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2026 Chess4win February Markham Open O1900

Open SwissStandard

29 players participated in this 5-round tournament, held from 20 Feb 2026 to 22 Feb 2026 in Markham, ON, Canada. 5 titled players from 4 federations. Top 10 Elo average was 1984, and top seed was Zhihan (samuel) Xu (🇨🇦 CAN, CM, 2146).

Nathan Zian Wang (🇨🇦 CAN, 1991) won with 4.5/5, ahead of Raymond Gao (4.0) and Aarush Ajith (4.0). Wang broke clear in the final round.

The biggest upset came in round 3: Aarush Ajith (1806) beat Zhihan (samuel) Xu (CM, 2146), a +340-point gap.

Location
🇨🇦Markham, ON, Canada
Dates
20 Feb 2026 → 22 Feb 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇦CMZhihan (samuel) Xu2146
Avg top 10
1,984
Participants
29
Titled players · 5
CM×1
WFM×4
Federations · 4 represented
🇨🇦Canada×26
🇭🇺Hungary×1
🇮🇷Iran×1
🇨🇳China×1
Top 3
  • 🥇
    Nathan Zian Wang
    🇨🇦CAN·1991
    4.5pts·2283perf+60.8
  • 🥈
    Raymond Gao
    🇨🇦CAN·2056
    4.0pts·2144perf+10.4
  • 🥉
    Aarush Ajith
    🇨🇦CAN·1806
    4.0pts·2129perf+78.4

How it unfolded

Top 6 · 5 rounds

Nathan Zian Wang led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.

Co-leaders
11
3
5
3
1
1.52.545R1R2R3R4R5
Wang4.5Gao4Ajith4Qian3.5Lakhani3.5Qian3
R5–R5 · LEAD HELD

Nathan Zian Wang held the sole lead from R5 through R5 without losing it.

WIN STREAKS · 2 top finishers

Nathan Zian Wang 3 wins (R3–R5)Aarush Ajith 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Nathan Zian Wang*——
1
2Raymond Gao—*
½
½
3Aarush Ajith—
½
*—
4Eric Qian
0
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Wang, Nathan Zian1991CAN+19N=8B+22N+4B+6N4.510.512.010.752283+60.8
2Gao, Raymond2056CAN+12N+14B=4N+8B=3N4.012.514.510.752144+10.4
3Ajith, Aarush1806CAN=27N+28B+20B+13N=2B4.08.59.06.752129+78.4
4Qian, Eric2047CAN+10N+5B=2B−1N+8N3.514.517.010.502088+11.2
5Lakhani, Riyaan1847CAN+24B−4N=21B+23N+11B3.59.010.05.751975+17.4
6Deepak, LaksshanaWFM2010CAN−22B+19N+26B+9N−1B3.010.011.05.001920-21.6
7Qian, AshleyWFM1979CAN−9B=17N+29B+10N=12N3.09.59.54.751887-22.4
8Dembla, Shabd1912CAN+25B=1N+23B−2N−4B2.513.514.54.751909+0.8
9Pan, Julian1825CAN+7N=15B=13N−6B=21N2.510.512.06.001893+18.0
10Oancea, Nicolae1891CAN−4B+25N=15N−7B+14B2.510.511.54.001886+0.2
11Chen, Larry Zhou1892CAN−18N+16B=14N+15B−5N2.59.511.55.001844-12.0
12Jiang, Hanxi (Hancy)WFM1874CAN−2B+24NF+20N=7B2.59.59.54.002044+35.6
13Lin, Austin1829CANF+29N=9B−3B+16N2.58.58.53.251856+5.6
14Colvin, Andrew1882CAN+16N−2N=11B=21B−10N2.011.012.54.001783-13.8
15Bolandnazar, Korosh1897IRI=23B=9N=10B−11N=25B2.09.010.03.751740-42.0
16Madhu Vikram, Chaarvik1686CAN−14B−11N+24B+27N−13B2.08.08.51.501710+5.2
17Russell, Wesley1760CAN−20B=7B=28N=25N=19B2.07.07.53.001778-0.8
18Laughlin, Braden1911CAN+11B+26NFFF2.03.53.53.502649+16.6
19Wang, Taorong1775CHN−1B−6BF+24N=17N1.510.510.52.001757-6.4
20Xu, Zhihan (samuel)CM2146CAN+17N=22B−3N−12BF1.510.010.02.751734-78.8
21Katz, Lyam1753CAN−26BF=5N=14N=9B1.59.09.04.001753-0.4
22Guo, AnniWFM1845CAN+6N=20N−1BFF1.59.09.03.752049+30.8
23Washimkar, Arhant1826CAN=15N+27B−8N−5BF1.58.58.51.501750-8.6
24Le, Duc Khai1613CAN−5N−12B−16N−19B+27B1.09.510.00.501534-17.9
25Zhao, Shannon1630CAN−8N−10BF=17B=15N1.09.09.02.001672+6.8
26Zaka, Mohid1806CAN+21N−18B−6NFF1.06.56.51.501766-3.4
27Roque, Alexa1692CAN=3B−23NF−16B−24N0.58.58.52.001411-51.6
28Bordas, Gyula1725HUNF−3N=17BFF0.56.06.01.001590-6.8
29Li, Alex1725CANF−13B−7NFF0.06.06.00.001104-22.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
2026 Chess4win February Markham Open O1900 — Markham, ON, Canada | Chess Tournament Results | ChessStats