CChessStats

Open Chess ACC U1800 Mar 2026

Open SwissStandard

16 players participated in this 5-round tournament, held from 28 Feb 2026 to 30 Mar 2026 in Petroupoli, Greece. Top 10 Elo average was 1695, and top seed was Ilias I. Mastoras (πŸ‡¬πŸ‡· GRE, 1790).

Konstantinos Patsiotis (πŸ‡¬πŸ‡· GRE, 1701) won with 4.5/5, ahead of Konstantinos Kapagiannidis (4.5) and Panagiotis Latifis (3.5). Patsiotis shared the lead from round 4, winning on tie-break.

The biggest upset came in round 5: Panagiotis Latifis (1660) beat Nikolaos Alexandros Dallas (1779), a +119-point gap.

Location
πŸ‡¬πŸ‡·Petroupoli, Greece
Dates
28 Feb 2026 β†’ 30 Mar 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss Β· 5 rounds
Top seed
πŸ‡¬πŸ‡·Ilias I. Mastoras1790
Avg top 10
1,695
Participants
16
Federations Β· 1 represented
πŸ‡¬πŸ‡·GreeceΓ—15
Top 3

How it unfolded

Top 6 Β· 5 rounds

Tight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
6
1
1
2
2
1.52.545R1R2R3R4R5
Patsiotis4.5Kapagiannidis4.5Latifis3.5Mastoras3El Champasi3Kiloukiotis2.5
R5 Β· TIEBREAK CLUSTER

2 players finish on 4.5/5. Patsiotis takes the title on Buchholz Cut1 (13.0).

R2 Β· HEAD-TO-HEAD Β· WINNER VS 2ND

Konstantinos Patsiotis drew with Konstantinos Kapagiannidis (White).

WIN STREAKS Β· 2 top finishers

Konstantinos Patsiotis 3 wins (R3–R5)Konstantinos Kapagiannidis 3 wins (R3–R5)

Key matchups Β· top 4

Head-to-head between the four finishers
Player1234
1Konstantinos Patsiotis*
Β½
β€”
1
2Konstantinos Kapagiannidis
Β½
*
1
β€”
3Panagiotis Latifisβ€”
0
*
Β½
4Ilias I. Mastoras
0
β€”
Β½
*

Grille amΓ©ricaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΞ”
1Patsiotis, Konstantinos1701GRE+6N=2B+5N+4B+8N4.513.015.012.751992+67.6
2Kapagiannidis, Konstantinos1683GRE+12B=1N+7B+3N+4B4.513.014.011.751980+27.4
3Latifis, Panagiotis1660GRE+16N=5B+10Nβˆ’2B+9B3.511.011.05.001850+52.4
4El Champasi, Omar1723GRE+8B+7N+9Bβˆ’1Nβˆ’2N3.013.015.06.001695-2.8
5Mastoras, Ilias I.1790GRE+11B=3Nβˆ’1B=6N+7N3.012.514.06.501647-16.2
6Kiloukiotis, Dimitrios1482GREβˆ’1B+12NF=5B+10N2.511.012.04.001675+28.8
7Osmani, Sokol1521GRE+14Nβˆ’4Bβˆ’2N+11Nβˆ’5B2.012.012.52.001488-3.8
8Papasotiriou, Markella1485GREβˆ’4N+14BF+13Nβˆ’1B2.011.011.51.501499+3.2
9Dallas, Nikolaos Alexandros1779GREF+13Bβˆ’4N+10Bβˆ’3N2.09.09.02.501603-17.8
10Kilakos, Dimitrios1563GRE=15B+11Nβˆ’3Bβˆ’9Nβˆ’6B1.59.510.01.751495-9.4
11Mylonas, Athanasios1585GREβˆ’5Nβˆ’10B+14Nβˆ’7B=12N1.57.58.01.00823-48.0
12FIDE 5410274850β€”βˆ’2Nβˆ’6Bβˆ’13N=14B=11B1.09.510.01.0012200.0
13Cenaj, Oltian1471GREFβˆ’9N+12Bβˆ’8BF1.05.55.51.00824-25.6
14Chanialidis, Angelos0GREβˆ’7Bβˆ’8Nβˆ’11B=12NF0.56.57.50.507110.0
15Kazakos, Panteleimon1761GRE=10NFFFF0.51.51.50.751562-5.2
16Nikolaras, Konstantinos1705GREβˆ’3BFFFF0.04.04.00.00855-11.4

Key insights

Biggest movers and upsets β€” the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Open Chess ACC U1800 Mar 2026 β€” Petroupoli, Greece | Chess Tournament Results | ChessStats