CChessStats

Tunisian Chess Championship Open Under 20 -2026

Open SwissStandard

16 players participated in this 9-round tournament, held from 20 Dec 2025 to 25 Dec 2025 in Gammarth, Tunis, Tunisia. 2 titled players. Top 10 Elo average was 1296, and top seed was Ahmed Zouaghi (🇹🇳 TUN, CM, 2005).

youssef Oueslati (🇹🇳 TUN, 0) won with 7.0/9, ahead of Sami Dahmani (7.0) and Youssef Jerraya (6.5). Oueslati won on tie-break after catching the field in the final round.

The biggest upset came in round 3: Youssef Jerraya (1544) beat Ahmed Zouaghi (CM, 2005), a +461-point gap.

Location
🇹🇳Gammarth, Tunis, Tunisia
Dates
20 Dec 2025 → 25 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
🇹🇳CMAhmed Zouaghi2005
Avg top 10
1,296
Participants
16
Titled players · 2
CM×2
Federations · 1 represented
🇹🇳Tunisia×14
Top 3

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 2 players tied at 7.0/9, decided on Buchholz.

Co-leaders
7
4
2
1
1
1
3
1
2
2.54.579R1R2R3R4R5R6R7R8R9
R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Oueslati takes the title on Buchholz Cut1 (41.5).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

youssef Oueslati lost to CM Sami Dahmani (Black).

WIN STREAKS · 3 top finishers

youssef Oueslati 5 wins (R5–R9)CM Sami Dahmani 3 wins (R1–R3)Youssef Jerraya 5 wins (R1–R5)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Oueslati, youssef0TUN+11N+6B2N7B+14N+9B+3N+4B+12N7.041.543.532.0016990.0
2Dahmani, SamiCM1789TUN+16B+15N+1B3N+12B=4B+6N=7N+8B7.039.540.028.001665-12.0
3Jerraya,Youssef1544TUN+8B+10N+4N+2B+7N=12B1B+11N5N6.542.546.032.252461+62.6
4Zouaghi,AhmedCM2005TUN+13B+12N3B+5N+8B=2N+10B1N+7B6.542.045.528.501791-19.2
5Laabidi,Rami0TUN10B+16N+13B4B9N+8N7B+14N+3B5.036.036.517.0015430.0
6El Ghozzi Ahmed1596TUN+14B1N12B8N+13B+15N2B+16N+11B5.033.534.012.001709+8.6
7Chaabane, Ayoub1515TUN9N+14B+15B+1N3B10N+5N=2B4N4.542.544.519.501379-26.4
8Mahmoud,Marouen0TUN3N+11B=14N+6B4N5B+16N+9B2N4.540.541.015.0016160.0
9Mechi, Kousay0TUN+7B13N+10B12N+5B1N+15B8N=16B4.534.034.515.7515290.0
10Ben amor, Anas1553TUN+5N3B9N+15B+11N+7B4N12BF4.038.040.015.501629+11.6
11Chalghoumi, Ahmed1504TUN1B8N+16B+13N10B+14N+12N3B6N4.036.036.59.501345-32.0
12Aouina,Adem0TUNF4B+6N+9B2N=3N11B+10N1B3.544.544.516.7516080.0
13Reguigui, Maher1458TUN4N+9B5N11B6N+16B=14B+15NF3.533.033.58.00853-33.2
14Khemis, Mohamed Amine0TUN6N7N=8B+16N1B11B=13N5B15B2.035.536.04.5011960.0
15FIDE 55705570F2B7N10N+16B6B9N13B+14N2.031.031.02.507820.0
16FIDE 554065802N5B11N14B15N13N8B6B=9N0.535.537.52.257870.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets