Open de Noel 2025 du Corsica Chess Club
Open SwissStandard
43 players participated in this 7-round tournament, held from 27 Dec 2025 to 30 Dec 2025 in Bastia, France. 5 titled players. Top 10 Elo average was 2026, and top seed was Pierre-Louis Pieri (🇫🇷 FRA, CM, 2234).
Jean-Michel Bigonnet (🇫🇷 FRA, 2081) won with 6.0/7, ahead of Helio Deladerriere (5.5) and Matteo Ratier-Fontana (5.5). Bigonnet clinched sole first place in the final round.
The biggest upset came in round 3: Helio Deladerriere (1985) beat Apollo Deladerriere (CM, 2199), a +214-point gap.
Location
🇫🇷Bastia, France
Dates
27 Dec 2025 → 30 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Titled players · 5
FM×1
CM×4
Federations · 1 represented
🇫🇷France×40
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsJean-Michel Bigonnet led from R7; +0.5-point edge over the runner-up.
Co-leaders
21
10
4
1
2
1
1
R6 · LEADER CHANGE29 Dec
Helio Deladerriere takes the sole lead (5.5/6).
WIN STREAKS · 2 top finishers
Jean-Michel Bigonnet 3+3 wins (R1–R3, R5–R7)Helio Deladerriere 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jean-Michel Bigonnet | * | — | 1 | — |
| 2CMMatteo Ratier-Fontana | — | * | — | 1 |
| 3Helio Deladerriere | 0 | — | * | 1 |
| 4CMApollo Deladerriere | — | 0 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Bigonnet, Jean-Michel | 2081 | FRA | +18B | +24N | +7B | −9N | +4B | +13N | +2N | 6.0 | 28.0 | 31.0 | 26.50 | 2164 | +15.8 |
| 2 | Deladerriere, Helio | 1985 | FRA | +23B | +17N | +6B | =4N | +5B | +9N | −1B | 5.5 | 29.5 | 33.0 | 24.50 | 2181 | +65.2 |
| 3 | Ratier-Fontana, MatteoCM | 2189 | FRA | +36B | +14N | =5B | +6N | =9B | +7N | =4B | 5.5 | 28.5 | 30.5 | 23.25 | 2177 | +2.8 |
| 4 | Humeau, CyrilFM | 2124 | FRA | +27N | +15B | +11N | =2B | −1N | +10B | =3N | 5.0 | 30.0 | 33.0 | 21.50 | 2042 | -6.4 |
| 5 | Todirascu, Niculai | 1862 | FRA | +29N | +8B | =3N | +11B | −2N | =14B | +15N | 5.0 | 28.5 | 31.5 | 21.25 | 1920 | +9.4 |
| 6 | Deladerriere, ApolloCM | 2199 | FRA | +20N | +10B | −2N | −3B | +27N | +16B | +9B | 5.0 | 27.5 | 30.5 | 19.50 | 2079 | -25.2 |
| 7 | Carrolaggi, Xavier | 1746 | FRA | +21N | +25B | −1N | +16B | +15N | −3B | +14N | 5.0 | 27.0 | 30.0 | 18.50 | 1886 | +15.4 |
| 8 | Giovannoni, Pierre-Mathieu | 1568 | FRA | +38B | −5N | +35B | −12N | +23B | +22N | +13B | 5.0 | 22.5 | 23.5 | 14.00 | 1676 | +21.2 |
