Tournoi du 40eme anniversaire de YES

Open SwissStandard

86 players participated in this 5-round tournament, held from 24 May 2025 to 25 May 2025 in Guyancourt, France. 2 titled players from 5 federations. Top 10 Elo average was 1999, and top seed was Julien G. Laurent (🇫🇷 FRA, FM, 2184).

Wissam Alami Messaoudi (🇫🇷 FRA, 1784) won with 4.5/5, ahead of Han Nam Pham (4.5) and Loic Fournier (4.5). Alami Messaoudi won on tie-break after catching the field in the final round.

The biggest upset came in round 5: Wissam Alami Messaoudi (1784) beat Julien G. Laurent (FM, 2184), a +400-point gap.

Location

🇫🇷Guyancourt, France

Dates

24 May 2025 → 25 May 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇫🇷FMJulien G. Laurent2184

Avg top 10

1,999

Participants

Titled players · 2

FM×1

CM×1

Federations · 5 represented

🇫🇷France×78

🇪🇸Spain×1

🇮🇹Italy×1

🇺🇦Ukraine×1

🇲🇦Morocco×1

Top 3

🥇
Wissam Alami Messaoudi
🇫🇷FRA·1784
4.5pts·2224perf+47.6
🥈
CMHan Nam Pham
🇫🇷FRA·1971
4.5pts·2125perf+29.6
🥉
Loic Fournier
🇫🇷FRA·2174
4.5pts·2219perf+4.6

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 3 players tied at 4.5/5, decided on Buchholz.

Co-leaders

Alami Messaoudi4.5Fournier4.5Pham4.5Briquet4Laurent4Nosperger4

R5 · TIEBREAK CLUSTER

3 players finish on 4.5/5. Alami Messaoudi takes the title on Buchholz Cut1 (14.5).

WIN STREAKS · 3 top finishers

Wissam Alami Messaoudi 3 wins (R1–R3)Loic Fournier 3 wins (R3–R5)CM Han Nam Pham 4 wins (R2–R5)

