Festival Saint-Lo 2025 - Open Coquereau
SwissStandard
58 players participated in this 9-round tournament, held from 05 Jul 2025 to 11 Jul 2025 in Saint Lo, France. 10 titled players from 8 federations. Top 10 Elo average was 2207, and top seed was Serghei Vedmediuc (🇲🇩 MDA, IM, 2426).
Serghei Vedmediuc (🇲🇩 MDA, IM, 2426) won with 7.5/9, ahead of Jonathan Demanghon (6.5) and Gregoire Pon Le Brun (6.5). Vedmediuc won solo starting round 4.
The biggest upset came in round 2: Arthur Boisson-Chaigneau (2006) beat Vladimir Poley (IM, 2284), a +278-point gap.
Location
🇫🇷Saint Lo, France
Dates
05 Jul 2025 → 11 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 9 rounds
Titled players · 10
IM×2
FM×3
CM×3
WFM×1
WCM×1
Federations · 8 represented
🇫🇷France×47
🇲🇩Moldova×3
🇸🇪Sweden×2
FIDE (no federation)×1
🇵🇱Poland×1
🇷🇴Romania×1
🇨🇭Switzerland×1
🇭🇺Hungary×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsIM Serghei Vedmediuc led from R4; +1.0-point edge over the runner-up.
Co-leaders
19
8
2
1
1
1
1
1
1
R4–R9 · LEAD HELD
IM Serghei Vedmediuc never relinquished the lead after R4; final gap +1.0 over the runner-up.
R9 · HEAD-TO-HEAD · WINNER VS 2ND
IM Serghei Vedmediuc drew with FM Artiom Vedmediuc (Black).
R1–R4 · WIN STREAK
IM Serghei Vedmediuc won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMSerghei Vedmediuc | * | ½ | — | 1 |
| 2FMArtiom Vedmediuc | ½ | * | ½ | — |
| 3Jonathan Demanghon | — | ½ | * | ½ |
| 4Gregoire Pon Le Brun | 0 | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vedmediuc, SergheiIM | 2426 | MDA | +15N | +18B | +10N | +11B | =12N | +3B | =6N | +4B | =5N | 7.5 | 47.5 | 53.0 | 44.00 | 2401 | -0.4 |
| 2 | Demanghon, Jonathan | 2101 | FRA | +23N | +8B | =7N | +25B | =3B | −6N | +17N | =5B | +16N | 6.5 | 47.0 | 51.5 | 36.00 | 2232 | +31.8 |
| 3 | Pon Le Brun, Gregoire | 2128 | FRA | =36N | +20B | +21N | +7B | =2N | −1N | +19B | =16B | +6N | 6.5 | 46.5 | 50.5 | 35.00 | 2185 | +28.0 |
| 4 | Poley, VladimirIM | 2284 | FID | +44B | −7N | +38B | +16N | =6B | +13N | +14B | −1N | +11B | 6.5 | 45.5 | 49.5 | 33.00 | 2217 | -4.3 |
| 5 | Vedmediuc, ArtiomFM | 2269 | ROU | +48N | =34B | =19N | +8B | =10N | +23B | +11B | =2N | =1B | 6.5 | 45.0 | 48.0 | 33.75 | 2225 | -9.9 |
| 6 | Scurtu, Alexandr | 2028 | MDA | =20N | +36B | +17N | +13B | =4N | +2B | =1B | =11N | −3B | 6.0 | 48.5 | 52.5 | 33.75 | 2249 | +50.4 |
| 7 | Boisson-Chaigneau, Arthur | 2006 | FRA | +53N | +4B | =2B | −3N | =22B | =37N | =13B | +35N | +25B | 6.0 | 42.5 | 44.5 | 27.50 | 2183 | +84.0 |
