Peter J. Kirby vs Igor Efimov
Peter J. Kirby (63, CM, GCI) and Igor Efimov (66, GM, MNC) have met 5 times in classical OTB. Efimov leads the classical series 5–0 (0 draws). With current classical ratings of 1935 and 2318, the Elo model gives Efimov a 83% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1935 vs 2318 (Δ -383)
With Peter J. Kirby as white
6% Peter11% draw83% Igor
With Igor Efimov as white
4% Peter9% draw87% Igor
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Peter J. Kirby | Igor Efimov | |
|---|---|---|
| Current rating (STD) | 1935 | 2318 |
| Peak rating | 2067 · Sep 2009 | 2505 · Jan 2004 |
| Peak age | 46 | 44 |
| World rank now | #39,896 | #3,536 |
| World rank peak | #22,430 | #558 |
| Federation rank now | #2 | #3 |
| Games (career, STD) | 401 | 1,435 |
| Months active | 208 | 217 |
| % white wins | 26% | 62% |
| % black wins | 21% | 56% |
| TPR last 12m (STD) | -193 | 2258 |
| Activity 12m (games) | 28 | 106 |
Best Win
Peter J. Kirby
Igor Efimov
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (5)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Peter J. Kirby
Igor Efimov