CChessStats

XIX Trophee International de Lyon 2025 open A (elo p1800)

Open SwissStandard

28 players participated in this 9-round tournament, held from 26 Dec 2025 to 30 Dec 2025 in Lyon, France. 5 titled players from 6 federations. Top 10 Elo average was 2172, and top seed was Phileas Mathieu (🇫🇷 FRA, IM, 2363).

Phileas Mathieu (🇫🇷 FRA, IM, 2363) won with 7.0/9, ahead of Ethan Saya (7.0) and Yohan Benitah (6.5). Mathieu shared the lead from round 7, winning on tie-break.

The biggest upset came in round 2: Noushith S A (1662) beat Elian Gibaud (2128), a +466-point gap.

Location
🇫🇷Lyon, France
Dates
26 Dec 2025 → 30 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇫🇷IMPhileas Mathieu2363
Avg top 10
2,172
Participants
28
Titled players · 5
IM×2
FM×2
CM×1
Federations · 6 represented
🇫🇷France×22
🇨🇭Switzerland×2
🇺🇦Ukraine×1
🇬🇧England×1
🇮🇳India×1
🇩🇿Algeria×1
Top 3

How it unfolded

Top 6 · 9 rounds

Tight race until R3; 2 players tied at 7.0/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
11
4
1
2
1
1
2
3
2
2.54.579R1R2R3R4R5R6R7R8R9Lissillour takes lead
R6 · LEADER CHANGE29 Dec

FM Baptiste Lissillour takes the sole lead (5.0/6).

R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Mathieu takes the title on Buchholz Cut1 (44.0).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

IM Phileas Mathieu beat FM Ethan Saya (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1IMPhileas Mathieu*
1
½
2FMEthan Saya
0
*
½
3IMYohan Benitah
½
½
*
½
4Raphael Lalitte
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Mathieu, PhileasIM2363FRA+17B+12N+19B=3N+2B4N+7B=6N+9B7.044.047.535.5023420.0
2Saya, EthanFM2275FRA+20B+25N=3B+7N1N+10B=8N+4B+12B7.043.045.532.752334+16.2
3Benitah, YohanIM2329FRA+15N+13B=2N=1B+14B=7N+4B=5N=6B6.546.050.535.252283-2.1
4Lissillour, BaptisteFM2237FRAF+16B+5N+10N+11B+1B3N2N+7B6.046.046.032.502322+19.8
5Lalitte, Raphael1973FRA=22B+9N4B+16N7B+19N+15B=3B+14N6.039.542.526.752113+66.0
6Gibaud, Elian2128FRA+11B19N7B+20N+9B=8B+14N=1B=3N5.541.545.027.252128+5.2
7Nortier, Julien2133FRA+18N=8B+6N2B+5N=3B1N+10B4N5.048.052.026.252196+14.2
8Grose, Kameron1986ENG+26B=7N=10B=19N+15B=6N=2B9N=11B5.040.543.022.502046+16.4
9Fayel, Nicolas2063FRA=16N5B=21N+18B6N+27B+13N+8B1N5.040.541.018.502053-3.0
10El Mchaouri Mas, YounesCM2115FRA+14N+21B=8N4B+19B2N=17B7N+18N5.039.042.520.002039-14.4
11Boullu, Thomas1927FRA6N+28N+12B+13B4N=14B18N+17B=8N5.039.039.018.752071+33.4
12Bernard, Clarence2007FRA+24N1B11N+25B13N+21B+16N+18B2N5.038.541.017.002034+8.4
13Tarnovetskyi, Roman2066UKR+27B3N+25B11N+12B15N9B+22N+17N5.035.536.015.002008-26.0
14Titov, Dmitrii1921SUI10B+17N+20B+23B3N=11N6B+15N5B4.540.043.017.502036+25.8
15Caer, Remy1948FRA3B=27N+22B+21N8N+13B5N14B+24B4.536.036.514.251947-1.8
16Chalancon, Antoine1915FRA=9B4N+27B5B=23N+26N12B=19N+21B4.534.535.012.251935+4.8
17Coudene, Martin1953FRA1N14B=24N+26N+20B+23B=10N11N13B4.035.538.012.751951-2.6
18Deboosere, Adam Moussa1940ALG7B26N+28B9N+22B+24N+11B12N10B4.033.033.010.501906-7.8
19Noushith S A1662INDF+6B1N=8B10N5B=21N=16B+25N3.539.039.014.501916+90.0
20Hogan, Nawzad1946FRA2N+24B14N6B17N=25B+27N=23B=26N3.531.532.07.001882-18.0
21Nguyen, Edouard1770FRA+28B10N=9B15B+27N12N=19B=24N16N3.530.530.56.001856+34.0
22Mouradian, Ichrhan1699FRA=5N23B15N=24B18NF+26B13B+27N3.028.028.07.251847+50.8
23Sellami, MHamed2011FRA25B+22N+26B14N=16B17N24B=20NF3.027.027.09.501774-50.8
24Chauvin, Denis1825SUI12B20N=17B=22NF18B+23N=21B15N2.530.530.58.251769-12.0
25Melkumyan, David1841FRA+23N2B13N12N26B=20NF+27B19B2.530.030.05.251813-15.6
26Gong, Alex1785FRA8N+18B23N17B+25N16B22NF=20B2.529.529.58.251774-6.8
27Cara, Jean-Marc1920FRA13N=15B16NF21B9N20B25N22B0.531.531.52.251462-145.2
28L'hermitte, Emmanuel1983FRA21N11B18NFFFFFF0.012.512.50.001079-38.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets