2026 Le Grand Open de Granby - Section Ouverte

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44 players participated in this 5-round tournament, held from 22 May 2026 to 24 May 2026 in Granby, Quebec, Canada. 4 titled players from 2 federations. Top 10 Elo average was 2105, and top seed was Olivier-Kenta Chiku-Ratte (🇨🇦 CAN, IM, 2435).

Olivier-Kenta Chiku-Ratte (🇨🇦 CAN, IM, 2435) won with 4.5/5, ahead of Ilia Batorshyn (4.0) and Yuen Tak Mok (4.0). Chiku-Ratte won solo starting round 4.

The biggest upset came in round 5: Ethan Zheng Roy (1358) beat Nicolas Zumsteg (1755), a +397-point gap.

Location

🇨🇦Granby, Quebec, Canada

Dates

22 May 2026 → 24 May 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 5 rounds

Top seed

🇨🇦IMOlivier-Kenta Chiku-Ratte2435

Avg top 10

2,105

Participants

Titled players · 4

IM×1

CM×2

WFM×1

Federations · 2 represented

🇨🇦Canada×36

🇫🇷France×1

Top 3

🥇
IMOlivier-Kenta Chiku-Ratte
🇨🇦CAN·2435
4.5pts·2353perf+0.7
🥈
CMIlia Batorshyn
🇨🇦CAN·2314
4.0pts·2158perf+4.6
🥉
Yuen Tak Mok
🇨🇦CAN·1947
4.0pts·2082perf+19.2

How it unfolded

Top 6 · 5 rounds

IM Olivier-Kenta Chiku-Ratte led from R4; +0.5-point edge over the runner-up.

Co-leaders

Chiku-Ratte4.5Batorshyn4Mok4Li3.5Iordanescu3.5Kraiouchkine3.5

R4–R5 · LEAD HELD

IM Olivier-Kenta Chiku-Ratte held the sole lead from R4 through R5 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

IM Olivier-Kenta Chiku-Ratte drew with CM Ilia Batorshyn (Black).

WIN STREAKS · 3 top finishers

IM Olivier-Kenta Chiku-Ratte 4 wins (R1–R4)CM Ilia Batorshyn 3 wins (R2–R4)Yuen Tak Mok 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1IMOlivier-Kenta Chiku-Ratte	*	½	—	1
2CMIlia Batorshyn	½	*	—	—
3Yuen Tak Mok	—	—	*	—
4WFMYilin Li	0	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Chiku-Ratte, Olivier-KentaIM	2435	CAN	+13N	+5B	+11N	+10B	=2N	4.5	13.5	16.5	14.50	2353	+0.7
2	Batorshyn, IliaCM	2314	CAN	=17B	+19N	+41N	+16B	=1B	4.0	12.0	13.0	9.50	2158	+4.6
3	Mok, Yuen Tak	1947	CAN	+33N	−10B	+37N	+11B	+12N	4.0	10.5	11.5	8.50	2082	+19.2
4	Turcotte, Jonathan	1895	CAN	+31B	=6N	+14B	=7N	=9B	3.5	13.5	15.0	9.75	2101	+21.2
5	Li, YilinWFM	1957	CAN	+36B	−1N	=8N	+26B	+16N	3.5	12.5	14.0	7.75	2005	+12.8
6	Iordanescu, Victor Nicolae	2050	CAN	+22N	=4B	=12N	+34B	=8N	3.5	12.0	13.5	8.50	2027	+3.2
7	Kraiouchkine, NikitaCM	2222	CAN	F	+17N	+23B	=4B	+10N	3.5	11.0	11.0	9.25	2203	+4.0
8	Singher, Jean-Pierre	1873	CAN	=32B	+42N	=5B	+27N	=6B	3.5	10.5	11.5	7.25	2012	+16.0
9	Beaudry, Marc-Andre	1988	CAN	+37N	+38B	−10N	+13B	=4N	3.5	10.5	11.5	6.75	1908	-0.8
10	St-Germain, Jack	2050	CAN	+24B	+3N	+9B	−1N	−7B	3.0	15.5	17.5	9.50	2075	+11.2
11	Peloquin, Charli	1998	CAN	+29N	+30B	−1B	−3N	+23B	3.0	12.5	14.0	5.50	1944	-1.6
12	Porlier, Xavier	1950	CAN	=44B	+28N	=6B	+20N	−3B	3.0	12.0	12.5	6.50	1841	-8.6
13	Bain-thouverez, Aurelien	1819	FRA	−1B	+32N	+39B	−9N	+24B	3.0	11.5	12.5	4.50	1841	-5.4
14	Jutras, Arnaud	1965	CAN	F	+26B	−4N	+40B	+18N	3.0	9.0	9.0	5.50	1966	+4.8
15	Hartner, Rian	1951	CAN	−30N	−37B	+31B	+39N	+22B	3.0	6.0	7.0	4.50	2556	+14.4
16	Daigle, Gilles	1992	CAN	=43B	+21N	+18B	−2N	−5B	2.5	12.5	13.0	5.25	1878	+44.0
17	Gamache, Lucien	1799	CAN	=2N	−7B	+28B	=22N	=27B	2.5	11.5	13.5	6.00	1908	+11.2
18	Zhang, Yitian	1883	CAN	=25N	+35B	−16N	+38B	−14B	2.5	9.0	10.0	3.50	1022	-39.6
19	Tse, Chun Wing	1871	CAN	F	−2B	+30N	=25B	+35N	2.5	9.0	9.0	4.00	1352	-3.6
20	Landry, Sylvain	1946	CAN	F	=39N	+24B	−12B	+25N	2.5	8.0	8.0	4.50	1624	-12.0
21	Crete, Mathys	1766	CAN	F	−16B	=35N	+37B	+34N	2.5	6.5	6.5	3.25	1783	0.0
22	Gagnon, Gabriel	1780	CAN	−6B	+36N	=38N	=17B	−15N	2.0	10.5	11.5	3.25	1824	+0.4
23	Kolodner, Garry	1901	CAN	F	+25B	−7N	+29B	−11N	2.0	10.5	10.5	4.00	1816	+0.4
24	FIDE 2686538	1765	—	−10N	+33B	−20N	+30B	−13N	2.0	10.0	11.5	3.00	1662	0.0
25	FIDE 2686520	1558	—	=18B	−23N	+43B	=19N	−20B	2.0	9.5	10.0	3.00	1735	0.0
26	Milette, Patrick	1763	CAN	F	−14N	+32B	−5N	+33B	2.0	9.5	9.5	3.00	1736	+14.0
27	Sun, Jonathan	2031	CAN	F	+40B	=34N	−8B	=17N	2.0	8.5	8.5	3.00	1832	-10.4
28	FIDE 2686503	1741	—	F	−12B	−17N	+31N	+41B	2.0	8.0	8.0	2.50	1759	0.0
29	Perreault, Jacquelin	1763	CAN	−11B	=31N	+42B	−23N	=38N	2.0	7.5	8.5	2.25	1604	-20.8
30	FIDE 2686490	1664	—	+15B	−11N	−19B	−24N	=39B	1.5	10.5	11.5	3.50	1771	0.0
31	FIDE 2686511	1576	—	−4N	=29B	−15N	−28B	+37N	1.5	10.5	11.5	2.00	1614	0.0
32	FIDE 2660229	1455	—	=8N	−13B	−26N	−33B	+44N	1.5	10.0	10.5	2.25	1593	0.0
33	Gauthier, Denis	1596	CAN	−3B	−24N	=36B	+32N	−26N	1.5	9.5	11.0	2.25	1494	-17.4
34	Marcone, Malcom	1949	CAN	F	+44N	=27B	−6N	−21B	1.5	8.5	8.5	1.50	1731	-29.6
35	Duplessis, Jean Roch	1606	CAN	F	−18N	=21B	+43N	−19B	1.5	8.0	8.0	1.75	1705	0.0
36	Auersperg, Leo	1738	CAN	−5N	−22B	=33N	F	+40N	1.5	8.0	8.0	1.75	1712	-16.0
37	Bonami, Jonathan	1745	CAN	−9B	+15N	−3B	−21N	−31B	1.0	13.0	14.5	3.00	1711	0.0
38	FIDE 2648610	1178	—	F	−9N	=22B	−18N	=29B	1.0	10.0	10.0	2.00	1630	0.0
39	Kao, Chen-Hsiang	1647	CAN	F	=20B	−13N	−15B	=30N	1.0	10.0	10.0	2.00	1645	-7.2
40	Mercure, Gilbert	1788	CAN	F	−27N	+44B	−14N	−36B	1.0	7.0	7.0	0.50	1607	-14.6
41	Di Matteo, Alessio	1961	CAN	F	+43N	−2B	F	−28N	1.0	6.5	6.5	0.50	1972	+3.8
42	Zheng Roy, Ethan	1358	CAN	F	−8B	−29N	F	+43B	1.0	6.0	6.0	0.50	1672	+25.6
43	Zumsteg, Nicolas	1755	CAN	=16N	−41B	−25N	−35B	−42N	0.5	7.0	8.0	1.25	1407	-55.2
44	Yavorskyi, Yevhen	1654	CAN	=12N	−34B	−40N	F	−32B	0.5	7.0	7.0	1.50	1578	-3.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Daigle, GillesCAN
+44.0
2.5 pts · #10
2Zheng Roy, EthanCAN
+25.6
1.0 pts · #34
3Turcotte, JonathanCAN
+21.2
3.5 pts · #9

Top rating losers

1Zumsteg, NicolasCAN
-55.2
0.5 pts · #39
2Zhang, YitianCAN
-39.6
2.5 pts · #44
3Marcone, MalcomCAN
-29.6
1.5 pts · #20

Biggest upsets

R5+397 Elo gap
Zheng Roy, Ethan1358 beat Zumsteg, Nicolas1755
R1+287 Elo gap
1664 beat Hartner, Rian1951
R5+220 Elo gap
1741 beat Di Matteo, Alessio1961