27th Open Irakleiou Attikis - Athens Challenge 2025 B

Open SwissStandard

81 players participated in this 8-round tournament, held from 14 Jun 2025 to 22 Jun 2025 in Heraklion Attikis, Greece. 2 federations represented. Top 10 Elo average was 1681, and top seed was Alexandros Chatzinikolaou (🇬🇷 GRE, 1741).

Aristofanis Diakoumeas (🇬🇷 GRE, 1669) won with 6.5/8, ahead of Malkhaz Eradze (6.0) and Ioannis Chrysostomos Karvountzis (6.0). Diakoumeas won solo starting round 7.

The biggest upset came in round 6: Konstantinos Tsigkounis (1429) beat Georgios Th Vasilopoulos (1681), a +252-point gap.

Location

🇬🇷Heraklion Attikis, Greece

Dates

14 Jun 2025 → 22 Jun 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 8 rounds

Top seed

🇬🇷Alexandros Chatzinikolaou1741

Avg top 10

1,681

Participants

Federations · 2 represented

🇬🇷Greece×70

🇬🇪Georgia×1

Top 3

🥇
Aristofanis Diakoumeas
🇬🇷GRE·1669
6.5pts·1839perf+30.8
🥈
Malkhaz Eradze
🇬🇪GEO·1705
6.0pts·1772perf+28.8
🥉
Ioannis Chrysostomos Karvountzis
🇬🇷GRE·1648
6.0pts·1932perf+82.0

How it unfolded

Top 6 · 8 rounds

Aristofanis Diakoumeas led from R7; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R7.

Co-leaders

Diakoumeas6.5Eradze6Perrakis6Chatzinikolaou6Ioannidis6Karvountzis6

R7–R8 · LEAD HELD

Aristofanis Diakoumeas held the sole lead from R7 through R8 without losing it.

WIN STREAKS · 3 top finishers

Aristofanis Diakoumeas 3 wins (R1–R3)Malkhaz Eradze 3+3 wins (R1–R3, R6–R8)Polychronis Perrakis 3 wins (R5–R7)

R5 · LATE SURGE

Malkhaz Eradze was #12 at R5, climbed to #2 over the final stretch.