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Alami Messaoudi, Wissam	1784	FRA	+32N	+8B	+29N	=11B	+4N	4.5	14.5	17.5	15.75	2224	+47.6
2	Pham, Han NamCM	1971	FRA	=47N	+28B	+43N	+10B	+20N	4.5	12.5	14.5	13.50	2125	+29.6
3	Fournier, Loic	2174	FRA	+55N	=16B	+42N	+41B	+11N	4.5	11.5	13.5	12.00	2219	+4.6
4	Laurent, Julien G.FM	2184	FRA	+65B	+5N	+44B	+14N	−1B	4.0	14.5	16.5	12.00	2069	-8.4
5	Briquet, Tom	1814	FRA	+15B	−4B	+49N	+44N	+25B	4.0	13.0	15.0	11.00	1990	+36.4
6	Boukelmoun, Wassim	1694	FRA	+9B	−13N	+54B	+51N	+16N	4.0	12.5	14.5	11.00	1984	+58.8
7	Salvador, Lucie	1880	FRA	+26N	=12B	+70N	=16B	+24N	4.0	12.5	14.0	10.75	1943	+6.2
8	Bielle, Lucas	1894	FRA	+69B	−1N	+27B	+48N	+18N	4.0	12.5	14.0	9.50	1933	+5.0
9	Nosperger, Mael	1846	FRA	−6N	+47B	+74N	+30B	+26N	4.0	12.0	13.0	9.00	1914	+14.4
10	Kalman, David	1529	FRA	+80B	+69N	+17B	−2N	+19B	4.0	12.0	13.0	8.50	2005	+46.6
11	Ben Khelifa, Noomene	2074	FRA	+23B	+19N	+50B	=1N	−3B	3.5	15.0	17.0	10.25	1971	-8.2
12	Pierron Bejan, Nicephore	1778	FRA	+48B	=7N	+13B	=17N	=14B	3.5	14.0	16.0	10.75	2008	+61.2
13	Briquet, Jean-Pierre	1995	FRA	=31N	+6B	−12N	+46B	+22N	3.5	13.5	16.0	11.00	1862	-13.4
14	Greuthier, Alois	1980	FRA	+25B	+18N	+51B	−4B	=12N	3.5	13.5	15.5	9.75	1968	-0.8
15	Kliuchnikov, Yehor	1672	UKR	−5N	+57B	+72N	=21B	+41N	3.5	11.5	12.5	7.00	1857	+19.2
16	Dufrenoy, Franck	1796	FRA	+34B	=3N	+45B	=7N	−6B	3.0	15.5	18.0	9.75	1849	+3.6
17	Roy, Alain	1823	FRA	+30N	+36B	−10N	=12B	=21N	3.0	13.5	16.5	9.25	1791	-2.8
18	Collin, Pascal	1786	FRA	+37B	−14B	+60N	+39N	−8B	3.0	13.5	15.5	8.00	1782	+1.2
19	Chhung, Rattanak	1787	FRA	+22N	−11B	+57N	+29B	−10N	3.0	13.5	15.5	8.00	1716	-7.6
20	Delmas-Goyon, Francois	1911	FRA	+24N	F	+35B	+34N	−2B	3.0	13.5	13.5	9.00	1918	+2.4
21	Dang, Louis	1931	FRA	−43B	+35N	+38B	=15N	=17B	3.0	12.5	15.0	9.25	1743	-41.6
22	Salagnac, Sowan	1640	FRA	−19B	+33N	+63B	+23N	−13B	3.0	12.5	14.5	8.00	1741	+18.8
23	Didierjean, Tristan	1759	FRA	−11N	+38B	+62N	−22B	+45B	3.0	12.0	14.0	7.50	1638	-10.8
24	Sondermeijer, Antoine	1716	FRA	−20B	+52N	+59B	+33N	−7B	3.0	12.0	14.0	7.00	1733	+3.4
25	Doan, Hoang Minh	1745	FRA	−14N	+49B	+58N	+42B	−5N	3.0	12.0	14.0	6.50	1687	-9.0
26	Guerillon, Sylvain	1709	FRA	−7B	+54N	+53B	+52N	−9B	3.0	12.0	14.0	6.00	1731	+3.4
27	Meddour, Ithri	1562	FRA	−45B	+40N	−8N	+58B	+47N	3.0	11.5	13.5	7.00	1849	+43.2
28	Lim, Vincent	1870	FRA	=46B	−2N	+75N	+70B	=31N	3.0	11.5	12.5	5.25	1683	-14.8
29	Cros, Alexandre	1521	FRA	+84B	+56N	−1B	−19N	+48B	3.0	11.5	12.0	4.50	1721	+20.0
30	Tong, Charles	1692	FRA	−17B	+53N	+64B	−9N	+59B	3.0	11.0	13.0	6.00	1704	+4.4
