2025 National Capital Open
29 players participated in this 5-round tournament, held from 31 Oct 2025 to 02 Nov 2025 in Ottawa, Canada. 9 titled players from 4 federations. Top 10 Elo average was 2182, and top seed was Bator Sambuev (🇨🇦 CAN, GM, 2541).
Zachary Dukic (🇨🇦 CAN, FM, 2334) won with 4.0/5, ahead of Olivier-Kenta Chiku-Ratte (4.0) and Bator Sambuev (3.5). Dukic shared the lead from round 1, winning on tie-break.
The biggest upset came in round 5: Hugo Guillemette (CM, 1755) beat Zachary Dukic (FM, 2334), a +579-point gap.
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How it unfolded
Top 6 · 5 roundsTight race until R4; 2 players tied at 4.0/5, decided on Buchholz.
FM Zachary Dukic held the sole lead from R4 through R5 without losing it.
2 players finish on 4.0/5. Dukic takes the title on Buchholz Cut1 (14.5).
FM Zachary Dukic beat IM Olivier-Kenta Chiku-Ratte (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMZachary Dukic | * | 1 | — | 0 |
| 2IMOlivier-Kenta Chiku-Ratte | 0 | * | — | — |
| 3Mihnea Voloaca | — | — | * | — |
| 4CMHugo Guillemette | 1 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Dukic, ZacharyFM | 2334 | CAN | +16N | +6B | +3B | +2N | −5N | 4.0 | 14.5 | 16.5 | 13.00 | 2395 | +22.0 |
| 2 | Chiku-Ratte, Olivier-KentaIM | 2477 | CAN | +10B | +18N | +7B | −1B | +11N | 4.0 | 12.0 | 14.0 | 10.00 | 2278 | -0.8 |
| 3 | Sambuev, BatorGM | 2541 | CAN | +19N | +24B | −1N | +22B | =8N | 3.5 | 11.0 | 12.0 | 6.50 | 2281 | -6.6 |
| 4 | Voloaca, Mihnea | 2337 | CAN | −12B | +14N | +18B | +10N | =7B | 3.5 | 10.5 | 12.5 | 8.50 | 2011 | -11.2 |
| 5 | Guillemette, HugoCM | 1755 | CAN | F | +23N | =11B | +12N | +1B | 3.5 | 10.5 | 10.5 | 9.25 | 2354 | +26.4 |
| 6 | Zhu, Elber | 1848 | CAN | +27B | −1N | +26B | =7N | +16N | 3.5 | 9.5 | 10.0 | 4.50 | 2101 | +32.4 |
| 7 | Lattafi, Youcef | 2015 | CAN | +29N | +17B | −2N | =6B | =4N | 3.0 | 13.0 | 13.0 | 5.50 | 2061 | +13.0 |
| 8 | Moses, NeilCM | 1829 | CAN | F | =20B | +19N | +9N | =3B | 3.0 | 10.5 | 10.5 | 7.75 | 2237 | +30.8 |
| 9 | Rousskikh, Maxim | 1774 | CAN | −17N | +29B | +20N | −8B | +19N | 3.0 | 9.0 | 9.0 | 4.00 | 1951 | -3.8 |
| 10 | Ramesan, Raunak Amit | 1948 | CAN | −2N | +28B | +15N | −4B | =13N | 2.5 | 12.5 | 13.0 | 4.25 | 2039 | +30.0 |
| 11 | Nsubuga, HarunaFM | 0 | UGA | F | +21N | =5N | +13B | −2B | 2.5 | 12.0 | 12.0 | 6.25 | 2179 | +1.8 |
