swimJonathan Byambadorj
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.60 | BB+0.01s to A·+2.41s to Sectionals | 2026-10-31 | TORR Spooky Splashfast pool |
| 100 Freestyle | SCY | 55.22 | A+1.73s to AA·+4.23s to Sectionals | 2026-11-01 | TORR Spooky Splashfast pool |
| 200 Freestyle | SCY | 1:57.19 | A+0.10s to AA·+5.40s to Sectionals | 2026-10-31 | TORR Spooky Splashfast pool |
| 500 Freestyle | SCY | 5:22.86 | A+5.77s to AA·+20.17s to Sectionals | 2026-09-19 | 2026 TSM Aquatics Season Opener - entriesvenue |
| 50 Backstroke | SCY | 29.32 | BB+0.43s to A·+5.63s to Futures | 2026-02-28 | 2026 Pacific Committee SC Chmpionshipvenue |
| 100 Backstroke | SCY | 1:02.77 | BB+1.58s to A·+7.28s to Sectionals | 2026-09-20 | 2026 TSM Aquatics Season Opener - entriesvenue |
| 50 Breaststroke | SCY | 34.19 | BB+1.10s to A·+7.90s to Futures | 2026-10-31 | TORR Spooky Splashfast pool |
| 100 Butterfly | SCY | 1:05.86 | B+0.37s to BB·+10.67s to Sectionals | 2026-02-22 | 2026 CA SPAR Pacific Committee FINALEvenue |
| 200 Individual Medley | SCY | 2:17.66 | BB+2.27s to A·+13.67s to Sectionals | 2026-11-01 | TORR Spooky Splashfast pool |
| 400 Individual Medley | SCY | 4:50.50 | BB+1.01s to A·+25.81s to Sectionals | 2026-09-20 | 2026 TSM Aquatics Season Opener - entriesvenue |
| 50 Freestyle | LCM | 28.82 | A+0.63s to AA·+1.83s to Sectionals | 2026-06-07 | 2026 BCA June LC Meetvenue |
| 100 Freestyle | LCM | 1:02.07 | A+0.38s to AA·+3.08s to Sectionals | 2026-06-06 | 2026 BCA June LC Meetvenue |
| 200 Freestyle | LCM | 2:16.23 | A+1.54s to AA·+7.54s to Sectionals | 2026-07-24 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 400 Freestyle | LCM | 4:52.00 | A+4.51s to AA·+17.61s to Sectionals | 2026-05-03 | 2026 TORR May Spring Splashvenue |
| 800 Freestyle | LCM | 9:58.77 | A+3.28s to AA·+28.78s to Sectionals | 2026-07-12 | 2026 Summer Pacific Champs @BLAST - copied -venue |
| 50 Backstroke | LCM | 32.64 | A+0.15s to AA·+4.75s to Futures | 2026-06-06 | 2026 BCA June LC Meetvenue |
| 100 Backstroke | LCM | 1:12.13 | BB+0.44s to A·+6.94s to Sectionals | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 200 Backstroke | LCM | 2:43.06 | BB+7.07s to A·+21.57s to Sectionals | 2026-05-17 | 2026 SGAC May LC Meetvenue |
| 50 Breaststroke | LCM | 41.51 | B+0.52s to BB·+10.62s to Futures | 2026-05-17 | 2026 SGAC May LC Meetvenue |
| 50 Butterfly | LCM | 32.49 | BB+0.50s to A·+6.20s to Futures | 2026-06-06 | 2026 BCA June LC Meetvenue |
| 100 Butterfly | LCM | 1:12.48 | BB+3.59s to A·+9.39s to Sectionals | 2026-07-11 | 2026 Summer Pacific Champs @BLAST - copied -venue |
| 200 Individual Medley | LCM | 2:49.41 | BB+12.52s to A·+24.72s to Sectionals | 2026-03-29 | 2026 SGAC March LC Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 25.83 | flat | 200 Free Relay | 2024-12-14 | 2024 CA SCAT/SCS WAG |
| 50 Freestyle | SCY | 27.72 | flying | 200 Medley Relay (leg 4) | 2024-12-14 | 2024 CA SCAT/SCS WAG |
| 100 Freestyle | SCY | 57.43 | flying | 400 Free Relay (leg 3) | 2026-03-01 | 2026 Pacific Committee SC Chmpionship |
| 100 Freestyle | SCY | 1:04.52 | flying | 400 Medley Relay (leg 4) | 2024-12-15 | 2024 CA SCAT/SCS WAG |
| 50 Backstroke | SCY | 31.26 | flat | 200 Medley Relay | 2025-12-14 | 2025 CA SCS/RAA WAG |
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
2018 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:22.86 | 719 |
| 200 IM SCY | 2:17.66 | 637 |
| 400 IM SCY | 4:50.50 | 662 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 13-14 · SCY
2530 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:57.19 | 758 |
| 100 BK SCY | 1:02.77 | 618 |
| 100 FL SCY | 1:05.86 | 517 |
| 200 IM SCY | 2:17.66 | 637 |
| 100 BR 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 55.22
Front half 26.99s · back half 28.23s
200 Freestyle SCY 1:57.19
Front half 57.24s · back half 59.95s
500 Freestyle SCY 5:22.86
Front half 156.50s · back half 166.36s
100 Backstroke SCY 1:02.77
Front half 30.87s · back half 31.90s
100 Butterfly SCY 1:05.86
Front half 30.04s · back half 35.82s
200 Individual Medley SCY 2:17.66
Front half 63.54s · back half 74.12s
400 Individual Medley SCY 4:50.50
Front half 139.54s · back half 150.96s
200 Freestyle LCM 2:16.23 RT 0.52s
Front half 65.29s · back half 70.94s
400 Freestyle LCM 4:52.00
Front half 145.77s · back half 146.23s
800 Freestyle LCM 9:58.77
Front half 303.21s · back half 295.56s
200 Backstroke LCM 2:43.06
Front half 81.05s · back half 82.01s
200 Individual Medley LCM 2:49.41
Front half 77.64s · back half 91.77s
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.