Quatrieme Open lent du Quercy Blanc
Open SwissStandard
36 players participated in this 9-round tournament, held from 13 Jul 2025 to 19 Jul 2025 in Castelnau Montratier, France. 2 titled players. Top 10 Elo average was 1921, and top seed was Eric Prie (🇫🇷 FRA, GM, 2327).
Olivier Touzane (🇫🇷 FRA, IM, 2154) won with 8.0/9, ahead of Eric Prie (7.0) and Mark Quartermain (6.0). Touzane shared the lead from round 6 and won solo starting round 7.
The biggest upset came in round 9: Matyss Joanez (1531) beat Herve Zabe (1753), a +222-point gap.
Location
🇫🇷Castelnau Montratier, France
Dates
13 Jul 2025 → 19 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 2
GM×1
IM×1
Federations · 1 represented
🇫🇷France×36
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsIM Olivier Touzane led from R3; +1.0-point edge over the runner-up.
Co-leaders
16
7
1
1
1
2
1
1
1
R5 · LEADER CHANGE16 Jul
Jorge Devecchi takes the sole lead (4.5/5).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
IM Olivier Touzane lost to GM Eric Prie (White).
WIN STREAKS · 3 top finishers
IM Olivier Touzane 4+4 wins (R1–R4, R6–R9)GM Eric Prie 7 wins (R1–R9)Layne Dollon 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMOlivier Touzane | * | 0 | 1 | 1 |
| 2GMEric Prie | 1 | * | — | 1 |
| 3Layne Dollon | 0 | — | * | — |
| 4Manuel Larand | 0 | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Touzane, OlivierIM | 2154 | FRA | +5N | +9B | +12N | +4B | −2B | +6N | +7B | +3N | +8N | 8.0 | 47.0 | 51.5 | 44.50 | 2231 | +8.0 |
| 2 | Prie, EricGM | 2327 | FRA | +17B | +7N | F | +8B | +1N | F | +6B | +4N | +12N | 7.0 | 39.5 | 39.5 | 39.50 | 2769 | +7.9 |
| 3 | Quartermain, Mark | 1710 | FRA | +31B | −6N | +24B | +15N | −7B | +9B | +5N | −1B | +14N | 6.0 | 43.0 | 46.0 | 27.00 | 1833 | +24.0 |
| 4 | Larand, Manuel | 1972 | FRA | +18B | +13N | =6B | −1N | +22B | +12N | +29B | −2B | =7N | 6.0 | 42.5 | 45.5 | 25.00 | 1981 | +4.8 |
| 5 | Dollon, Layne | 1627 | FRA | −1B | +28N | −21B | +24N | +18B | +16N | −3B | +19N | +10B | 6.0 | 38.5 | 41.5 | 24.00 | 1805 | +86.0 |
| 6 | Devecchi, Jorge | 1947 | FRA | +25N | +3B | =4N | +23B | +13N | −1B | −2N | −8B | +18N | 5.5 | 44.5 | 47.5 | 24.00 | 1934 | -0.4 |
| 7 | Baquer, Marc | 1792 | FRA | +33N | −2B | +25N | +14B | +3N | +8B | −1N | −12B | =4B | 5.5 | 44.5 | 46.0 | 23.50 | 1871 | +14.8 |
| 8 | Lemascon, Hugo | 1866 | FRA | +21B | +19N | =16B | −2N | +27B | −7N | +15B | +6N | −1B | 5.5 | 42.5 | 45.5 | 22.75 | 1901 | +9.6 |
| 9 | Rabier, Jean | 1753 | FRA | +28B | −1N | +18B | +29N | =12B | −3N | =19B | =10N | +15B | 5.5 | 39.0 | 42.0 | 21.25 | 1793 | +8.8 |
| 10 | Bieth, Paul | 1666 | FRA | +27N | −29B | −14N | +25B | +26N | =13B | +23N | =9B | −5N | 5.0 | 33.0 | 36.0 | 17.50 | 1733 | +29.6 |
| 11 | Joanez, Matyss | 1531 | FRA | −29N | −27B | −34N | +35B | +25N | +33B | −14B | +26N | +23B | 5.0 | 23.0 | 24.0 | 12.00 | 1718 | +72.0 |
| 12 | Poissonnier, Lisea | 1661 | FRA | +36B | +22N | −1B | F | =9N | −4B | +13N | +7N | −2B | 4.5 | 44.5 | 45.0 | 16.75 | 1866 | +66.0 |
| 13 | Busson, Philippe | 1740 | FRA | +35B | −4B | +20N | +21N | −6B | =10N | −12B | −15N | +22B | 4.5 | 36.5 | 37.5 | 14.50 | 1680 | -27.6 |
| 14 | Banon, Aurelien | 0 | FRA | =22B | =17N | +10B | −7N | =19B | F | +11N | +30N | −3B | 4.5 | 36.5 | 36.5 | 19.00 | 1679 | 0.0 |
