CChessStats

25th PAO open Nov 2025

Open SwissStandard

18 players participated in this 7-round tournament, held from 08 Nov 2025 to 19 Dec 2025 in Athens, Greece. Top 10 Elo average was 1738, and top seed was Konstantinos Ignatiadis (🇬🇷 GRE, 1975).

Artiom Antoniadis (🇬🇷 GRE, 1827) won with 6.0/7, ahead of Konstantinos Ignatiadis (5.5) and Dimitrios Vazelakis (4.5). Antoniadis shared the lead from round 5 and broke clear in the final round.

Location
🇬🇷Athens, Greece
Dates
08 Nov 2025 → 19 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇬🇷Konstantinos Ignatiadis1975
Avg top 10
1,738
Participants
18
Federations · 1 represented
🇬🇷Greece×18
Top 3

How it unfolded

Top 6 · 7 rounds

Artiom Antoniadis led from R7; +0.5-point edge over the runner-up.

Co-leaders
6
3
2
1
2
2
1
23.55.57R1R2R3R4R5R6R7Antoniadis takes lead
Antoniadis6Ignatiadis5.5Vazelakis4.5Papiotis4Stamatelos4Ntaifas3.5
R7 · LEADER CHANGE19 Dec

Artiom Antoniadis takes the sole lead (6.0/7).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Artiom Antoniadis lost to Konstantinos Ignatiadis (White).

WIN STREAKS · 2 top finishers

Artiom Antoniadis 3+3 wins (R1–R3, R5–R7)Konstantinos Ignatiadis 5 wins (R1–R6)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Artiom Antoniadis*
0
1
—
2Konstantinos Ignatiadis
1
*
1
1
3Dimitrios Vazelakis
0
0
*
½
4Kimon Papiotis—
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Antoniadis, Artiom1827GRE+13B+4N+9B−2B+3N+10B+6N6.021.522.517.001999+28.2
2Ignatiadis, Konstantinos1975GRE+7B+5N+3B+1NF+6B=4N5.526.028.522.502176+20.2
3Vazelakis, Dimitrios1914GRE+8N+6B−2N+11B−1B+9N=5N4.523.525.512.001811-12.8
4Stamatelos, Dimitrios1706GRE+12N−1B+13N=9BF+11N=2B4.022.523.58.251743+5.2
5Papiotis, Kimon1821GRE+10N−2B+7N=6B+11NF=3B4.020.020.010.501829+4.4
6Ntaifas, Ioannis1720GRE+14B−3N+8B=5N+15B−2N−1B3.523.524.56.501721+0.8
7Papadatos, Nikolaos P1665GRE−2N+10B−5B=12NF+16BF2.516.017.03.751667-0.2
8Vergoulis, Konstantinos Efraim1585GRE−3BF−6N+16B−10N+12B=9N2.514.515.53.501456-18.6
9Zafeiris, Konstantinos1520GREF+16B−1N=4NF−3B=8B2.020.520.54.251617+18.8
10Androulakis, Radamanthys Pavlos1502GRE−5B−7NFF+8B−1N+15B2.017.017.53.501606+31.6
11Kafousopoulos, Fotios1495GREF+17B+15N−3N−5B−4BF2.015.515.51.501535+1.0
12Bratsos, Konstantinos0GRE−4B−13N+14N=7BF−8NF1.513.013.52.2514370.0
13Koutsioumpos, Ioannis1540GRE−1N+12B−4BFF−15NF1.015.516.01.50874-40.4
14Stavropoulos, Simeon1446GRE−6NF−12B+17NFFF1.011.512.00.509190.0
15Xynidis, Maximos1491GREFF−11BF−6N+13B−10N1.09.09.01.001360-27.2
16Papageorgiadis, Georgios1413GREF−9N=18B−8N=17B−7NF1.08.08.00.5012780.0
17Athanasopoulos, Stavros P0GREF−11NF−14B=16NFF0.57.07.00.5011740.0
18Arnaoutis, Spyridon Agapitos1628GREFF=16NFFFF0.54.54.50.501414-10.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers