Sergey Koutsin, IM, Ukraine
| Type | Rating | Best | |||
|---|---|---|---|---|---|
| Type | Blitz | Rating | 2228 | Best | 2967 (12/Dec/2000) |
| Type | Bullet | Rating | 2339 | Best | 2588 (13/Jun/2001) |
| Type | 5-minute | Rating | 2251 | Best | 2477 (28/Nov/2015) |
| Type | 1-minute | Rating | 2319 | Best | 2451 (18/Jul/2002) |
| Type | 15-minute | Rating | 918 | Best | |
| Type | 3-minute | Rating | 2160 | Best | 2325 (07/Jan/2019) |
| Type | Chess960 | Rating | 1680 | Best |