7th International Chess OPEN SKG - C
Open SwissStandard
27 players participated in this 7-round tournament, held from 08 Aug 2025 to 14 Aug 2025 in Thessaloniki, Greece. 6 federations represented. Top 10 Elo average was 1494, and top seed was Maria Trivella (🇬🇷 GRE, 1596).
Ioanna Kalyva (🇬🇷 GRE, 1440) won with 5.5/7, ahead of Athina Antonaki (5.0) and Konstantinos Koumpakis (4.5). Kalyva took the lead from round 6.
The biggest upset came in round 6: Ioanna Kalyva (1440) beat Maria Trivella (1596), a +156-point gap.
Location
🇬🇷Thessaloniki, Greece
Dates
08 Aug 2025 → 14 Aug 2025
Time control
Standard: 90 minutes for first 40 moves and 15 min. for the rest of the game with 30 sec. increment from move 1
System
Swiss · 7 rounds
Federations · 6 represented
🇬🇷Greece×16
🇩🇪Germany×2
🇲🇨Monaco×1
🇫🇷France×1
🇪🇪Estonia×1
🇲🇰North Macedonia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsIoanna Kalyva led from R6; +0.5-point edge over the runner-up.
Co-leaders
11
3
1
1
1
1
1
R6 · LEADER CHANGE13 Aug
Ioanna Kalyva takes the sole lead (5.0/6).
WIN STREAKS · 2 top finishers
Ioanna Kalyva 3 wins (R4–R6)Maria Trivella 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ioanna Kalyva | * | — | 1 | ½ |
| 2Athina Antonaki | — | * | — | — |
| 3Maria Trivella | 0 | — | * | — |
| 4Romain Challand | ½ | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kalyva, Ioanna | 1440 | GRE | +9B | =11N | =3B | +12N | +6B | +5B | =4N | 5.5 | 25.0 | 28.5 | 22.25 | 1726 | +60.0 |
| 2 | Antonaki, Athina | 1508 | GRE | +27B | +12N | −6B | =8N | =3B | +16N | +7B | 5.0 | 23.0 | 24.0 | 15.75 | 1494 | -8.4 |
| 3 | Koumpakis, Konstantinos | 1465 | GRE | +25N | =4B | =1N | =14B | =2N | +10B | =11N | 4.5 | 26.0 | 27.0 | 16.00 | 1503 | +6.4 |
| 4 | Challand, Romain | 0 | FRA | +?B | =3N | +7B | −11N | =8B | +6N | =1B | 4.5 | 25.5 | 25.5 | 15.00 | 1517 | 0.0 |
| 5 | Trivella, Maria | 1596 | GRE | +23B | +13N | +17B | =6N | +16B | −1N | F | 4.5 | 21.0 | 21.0 | 13.50 | 1635 | +5.4 |
| 6 | Tzekos, Georgios | 1551 | GRE | =22N | +19B | +2N | =5B | −1N | −4B | +20N | 4.0 | 25.5 | 28.0 | 14.50 | 1598 | +4.8 |
| 7 | Lytvynenko, Andrii | 0 | GER | +20N | =16B | −4N | +18B | +14N | =11B | −2N | 4.0 | 22.5 | 25.5 | 12.75 | 1492 | 0.0 |
| 8 | Lytvynenko, Sofi | 1411 | MNC | =19N | +22B | =16N | =2B | =4N | +20B | −9N | 4.0 | 22.5 | 25.0 | 13.25 | 1501 | 0.0 |
| 9 | Lazaridis, Lazaros Th | 0 | GRE | −1N | F | −12B | +?N | +13B | +17N | +8B | 4.0 | 22.5 | 22.5 | 10.50 | 1521 | 0.0 |