| 15 | Misik, Jean-Marc | 1667 | FRA | +34B | =16N | −23N | −3B | +32N | +26B | −8N | +13B | −9N | 4.5 | 35.0 | 36.5 | 13.75 | 1678 | +2.4 |
| 16 | Augereau, Cyrille | 1838 | FRA | +20N | =15B | =8N | F | F | −5B | =17N | +31B | +30N | 4.5 | 35.0 | 35.0 | 17.25 | 1721 | -16.6 |
| 17 | Alard, Pierre | 1648 | FRA | −2N | =14B | −32N | +28B | +21B | −19N | =16B | =23N | +25N | 4.5 | 33.0 | 35.5 | 15.75 | 1698 | +9.0 |
| 18 | Offort, Louis Alyster | 1595 | FRA | −4N | +30B | −9N | +20B | −5N | F | +21B | +22N | −6B | 4.0 | 37.0 | 37.0 | 14.00 | 1702 | +38.8 |
| 19 | Natale, Bruno | 1717 | FRA | +26N | −8B | −27N | +32B | =14N | +17B | =9N | −5B | — | 4.0 | 32.0 | 34.5 | 15.00 | 1630 | -15.0 |
| 20 | Martinez, Alberto | 1554 | FRA | −16B | +31N | −13B | −18N | −24B | −25B | +36N | +35N | +26B | 4.0 | 26.5 | 27.0 | 7.50 | 1493 | -15.4 |
| 21 | Basquin, Didier | 1559 | FRA | −8N | +26B | +5N | −13B | −17N | =34B | −18N | +27B | −24N | 3.5 | 34.0 | 35.5 | 12.75 | 1526 | -7.6 |
| 22 | Darre, Alain | 1682 | FRA | =14N | −12B | +33N | +30B | −4N | −23B | +24N | −18B | −13N | 3.5 | 33.5 | 35.0 | 10.25 | 1580 | -24.0 |
| 23 | Zabe, Herve | 1753 | FRA | +32N | F | +15B | −6N | −29B | +22N | −10B | =17B | −11N | 3.5 | 33.5 | 33.5 | 12.75 | 1656 | -21.2 |
| 24 | Itier, Zacharie | 1574 | FRA | F | =32B | −3N | −5B | +20N | F | −22B | +28N | +21B | 3.5 | 28.5 | 28.5 | 11.75 | 1603 | +10.0 |
| 25 | Rouqual, Guy | 1575 | FRA | −6B | +35N | −7B | −10N | −11B | +20N | −26B | +33N | −17B | 3.0 | 34.0 | 35.0 | 6.50 | 1485 | -22.8 |
| 26 | Weber, Serge | 1427 | FRA | −19B | −21N | +28B | +36N | −10B | −15N | +25N | −11B | −20N | 3.0 | 32.0 | 32.5 | 6.50 | 1393 | -21.6 |
| 27 | Ladevese, Noe | 0 | FRA | −10B | +11N | +19B | F | −8N | F | −30B | −21N | +32B | 3.0 | 28.5 | 28.5 | 11.50 | 1589 | +54.8 |
| 28 | Thomas, Rachel | 1455 | FRA | −9N | −5B | −26N | −17N | +36B | F | +33N | −24B | +35B | 3.0 | 25.5 | 25.5 | 3.00 | 1408 | -9.4 |
| 29 | David, Pierre-Yves | 1807 | FRA | +11B | +10N | F | −9B | +23N | F | −4N | — | — | 3.0 | 25.0 | 25.0 | 13.50 | 1804 | +0.8 |
| 30 | Itier, Cassandre | 1563 | FRA | F | −18N | +36B | −22N | +31B | F | +27N | −14B | −16B | 3.0 | 23.0 | 23.0 | 6.50 | 1523 | -8.0 |
| 31 | Ladeveze, Geraldine | 1422 | FRA | −3N | −20B | +35B | F | −30N | F | +32B | −16N | +33B | 3.0 | 22.5 | 22.5 | 5.00 | 1554 | +34.4 |
| 32 | Offort, Alexandre | 1444 | FRA | −23B | =24N | +17B | −19N | −15B | F | −31N | +36B | −27N | 2.5 | 26.5 | 26.5 | 6.75 | 1372 | -100.8 |
| 33 | Aliaga, Benoit | 1496 | FRA | −7B | =36N | −22B | F | +35N | −11N | −28B | −25B | −31N | 1.5 | 24.5 | 24.5 | 1.25 | 1246 | -80.8 |
| 34 | Derrien, Yann | 0 | FRA | −15N | F | +11B | F | F | =21N | — | — | — | 1.5 | 13.0 | 13.0 | 6.75 | 1577 | 0.0 |
| 35 | Leroux, Guy | 1430 | FRA | −13N | −25B | −31N | −11N | −33B | +36N | F | −20B | −28N | 1.0 | 24.5 | 24.5 | 0.50 | 739 | -50.0 |
| 36 | Dollon, Ayden | 0 | FRA | −12N | =33B | −30N | −26B | −28N | −35B | −20B | −32N | F | 0.5 | 22.5 | 22.5 | 0.75 | 1086 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Dollon, LayneFRA+86.06.0 pts · #3
- 2Joanez, MatyssFRA+72.05.0 pts · #10
- 3Poissonnier, LiseaFRA+66.04.5 pts · #18
Top rating losers
- 1Offort, AlexandreFRA-100.82.5 pts · #32
- 2Aliaga, BenoitFRA-80.81.5 pts · #34
- 3Leroux, GuyFRA-50.01.0 pts · #36
Biggest upsets
- R9+222 Elo gap
- R6+211 Elo gap
- R3+204 Elo gap