Kstovo City day 2025
12 players participated in this 7-round tournament, held from 20 Sept 2025 to 05 Oct 2025 in Kstovo, Russia. Top 10 Elo average was 1744, and top seed was Nikita Nagornov (🇷🇺 RUS, 2200).
Ivan Chernov (🇷🇺 RUS, 1756) won with 6.5/7, ahead of Matvey A Pyatnitsyn (5.5) and Alexander Borsch (4.5). Chernov shared the lead from round 4 and won solo starting round 5.
The biggest upset came in round 2: Alexander Borsch (1832) beat Nikita Nagornov (2200), a +368-point gap.
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How it unfolded
Top 6 · 7 roundsIvan Chernov led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Ivan Chernov takes the sole lead (4.5/5).
Ivan Chernov drew with Matvey A Pyatnitsyn (Black).
Ivan Chernov 4 wins (R4–R7)Alexander Borsch 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishersGrille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Chernov, Ivan | 1756 | RUS | +9N | +5B | =2N | +3B | +8B | +4N | +6B | 6.5 | 21.0 | 22.0 | 19.25 | 2114 | +96.4 |
| 2 | Pyatnitsyn, Matvey A | 1850 | RUS | +7B | +4N | =1B | +9N | −3B | +10N | +5B | 5.5 | 21.5 | 22.5 | 14.75 | 1903 | +20.0 |
| 3 | Borsch, Alexander | 1832 | RUS | +8B | +11N | +4B | −1N | +2N | =5B | F | 4.5 | 22.0 | 22.0 | 13.75 | 1996 | +48.0 |
| 4 | Kozlov, Kirill Dm. | 1683 | RUS | +10N | −2B | −3N | +6B | +5N | −1B | +8N | 4.0 | 23.5 | 24.5 | 8.00 | 1746 | +24.8 |
| 5 | Skvortsov, Vladislav V. | 1773 | RUS | +12B | −1N | +7B | +8N | −4B | =3N | −2N | 3.5 | 24.0 | 24.5 | 6.25 | 1689 | -29.2 |
| 6 | Buldakov, Ivan | 1620 | RUS | −11B | −8N | +12B | −4N | +10B | F | −1N | 2.0 | 14.5 | 14.5 | 1.50 | 1540 | -29.6 |
| 7 | Mayorov, Mark | 1644 | RUS | −2N | +10B | −5N | +12B | F | F | F | 2.0 | 11.5 | 11.5 | 1.50 | 1650 | -0.8 |
| 8 | Safonova, Anastasiya | 1552 | RUS | −3N | +6B | F | −5B | −1N | =12N | −4B | 1.5 | 21.5 | 22.0 | 2.25 | 1500 | -18.0 |
| 9 | Belmesov, Mark | 1531 | RUS | −1B | +12N | F | −2B | F | F | F | 1.0 | 15.5 | 15.5 | 0.50 | 1575 | +4.4 |
| 10 | Tselovalnikov, Stepan | 1482 | RUS | −4B | −7N | F | F | −6N | −2B | +12N | 1.0 | 15.5 | 15.5 | 0.50 | 1419 | -17.2 |
| 11 | Nagornov, Nikita | 2200 | RUS | +6N | −3B | F | F | F | F | F | 1.0 | 7.5 | 7.5 | 2.00 | 1817 | -32.8 |
| 12 | Sheyko, Konstantin | 1491 | RUS | −5N | −9B | −6N | −7N | F | =8B | −10B | 0.5 | 11.0 | 11.0 | 0.75 | 1201 | -66.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Chernov, IvanRUS+96.46.5 pts · #1
- 2Borsch, AlexanderRUS+48.04.5 pts · #3
- 3Kozlov, Kirill Dm.RUS+24.84.0 pts · #4
- 1Sheyko, KonstantinRUS-66.00.5 pts · #12
- 2Nagornov, NikitaRUS-32.81.0 pts · #10
- 3Buldakov, IvanRUS-29.62.0 pts · #7
- R2+368 Elo gap