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Aristofanis Diakoumeas	*	—	½	—
2Malkhaz Eradze	—	*	—	—
3Polychronis Perrakis	½	—	*	—
4Alexandros Chatzinikolaou	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	Pts	Bu C1	Bu	SB	Perf	Δ
1	Diakoumeas, Aristofanis	1669	GRE	+51N	+15B	+24N	=6B	=16B	+37N	+5B	=19N	6.5	34.0	37.5	30.00	1839	+30.8
2	Eradze, Malkhaz	1705	GEO	+25B	+42N	+5B	−16N	−3B	+55N	+10B	+7N	6.0	34.5	37.5	27.00	1772	+28.8
3	Karvountzis, Ioannis Chrysostomos	1648	GRE	F	+68B	+19N	+13B	+2N	=16N	+4B	=6B	6.0	34.0	34.0	28.75	1932	+82.0
4	Chatzinikolaou, Alexandros	1741	GRE	+14B	=43N	+8N	+35B	=10N	+36B	−3N	+27B	6.0	33.5	37.0	26.75	1767	+6.0
5	Ioannidis, Ilias	1645	GRE	+60N	+30B	−2N	+66B	+8N	+10B	−1N	+29B	6.0	33.5	35.5	23.00	1721	+15.2
6	Perrakis, Polychronis	1734	GRE	+53N	F	+39B	=1N	+24B	+20N	+16B	=3N	6.0	32.5	32.5	26.25	1916	+27.0
7	Alexandropoulos, Konstantinos	1680	GRE	+40B	+23N	=10B	+17N	F	+41B	+25N	−2B	5.5	31.5	31.5	23.00	1678	+3.2
8	Mouridis, Konstantinos	1563	GRE	+61B	+70N	−4B	+47N	−5B	+45N	+18B	=16N	5.5	30.5	32.5	18.25	1622	+8.0
9	Zachos, Antonios	0	GRE	−18B	+78N	−12B	+67N	+42B	=22N	+48B	+25N	5.5	27.0	28.0	16.25	1558	0.0
10	Moraitis, Vasileios	1620	GRE	+52B	+65N	=7N	+21B	=4B	−5N	−2N	+32B	5.0	35.0	37.0	19.25	1637	+6.0
11	Kalopisis, Orestis Mario	0	GRE	+12B	−?B	+32N	+42N	−26B	+14N	+20B	−13N	5.0	31.0	31.0	22.00	1590	0.0
12	Agiakatsikas, Konstantinos	1547	GRE	−11N	+67B	+9N	−28B	+44N	−27B	+40N	+33B	5.0	30.0	32.0	19.00	1620	+14.0
13	Magoulas, Dionysios	1572	GRE	+81N	F	+26B	−3N	+17B	+24N	−19B	+11B	5.0	28.0	28.0	17.50	1626	+6.0
14	Travlos, Markos	1443	GRE	−4N	+63B	+72N	−24B	+80N	−11B	+28N	+31B	5.0	27.0	27.0	12.00	1523	+10.8
15	Tziros, Charalampos	1465	GRE	+79B	−1N	=41B	+69N	−19B	=64N	+52B	+26N	5.0	26.0	26.5	12.50	1492	+2.4
16	Tagklis, Ioannis	1656	GRE	+44B	+22N	F	+2B	=1N	=3B	−6N	=8B	4.5	38.0	38.0	23.00	1709	+11.4
17	Gkountis, Paraschos	0	GRE	+50N	=31B	+18N	−7B	−13N	−21B	+53N	+43B	4.5	30.5	33.5	16.50	1601	0.0
18	Sereti, Ioanna	1639	GRE	+9N	F	−17B	+29N	=55B	+28B	−8N	+30B	4.5	30.5	30.5	19.00	1572	-14.4
19	Karanasos, Vasileios	1549	GRE	F	+62N	−3B	+71B	+15N	F	+13N	=1B	4.5	30.5	30.5	17.25	1689	+29.6
20	Azadelis, Kyriakos	1635	GRE	=41B	=45N	+44B	+27N	+43N	−6B	−11N	=38B	4.5	29.5	33.0	16.50	1627	-1.0
21	Karbone, Aris	1643	GRE	+46B	=27N	=43B	−10N	=64B	+17N	−22B	+42N	4.5	28.5	31.0	16.50	1460	-60.0
22	Stylianidis, Filippos	1511	GRE	+54N	−16B	+75N	−36B	+60N	=9B	+21N	F	4.5	27.5	28.5	13.75	1521	+2.0
23	Xynidis, Maximos	1512	GRE	+56N	−7B	−29N	=61B	−71N	+75B	+57N	+44B	4.5	23.0	24.0	11.75	1392	-19.2
24	Sideropoulos, Georgios N	1610	GRE	+33B	+28N	−1B	+14N	−6N	−13B	−45B	+65N	4.0	34.0	36.0	15.00	1421	-62.4
25	Tsigkounis, Konstantinos	1429	GRE	−2N	F	+62B	+39N	+34B	+26N	−7B	−9B	4.0	31.5	31.5	14.50	1711	+77.2
26	Vasilopoulos, Georgios Th	1681	GRE	+32N	=73B	−13N	+49B	+11N	−25B	=30N	−15B	4.0	30.5	32.0	15.25	1419	-94.8
27	Sereti, Eleni	1443	GRE	+74N	=21B	=31N	−20B	F	+12N	+37B	−4N	4.0	30.0	31.0	14.25	1630	+45.2
