Open Retif 2025-26 (Championnat de la Loire Atlantique) r5

Open SwissStandard

78 players participated in this 1-round tournament, held on 07 Mar 2026 in Chateaubriant, France. Top 10 Elo average was 1918, and top seed was Jean-Francois Vion (🇫🇷 FRA, 1985).

Pierre Riou (🇫🇷 FRA, 1623) won with 1.0/1, ahead of Benjamin Arbellot (1.0) and Pierre Goguely (1.0).

The biggest upset came in round 1: Etienne Garnier (1616) beat Patrick Guihal (1781), a +165-point gap.

Location

🇫🇷Chateaubriant, France

Dates

07 Mar 2026

Time control

Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1

System

Swiss · 1 rounds

Top seed

🇫🇷Jean-Francois Vion1985

Avg top 10

1,918

Participants

Federations · 1 represented

🇫🇷France×76

Top 3

🥇
Pierre Riou
🇫🇷FRA·1623
1.0pts·2371perf+8.4
🥈
Benjamin Arbellot
🇫🇷FRA·1597
1.0pts·2316perf+7.8
🥉
Pierre Goguely
🇫🇷FRA·1775
1.0pts·2634perf+10.6

Grille américaine

#	Player	Elo	Fed	R1	Pts	Bu	SB	Perf	Δ
1	Riou, Pierre	1623	FRA	+60N	1.0	0.0	0.00	2371	+8.4
2	Arbellot, Benjamin	1597	FRA	+56B	1.0	0.0	0.00	2316	+7.8
3	Goguely, Pierre	1775	FRA	+62N	1.0	0.0	0.00	2634	+10.6
4	Sudholt, Mario	1842	FRA	+58B	1.0	0.0	0.00	2495	+5.8
5	Gaudin, Roger	1493	FRA	+65B	1.0	0.0	0.00	2450	+14.4
6	Devaliere, Gwenael	1664	FRA	+50B	1.0	0.0	0.00	2354	+6.8
7	Lunel, Matthieu	1642	FRA	+47B	1.0	0.0	0.00	2479	+17.2
8	Durand, Sylvain	0	FRA	+?B	1.0	0.0	0.00	1684	0.0
9	Chevreau, Gaetan	1732	FRA	+54B	1.0	0.0	0.00	2439	+16.0
10	Douce, Aurelien	1803	FRA	+70N	1.0	0.0	0.00	2362	+7.6
11	Jehenne, Pierre	1646	FRA	+55B	1.0	0.0	0.00	2246	+9.6
12	Galan, Francois	1966	FRA	+66B	1.0	0.0	0.00	2762	+9.2
13	Giraud, Thierry	1819	FRA	+49N	1.0	0.0	0.00	2501	+7.4
14	Seyvet, Clara	1489	FRA	+57N	1.0	0.0	0.00	2434	+21.6
15	Deruyter, Alain	1549	FRA	+52B	1.0	0.0	0.00	2359	+10.8
16	Salliou, Alexis	1591	FRA	+48B	1.0	0.0	0.00	2312	+10.8
17	Bosseboeuf, Ulysse	1622	FRA	+51B	1.0	0.0	0.00	2530	+25.6
18	Richard Bernal, Antoine	1722	FRA	+46B	1.0	0.0	0.00	2449	+16.8
19	Gayon, Benoit	1972	FRA	+45N	1.0	0.0	0.00	2380	+2.0
20	Martini, Lionel	1554	FRA	+61B	1.0	0.0	0.00	2300	+9.4
21	Deyhim, Kamran	1601	FRA	+64B	1.0	0.0	0.00	2469	+12.4
22	Bellenger, Samuel	1543	FRA	+44B	1.0	0.0	0.00	2465	+29.6
23	Chevalier, Esperance	1651	FRA	+63B	1.0	0.0	0.00	2360	+11.6
24	Guenard, Jules	1693	FRA	+59N	1.0	0.0	0.00	2454	+14.4
25	Garnier, Etienne	1616	FRA	+43B	1.0	0.0	0.00	2595	+13.8
26	Gaudet, David	1570	FRA	+69N	1.0	0.0	0.00	2419	+11.2
27	Kiyende Libata, Evan	1627	FRA	+68B	1.0	0.0	0.00	2385	+15.2
28	Jonte Kamela, Erwan	1715	FRA	+67B	1.0	0.0	0.00	2363	+6.8
29	Vion, Jean-Francois	1985	FRA	+53N	1.0	0.0	0.00	2581	+5.8
30	Verdier, Jean-Louis	0	FRA	+?N	1.0	0.0	0.00	1473	0.0
31	Zhang, Mael	0	FRA	+42N	1.0	0.0	0.00	2430	+18.0
32	Higonenq, Bastien	1604	FRA	=39B	0.5	0.5	0.25	1703	+3.6
33	Gain, Florian	1858	FRA	=35N	0.5	0.5	0.25	1914	+1.4
34	Antonov, Avgust	1584	FRA	=36N	0.5	0.5	0.25	1511	-1.8
35	Brunelliere, Gilles	1937	FRA	=33B	0.5	0.5	0.25	1863	-1.4