31	Appavou, Calixte	1746	FRA	=13B	−46N	+71B	+50N	=28B	3.0	11.0	12.5	6.75	1791	+4.4
32	Antoine, Vladimir	1634	FRA	−1B	=45N	=69B	+64N	+53B	3.0	11.0	12.5	6.00	1706	+18.4
33	Ferreira-Yang, Alexis	1424	FRA	+86N	−22B	+36N	−24B	+61N	3.0	11.0	11.0	5.00	1660	+47.2
34	Baltzer, Jean-Marc	1648	FRA	−16N	+60B	+76N	−20B	+49N	3.0	10.0	11.0	5.00	1674	+2.2
35	Ouaddi, Oussama	1566	MAR	+73N	−21B	−20N	+62B	+51N	3.0	10.0	11.0	5.00	1121	-8.4
36	Alluch Abdellach, Nordin	1665	ESP	+83B	−17N	−33B	+68N	+52B	3.0	10.0	10.5	4.50	1563	-10.2
37	Tarditi, Francesco	1638	ITA	−18N	−42B	+77N	+60B	+54N	3.0	9.5	10.5	5.00	1541	-9.8
38	Barthere, Gilles	1573	FRA	+78B	−23N	−21N	+73B	+63B	3.0	9.0	10.0	4.00	1045	-7.2
39	Moulun, Raphael	1597	FRA	+67B	−65N	+83N	−18B	+50B	3.0	9.0	9.5	4.50	978	-10.4
40	Couradin, Bruno	1554	FRA	=70N	−27B	=47N	+72B	+56B	3.0	8.5	9.5	4.75	1660	+8.4
41	Setkov, Aleksandr	1845	FRA	+56B	=43N	+46B	−3N	−15B	2.5	13.0	15.0	5.75	1794	-8.0
42	Cario, Ella	1404	FRA	+79B	+37N	−3B	−25N	=44B	2.5	13.0	14.0	5.25	1612	+33.6
43	Rousseau, Philippe	1722	FRA	+21N	=41B	−2B	−45N	+71B	2.5	12.5	14.0	5.75	1930	+21.4
44	Foveau, Guillaume	1603	FRA	+61N	+75B	−4N	−5B	=42N	2.5	12.5	13.5	4.25	1624	-0.8
45	Mavides, Christian	0	FRA	+27N	=32B	−16N	+43B	−23N	2.5	12.0	14.5	7.00	1692	0.0
46	Imbert, Nicolas	1709	FRA	=28N	+31B	−41N	−13N	+69B	2.5	12.0	13.5	6.00	1834	+15.8
47	Goujon, Antoine	1724	FRA	=2B	−9N	=40B	+81N	−27B	2.0	14.5	15.5	4.75	1613	-14.8
48	Ferreira-Yang, Maxime	1619	FRA	−12N	+76B	+66N	−8B	−29N	2.0	12.5	13.5	3.00	931	-43.6
49	Pierron Bejan, Elisa	1546	FRA	+63B	−25N	−5B	+66N	−34B	2.0	12.0	14.0	4.00	936	-30.8
50	Bellec, Alexandre	0	FRA	+74N	+61B	−11N	−31B	−39N	2.0	11.5	12.5	3.00	1646	0.0
51	Guguen, Neo	0	FRA	+81N	+82B	−14N	−6B	−35B	2.0	11.5	12.5	2.00	1490	0.0
52	Martinez, Alberto	1545	FRA	+58N	−24B	+55N	−26B	−36N	2.0	11.0	13.0	4.00	1520	-2.2
53	David, Gauthier	1500	FRA	+72N	−30B	−26N	+55B	−32N	2.0	11.0	12.0	3.00	1503	0.0
54	Davoust, Virgile	1526	FRA	+77N	−26B	−6N	+83B	−37B	2.0	11.0	11.5	1.50	880	-35.6
55	Sirbi, Michael	1763	FRA	−3B	+59N	−52B	−53N	+70N	2.0	10.5	12.0	3.50	1496	-58.4
56	Poupeau, Julien	1693	FRA	−41N	−29B	+78N	+57B	−40N	2.0	10.5	11.5	3.00	1401	-60.8
57	Gibot, Xavier	1456	FRA	+66B	−15N	−19B	−56N	+80B	2.0	10.5	11.5	3.00	918	-21.6
58	Durieux, Arthur	0	FRA	−52B	+68N	−25B	−27N	+81B	2.0	10.0	11.0	3.00	1489	0.0
59	Montay, Jean-Paul	1547	FRA	+62N	−55B	−24N	+75B	−30N	2.0	10.0	11.0	3.00	924	-16.0
60	Tazrout, Ilyass	1441	FRA	+85B	−34N	−18B	−37N	+76B	2.0	10.0	10.5	1.50	891	-23.6
