24e Open de Bourgoin-Jallieu - principal (-2400)

Open SwissStandard

72 players participated in this 5-round tournament, held from 13 Sept 2025 to 14 Sept 2025 in Bourgoin Jallieu, France. 3 titled players from 5 federations. Top 10 Elo average was 2051, and top seed was Ethan Saya (🇫🇷 FRA, FM, 2278).

Christophe Gelas (🇫🇷 FRA, FM, 2269) won with 5.0/5, ahead of Ethan Saya (4.5) and Bernard Billiard (4.0). Gelas broke clear in the final round.

The biggest upset came in round 5: Edouard Nguyen (1618) beat Yamina Seite (1883), a +265-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

🇫🇷FMEthan Saya2278

Avg top 10

2,051

Participants

Titled players · 3

FM×2

WCM×1

Federations · 5 represented

🇫🇷France×68

FIDE (no federation)×1

🇺🇦Ukraine×1

🇮🇱Israel×1

🇨🇭Switzerland×1

Top 3

🥇
FMChristophe Gelas
🇫🇷FRA·2269
5.0pts·2763perf+15.2
🥈
FMEthan Saya
🇫🇷FRA·2278
4.5pts·2251perf-1.6
🥉
Bernard Billiard
🇫🇷FRA·2087
4.0pts·2181perf+12.6

How it unfolded

Top 6 · 5 rounds

FM Christophe Gelas led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Gelas5Saya4.5Oberfalcer4Billiard4Jeanbart4Puydt4

R5–R5 · LEAD HELD

FM Christophe Gelas held the sole lead from R5 through R5 without losing it.

WIN STREAKS · 2 top finishers

FM Christophe Gelas 5 wins (R1–R5)Nathan Oberfalcer 3 wins (R3–R5)

R3 · LATE SURGE

Nathan Oberfalcer was #13 at R3, climbed to #3 over the final stretch.

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMChristophe Gelas	*	—	—	1
2FMEthan Saya	—	*	—	—
3Nathan Oberfalcer	—	—	*	—
4Bernard Billiard	0	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Gelas, ChristopheFM	2269	FRA	+41N	+18B	+19N	+12B	+3N	5.0	13.5	15.5	15.50	2763	+15.2
2	Saya, EthanFM	2278	FRA	+63B	+5N	=16B	+17B	+13N	4.5	13.5	14.5	13.00	2251	-1.6
3	Billiard, Bernard	2087	FRA	+46B	+23N	+44B	+7N	−1B	4.0	14.0	16.0	11.00	2181	+12.6
4	Muller, Maxime	2070	FRA	+33N	=13B	+36N	+14B	=12N	4.0	13.0	15.5	12.00	2091	+3.4
5	Slawinski, Robin	1868	FRA	+66N	−2B	+33N	+26B	+27N	4.0	13.0	14.0	9.50	2104	+55.2
6	Oberfalcer, Nathan	1828	FRA	+43N	−7B	+38N	+19B	+17N	4.0	12.5	14.5	10.50	2035	+26.6
7	Puydt, Gilles	1959	FRA	+58B	+6N	+56B	−3B	+20N	4.0	12.5	14.0	10.00	2087	+15.6
8	Jehan, Julien	1989	FRA	+47N	+20B	−17N	+28B	+18N	4.0	12.0	14.0	11.00	2066	+8.8
9	Chappuis, Baptiste	1812	FRA	+64B	+37N	=21B	=16N	+34B	4.0	11.0	12.0	9.00	2077	+33.6
10	Jeanbart, Pierre	1899	FRA	+29B	−22N	+58B	+56N	+25B	4.0	10.5	12.0	9.00	1987	+10.0
11	Renous, Paulin	1765	FRA	−42B	+51N	+60B	+23N	+16B	4.0	10.0	11.5	9.50	2553	+76.8
12	Bislimi, Bardhyl	2031	FRA	+49B	+25N	+24B	−1N	=4B	3.5	15.0	17.0	10.00	2086	+9.0
13	Sere, Philemon	1852	FRA	+30B	=4N	+22B	+21N	−2B	3.5	14.5	17.5	11.00	2076	+28.0
14	Lequang, Enzo	1867	FRA	=35B	+42N	+57B	−4N	+37B	3.5	11.0	12.5	7.25	1918	+11.6
15	Aubier, Lorys	1922	SUI	−45B	+59N	+63B	=34N	+35B	3.5	8.5	9.5	6.25	1828	-18.0
16	Verdier, Anais	1903	FRA	+71N	+26B	=2N	=9B	−11N	3.0	15.5	15.5	7.25	1936	+6.8
17	Lucotte, Jocelyn	1890	FRA	+51B	+45N	+8B	−2N	−6B	3.0	14.5	16.5	8.00	1958	+8.0
18	Candegabe, Victor	1878	FRA	+50B	−1N	+45B	+22N	−8B	3.0	14.0	16.0	7.00	1938	+13.2
19	Bislimi, Agron	1947	FRA	+52B	+34N	−1B	−6N	+36N	3.0	14.0	16.0	7.00	1924	-3.8
20	Zennaf, Karim	1849	FRA	+40B	−8N	+29B	+44N	−7B	3.0	13.5	15.5	7.50	1893	+7.2
21	Saya, Yann	1953	FRA	+70N	+28B	=9N	−13B	=31N	3.0	13.5	14.5	7.50	1889	-15.6
22	Jegourel, Hai Dang	1743	FRA	+68N	+10B	−13N	−18B	+42N	3.0	12.5	13.5	7.00	1752	+1.6
23	Aubier, Florent	1863	FRA	+72N	−3B	+43N	−11B	+48N	3.0	12.0	12.0	4.00	1804	-6.2
24	Naville, Lea	1785	FRA	+65N	+31B	−12N	−27B	+43N	3.0	11.5	12.5	6.00	1873	+12.4
25	Tran, Minh-Theo	1852	FRA	+69N	−12B	+48N	+41B	−10N	3.0	11.5	12.5	5.00	1845	+0.8
26	Manouvel, MaelysWCM	1790	FRA	+54B	−16N	+42B	−5N	+53B	3.0	11.0	13.0	6.00	1690	-16.0
27	Pizon, Edwin	1904	FRA	+53B	−56N	+49B	+24N	−5B	3.0	11.0	12.5	7.00	1834	-17.2
28	Mocquet Lesourd, Gabriel	1814	FRA	+60B	−21N	+64B	−8N	+52B	3.0	10.5	11.5	4.50	1782	-5.6
29	Poche, Denis	1669	FRA	−10N	+68B	−20N	+65B	+41N	3.0	10.0	11.0	4.00	1758	+8.8
30	Nguyen, Edouard	1618	FRA	−13N	−33B	+71N	+49N	+44B	3.0	10.0	10.0	4.00	1840	+58.4
31	Benouaret, Idir	1914	FRA	+67B	−24N	=46B	+57N	=21B	3.0	9.5	10.5	5.00	1832	-9.6
32	Caillot, Charles	1895	FRA	=57N	=38B	−41N	+61B	+50N	3.0	8.0	9.5	5.50	1742	-35.6
33	Pawar, Paarth	1719	FRA	−4B	+30N	−5B	=62N	+59B	2.5	12.5	14.0	5.25	1744	+2.8
34	Gastaldo, Gabin	1813	FRA	+48N	−19B	+65N	=15B	−9N	2.5	12.5	13.5	4.75	1765	-10.8
35	Couturier, Georges	1636	FRA	=14N	−36B	+40N	+39B	−15N	2.5	12.0	14.5	6.75	1794	+20.0
36	Van Straaten, Patrick	1783	ISR	=59B	+35N	−4B	+46N	−19B	2.5	11.5	13.0	5.25	1780	-0.8
37	Sagnard, Emil	1924	FRA	+55N	−9B	=61N	+47B	−14N	2.5	11.5	13.0	4.75	1759	-42.4
38	Jamond, Corentin	1582	FID	=39B	=32N	−6B	+67N	=56B	2.5	11.0	12.0	4.50	1792	+52.8
39	Roger, Nicolas	1792	FRA	=38N	−57B	+54B	−35N	+62B	2.5	8.5	10.0	4.75	1543	-54.4
40	Soubeyrand, Mathis	1605	FRA	−20N	=47B	−35B	+64N	+63B	2.5	8.5	9.5	3.00	1702	+12.6
41	Alachtar, Socrate	1730	FRA	−1B	+50N	+32B	−25N	−29B	2.0	14.0	16.0	5.00	1766	+2.2
42	Rosaz, Thibaut	0	FRA	+11N	−14B	−26N	+51N	−22B	2.0	13.5	15.5	6.00	1691	0.0
43	Remy, Laurent	1599	FRA	−6B	+52N	−23B	+58N	−24B	2.0	12.0	13.5	3.50	1601	-0.4
44	Seite, Yamina	1883	FRA	+62N	+61B	−3N	−20B	−30N	2.0	11.5	13.0	3.00	1715	-22.2
45	Rosier, Yanael	1686	FRA	+15N	−17B	−18N	−48B	+64N	2.0	11.5	12.5	4.50	1703	+2.0
46	Paret, Alain	1729	FRA	−3N	+66B	=31N	−36B	=47N	2.0	11.5	12.5	3.50	1752	+1.2
47	Roongsaeng, Kasemsak	1699	FRA	−8B	=40N	+59B	−37N	=46B	2.0	11.0	12.5	3.75	1681	-7.2
48	Rosselet, Mathieu	1591	FRA	−34B	+67N	−25B	+45N	−23B	2.0	10.5	11.5	3.00	1706	+26.8
49	Giafferi Bonnet, Luna	1711	FRA	−12N	+72B	−27N	−30B	+66N	2.0	10.5	10.5	1.00	1690	-9.6
50	Haberer, Thimothe	1643	FRA	−18N	−41B	+55N	+63N	−32B	2.0	10.0	11.0	3.00	1713	+16.8
51	Du Roscoat, Come	1650	FRA	−17N	−11B	+68N	−42B	+65N	2.0	10.0	11.0	2.00	1612	-6.8
52	Fouilleul, Nahuel	0	FRA	−19N	−43B	+66N	+60B	−28N	2.0	9.5	10.5	2.50	1647	0.0
53	Rochette, Nicolas	1674	FRA	−27N	−65B	+69N	+54B	−26N	2.0	9.0	10.0	3.00	1524	-31.6
54	Brumant, Matthias	0	FRA	−26N	+71B	−39N	−53N	+67B	2.0	8.5	8.5	1.00	1648	0.0
55	Zakrevskyi, Alex	1688	FRA	−37B	−64N	−50B	+72N	+69B	2.0	6.5	6.5	1.00	1607	-22.8
56	Robert, Thierry	1773	FRA	F	+27B	−7N	−10B	=38N	1.5	13.5	13.5	4.25	1749	-3.2
57	Wang, Emma	1662	FRA	=32B	+39N	−14N	−31B	−61N	1.5	12.0	13.5	4.00	1692	+5.6
58	Mosegui, Christophe	1698	FRA	−7N	+69B	−10N	−43B	=60N	1.5	11.5	12.5	1.75	1585	-16.2
59	Payadopulos, Elias	1530	FRA	=36N	−15B	−47N	+70B	−33N	1.5	10.5	11.5	2.25	1614	+18.4
60	Esbelin, Pierre	1595	FRA	−28N	+70B	−11N	−52N	=58B	1.5	10.5	11.5	1.75	1656	+5.6
61	Savchenko, Iryna	1736	UKR	F	−44N	=37B	−32N	+57B	1.5	9.0	9.0	2.75	1754	+2.0
62	Drouin, Colin	1645	FRA	−44B	−63N	+70N	=33B	−39N	1.5	8.0	9.0	2.25	1617	-7.6
63	Guillon, Gabriel	1738	FRA	−2N	+62B	−15N	−50B	−40N	1.0	12.5	14.0	1.50	1551	-25.6
64	Armes, Timothy	1585	FRA	−9N	+55B	−28N	−40B	−45B	1.0	11.5	13.5	2.00	1480	-13.2
65	Feuvrier, Julien	1555	FRA	−24B	+53N	−34B	−29N	−51B	1.0	10.5	12.5	2.00	1478	-8.8
66	Gastaldo, Agathe	1638	FRA	−5B	−46N	−52B	+68N	−49B	1.0	10.0	11.0	1.00	969	-39.6
67	Remy, Arthur	1678	FRA	−31N	−48B	+72N	−38B	−54N	1.0	9.5	9.5	0.00	1483	-40.8
68	Thomas, Leonard	0	FRA	−22B	−29N	−51B	−66B	+71N	1.0	9.0	9.0	0.00	1434	0.0
69	Carre, Adrien	1617	FRA	−25B	−58N	−53B	+71B	−55N	1.0	8.5	8.5	0.00	1476	-34.0
70	Broteille, Jonathan	1693	FRA	−21B	−60N	−62B	−59N	+72B	1.0	7.5	7.5	0.00	1426	-34.2
71	Subtil, Raphael	1674	FRA	−16B	−54N	−30B	−69N	−68B	0.0	9.0	10.0	0.00	913	-54.8
72	Frecon, Patrick	1618	FRA	−23B	−49N	−67B	−55B	−70N	0.0	8.0	9.0	0.00	925	-35.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Renous, PaulinFRA
+76.8
4.0 pts · #11
2Nguyen, EdouardFRA
+58.4
3.0 pts · #26
3Slawinski, RobinFRA
+55.2
4.0 pts · #10

Top rating losers

1Subtil, RaphaelFRA
-54.8
0.0 pts · #70
2Roger, NicolasFRA
-54.4
2.5 pts · #51
3Sagnard, EmilFRA
-42.4
2.5 pts · #27

Biggest upsets

R5+265 Elo gap
Nguyen, Edouard1618 beat Seite, Yamina1883
R1+236 Elo gap
Rosier, Yanael1686 beat Aubier, Lorys1922
R3+165 Elo gap
Alachtar, Socrate1730 beat Caillot, Charles1895