CChessStats

Markham True North Open O1900

Open SwissStandard

17 players participated in this 6-round tournament, held from 27 Jun 2025 to 29 Jun 2025 in Markham, Canada. 7 titled players from 3 federations. Top 10 Elo average was 2017, and top seed was Razvan Preotu (🇨🇦 CAN, GM, 2474).

Razvan Preotu (🇨🇦 CAN, GM, 2474) won with 5.0/6, ahead of Mark Plotkin (4.5) and Laksshana Deepak (3.5).

The biggest upset came in round 3: Minh Thong Nguyen (1761) beat Ryan Yunhui Zhong (FM, 2099), a +338-point gap.

Location
🇨🇦Markham, Canada
Dates
27 Jun 2025 → 29 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇨🇦GMRazvan Preotu2474
Avg top 10
2,017
Participants
17
Titled players · 7
GM×1
IM×1
FM×2
CM×1
WFM×1
WCM×1
Federations · 3 represented
🇨🇦Canada×15
🇺🇸United States of America×1
🇻🇳Vietnam×1
Top 3

How it unfolded

Top 6 · 6 rounds

GM Razvan Preotu led from R3; +0.5-point edge over the runner-up.

Co-leaders
7
2
1
4
1
1
1.534.56R1R2R3R4R5R6
R3–R6 · LEAD HELD

GM Razvan Preotu held the sole lead from R3 through R6 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

GM Razvan Preotu drew with IM Mark Plotkin (White).

R1–R6 · UNBEATEN

GM Razvan Preotu went unbeaten across 6 games (R1–R6).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1GMRazvan Preotu*
½
1
2IMMark Plotkin
½
*
1
3WFMLaksshana Deepak
0
0
*
4FMRyan Yunhui Zhong*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Preotu, RazvanGM2474CAN+13N=6B+3N=2B+11N+4B5.017.019.015.252398-2.5
2Plotkin, MarkIM2350CAN+8B+9NF=1N+6B+3B4.517.517.515.002421+4.9
3Deepak, LaksshanaWFM1901CAN+10B+11N1B+14N=4B2N3.518.520.59.252052+34.3
4Li, WilliamCM2101CAN=12N+7B=6N+8B=3N1N3.517.519.510.251989-14.6
5Zhong, Ryan YunhuiFM2099CANF=12B8N+16B+10N+11B3.510.510.56.501907-35.6
6Malakar, SaarthakFM1887CAN+14B=1N=4B+9N2NF3.018.018.09.252124+54.8
7Russell, Wesley1823CAN+15B4N=10B11N+9B=12N3.014.014.56.0018280.0
8Nguyen, Minh Thong1761VIE2N+16B+5B4N+14BF3.013.513.55.502020+29.8
9Zhong, April YunweiWCM1898CAN+16N2B+12N6B7N+15B3.013.013.02.501848-19.2
10Chen, Ray1719CAN3N+17B=7N+15B5B=13N3.012.512.53.001812+27.2
11Zhang, Daniel1871CAN+17N3B=15N+7B1B5N2.515.515.53.251838-16.0
12Huang, Eric1746CAN=4B=5N9B=13NF=7B2.015.015.06.001866+24.8
13Mammadov, Nihad1770CAN1B14NF=12B+15N=10B2.012.512.53.001718-19.6
14Chang, Eli1684USA6N+13B+16N3B8NF2.011.511.52.001731+11.2
15Ma, Quentin1639CAN7NF=11B10N13B9N0.513.513.51.251449-34.8
16Patil, Tanishq1695CAN9B8N14B5NFF0.011.511.50.001060-50.0
17Lau, Jayden1640CAN11B10NFFFF0.09.59.50.00993-24.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets