swimJonathan Hlavinka
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.04 | AA+0.95s to AAA | 2025-03-15 | 2025 OSI Arena Senior SC Championships venue |
| 100 Freestyle | SCY | 48.81 | AA+0.52s to AAA | 2026-03-08 | 2026 Northwest Regional YMCA Championships venue |
| 200 Freestyle | SCY | 1:46.31 | AAA+4.82s to AAAA | 2026-03-07 | 2026 Northwest Regional YMCA Championships venue |
| 500 Freestyle | SCY | 4:59.91 | AA+11.32s to AAA | 2025-11-15 | 2025 CGAL FALL Open - copied venue |
| 50 Backstroke | SCY | 24.95 | AA+0.36s to AAA | 2025-12-05 | 2025 Oregon Sr. Open venue |
| 100 Backstroke | SCY | 53.02 | AA+0.53s to AAA | 2026-04-01 | 2026 YMCA Short Course Nationals fast pool |
| 200 Backstroke | SCY | 1:54.28 | AAA+4.69s to AAAA | 2026-03-31 | 2026 YMCA Short Course Nationals fast pool |
| 50 Breaststroke | SCY | 30.67 | A+1.08s to AA | 2025-03-07 | 2025 Northwest Region YMCA Championships |
| 100 Breaststroke | SCY | 1:05.86 | BB+1.17s to A | 2025-12-05 | 2025 Oregon Sr. Open venue |
| 200 Breaststroke | SCY | 2:19.90 | A+5.01s to AA | 2026-03-07 | 2026 Northwest Regional YMCA Championships venue |
| 50 Butterfly | SCY | 24.54 | AA+0.05s to AAA | 2026-03-08 | 2026 Northwest Regional YMCA Championships venue |
| 100 Butterfly | SCY | 52.21 | AA+0.22s to AAA | 2026-02-20 | 2026 OSAA 6A Championships venue |
| 200 Butterfly | SCY | 2:12.69 | BB+5.20s to A | 2025-04-26 | 2025 April Showers venue |
| 200 Individual Medley | SCY | 1:59.24 | AA+1.75s to AAA | 2026-04-02 | 2026 YMCA SCY Time Trials venue |
| 50 Freestyle | LCM | 26.88 | A+0.19s to AA | 2025-06-14 | 2025 Mike Morris Memorial Invitational venue |
| 100 Freestyle | LCM | 57.22 | AA+1.63s to AAA | 2024-07-31 | WZ LCM Senior Champs 2024 venue |
| 200 Freestyle | LCM | 2:07.29 | AA+5.10s to AAA | 2025-06-13 | 2025 Mike Morris Memorial Invitational venue |
| 50 Backstroke | LCM | 30.71 | A+0.02s to AA | 2026-06-13 | 2026 Mike Morris Memorial Invitational - copi venue |
| 100 Backstroke | LCM | 1:05.85 | A+1.16s to AA | 2024-08-02 | WZ LCM Senior Champs 2024 venue |
| 200 Backstroke | LCM | 2:20.35 | AA+5.56s to AAA | 2026-06-13 | 2026 Mike Morris Memorial Invitational - copi venue |
| 50 Butterfly | LCM | 28.82 | AA+1.13s to AAA | 2026-06-14 | 2026 Mike Morris Memorial Invitational - copi venue |
| 100 Butterfly | LCM | 1:03.77 | A+1.38s to AA | 2025-05-04 | 2025 AAA May LC Invitational venue |
| 200 Butterfly | LCM | 2:30.91 | BB+5.52s to A | 2025-06-15 | 2025 Mike Morris Memorial Invitational venue |
| 200 Individual Medley | LCM | 2:25.66 | A+3.27s to AA | 2024-08-03 | GroupA - WZ LCM Senior Champs 2024 venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 23.71 | flat | 200 Free Relay | 2025-01-18 | Rumbaugh 2025 |
| 50 Freestyle | SCY | 22.15 | flying | 200 Free Relay (leg 4) | 2026-02-14 | 2026 OR HS 6A-4 |
| 50 Backstroke | SCY | 24.89 | flat | 200 Medley Relay | 2026-02-14 | 2026 OR HS 6A-4 |
| 50 Breaststroke | SCY | 36.55 | flying | 200 Medley Relay (leg 2) | 2024-11-10 | SCAT Open |
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
3611 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:59.91 | 749 |
| 200 BK SCY | 1:54.28 | 841 |
| 200 BR SCY | 2:19.90 | 658 |
| 200 FL SCY | 2:12.69 | 566 |
| 200 IM SCY | 1:59.24 | 797 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
3863 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:46.31 | 837 |
| 100 BK SCY | 53.02 | 784 |
| 100 BR SCY | 1:05.86 | 614 |
| 100 FL SCY | 52.21 | 831 |
| 200 IM SCY | 1:59.24 | 797 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 48.81
Front half 23.91s · back half 24.90s
200 Freestyle SCY 1:46.31
Front half 51.80s · back half 54.51s
500 Freestyle SCY 4:59.91
Front half 152.56s · back half 147.35s
100 Backstroke SCY 53.02 RT 0.70s
Front half 25.86s · back half 27.16s
200 Backstroke SCY 1:54.28 RT 0.75s
Front half 55.94s · back half 58.34s
100 Breaststroke SCY 1:05.86
Front half 31.36s · back half 34.50s
200 Breaststroke SCY 2:19.90
Front half 67.60s · back half 72.30s
100 Butterfly SCY 52.21
Front half 24.52s · back half 27.69s
200 Butterfly SCY 2:12.69
Front half 62.25s · back half 70.44s
200 Individual Medley SCY 1:59.24 RT 0.65s
Front half 54.87s · back half 64.37s
100 Freestyle LCM 57.22
Front half 27.81s · back half 29.41s
200 Freestyle LCM 2:07.29
Front half 61.81s · back half 65.48s
100 Backstroke LCM 1:05.85
Front half 32.10s · back half 33.75s
200 Backstroke LCM 2:20.35
Front half 68.47s · back half 71.88s
100 Butterfly LCM 1:03.77
Front half 29.23s · back half 34.54s
200 Butterfly LCM 2:30.91
Front half 70.23s · back half 80.68s
200 Individual Medley LCM 2:25.66
Front half 68.26s · back half 77.40s
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.
Progression
Faster times are higher. One card per event, all courses & history.