| 12 | Di Matteo, Alessio | 1909 | CAN | +4N | −13B | +24N | −5B | =20N | 2.5 | 11.5 | 12.5 | 5.50 | 2031 | +19.2 |
| 13 | Azar, Sebastien | 2015 | CAN | +14B | +12N | −22B | −11N | =10B | 2.5 | 10.0 | 12.0 | 6.25 | 2002 | -1.2 |
| 14 | Wu, Ting En Ryan | 1612 | CAN | −13N | −4B | +27N | =15B | +25B | 2.5 | 9.5 | 10.0 | 2.75 | 1865 | +13.6 |
| 15 | Iordanescu, Victor Nicolae | 1893 | CAN | =21B | =26N | −10B | =14N | +17N | 2.5 | 9.0 | 9.5 | 4.50 | 1850 | -28.0 |
| 16 | Kellar, Ben | 1955 | CAN | −1B | F | +17N | +21N | −6B | 2.0 | 11.5 | 11.5 | 4.00 | 1852 | -3.6 |
| 17 | Tan, Shuwen | 1712 | CAN | +9B | −7N | −16B | +18N | −15B | 2.0 | 10.5 | 12.5 | 5.00 | 1849 | +22.0 |
| 18 | Vu, Huy Minh | 1836 | CAN | +28N | −2B | −4N | −17B | +26B | 2.0 | 10.0 | 10.5 | 1.00 | 1891 | +16.0 |
| 19 | Xin, StellaCM | 0 | USA | −3B | +27N | −8B | +26N | −9B | 2.0 | 10.0 | 10.5 | 1.00 | 1897 | -11.2 |
| 20 | Sun, Jonathan | 1495 | CAN | F | =8N | −9B | +23N | =12B | 2.0 | 10.0 | 10.0 | 4.25 | 1925 | +20.0 |
| 21 | Melaschenko-Bolger, Brian | 1434 | CAN | =15N | −11B | +29N | −16B | =24N | 2.0 | 8.0 | 8.0 | 1.75 | 1891 | 0.0 |
| 22 | Kot, EmanuelIM | 1998 | CAN | F | +25B | +13N | −3N | F | 2.0 | 7.0 | 7.0 | 3.50 | 2235 | -3.2 |
| 23 | Filion, Samuel | 1777 | CAN | F | −5B | =25N | −20B | +28B | 1.5 | 7.0 | 7.0 | 1.00 | 1777 | -2.8 |
| 24 | Gordon, DavidCM | 2204 | CAN | F | −3N | −12B | =25N | =21B | 1.0 | 9.0 | 9.0 | 1.50 | 1714 | -21.8 |
| 25 | Zhu, Edison | 1729 | CAN | F | −22N | =23B | =24B | −14N | 1.0 | 7.0 | 7.0 | 1.25 | 1712 | -0.8 |
| 26 | Fritzsche, Helmut, Dr. | 1888 | GER | F | =15B | −6N | −19B | −18N | 0.5 | 10.0 | 10.0 | 1.25 | 1594 | -35.0 |
| 27 | Ishii, Subaru | 1568 | CAN | −6N | −19B | −14B | =28N | F | 0.5 | 8.5 | 8.5 | 0.25 | 1534 | 0.0 |
| 28 | Mahdjoubi, Abdelaziz | 1913 | CAN | −18B | −10N | F | =27B | −23N | 0.5 | 6.5 | 6.5 | 0.25 | 1024 | -26.0 |
| 29 | Dukkardt, Vladimir | 1780 | CAN | −7B | −9N | −21B | F | F | 0.0 | 8.0 | 8.0 | 0.00 | 1170 | -22.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Zhu, ElberCAN+32.43.5 pts · #10
- 2Moses, NeilCMCAN+30.83.0 pts · #7
- 3Ramesan, Raunak AmitCAN+30.02.5 pts · #9
- 1Fritzsche, Helmut, Dr.GER-35.00.5 pts · #27
- 2Iordanescu, Victor NicolaeCAN-28.02.5 pts · #18
- 3Mahdjoubi, AbdelazizCAN-26.00.5 pts · #29
- R5+579 Elo gap
- R1+428 Elo gap
- R3+346 Elo gap