23e Open de Bourgoin-Jallieu - Accession (-1650)

Open SwissStandard

46 players participated in this 5-round tournament, held from 13 Sept 2025 to 14 Sept 2025 in Bourgoin Jallieu, France. 2 federations represented. Top 10 Elo average was 1607, and top seed was Claude Bovis (🇫🇷 FRA, 1641).

Florent Sagnard (🇫🇷 FRA, 1627) won with 5.0/5, ahead of Thomas Croce (4.5) and Mathias Benoist (4.0). Sagnard won solo starting round 4.

The biggest upset came in round 5: Bruno De Gassart (1455) beat Alex-Henri Esbelin (1612), a +157-point gap.

Location

🇫🇷Bourgoin Jallieu, France

Dates

13 Sept 2025 → 14 Sept 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇫🇷Claude Bovis1641

Avg top 10

1,607

Participants

Federations · 2 represented

🇫🇷France×42

🇨🇭Switzerland×1

Top 3

🥇
Florent Sagnard
🇫🇷FRA·1627
5.0pts·2309perf+34.2
🥈
Thomas Croce
🇫🇷FRA·1582
4.5pts·1814perf+31.2
🥉
Mathias Benoist
🇫🇷FRA·1610
4.0pts·1744perf+31.2

How it unfolded

Top 6 · 5 rounds

Florent Sagnard led from R4; +0.5-point edge over the runner-up.

Co-leaders

Sagnard5Croce4.5Jouanteguy4Benoist4Naturel4Findeling Creus3.5

R4–R5 · LEAD HELD

Florent Sagnard held the sole lead from R4 through R5 without losing it.

R1–R5 · WIN STREAK

Florent Sagnard won 5 in a row (R1–R5).