28	Eleftheriou, Iasonas	0	GRE	+34B	−24B	+53N	+12N	−37B	−18N	−14B	+52N	4.0	29.5	32.5	15.00	1503	0.0
29	Rizopoulos, Odysseas Ioannis	0	GRE	−65N	+34N	+23B	−18B	+66N	+43B	F	−5N	4.0	28.5	30.5	14.00	1684	+69.6
30	Panaidis, Fragkiskos	1448	GRE	+80B	−5N	+65B	−37N	=47B	+46N	=26B	−18N	4.0	27.5	27.5	9.25	1325	-9.4
31	Tsirikos, Alexios Christos	1584	GRE	+57B	=17N	=27B	=55N	F	+71B	=38N	−14N	4.0	27.0	28.5	12.25	1357	-50.0
32	Tampakaki, Despoina	1417	GRE	−26B	+59N	−11B	+33N	F	+80B	+34N	−10N	4.0	25.0	25.0	11.00	1570	+16.2
33	Kastani, Christina	0	GRE	−24N	+50B	−66N	−32B	+79N	+53B	+58B	−12N	4.0	24.5	25.0	10.00	1457	+15.6
34	Samaras, Aristeidis	1565	GRE	−28N	−29B	+63N	+75B	−25N	+65B	−32B	+46N	4.0	24.0	25.0	9.00	629	-82.0
35	Chouliaras, Evangelos	1646	GRE	F	+38B	+49N	−4N	+58B	F	F	+55N	4.0	24.0	24.0	13.50	1756	+26.4
36	Georgiadis, Panagiotis	1639	GRE	F	+52N	+64B	+22N	+45B	−4N	F	F	4.0	23.5	23.5	13.50	1715	+8.2
37	Tsagkas, Odysseas	1623	GRE	F	F	+73N	+30B	+28N	−1B	−27N	+45B	4.0	23.5	23.5	13.00	1583	-9.6
38	Patsiotis, Konstantinos	1445	GRE	F	−35N	−47B	+62N	+69B	+58N	=31B	=20N	4.0	23.5	23.5	11.75	1600	+38.0
39	Di Giorgio, Victor	1559	GRE	F	+69B	−6N	−25B	+61N	+57B	−41N	+64N	4.0	23.5	23.5	10.00	1391	-28.0
40	Zavrakidis, Charalampos	1414	GRE	−7N	+56B	F	+72B	F	+67N	−12B	+54N	4.0	20.0	20.0	9.50	814	-9.6
41	Karatzanos, Konstantinos	0	GRE	=20N	=48B	=15N	+73B	F	−7N	+39B	F	3.5	31.0	32.5	12.00	1594	0.0
42	Lourdis, Vasileios	1539	GRE	+63N	−2B	+60N	−11B	−9N	+54B	=44N	−21B	3.5	30.0	32.5	9.75	1311	-32.8
43	Chatzinikolaou, Nina Loukia	1541	GRE	+47B	=4B	=21N	+80N	−20B	−29N	=64B	−17N	3.5	29.5	29.5	10.00	1430	-29.6
44	Tzannis, Panayotis	1405	GRE	−16N	+54B	−20N	+68B	−12B	+59N	=42B	−23N	3.5	28.0	30.0	9.75	1212	-17.8
45	Kouvaros, Vasileios Zeiron	1427	GRE	F	=20B	+68N	+48B	−36N	−8B	+24N	−37N	3.5	27.5	27.5	11.75	1554	+36.4
46	Barmparosos, Stamatios	0	GRE	−21N	+74B	−48N	+70B	=49N	−30B	+71N	−34B	3.5	23.0	24.0	6.25	1174	0.0
47	Kazamias, Aias Stavros	0	GRE	−43N	+51B	+38N	−8B	=30N	+66B	F	F	3.5	22.5	22.5	11.50	1492	0.0
48	Belioti, Dafni	1579	GRE	F	=41N	+46B	−45N	F	+60B	−9N	+56B	3.5	21.5	21.5	10.75	631	-28.0
49	Di Giorgio, Nikolaos	1465	GRE	F	+76N	−35B	−26N	=46B	−52N	+67B	+66B	3.5	19.5	19.5	6.75	1470	+0.4
50	Theodoratou, Foteini	1552	GRE	−17B	−33N	F	+74B	−57N	+68B	=63N	+71B	3.5	18.5	18.5	5.75	612	-27.6
51	Koliokitsou, Panagiota	1408	GRE	−1B	−47N	=78B	+76N	F	−56N	+79B	+62N	3.5	18.0	18.0	4.50	881	-6.8
52	Poursalidis, Kyriakos	0	GRE	−10N	−36B	+56N	−53B	+77N	+49B	−15N	−28B	3.0	27.5	28.5	7.50	1286	0.0
53	Kastanas, Evangelos	1433	GRE	−6B	+61N	−28B	+52N	F	−33N	−17B	+80N	3.0	24.0	24.0	5.50	773	-27.2
54	FIDE 42163064	0	—	−22B	−44N	F	+63B	+72N	−42N	+69B	−40B	3.0	22.5	24.0	6.00	664	0.0
55	Papanastasiou, Georgios Panagiotis	1430	GRE	F	F	+77N	=31B	=18N	−2B	+56N	−35B	3.0	22.5	22.5	8.25	1451	+3.6
56	Syngounis, Filippos	0	GRE	−23B	−40N	−52B	+?N	+75N	+51B	−55B	−48N	3.0	22.5	22.5	4.50	1227	0.0
