Ekaterina Sumnaya vs Olga Polykovskaya
Ekaterina Sumnaya (95, RUS) and Olga Polykovskaya (74, RUS) have met 1 time in classical OTB plus 7 rapid/blitz games. With current classical ratings of 1525 and 1627, the Elo model gives Polykovskaya a 51% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1525 vs 1627 (Δ -102)
With Ekaterina Sumnaya as white
32% Ekaterina16% draw51% Olga
With Olga Polykovskaya as white
24% Ekaterina14% draw62% Olga
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Ekaterina Sumnaya | Olga Polykovskaya | |
|---|---|---|
| Current rating (STD) | 1525 | 1627 |
| Peak rating | 1728 · Mar 2011 | 1697 · May 2010 |
| Peak age | 80 | 58 |
| World rank now | #133,286 | #124,730 |
| World rank peak | #52,444 | #57,789 |
| Federation rank now | #5,088 | #6,540 |
| Games (career, STD) | 265 | 119 |
| Months active | 181 | 180 |
| % white wins | 28% | 30% |
| % black wins | 27% | 25% |
| TPR last 12m (STD) | — | — |
| Activity 12m (games) | 0 | 0 |
Best Win
Ekaterina Sumnaya
Olga Polykovskaya
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (8)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Ekaterina Sumnaya
Olga Polykovskaya