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Sagnard, Florent	1627	FRA	+27B	+19N	+6B	+10N	+7B	5.0	13.0	15.0	15.00	2309	+34.2
2	Croce, Thomas	1582	FRA	+30B	+13N	=12B	+14N	+11B	4.5	12.0	14.0	12.50	1814	+31.2
3	Benoist, Mathias	1610	FRA	+18N	−6B	+28N	+12N	+10B	4.0	12.5	14.5	11.00	1744	+31.2
4	Naturel, Philippe	1595	FRA	+38B	−10N	+30B	+20N	+13B	4.0	11.0	12.5	9.50	1475	-6.4
5	Jouanteguy, Florent	0	FRA	=34N	+36B	=23N	+?B	+15B	4.0	8.5	8.5	6.50	1576	0.0
6	Jeronymo, Mathis	1533	FRA	+39B	+3N	−1N	+29B	=8N	3.5	14.5	15.5	8.75	1725	+31.2
7	Aubier, Garry	1503	SUI	+41B	+17N	=16B	+22N	−1N	3.5	13.5	14.5	8.00	1683	+39.2
8	Findeling Creus, Anais	0	FRA	+15B	+35N	=22B	=11N	=6B	3.5	12.0	13.5	9.00	1604	0.0
9	Peter, Lionel	1510	FRA	+46B	=11N	−14B	+23B	+22N	3.5	11.0	11.0	6.50	1672	+17.4
10	Contant, Nathan	1514	FRA	+32N	+4B	+29N	−1B	−3N	3.0	15.0	17.0	8.00	1599	+9.2
11	Sillero, Pierre	1587	FRA	+31N	=9B	+25N	=8B	−2N	3.0	14.0	16.0	8.00	1608	+2.0
12	Pernoud, Claire	1516	FRA	+45B	+24N	=2N	−3B	=17B	3.0	14.0	14.5	6.75	1597	+10.0
13	Croce, Pierre	1507	FRA	+?N	−2B	+32N	+25B	−4N	3.0	13.0	13.0	4.50	1449	0.0
14	Peter, Samuel	1533	FRA	=40N	+34B	+9N	−2B	=18N	3.0	12.5	13.5	7.00	1609	+16.4
15	Heydel, Arthur	1541	FRA	−8N	+40B	+21N	+27B	−5N	3.0	12.5	13.5	6.00	2258	+30.8
16	Perez, Quentin	1634	FRA	+26N	=25B	=7N	−19B	+27N	3.0	11.5	13.5	7.50	1574	-7.6
17	Brasseur, Franck	1572	FRA	+33N	−7B	=18N	+36B	=12N	3.0	11.5	13.0	6.50	1543	-3.6
18	Ammi, Alexandre	1460	FRA	−3B	+39N	=17B	+35N	=14B	3.0	11.5	12.5	5.50	1581	+24.8
19	Silvestre, Benoit	1535	FRA	+44N	−1B	+31N	+16N	—	3.0	10.0	11.0	6.00	1673	+10.8
20	Fichant, Gurvan	0	FRA	+?N	−29B	+34N	−4B	+28N	3.0	9.5	9.5	3.50	1538	0.0
21	De Gassart, Bruno	1455	FRA	−24B	+45N	−15B	+37N	+35B	3.0	8.5	9.0	3.50	1464	+0.8
22	El Sayad, Youssef	1547	FRA	+37N	+23B	=8N	−7B	−9B	2.5	13.0	14.5	5.75	1426	-19.6
23	Bovis, Claude	1641	FRA	+28B	−22N	=5B	−9N	+34B	2.5	12.0	13.5	5.50	1512	-14.0
24	Kolomytzeff, Loan	1609	FRA	+21N	−12B	−27N	+33B	=26N	2.5	10.5	12.5	6.25	1463	-40.4
25	Pillard, Romain	1535	FRA	+42B	=16N	−11B	−13N	+36B	2.5	10.5	11.5	4.00	1552	+2.8
26	Volle, Loic	1478	FRA	−16B	−42N	+39B	+43N	=24B	2.5	7.5	8.5	3.25	1417	-5.6
27	Valenza, Margot	1465	FRA	−1N	+44B	+24B	−15N	−16B	2.0	13.5	14.5	3.50	1404	-5.6
28	Chenot, Catherine	1497	FRA	−23N	+37B	−3B	+30N	−20B	2.0	11.5	13.0	3.50	826	-13.2
29	Marillach, Meloe	1562	FRA	+43B	+20N	−10B	−6N	−31B	2.0	11.5	12.5	4.00	687	-72.4
30	Hermann, Gerard	1406	FRA	−2N	+?B	−4N	−28B	+46N	2.0	10.5	10.5	0.00	762	0.0
31	Vidal Carlier, Marie-Laure	1415	FRA	−11B	+46N	−19B	F	+29N	2.0	9.0	9.0	2.00	1437	+2.0
32	Gusta, Maxime	0	FRA	−10B	+38N	−13B	+41N	−?N	2.0	8.5	8.5	2.50	1340	0.0
33	Aubier, Ilyas	0	FRA	−17B	=41N	=38B	−24N	+43B	2.0	8.0	9.0	2.25	1267	-20.0
34	Volle, Eliam	1498	FRA	=5B	−14N	−20B	+39N	−23N	1.5	12.5	13.5	3.00	786	-29.6
35	Esbelin, Alex-Henri	1612	FRA	=36N	−8B	+40N	−18B	−21N	1.5	11.0	12.0	1.75	1189	-32.2
36	Maillot, Clemence	1463	FRA	=35B	−5N	+41B	−17N	−25N	1.5	11.0	12.0	1.75	1300	-22.4
37	Dao, Duc Nam	0	FRA	−22B	−28N	+45B	−21B	=40N	1.5	8.5	9.0	1.00	701	0.0
38	Bertolo, Alix	1427	FRA	−4N	−32B	=33N	+40B	—	1.5	8.0	9.0	2.00	1313	-12.8
39	FIDE 80455913	0	—	−6N	−18B	−26N	−34B	+45B	1.0	10.5	11.0	0.50	691	0.0
40	Chabanne Skala, Mael	0	FRA	=14B	−15N	−35B	−38N	=37B	1.0	9.0	10.5	2.25	1208	0.0
41	FIDE 527056147	0	—	−7N	=33B	−36N	−32B	=?N	1.0	9.0	9.0	1.00	1187	0.0
42	Millier, Roxanne	0	FRA	−25N	+26B	−?N	F	—	1.0	7.0	7.0	2.50	1361	0.0
43	Caillot, Thierry	0	FRA	−29N	−?B	+?N	−26B	−33N	1.0	6.5	6.5	0.00	676	0.0
44	Thomas, Antoine	0	FRA	−19B	−27N	+46B	—	—	1.0	5.0	5.0	0.00	699	0.0
45	FIDE 653049470	0	—	−12N	−21B	−37N	=?B	−39N	0.5	8.5	8.5	0.00	680	0.0
46	Heydel, Quentin	0	FRA	−9N	−31B	−44N	F	−30B	0.0	8.5	8.5	0.00	662	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Aubier, GarrySUI
+39.2
3.5 pts · #8
2Sagnard, FlorentFRA
+34.2
5.0 pts · #1
3Benoist, MathiasFRA
+31.2
4.0 pts · #3

Top rating losers

1Marillach, MeloeFRA
-72.4
2.0 pts · #43
2Kolomytzeff, LoanFRA
-40.4
2.5 pts · #11
3Esbelin, Alex-HenriFRA
-32.2
1.5 pts · #34

Biggest upsets

R5+157 Elo gap
De Gassart, Bruno1455 beat Esbelin, Alex-Henri1612
R4+152 Elo gap
Ammi, Alexandre1460 beat Esbelin, Alex-Henri1612
R5+147 Elo gap
Vidal Carlier, Marie-Laure1415 beat Marillach, Meloe1562