- Rank
- 5
- Starting rank
- 20
- Points
- 7.5
- Performance
- 2648
- Expected FIDE +/-
- +15.1 K=10
- FIDE Rating
- 2506
- Federation
- GER
- Source
- Le Cavalier Differdangehttps://lecavalier.lu/grenke-Chess-Open-2026.htm
Koellner Ruben Gideon
Player details
Games Played
| Rd. | BO | SNO | Opponent | RTG | FED | Club | Pts. | Res. | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | 171 | Asici Poyraz Efe | 2110 | TUR | 5.5 | 1 | ||
| 2 | 5 | 180 | Van Batenburg Mees | 2225 | NED | 5.5 | 1 | ||
| 3 | 5 | 202 | IM | Zeller Frank | 2314 | GER | 5.5 | 1 | |
| 4 | 5 | 164 | FM | Collins Adam | 2339 | IRL | 5.5 | 1 | |
| 5 | 4 | 4 | GM | Hong Andrew | 2598 | USA | 7.5 | ½ | |
| 6 | 5 | 263 | FM | Willems Niels | 2388 | FRA | 5 | ½ | |
| 7 | 5 | 18 | IM | Kalogridis Antonios | 2386 | GRE | 7 | 1 | |
| 8 | 5 | 15 | GM | Karthik Venkataraman | 2594 | IND | 7 | ½ | |
| 9 | 4 | 30 | IM | Abdurakhmonov Mukhammadali | 2362 | UZB | 6.5 | 1 |
Derived from the Le Cavalier crosstable. Federation and club/city were enriched from official FFE result pages where available.