| 8 | Ferreira, Theo | 1974 | FRA | +46B | −2N | +35B | −5N | +38B | =22N | +37B | +21N | =9B | 6.0 | 41.0 | 44.5 | 26.00 | 2130 | +36.2 |
| 9 | Marche, Nael | 2169 | FRA | +29B | +37N | −11B | =28N | +39B | −14N | +30B | +12B | =8N | 6.0 | 40.0 | 44.0 | 27.75 | 2131 | -7.8 |
| 10 | Gebus, MathisFM | 2099 | FRA | +38B | +33N | −1B | +15N | =5B | =17B | −12N | +24N | =14B | 5.5 | 45.0 | 49.0 | 27.25 | 2159 | +28.1 |
| 11 | Cwiek, RyszardCM | 2066 | POL | +47N | +57B | +9N | −1N | +33B | +12B | −5N | =6B | −4N | 5.5 | 45.0 | 46.0 | 22.50 | 2180 | +27.4 |
| 12 | Robert, YoannCM | 2203 | FRA | +30N | +16B | =25N | +45B | =1B | −11N | +10B | −9N | =18B | 5.5 | 44.5 | 48.0 | 27.75 | 2179 | -4.6 |
| 13 | Berthou, Jules | 2117 | FRA | =24B | +50N | +14B | −6N | +28B | −4B | =7N | +33B | =15N | 5.5 | 43.0 | 46.0 | 25.25 | 2071 | -18.4 |
| 14 | Li, Jacque | 1980 | FRA | +54N | =17B | −13N | +20B | +45N | +9B | −4N | =15B | =10N | 5.5 | 43.0 | 45.0 | 24.75 | 2144 | +78.0 |
| 15 | Choteau, Gurvann | 1956 | FRA | −1B | +31N | +46B | −10B | =18N | +42N | +25B | =14N | =13B | 5.5 | 42.5 | 46.0 | 24.75 | 2130 | +80.8 |
| 16 | Ferret-leger, Gaspard | 2001 | FRA | +35B | −12N | +56B | −4B | +40N | +33N | +22B | =3N | −2B | 5.5 | 42.0 | 44.0 | 22.25 | 2113 | +27.0 |
| 17 | Seiger, VidarFM | 2224 | SWE | +52B | =14N | −6B | +41N | +27B | =10N | −2B | =19N | +26B | 5.5 | 41.5 | 44.0 | 23.50 | 2094 | -50.0 |
| 18 | Delalee, Paul | 2055 | FRA | +56N | −1N | −33B | +31N | =15B | =39N | +29B | +23B | =12N | 5.5 | 40.5 | 42.5 | 23.50 | 2083 | +5.8 |
| 19 | Boutolleau, Simon | 1988 | FRA | =49B | +32N | =5B | =22N | =25B | +26N | −3N | =17B | =21B | 5.0 | 42.0 | 45.0 | 23.75 | 2086 | +45.2 |
| 20 | Jousset, Tom | 1867 | FRA | =6B | −3N | +29B | −14N | =24B | +31N | =26B | =27N | +37B | 5.0 | 41.0 | 45.0 | 23.00 | 2025 | +37.0 |
| 21 | Ablin-De Claverie, Nathan | 1835 | FRA | =28B | +26N | −3B | =37N | +41B | =25N | +27B | −8B | =19N | 5.0 | 39.5 | 43.5 | 22.00 | 2057 | +51.8 |
| 22 | Sulyok, Eszter | 2147 | HUN | F | +41B | =34N | =19B | =7N | =8B | −16N | +39N | +30B | 5.0 | 39.0 | 39.0 | 23.00 | 2083 | -14.0 |
| 23 | Viossat, Elwan | 1904 | FRA | −2B | +58N | +55B | =26N | +42B | −5N | =39B | −18N | +35B | 5.0 | 37.0 | 37.0 | 14.25 | 2025 | +53.6 |
| 24 | Oger, Romain | 1911 | FRA | =13N | +42B | −45N | −27B | =20N | +53B | +34N | −10B | +33N | 5.0 | 36.0 | 38.0 | 19.25 | 2042 | +30.6 |
| 25 | Pacteau, Andre | 2079 | FRA | +43N | +51B | =12B | −2N | =19N | =21B | −15N | +41B | −7N | 4.5 | 41.5 | 44.0 | 18.25 | 1978 | -23.8 |