| 9 | Guillemart, SergeCM | 2077 | FRA | +31N | +16B | +13N | +1B | =3N | −2B | −6N | 4.5 | 30.0 | 33.0 | 19.75 | 2031 | -1.0 |
| 10 | Savelli De Guido, Luccas | 1644 | FRA | +35B | −6N | =12B | +26B | +19N | −4N | +21B | 4.5 | 24.5 | 26.5 | 14.25 | 1736 | +5.2 |
| 11 | Gerandi, Pierre-Marie | 1764 | FRA | +28B | +19N | −4B | −5N | +31B | +24N | =12B | 4.5 | 24.0 | 27.0 | 14.75 | 1764 | +2.0 |
| 12 | Paris, Lisandre | 1648 | FRA | +33N | =37B | =10N | +8B | −13N | +20B | =11N | 4.5 | 24.0 | 25.5 | 16.25 | 1758 | +32.8 |
| 13 | Geronimi, Paul-Antoine | 1694 | FRA | +32B | +42N | −9B | +17N | +12B | −1B | −8N | 4.0 | 27.0 | 27.0 | 11.50 | 1719 | -1.4 |
| 14 | Morazzani, Gabriel | 1634 | FRA | +34N | −3B | +18N | =19B | +24B | =5N | −7B | 4.0 | 26.0 | 28.5 | 13.75 | 1709 | +18.8 |
| 15 | Gil, Jean-Jacques | 1631 | FRA | +43B | −4N | +23B | +22N | −7B | +17N | −5B | 4.0 | 26.0 | 26.0 | 11.00 | 1670 | +2.4 |
| 16 | Bastiani, Camille | 1582 | FRA | +26B | −9N | +28B | −7N | +35B | −6N | +27B | 4.0 | 23.5 | 25.5 | 11.00 | 1594 | -4.8 |
| 17 | Barq, Matteu | 1580 | FRA | +39N | −2B | +33N | −13B | +29N | −15B | +26N | 4.0 | 22.0 | 23.0 | 9.50 | 967 | -34.0 |
| 18 | Bass, Liam | 1435 | FRA | −1N | +34B | −14B | −35N | +39B | +25N | +24B | 4.0 | 20.5 | 21.5 | 9.50 | 1583 | +18.4 |
| 19 | Franchi, Ange Marie | 1534 | FRA | +40B | −11B | +25N | =14N | −10B | −21B | +29N | 3.5 | 22.5 | 22.5 | 8.00 | 1413 | -14.0 |
| 20 | Costa, Mario | 1469 | FRA | −6B | −35N | +34B | +28N | +25B | −12N | =23B | 3.5 | 21.5 | 23.5 | 10.25 | 960 | -14.0 |
| 21 | Franceschi, Kyllian | 0 | FRA | −7B | −30N | +40B | +36N | =22B | +19N | −10N | 3.5 | 21.5 | 21.5 | 7.25 | 1511 | 0.0 |
| 22 | Paris, Cyrille | 1477 | FRA | −37N | +32B | +38N | −15B | =21N | −8B | +36N | 3.5 | 19.0 | 20.0 | 7.75 | 1442 | -14.8 |
| 23 | Babey, Emmanuel | 0 | FRA | −2N | +41B | −15N | +38B | −8N | +40B | =20N | 3.5 | 19.0 | 19.0 | 2.75 | 1341 | 0.0 |
| 24 | Costa, Laurent Jacques | 1625 | FRA | +41N | −1B | +29N | +27B | −14N | −11B | −18N | 3.0 | 24.5 | 24.5 | 6.00 | 1426 | -60.4 |
| 25 | Palmero Caselli, Ange | 0 | FRA | +30B | −7N | −19B | +32N | −20N | −18B | +40N | 3.0 | 22.0 | 22.0 | 6.00 | 1302 | 0.0 |
| 26 | Babey Saliceti, Joseph | 0 | FRA | −16N | +31B | +30B | −10N | F | +34N | −17B | 3.0 | 21.0 | 21.0 | 8.50 | 1485 | 0.0 |
| 27 | Pietrelle, Christian | 1444 | FRA | −4B | +43N | +42B | −24N | −6B | +35N | −16N | 3.0 | 19.0 | 19.0 | 2.00 | 931 | -14.2 |