| 10 | Loginov, Mark | 0 | EST | −13B | +23N | +22B | +17N | −11B | −3N | +16B | 4.0 | 20.0 | 22.0 | 10.50 | 1413 | 0.0 |
| 11 | Classen, Meara | 1523 | GER | F | =1B | F | +4B | +10N | =7N | =3B | 3.5 | 25.5 | 25.5 | 15.50 | 1452 | -7.6 |
| 12 | Keisidou, Rodi | 0 | GRE | +21N | −2B | +9N | −1B | −17B | +26N | =13B | 3.5 | 24.0 | 25.0 | 9.75 | 1168 | 0.0 |
| 13 | Charalampous, Filippos | 1437 | GRE | +10N | −5B | −14N | +21B | −9N | +18B | =12N | 3.5 | 22.5 | 25.5 | 11.75 | 795 | -11.6 |
| 14 | Belovska, Sofija | 0 | MKD | −17B | +26N | +13B | =3N | −7B | +?N | F | 3.5 | 19.5 | 19.5 | 6.75 | 1507 | 0.0 |
| 15 | Bopotas, Andreas | 1401 | GRE | +26B | −17N | +25B | −16B | =19N | +22N | F | 3.5 | 16.0 | 17.0 | 6.00 | 702 | -29.2 |
| 16 | Stathakopoulou, Evangelia | 1468 | GRE | +24B | =7N | =8B | +15N | −5N | −2B | −10N | 3.0 | 25.0 | 27.0 | 9.50 | 1389 | -12.4 |
| 17 | Koukos, Charalampos | 1522 | GRE | +14N | +15B | −5N | −10B | +12N | −9B | F | 3.0 | 23.0 | 26.0 | 10.50 | 1498 | -4.0 |
| 18 | FIDE 2974398 | 0 | — | F | F | +24B | −7N | +25B | −13N | +22B | 3.0 | 19.5 | 20.5 | 5.50 | 637 | 0.0 |
| 19 | Sovatzik, Dimitrios | 0 | GRE | =8B | −6N | −?B | +25N | =15B | +27N | F | 3.0 | 16.5 | 16.5 | 5.75 | 1214 | 0.0 |
| 20 | Chiras, Christos | 1430 | GRE | −7B | +24N | +27B | F | +26N | −8N | −6B | 3.0 | 16.0 | 16.0 | 4.00 | 751 | -6.8 |
| 21 | Zafeiroulis, Apostolos | 0 | GRE | −12B | −27N | +23B | −13N | −?B | +25N | +26B | 3.0 | 12.0 | 12.0 | 4.00 | 674 | 0.0 |
| 22 | Kiritopoulos, Leonidas | 0 | GRE | =6B | −8N | −10N | +23B | +24N | −15B | −18N | 2.5 | 20.5 | 22.5 | 6.00 | 1283 | 0.0 |
| 23 | FIDE 42198020 | 0 | — | −5N | −10B | −21N | −22N | +27B | −24B | +25N | 2.0 | 17.0 | 18.0 | 2.00 | 795 | 0.0 |
| 24 | Doumanoglou, Anna | 0 | GRE | −16N | −20B | −18N | F | −22B | +23N | +?B | 2.0 | 13.5 | 13.5 | 2.00 | 1344 | 0.0 |
| 25 | FIDE 533050546 | 0 | — | −3B | +?N | −15N | −19B | −18N | −21B | −23B | 1.0 | 19.0 | 19.0 | 0.00 | 1333 | 0.0 |
| 26 | FIDE 541010213 | 0 | — | −15N | −14B | F | +27N | −20B | −12B | −21N | 1.0 | 17.5 | 17.5 | 1.00 | 616 | 0.0 |
| 27 | FIDE 42181020 | 0 | — | −2N | +21B | −20N | −26B | −23N | −19B | F | 1.0 | 17.0 | 17.0 | 3.00 | 689 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kalyva, IoannaGRE+60.05.5 pts · #3
- 2Koumpakis, KonstantinosGRE+6.44.5 pts · #10
- 3Trivella, MariaGRE+5.44.5 pts · #1
Top rating losers
- 1Bopotas, AndreasGRE-29.23.5 pts · #20
- 2Stathakopoulou, EvangeliaGRE-12.43.0 pts · #15
- 3Charalampous, FilipposGRE-11.63.5 pts · #25
Biggest upsets
- R6+156 Elo gap
- R5+111 Elo gap