Ruben Gideon Koellner vs Cedric Chassard
Ruben Gideon Koellner (22, IM, GER) and Cedric Chassard (20, FM, GER) have met 5 times in classical OTB. Koellner leads the classical series 4–0 (1 draw). With current classical ratings of 2530 and 2232, the Elo model gives Koellner a 81% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2530 vs 2232 (Δ +298)
With Ruben Gideon Koellner as white
81% Ruben13% draw7% Cedric
With Cedric Chassard as white
75% Ruben15% draw11% Cedric
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Ruben Gideon Koellner | Cedric Chassard | |
|---|---|---|
| Current rating (STD) | 2530+24 | 2232-53 |
| Peak rating | 2530 · May 2026 | 2349 · Sep 2023 |
| Peak age | 22 | 17 |
| World rank now | #408 | #6,602 |
| World rank peak | #408 | #2,822 |
| Federation rank now | #21 | #641 |
| Games (career, STD) | 1,190 | 760 |
| Months active | 138 | 107 |
| % white wins | 53% | 53% |
| % black wins | 46% | 39% |
| TPR last 12m (STD) | 2513 | 2240 |
| Activity 12m (games) | 150 | 219 |
Best Win
Ruben Gideon Koellner
Cedric Chassard
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).
Ruben Gideon Koellner
Cedric Chassard