Sebastien Cossin

FRA · 40 yrs · K=10 · Peak 2516 (Jul 2013)

Best performance: 2592 at Tournoi de GMI de Condom 2011(Best of 2011)

OCT26 Rating

2502

Live Rating

2502.0

Change

0.0

Games Played

How live ratings are calculated

Rating History · Classical

Loading chart…

Official classical rating by month

List	Rating	Change
Oct 2026	2502	0
Sep 2026	2502	0
Aug 2026	2502	0
Jul 2026	2502	0
Jun 2026	2502	0
May 2026	2502	0
Apr 2026	2502	0
Mar 2026	2502	0
Feb 2026	2502	0
Jan 2026	2502	0
Dec 2025	2502	0
Nov 2025	2502	0

Next title: GMrating metno norms on record yetdetails ↓

Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

	Last played	Score	TPR
	Team 2025 - 60mn juilletJun 28, 2025 – Jun 29, 2025	1/2	—

The live rating moves only when new rated games are played. Until then it matches the published rating.

Title Progress

GM title progress

Next title: Grandmaster

Rating requirement met (peak 2516, JUL13 list)

Norms: none on record with us yet

Based on events we cover plus the FIDE norm registers of all federations. Norms filed elsewhere may not show up here yet.

Event timeline · Classical

34 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Team 2025 - 60mn juillet—(0)
Jun 2025Teamfederation source
Score 1/2Start 2502
Team 2025 - Nationale 1 r8-9—(1)
Mar 2025Teamfederation source
Score 1/1Opp avg 2247Start 2500
Team 2025 - Nationale 1 r6-7—(2)
Feb 2025Teamfederation source
Score 2/2Opp avg 2259Start 2496
Team 2025 - Nationale 1 r5—(1)
Jan 2025Teamfederation source
Score 1/1Opp avg 2286Start 2494
Team 2025 - Nationale 1 r3-4—(2)
Dec 2024Teamfederation source
Score 2/2Opp avg 2300Start 2489
Team 2024 - Nationale 1 r8-9—(2)
Mar 2024Teamfederation source
Score 1/2Opp avg 2178Start 2496
Team 2024 - Nationale 1 r7—(1)
Jan 2024Teamfederation source
Score ½/1Opp avg 2398Start 2497
Team 2024 - Nationale 1 r5-6—(2)
Dec 2023Teamfederation source
Score 1½/2Opp avg 2349Start 2496
Team 2024 - Nationale 3 r2-4—(1)
Nov 2023Teamfederation source
Score 1/1Opp avg 1958Start 2495
Team 2022 - Nationale 1 r5—(1)
Jan 2022Teamfederation source
Score 0/1Opp avg 2447Start 2501
Team 2019 - Top 122549
May 2019Teamfederation source
Best of 2019Score 4½/9Opp avg 2549Start 2494
Team 2018 - Top 122465
May – Jun 2018Teamfederation source
Best of 2018Score 4½/11Opp avg 2530Start 2498
42eme open international d'echecs de Fourmies - Open A2451
May 2018Swissfederation source
#2 in 2018Score 5½/7Opp avg 2221Start 2498
Karpos Open 20172427
Apr 2017Swissfederation source
Best of 2017Score 6½/9Opp avg 2261Start 2499
Team 2017 - Nationale 1 r8-9—(2)
Mar 2017Teamfederation source
Score 1/2Opp avg 2454Start 2500
Team 2017 - Nationale 1 r7—(1)
Jan 2017Teamfederation source
Score 0/1Opp avg 2559Start 2504
Team 2017 - Nationale 1 r5-6—(2)
Dec 2016Teamfederation source
Score 2/2Opp avg 2353Start 2498
Team 2017 - Nationale 1 r1-2—(2)
Oct 2016Teamfederation source
Score 1½/2Opp avg 2347Start 2497
Team 2016 - Coupe de France Demi et Finale—(2)
Jun 2016Teamfederation source
Score 2/2Opp avg 2276Start 2512
Team 2016 - Top 122375
May – Jun 2016Teamfederation source
Best of 2016Score 3/11Opp avg 2550Start 2514
Team 2016 - Coupe de France 8e et quart—(1)
May 2016Teamfederation source
Score ½/1Opp avg 2394Start 2514
32e open international de Cappelle-la-Grande—(0)
Feb 2016Swissfederation source
Score 0/1Start 2514
Team 2015 - Top 122522
May 2015Teamfederation source
Best of 2015Score 4/8Opp avg 2522Start 2516
39ème open international d'échecs de Fourmies2465
May 2015Swissfederation source
#2 in 2015Score 5/7Opp avg 2340Start 2516
Team 2013 - Top 122572
May 2013Teamfederation source
Best of 2013Score 5/8Opp avg 2477Start 2509

Live ratings projected from the OCT26 published list · Not affiliated with FIDE