2025 Chess4win December Markham Open O1900
30 players participated in this 5-round tournament, held from 06 Dec 2025 to 07 Dec 2025 in Markham, ON, Canada. 5 titled players from 5 federations. Top 10 Elo average was 2026, and top seed was David H. Cummings (🇨🇦 CAN, IM, 2235).
Henry Yao (🇨🇦 CAN, 1892) won with 4.0/5, ahead of Jeffrey R Zhao (4.0) and Surender Kumar Sharma (3.5). Yao shared the lead from round 4, winning on tie-break.
The biggest upset came in round 3: Korosh Bolandnazar (1803) beat Irene Xie (WFM, 1996), a +193-point gap.
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How it unfolded
Top 6 · 5 roundsTight race until R5; 2 players tied at 4.0/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
2 players finish on 4.0/5. Yao takes the title on Buchholz Cut1 (13.0).
Henry Yao drew with Jeffrey R Zhao (White).
Jeffrey R Zhao won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Henry Yao | * | ½ | 1 | — |
| 2Jeffrey R Zhao | ½ | * | — | ½ |
| 3Surender Kumar Sharma | 0 | — | * | — |
| 4IMDavid H. Cummings | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Yao, Henry | 1892 | CAN | +5B | +3N | =10B | +11N | =2B | 4.0 | 13.0 | 15.5 | 12.25 | 2206 | +79.2 |
| 2 | Zhao, Jeffrey R | 2070 | CAN | +17N | +20B | +12N | =4B | =1N | 4.0 | 12.0 | 13.5 | 9.75 | 2173 | +25.6 |
| 3 | Surender Kumar Sharma | 1946 | IND | +8N | −1B | +25B | =20N | +7B | 3.5 | 11.5 | 12.5 | 7.75 | 2050 | +13.8 |
| 4 | Cummings, David H.IM | 2235 | CAN | +9B | +19N | F | =2N | +10B | 3.5 | 11.5 | 11.5 | 9.50 | 2289 | +2.1 |
| 5 | Huang, Eric | 1808 | CAN | −1N | +30B | +8N | −14B | +21N | 3.0 | 11.0 | 11.0 | 4.50 | 1926 | +25.2 |
| 6 | Bolandnazar, Korosh | 1803 | IRI | +7B | =14N | +13B | −10N | =11B | 3.0 | 10.5 | 13.0 | 8.00 | 2062 | +68.8 |
| 7 | Wang, Bingfei | 1957 | CAN | −6N | +27B | +17N | +18B | −3N | 3.0 | 10.5 | 11.0 | 4.50 | 1901 | -6.8 |
| 8 | Deepak, LaksshanaWFM | 1941 | CAN | −3B | +28N | −5B | +23N | +19B | 3.0 | 9.5 | 10.0 | 3.50 | 1873 | -16.4 |
| 9 | Lakhani, Riyaan | 1868 | CAN | −4N | =23B | +22N | +21B | =24N | 3.0 | 7.5 | 8.5 | 4.00 | 1911 | +4.6 |
| 10 | Qian, Eric | 2041 | CAN | F | +21B | =1N | +6B | −4N | 2.5 | 12.0 | 12.0 | 6.50 | 2047 | +1.2 |
| 11 | Gao, HeyeCM | 1966 | CAN | F | +22B | +18N | −1B | =6N | 2.5 | 10.5 | 10.5 | 5.00 | 1895 | -13.6 |
| 12 | Ajith, Aarush | 1799 | CAN | +28B | +24N | −2B | −15N | =13B | 2.5 | 10.0 | 10.5 | 2.75 | 1924 | +29.6 |
| 13 | Xie, IreneWFM | 1996 | CAN | −18N | +29B | −6N | +17B | =12N | 2.5 | 9.5 | 9.5 | 3.25 | 1789 | -51.2 |
| 14 | Huang, Justin | 1993 | CAN | +27N | =6B | F | +5N | F | 2.5 | 6.5 | 6.5 | 5.00 | 2038 | +6.0 |
| 15 | Malakar, SaarthakFM | 2114 | CAN | F | =26N | +19B | +12B | F | 2.5 | 5.5 | 5.5 | 5.00 | 2091 | -2.0 |
| 16 | Gandolfi, Fred | 1739 | CAN | −20N | −17B | +27N | =22B | +29N | 2.5 | 5.5 | 5.5 | 1.25 | 1742 | +0.4 |
| 17 | Yang, Chengzhang | 1873 | CAN | −2B | +16N | −7B | −13N | +23B | 2.0 | 12.0 | 13.0 | 3.50 | 1826 | -12.8 |
| 18 | Casareno, Erwin | 1843 | NED | +13B | +25N | −11B | −7N | F | 2.0 | 9.0 | 9.0 | 3.50 | 1941 | +10.6 |
| 19 | Bi, William | 1784 | CAN | +30N | −4B | −15N | +29B | −8N | 2.0 | 9.0 | 9.0 | 0.00 | 1774 | -8.0 |
| 20 | Tseng, Bradley | 1869 | CAN | +16B | −2N | F | =3B | F | 1.5 | 10.0 | 10.0 | 4.25 | 1918 | +7.6 |
| 21 | Pan, Julian | 1876 | CAN | +23B | −10N | =24B | −9N | −5B | 1.5 | 9.5 | 10.5 | 1.50 | 1679 | -52.4 |
| 22 | Madhu Vikram, Chaarvik | 1659 | CAN | =26B | −11N | −9B | =16N | =27B | 1.5 | 9.0 | 9.5 | 2.00 | 1676 | +1.6 |
| 23 | Zhao, Shannon | 1727 | CAN | −21N | =9N | =28B | −8B | −17N | 1.0 | 9.5 | 10.0 | 1.75 | 1619 | -25.2 |
| 24 | Sama, Chetan Reddy | 1697 | CAN | F | −12B | =21N | F | =9B | 1.0 | 8.0 | 8.0 | 2.25 | 1722 | +3.6 |
| 25 | Russell, Wesley | 1847 | CAN | +29N | −18B | −3N | F | F | 1.0 | 5.5 | 5.5 | 0.00 | 1681 | -25.6 |
| 26 | Loadman, Ian | 1873 | CAN | =22N | =15B | F | F | F | 1.0 | 5.0 | 5.0 | 2.00 | 1887 | +0.6 |
| 27 | Chamberland, Luc | 1684 | CAN | −14B | −7N | −16B | F | =22N | 0.5 | 9.5 | 10.0 | 0.75 | 1515 | -15.2 |
| 28 | Anish, Diganth | 1743 | CAN | −12N | −8B | =23N | F | F | 0.5 | 7.0 | 7.0 | 0.50 | 1549 | -27.2 |
| 29 | Syed, Farhaan | 1627 | USA | −25B | −13N | F | −19N | −16B | 0.0 | 8.0 | 8.0 | 0.00 | 1041 | -38.4 |
| 30 | Moshopoulos, Angelos | 0 | CAN | −19B | −5N | F | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 997 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Yao, HenryCAN+79.24.0 pts · #1
- 2Bolandnazar, KoroshIRI+68.83.0 pts · #6
- 3Ajith, AarushCAN+29.62.5 pts · #12
- 1Pan, JulianCAN-52.41.5 pts · #21
- 2Xie, IreneWFMCAN-51.22.5 pts · #11
- 3Syed, FarhaanUSA-38.40.0 pts · #30
- R3+193 Elo gap
- R1+154 Elo gap
- R1+153 Elo gap