| 28 | Castagnerol, Ocean | 0 | FRA | −11N | +39B | −16N | −20B | +33N | −30B | +38N | 3.0 | 18.5 | 19.5 | 4.50 | 788 | 0.0 |
| 29 | Bastiani, Olivier | 0 | FRA | −5B | +40N | −24B | +39N | −17B | +36N | −19B | 3.0 | 18.5 | 18.5 | 3.00 | 1372 | -43.6 |
| 30 | Tiebot, Jean-marc | 1537 | FRA | −25N | +21B | −26N | −33B | F | +28N | +31B | 3.0 | 18.0 | 18.0 | 9.50 | 2230 | +7.0 |
| 31 | Pergola, Lucca | 1400 | FRA | −9B | −26N | +43B | +42N | −11N | +33B | −30N | 3.0 | 17.5 | 17.5 | 2.50 | 910 | -22.0 |
| 32 | Le Dunf, Michel | 0 | FRA | −13N | −22N | F | −25B | +41B | +39N | +35B | 3.0 | 13.5 | 13.5 | 3.00 | 796 | 0.0 |
| 33 | Moualek, Cynthia | 0 | FRA | −12B | +36N | −17B | +30N | −28B | −31N | =34B | 2.5 | 20.0 | 22.0 | 6.25 | 1456 | 0.0 |
| 34 | Savelli De Guido, Laura | 0 | FRA | −14B | −18N | −20N | +41B | +38N | −26B | =33N | 2.5 | 18.0 | 18.0 | 2.25 | 714 | 0.0 |
| 35 | Rieu, Guillaume | 0 | FRA | −10N | +20B | −8N | +18B | −16N | −27B | −32N | 2.0 | 24.0 | 27.0 | 7.50 | 1402 | 0.0 |
| 36 | De Jaegher, Luka | 1451 | FRA | −3N | −33B | +41N | −21B | +40N | −29B | −22B | 2.0 | 18.0 | 18.0 | 0.00 | 871 | -20.4 |
| 37 | Pieri, Pierre-LouisCM | 2234 | FRA | +22B | =12N | F | F | F | F | F | 1.5 | 8.0 | 8.0 | 5.75 | 2027 | -6.8 |
| 38 | FIDE 560022361 | 0 | — | −8N | F | −22B | −23N | −34B | +41N | −28B | 1.0 | 17.5 | 17.5 | 0.00 | 733 | 0.0 |
| 39 | FIDE 544092687 | 0 | — | −17B | −28N | F | −29B | −18N | −32B | +41N | 1.0 | 17.0 | 17.0 | 0.00 | 707 | 0.0 |
| 40 | Savelli De Guido, Romain | 0 | FRA | −19N | −29B | −21N | F | −36B | −23N | −25B | 0.0 | 18.5 | 18.5 | 0.00 | 683 | 0.0 |
| 41 | Albertini, Matteu | 0 | FRA | −24B | −23N | −36B | −34N | −32N | −38B | −39B | 0.0 | 15.0 | 16.0 | 0.00 | 750 | 0.0 |
| 42 | El Jihad, Mounir | 0 | FRA | F | −13B | −27N | −31B | F | F | F | 0.0 | 13.0 | 13.0 | 0.00 | 723 | 0.0 |
| 43 | FIDE 560022370 | 0 | — | −15N | −27B | −31N | F | F | F | F | 0.0 | 10.0 | 10.0 | 0.00 | 701 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Deladerriere, HelioFRA+65.25.5 pts · #5
- 2Paris, LisandreFRA+32.84.5 pts · #8
- 3Giovannoni, Pierre-MathieuFRA+21.25.0 pts · #17
Top rating losers
- 1Costa, Laurent JacquesFRA-60.43.0 pts · #22
- 2Bastiani, OlivierFRA-43.63.0 pts · #24
- 3Barq, MatteuFRA-34.04.0 pts · #31
Biggest upsets
- R3+214 Elo gap
- R7+190 Elo gap
- R7+126 Elo gap