| 26 | Paillard, Eliott | 2017 | FRA | =40N | −21B | +36N | =23B | +50N | −19B | =20N | +38B | −17N | 4.5 | 37.5 | 40.5 | 18.00 | 1930 | -21.2 |
| 27 | Baghdadi, Ali | 2019 | FRA | −33B | =43N | +47B | +24N | −17N | +45B | −21N | =20B | =32B | 4.5 | 36.5 | 39.5 | 18.25 | 1933 | -41.6 |
| 28 | Martinet, Regis | 1998 | FRA | =21N | =40B | +51N | =9B | −13N | =34B | −33N | +47B | =31N | 4.5 | 36.0 | 38.5 | 17.25 | 1943 | -13.2 |
| 29 | Baudin, Frederic | 1919 | FRA | −9N | =53B | −20N | +47B | =36N | +40B | −18N | =44B | +45N | 4.5 | 35.0 | 37.0 | 15.50 | 1957 | +8.4 |
| 30 | Mahaut, Jean | 1936 | FRA | −12B | −46N | +58B | +51N | =34N | +44B | −9N | +45B | −22N | 4.5 | 34.0 | 34.0 | 12.00 | 1988 | +11.6 |
| 31 | Brugel, Hugo | 1869 | FRA | −34N | −15B | +48N | −18B | +55N | −20B | +54N | +51B | =28B | 4.5 | 32.0 | 34.0 | 11.75 | 1927 | +13.4 |
| 32 | Masson, Alexandre | 1874 | FRA | =45N | −19B | −41N | =53B | =46N | =43B | +55N | +40B | =27N | 4.5 | 30.5 | 32.5 | 14.75 | 1920 | +20.8 |
| 33 | Personeni, Marius | 1864 | FRA | +27N | −10B | +18N | +34B | −11N | −16B | +28B | −13N | −24B | 4.0 | 41.5 | 45.5 | 18.50 | 1990 | +58.8 |
| 34 | Talmaci, Arsenie | 2032 | MDA | +31B | =5N | =22B | −33N | =30B | =28N | −24B | =37N | =43N | 4.0 | 38.0 | 42.0 | 18.75 | 1942 | -41.0 |
| 35 | Poley, Maksim | 1838 | SWE | −16N | +48B | −8N | −50B | +43N | +36B | +42N | −7B | −23N | 4.0 | 37.5 | 40.5 | 15.00 | 1913 | +36.4 |
| 36 | Lyandzberg, Anatoly | 1918 | FRA | =3B | −6N | −26B | +46N | =29B | −35N | −38B | +57N | +49B | 4.0 | 36.0 | 37.0 | 13.00 | 1875 | -20.4 |
| 37 | Cerclier, Leo | 1969 | FRA | +55N | −9B | =57N | =21B | +54N | =7B | −8N | =34B | −20N | 4.0 | 36.0 | 37.0 | 12.00 | 1879 | -42.0 |
| 38 | Duroy, Luca | 1898 | FRA | −10N | +54B | −4N | +55B | −8N | =48B | +36N | −26N | =39B | 4.0 | 35.5 | 37.5 | 11.50 | 1943 | +18.0 |
| 39 | Tu, Mathias | 2010 | FRA | −51B | =47N | +43B | +57N | −9N | =18B | =23N | −22B | =38N | 4.0 | 35.0 | 36.0 | 13.75 | 1912 | -45.6 |
| 40 | Martin-Breteau, Paul | 1863 | FRA | =26B | =28N | −42B | +44N | −16B | −29N | +57B | −32N | +47N | 4.0 | 34.5 | 35.5 | 12.50 | 1900 | +18.8 |
| 41 | Lucidarme, Damien | 1957 | FRA | F | −22N | +32B | −17B | −21N | +46B | +48N | −25N | +50B | 4.0 | 34.0 | 34.0 | 14.00 | 1974 | +3.0 |
| 42 | Lefrancois, Jean | 2075 | FRA | =50B | −24N | +40N | +52B | −23N | −15B | −35B | +56N | =44N | 4.0 | 33.0 | 35.0 | 12.00 | 1858 | -101.2 |
| 43 | Charpigny, Louis | 1897 | FRA | −25B | =27B | −39N | =49N | −35B | =32N | +46B | +52N | =34B | 4.0 | 32.0 | 34.5 | 14.00 | 1894 | -0.4 |
