Freestyle LCM 1:01.04
Front half 28.96s · back half 32.08s
200 Freestyle LCM 2:26.43
Front half 69.35s · back half 77.08s
400 Freestyle LCM 5:19.83
Front half 155.93s · back half 163.90s
100 Backstroke LCM 1:14.06
Front half 35.28s · back half 38.78s
200 Backstroke LCM 2:40.71
Front half 78.56s · back half 82.15s
100 Breaststroke LCM 1:19.77
Front half 37.29s · back half 42.48s
200 Breaststroke LCM 2:54.40
Front half 84.52s · back half 89.88s
100 Butterfly LCM 1:47.36
Front half 48.99s · back half 58.37s
200 Individual Medley LCM 2:36.62
Front half 73.99s · back half 82.63s
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.