Ioannis K. Kollias vs Konstantinos Stefanou
Ioannis K. Kollias (24, GRE) and Konstantinos Stefanou (20, FM, GRE) have met 4 times in classical OTB plus 13 rapid/blitz games. Stefanou leads the classical series 3–0 (1 draw). With current classical ratings of 2091 and 2260, the Elo model gives Stefanou a 59% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2091 vs 2260 (Δ -169)
With Ioannis K. Kollias as white
22% Ioannis19% draw59% Konstantinos
With Konstantinos Stefanou as white
16% Ioannis16% draw68% Konstantinos
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Ioannis K. Kollias | Konstantinos Stefanou | |
|---|---|---|
| Current rating (STD) | 2091+1 | 2260 |
| Peak rating | 2091 · May 2026 | 2318 · Dec 2024 |
| Peak age | 24 | 18 |
| World rank now | #16,225 | #5,437 |
| World rank peak | #16,225 | #3,517 |
| Federation rank now | #210 | #76 |
| Games (career, STD) | 523 | 516 |
| Months active | 151 | 121 |
| % white wins | 64% | 53% |
| % black wins | 62% | 47% |
| TPR last 12m (STD) | 2070 | 2227 |
| Activity 12m (games) | 145 | 86 |
Best Win
Ioannis K. Kollias
Konstantinos Stefanou
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (17)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Ioannis K. Kollias
Konstantinos Stefanou