61	Setta, Fabrice	1619	FRA	−44B	−50N	+84B	+67N	−33B	2.0	9.5	10.0	2.50	714	-50.8
62	Berhaut, Antoine	0	FRA	−59B	+79N	−23B	−35N	+74N	2.0	9.0	10.0	2.00	1413	0.0
63	Bui, Guillaume	0	FRA	−49N	+86B	−22N	+74B	−38N	2.0	9.0	9.0	1.00	1385	0.0
64	Le Falher, Francois	1447	FRA	−75N	+77B	−30N	−32B	+72N	2.0	8.0	9.0	2.00	856	-18.4
65	Ors, Bora	1769	FRA	−4N	+39B	+73N	—	—	2.0	7.0	8.0	4.00	1883	+7.6
66	Henry-Hromec, Camille	0	FRA	−57N	+78N	−48B	−49B	+73N	2.0	7.0	8.0	2.00	740	0.0
67	Ancey, Remi	0	FRA	−39N	−72B	+79N	−61B	+75N	2.0	7.0	8.0	2.00	808	0.0
68	Le Goff, Jean-Rene	1462	FRA	−76N	−58B	+86N	−36B	+77N	2.0	7.0	7.0	1.00	865	-9.6
69	Couradin, Jean-marie	1712	FRA	−8N	−10B	=32N	+82B	−46N	1.5	13.5	14.5	2.50	1366	-32.8
70	Belladjou, Ismael	0	FRA	=40B	+71N	−7B	−28N	−55B	1.5	12.0	13.5	3.00	1583	0.0
71	Hajjouj, Mouhcine	1592	FRA	=82N	−70B	−31N	+76B	−43N	1.5	8.0	9.0	1.50	934	-24.4
72	Gabory, Donatien	0	FRA	−53B	+67N	−15B	−40N	−64B	1.0	10.5	12.5	2.00	743	0.0
73	Leonesi, Francis	0	FRA	−35B	+85N	−65B	−38N	−66B	1.0	10.0	10.5	0.50	836	0.0
74	Roltgen, Malo	1549	FRA	−50B	+84N	−9B	−63N	−62B	1.0	10.0	10.5	0.50	1046	-6.0
75	Orfila, Hugo	0	FRA	+64B	−44N	−28B	−59N	−67B	1.0	9.5	11.5	2.00	1424	0.0
76	Hellal, Ayoub	0	FRA	+68B	−48N	−34B	−71N	−60N	1.0	9.0	10.5	2.00	1312	0.0
77	FIDE 527079716	0	—	−54B	−64N	−37B	+86N	−68B	1.0	9.0	9.0	0.00	718	0.0
78	Carbonero, Jean Marc	0	FRA	−38N	−66B	−56B	+84N	−79B	1.0	8.0	8.5	0.50	834	0.0
79	Shao, Matheo	0	FRA	−42N	−62B	−67B	F	+78N	1.0	7.5	7.5	1.00	609	0.0
80	FIDE 527074200	0	—	−10N	F	F	+85B	−57N	1.0	6.5	6.5	0.50	693	0.0
81	Elie, Nicolas	1490	FRA	−51B	F	+85N	−47B	−58N	1.0	6.5	6.5	0.50	924	-8.4
82	Bellabas, Alia	0	FRA	=71B	−51N	F	−69N	=83B	1.0	5.5	5.5	1.00	1459	0.0
83	Wang, Maxime	0	FRA	−36N	F	−39B	−54N	=82N	0.5	9.0	9.0	0.50	796	0.0
84	FIDE 80480438	0	—	−29N	−74B	−61N	−78B	=85N	0.5	7.0	7.5	0.25	764	0.0
85	Orfila, Leila	0	FRA	−60N	−73B	−81B	−80N	=84B	0.5	5.0	5.5	0.25	666	0.0
86	FIDE 544022654	0	—	−33B	−63N	−68B	−77B	F	0.0	8.0	8.0	0.00	643	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Pierron Bejan, NicephoreFRA
+61.2
3.5 pts · #8
2Boukelmoun, WassimFRA
+58.8
4.0 pts · #19
3Alami Messaoudi, WissamFRA
+47.6
4.5 pts · #1

Top rating losers

1Poupeau, JulienFRA
-60.8
2.0 pts · #47
2Sirbi, MichaelFRA
-58.4
2.0 pts · #56
3Setta, FabriceFRA
-50.8
2.0 pts · #64

Biggest upsets

R5+400 Elo gap
Alami Messaoudi, Wissam1784 beat FMLaurent, Julien G.2184
R3+294 Elo gap
Kalman, David1529 beat Roy, Alain1823
R4+263 Elo gap
David, Gauthier1500 beat Sirbi, Michael1763