57	Alexandris, Dimosthenis	0	GRE	−31N	F	+76B	−58N	+50B	−39N	−23B	+67N	3.0	22.0	22.0	6.50	1308	0.0
58	Giannikas, Anastasios Marios	1531	GRE	=62B	F	=71N	+57B	−35N	−38B	−33N	+63B	3.0	21.5	21.5	7.50	691	-66.4
59	Georgiadis, Kimon	0	GRE	−68N	−32B	+74N	−60B	+70N	−44B	−66N	+77B	3.0	17.0	18.0	4.00	624	0.0
60	Tchepkhodze, Giorgi	0	GRE	−5B	+79N	−42B	+59N	−22B	−48N	=62B	−61N	2.5	25.5	26.0	4.75	769	0.0
61	Floropoulos, Georgios	0	GRE	−8N	−53B	F	=23N	−39B	+69N	F	+60B	2.5	24.5	24.5	6.75	1196	0.0
62	Poursalidis, Stefanos Konstantinos	0	GRE	=58N	−19B	−25N	−38B	=78N	+72B	=60N	−51B	2.5	23.0	24.0	4.75	1097	0.0
63	FIDE 42166101	0	—	−42B	−14N	−34B	−54N	+76B	+74N	=50B	−58N	2.5	23.0	24.0	3.75	1160	0.0
64	Vikis, Nikiforos	1405	GRE	F	F	−36N	+77B	=21N	=15B	=43N	−39B	2.5	22.0	22.0	7.50	1423	+2.8
65	Kastanis, Konstantinos	0	GRE	+29B	−10B	−30N	F	F	−34N	+80B	−24B	2.0	25.0	25.0	4.00	1303	0.0
66	Stavropoulos, Simeon	1459	GRE	F	F	+33B	−5N	−29B	−47N	+59B	−49N	2.0	24.0	24.0	7.00	1304	-16.0
67	FIDE 42195365	0	—	−?N	−12N	+79B	−9B	+68N	−40B	−49N	−57B	2.0	23.5	23.5	2.50	695	0.0
68	FIDE 541010469	0	—	+59B	−3N	−45B	−44N	−67B	−50N	−76B	+74N	2.0	22.5	23.5	4.00	711	0.0
69	Ioannidis, Aris	0	GRE	F	−39N	+81B	−15B	−38N	−61B	−54N	+79B	2.0	19.0	19.0	0.50	684	0.0
70	FIDE 541003608	0	—	F	−8B	F	−46N	−59B	+76N	F	+75B	2.0	14.0	14.0	2.00	763	0.0
71	Androulakis, Radamanthys Pavlos	0	GRE	F	F	=58B	−19N	+23B	−31N	−46B	−50N	1.5	23.0	23.0	6.00	1396	0.0
72	Kalamara, Aikaterini	0	GRE	F	F	−14B	−40N	−54B	−62N	=77N	+76B	1.5	16.5	16.5	1.50	624	0.0
73	Zouloumis, Georgios	1511	GRE	+78B	=26N	−37B	−41N	F	F	F	F	1.5	12.5	12.5	3.00	1460	-5.2
74	FIDE 541013360	0	—	−27B	−46N	−59B	−50N	+?B	−63B	−75N	−68B	1.0	19.5	19.5	0.00	720	0.0
75	Kalamara, Eleni	0	GRE	F	F	−22B	−34N	−56B	−23N	+74B	−70N	1.0	19.0	19.0	1.00	728	0.0
76	FIDE 541013344	0	—	F	−49B	−57N	−51B	−63N	−70B	+68N	−72N	1.0	18.0	18.0	2.00	638	0.0
77	Kalamaras, Dimitris	0	GRE	F	F	−55B	−64N	−52B	=79N	=72B	−59N	1.0	13.5	13.5	1.00	618	0.0
78	Tsekes, Sotirios	0	GRE	−73N	−9B	=51N	F	=62B	F	F	F	1.0	13.0	13.0	3.00	1268	0.0
79	FIDE 42176484	0	—	−15N	−60B	−67N	F	−33B	=77B	−51N	−69N	0.5	20.0	20.0	0.50	631	0.0
80	FIDE 541013352	0	—	−30N	F	F	−43B	−14B	−32N	−65N	−53B	0.0	25.5	25.5	0.00	655	0.0
81	FIDE 541003934	0	—	−13B	F	−69N	F	F	F	F	F	0.0	9.0	9.0	0.00	772	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Karvountzis, Ioannis ChrysostomosGRE
+82.0
6.0 pts · #7
2Tsigkounis, KonstantinosGRE
+77.2
4.0 pts · #17
3Rizopoulos, Odysseas IoannisGRE
+69.6
4.0 pts · #11

Top rating losers

1Vasilopoulos, Georgios ThGRE
-94.8
4.0 pts · #24
2Samaras, AristeidisGRE
-82.0
4.0 pts · #63
3Giannikas, Anastasios MariosGRE
-66.4
3.0 pts · #77

Biggest upsets

R6+252 Elo gap
Tsigkounis, Konstantinos1429 beat Vasilopoulos, Georgios Th1681
R8+216 Elo gap
Tziros, Charalampos1465 beat Vasilopoulos, Georgios Th1681
R7+183 Elo gap
Kouvaros, Vasileios Zeiron1427 beat Sideropoulos, Georgios N1610