| 44 | Deubelbeiss, Rene | 1940 | SUI | −4N | −56B | +53N | −40B | +51B | −30N | +49B | =29N | =42B | 4.0 | 31.0 | 33.0 | 11.75 | 1900 | -11.0 |
| 45 | Nineuil, Vincent | 2062 | FRA | =32B | +49N | +24B | −12N | −14B | −27N | +52B | −30N | −29B | 3.5 | 37.0 | 39.5 | 12.75 | 1876 | -44.8 |
| 46 | Guerin, Sasha | 1819 | FRA | −8N | +30B | −15N | −36B | =32B | −41N | −43N | +58B | +54N | 3.5 | 34.5 | 34.5 | 8.75 | 1807 | -6.8 |
| 47 | Droulout, Paul | 1879 | FRA | −11B | =39B | −27N | −29N | +49B | =57N | +53B | −28N | −40B | 3.0 | 32.0 | 33.0 | 7.50 | 1802 | -18.4 |
| 48 | Maurel, Thibaud | 1939 | FRA | −5B | −35N | −31B | +58N | +57B | =38N | −41B | −50N | =52B | 3.0 | 29.5 | 29.5 | 4.25 | 1775 | -80.4 |
| 49 | Beaurain, Yanis | 1827 | FRA | =19N | −45B | −52N | =43B | −47N | +58B | −44N | +55B | −36N | 3.0 | 28.0 | 28.0 | 6.50 | 1774 | -13.2 |
| 50 | Budak, LoriWCM | 1891 | FRA | =42N | −13B | F | +35N | −26B | F | =51N | +48B | −41N | 3.0 | 27.5 | 27.5 | 10.25 | 1922 | +5.0 |
| 51 | Boshoma, ChisomoWFM | 1859 | RSA | +39N | −25N | −28B | −30B | −44N | F | =50B | −31N | +57B | 2.5 | 30.0 | 30.0 | 6.50 | 1797 | -26.0 |
| 52 | Veron, CyprienCM | 1937 | FRA | −17N | F | +49B | −42N | F | +54B | −45N | −43B | =48N | 2.5 | 25.0 | 25.0 | 6.50 | 1873 | -13.8 |
| 53 | Busnel, Laurent | 1859 | FRA | −7B | =29N | −44B | =32N | +56B | −24N | −47N | −54B | — | 2.0 | 29.0 | 31.0 | 6.50 | 1709 | -30.6 |
| 54 | Cozic, Clement | 1819 | FRA | −14B | −38N | F | +56N | −37B | −52N | −31B | +53N | −46B | 2.0 | 28.0 | 28.0 | 4.00 | 1708 | -44.8 |
| 55 | Schwartz, Timothee | 1816 | FRA | −37B | F | −23N | −38N | −31B | +56N | −32B | −49N | +58B | 2.0 | 27.0 | 27.0 | 2.00 | 1666 | -60.8 |
| 56 | Lhostis, Lucie | 1873 | FRA | −18B | +44N | −16N | −54B | −53N | −55B | +58N | −42B | F | 2.0 | 25.0 | 25.0 | 4.00 | 1710 | -33.8 |
| 57 | Le Goff, Tudy | 1784 | FRA | F | −11N | =37B | −39B | −48N | =47B | −40N | −36B | −51N | 1.0 | 30.0 | 30.0 | 3.50 | 1616 | -28.2 |
| 58 | Zinoun, Said | 1656 | FRA | F | −23B | −30N | −48B | F | −49N | −56B | −46N | −55N | 0.0 | 23.0 | 23.0 | 0.00 | 1073 | -31.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Boisson-Chaigneau, ArthurFRA+84.06.0 pts · #9
- 2Choteau, GurvannFRA+80.85.5 pts · #18
- 3Li, JacqueFRA+78.05.5 pts · #12
Top rating losers
- 1Lefrancois, JeanFRA-101.24.0 pts · #40
- 2Maurel, ThibaudFRA-80.43.0 pts · #49
- 3Schwartz, TimotheeFRA-60.82.0 pts · #54
Biggest upsets
- R2+278 Elo gap
- R7+237 Elo gap
- R3+196 Elo gap