2 games · 2021–2026 · 1 classical · 1 online
Koellner 01 draws1 Krejci
25.0% for Koellner
Openings between them
| B13 | Caro-Kann Defense: Exchange Variation | 1 | 0.0% |
| D05 | Queen's Pawn Game: Zukertort Variation | 1 | 50.0% |
All games
| Koellner, Ruben Gideon2526 | ½-½ | Krejci, Jan22509 | Bundesliga 2025-26 | 2026 |
| Koellner, Ruben Gideon2412 | 0-1 | Krejci, Jan22540 | Mitropa Online Cup 2021 | 2021 |