36	Batou, Yves	1485	FRA	=34B	0.5	0.5	0.25	1579	+3.6
37	Bourdin, Jacky	1927	FRA	=40B	0.5	0.5	0.25	1930	0.0
38	Michel, Sosthene	1474	FRA	=41N	0.5	0.5	0.25	1453	-0.4
39	Boubacar Hamani, Nathan	1728	FRA	=32N	0.5	0.5	0.25	1635	-3.6
40	Primel, Dominique	1911	FRA	=37N	0.5	0.5	0.25	1927	0.0
41	Lauden, Pierre	1463	FRA	=38B	0.5	0.5	0.25	1469	+0.4
42	Primot, Solal	1645	FRA	−31B	0.0	1.0	0.00	868	-18.0
43	Guihal, Patrick	1781	FRA	−25N	0.0	1.0	0.00	857	-13.8
44	Ravonjison, Alain	1644	FRA	−22N	0.0	1.0	0.00	682	-29.6
45	Stephant, Erwan	1577	FRA	−19B	0.0	1.0	0.00	1147	-2.0
46	Ralay, Mathias	1655	FRA	−18N	0.0	1.0	0.00	905	-16.8
47	Sauvaget, Romain	1715	FRA	−7N	0.0	1.0	0.00	926	-17.2
48	Solomovici, Nicolas	1479	FRA	−16N	0.0	1.0	0.00	888	-5.4
49	Daniel, Jean-Claude	1702	FRA	−13B	0.0	1.0	0.00	999	-7.4
50	Leturc, Hubert	1550	FRA	−6N	0.0	1.0	0.00	869	-6.8
51	Jean, Louis-Georges	1728	FRA	−17N	0.0	1.0	0.00	828	-25.6
52	Caillebot, Albin	1557	FRA	−15N	0.0	1.0	0.00	728	-21.6
53	Malaplate, Tristan	1713	FRA	−29B	0.0	1.0	0.00	1140	-11.6
54	Lucas, Maeline	1646	FRA	−9N	0.0	1.0	0.00	912	-8.0
55	Lamy Blanquer, Nathan	1504	FRA	−11N	0.0	1.0	0.00	847	-9.6
56	Kolendowicz, Udo	1494	FRA	−2N	0.0	1.0	0.00	799	-7.8
57	Garay, Louis	1631	FRA	−14B	0.0	1.0	0.00	802	-10.8
58	Schwarz, Gabriel	1680	FRA	−4N	0.0	1.0	0.00	1050	-5.8
59	Da Silva Moine, Thomas	1490	FRA	−24B	0.0	1.0	0.00	956	-14.4
60	Petard, Samuel	1571	FRA	−1B	0.0	1.0	0.00	827	-8.4
61	Miermont, Gerard	1534	FRA	−20N	0.0	1.0	0.00	720	-18.8
62	Martin, Didier	1819	FRA	−3B	0.0	1.0	0.00	1012	-10.6
63	Gayon, Pierre	1567	FRA	−23N	0.0	1.0	0.00	703	-23.2
64	Monfort, Lorick	1703	FRA	−21N	0.0	1.0	0.00	784	-24.8
65	Manteghi, Kian	1623	FRA	−5N	0.0	1.0	0.00	683	-28.8
66	Genereau, Thierry	1961	FRA	−12N	0.0	1.0	0.00	1192	-9.2
67	Rustamova, Maryam	1544	FRA	−28N	0.0	1.0	0.00	1032	-6.8
68	Marquet, Daniel	1595	FRA	−27N	0.0	1.0	0.00	873	-7.6
69	Colas, Bruno	1666	FRA	−26B	0.0	1.0	0.00	778	-11.2
70	Achard, Joan	1575	FRA	−10B	0.0	1.0	0.00	1018	-7.6
71	Achard, Dina	0	FRA	−?B	0.0	0.0	0.00	781	0.0
72	Demeocq, Agathe	0	FRA	−?N	0.0	0.0	0.00	729	0.0
73	Paris, Franck	1413	FRA	−?B	0.0	0.0	0.00	798	0.0
74	McHangama, Omar	0	FRA	−?N	0.0	0.0	0.00	779	0.0
75	Bonnin, Jean Marc	1402	FRA	−?N	0.0	0.0	0.00	981	0.0
76	FIDE 653046161	0	—	−?N	0.0	0.0	0.00	618	0.0
77	Daligny, Cedric	0	FRA	−?N	0.0	0.0	0.00	822	0.0
78	FIDE 560061057	0	—	−?B	0.0	0.0	0.00	730	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Bellenger, SamuelFRA
+29.6
1.0 pts · #22
2Bosseboeuf, UlysseFRA
+25.6
1.0 pts · #17
3Seyvet, ClaraFRA
+21.6
1.0 pts · #14

Top rating losers

1Ravonjison, AlainFRA
-29.6
0.0 pts · #44
2Manteghi, KianFRA
-28.8
0.0 pts · #71
3Jean, Louis-GeorgesFRA
-25.6
0.0 pts · #53

Biggest upsets

R1+165 Elo gap
Garnier, Etienne1616 beat Guihal, Patrick1781
R1+142 Elo gap
Seyvet, Clara1489 beat Garay, Louis1631
R1+130 Elo gap
Gaudin, Roger1493 beat Manteghi, Kian1623