swimCosta Kolosov
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 30.33 | 2024-11-24 | 2024 CO HRA SBL Turket Trotfast pool | |
| 50 Freestyle | SCY | 49.57 | +11.28s to B·+26.38s to Sectionals | 2026-10-17 | 2026 CO MACS Fall Invitationalvenue |
| 100 Freestyle | SCY | 1:36.68 | +8.19s to B·+45.69s to Sectionals | 2026-10-18 | 2026 CO MACS Fall Invitationalvenue |
| 25 Backstroke | SCY | 26.50 | 2024-11-24 | 2024 CO HRA SBL Turket Trotfast pool | |
| 50 Backstroke | SCY | 46.65 | B+3.56s to BB·+22.96s to Futures | 2026-10-17 | 2026 CO MACS Fall Invitationalvenue |
| 100 Backstroke | SCY | 1:46.16 | +5.07s to B·+50.67s to Sectionals | 2026-10-18 | 2026 CO MACS Fall Invitationalvenue |
| 50 Breaststroke | SCY | 57.71 | +4.22s to B·+31.42s to Futures | 2026-10-17 | 2026 CO MACS Fall Invitationalvenue |
| 100 Breaststroke | SCY | 1:57.42 | +1.93s to B·+54.23s to Sectionals | 2026-10-18 | 2026 CO MACS Fall Invitationalvenue |
| 50 Freestyle | SCM | 49.89 | +7.50s to B·+24.20s to Sectionals | 2026-06-06 | 2026 CO MACS Suburban League Invitevenue |
| 100 Freestyle | SCM | 2:36.96 | +59.27s to B·+100.67s to Sectionals | 2025-06-07 | 2025 CO MACS Suburban League Invitevenue |
| 50 Backstroke | SCM | 56.17 | +2.58s to B | 2026-06-06 | 2026 CO MACS Suburban League Invitevenue |
| 50 Breaststroke | SCM | 1:12.58 | +13.49s to B | 2026-06-06 | 2026 CO MACS Suburban League Invitevenue |
| 100 Individual Medley | SCM | 2:15.03 | +24.74s to B | 2026-06-06 | 2026 CO MACS Suburban League Invitevenue |
| 50 Freestyle | LCM | 52.58 | +8.69s to B·+25.59s to Sectionals | 2026-05-16 | 2026 CO ACES Spring Invitevenue |
| 100 Freestyle | LCM | 2:08.41 | +27.32s to B·+69.42s to Sectionals | 2026-05-17 | 2026 CO ACES Spring Invitevenue |
| 50 Backstroke | LCM | 58.96 | +3.57s to B·+31.07s to Futures | 2026-04-12 | 2026 CO NJ SBL Pentathlon 12&Ufast pool |
| 100 Backstroke | LCM | 2:12.85 | +16.16s to B·+67.66s to Sectionals | 2026-05-17 | 2026 CO ACES Spring Invitevenue |
| 50 Breaststroke | LCM | 1:15.84 | +14.95s to B·+44.95s to Futures | 2026-04-12 | 2026 CO NJ SBL Pentathlon 12&Ufast pool |
| 100 Breaststroke | LCM | 2:33.22 | +20.13s to B·+79.52s to Sectionals | 2026-05-16 | 2026 CO ACES Spring Invitevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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.
IMX / IMR
IMX 10 & under · SCY
576 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:46.16 | 274 |
| 100 BR SCY | 1:57.42 | 302 |
| 200 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
825 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:36.68 | 247 |
| 50 BK SCY | 46.65 | 328 |
| 50 BR SCY | 57.71 | 250 |
| 50 FL SCY | — | 0 |
| 100 IM 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 1:36.68
Front half 46.93s · back half 49.75s
100 Backstroke SCY 1:46.16
Front half 49.61s · back half 56.55s
100 Breaststroke SCY 1:57.42
Front half 57.36s · back half 60.06s
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.