36th open SO Peristeriou
21 players participated in this 7-round tournament, held from 20 Jan 2026 to 03 Mar 2026 in Peristeri, Greece. Top 10 Elo average was 1459, and top seed was Ioannis Dimogkotsis (🇬🇷 GRE, 1822).
Omar El Champasi (🇬🇷 GRE, 1723) won with 6.0/7, ahead of Orestis Bantounas Sarantopoulos (5.5) and Ioannis Ntaifas (5.5). El Champasi clinched sole first place in the final round.
The biggest upset came in round 2: Michail Vafeiadakis (1538) beat Ioannis Dimogkotsis (1822), a +284-point gap.
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How it unfolded
Top 6 · 7 roundsOmar El Champasi led from R3; +0.5-point edge over the runner-up.
Orestis Bantounas Sarantopoulos takes the sole lead (4.5/5).
Omar El Champasi beat Ioannis Ntaifas (White).
Omar El Champasi 4 wins (R1–R4)Ioannis Ntaifas 3 wins (R5–R7)Orestis Bantounas Sarantopoulos 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Omar El Champasi | * | 1 | 0 | 1 |
| 2Ioannis Ntaifas | 0 | * | ½ | — |
| 3Orestis Bantounas Sarantopoulos | 1 | ½ | * | 1 |
| 4Michail Vafeiadakis | 0 | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | El Champasi, Omar | 1723 | GRE | +18N | +12B | +4N | +3B | −2N | +5B | +8B | 6.0 | 25.5 | 26.5 | 21.00 | 1869 | +20.2 |
| 2 | Bantounas Sarantopoulos, Orestis | 1589 | GRE | +16N | +21B | =3N | +15B | +1B | +4N | F | 5.5 | 23.5 | 23.5 | 16.25 | 1967 | +68.8 |
| 3 | Ntaifas, Ioannis | 1754 | GRE | +17B | +10N | =2B | −1N | +15N | +9B | +12N | 5.5 | 21.0 | 22.5 | 13.75 | 1766 | +3.4 |
| 4 | Vafeiadakis, Michail | 1538 | GRE | +13B | +9N | −1B | +16N | =5N | −2B | +10N | 4.5 | 24.0 | 25.5 | 11.75 | 1608 | +8.0 |
| 5 | Mentzos, Apostolos | 1645 | GRE | −10B | +13N | +7B | +12N | =4B | −1N | +14N | 4.5 | 21.5 | 23.5 | 12.25 | 1580 | -10.0 |
| 6 | Marinopoulos, Nikolaos Sp | 0 | GRE | =15B | +?N | F | +20B | +9N | +10B | F | 4.5 | 17.0 | 17.0 | 7.75 | 1676 | 0.0 |
| 7 | FIDE 541022939 | 0 | — | −9B | +19N | −5N | +13B | −12B | +11N | +16B | 4.0 | 15.5 | 16.5 | 7.00 | 842 | 0.0 |
| 8 | Gkountouvas, Vasileios | 1574 | GRE | F | =11B | +18N | −9B | +17N | +15B | −1N | 3.5 | 15.5 | 15.5 | 5.25 | 1554 | -2.2 |
| 9 | Dimogkotsis, Ioannis | 1822 | GRE | +7N | −4B | F | +8N | −6B | −3N | +13B | 3.0 | 26.5 | 28.5 | 9.50 | 1503 | -49.2 |
| 10 | Kakaes, Georgios | 0 | GRE | +5N | −3B | F | +11N | +19B | −6N | −4B | 3.0 | 22.5 | 22.5 | 8.00 | 1527 | 0.0 |
| 11 | Stavrinos, Spyridon | 0 | GRE | +14B | =8N | F | −10B | +20N | −7B | F | 2.5 | 15.5 | 16.5 | 4.75 | 1574 | 0.0 |
| 12 | Eftaxiadis, Dimitrios | 1457 | GRE | +19B | −1N | F | −5B | +7N | F | −3B | 2.0 | 21.0 | 21.0 | 5.00 | 908 | -11.8 |
| 13 | FIDE 42184070 | 0 | — | −4N | −5B | +14B | −7N | F | +17B | −9N | 2.0 | 19.5 | 20.5 | 3.50 | 875 | 0.0 |
| 14 | Patsaris, Konstantinos | 0 | GRE | −11N | −18B | −13N | F | +16B | +19N | −5B | 2.0 | 12.5 | 12.5 | 2.50 | 846 | 0.0 |
| 15 | Polychronopoulos, Filippos | 1490 | GRE | =6N | +20B | F | −2N | −3B | −8N | F | 1.5 | 24.0 | 25.0 | 3.25 | 839 | -36.8 |
| 16 | FIDE 541017722 | 0 | — | −2B | =17N | F | −4B | −14N | +18B | −7N | 1.5 | 18.5 | 18.5 | 1.75 | 773 | 0.0 |
| 17 | FIDE 42187958 | 0 | — | −3N | =16B | −20N | +?B | −8B | −13N | F | 1.5 | 13.5 | 13.5 | 0.75 | 864 | 0.0 |
| 18 | FIDE 541017714 | 0 | — | −1B | +14N | −8B | −19N | F | −16N | −?B | 1.0 | 16.0 | 16.0 | 2.00 | 849 | 0.0 |
| 19 | FIDE 541020901 | 0 | — | −12N | −7B | F | +18B | −10N | −14B | F | 1.0 | 13.0 | 13.0 | 1.00 | 658 | 0.0 |
| 20 | Tzavaras, Giorgo | 0 | GRE | F | −15N | +17B | −6N | −11B | F | F | 1.0 | 11.0 | 11.0 | 1.50 | 690 | 0.0 |
| 21 | FIDE 358108428 | 0 | — | F | −2N | F | F | F | F | F | 0.0 | 7.5 | 7.5 | 0.00 | 789 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Bantounas Sarantopoulos, OrestisGRE+68.85.5 pts · #3
- 2El Champasi, OmarGRE+20.26.0 pts · #1
- 3Vafeiadakis, MichailGRE+8.04.5 pts · #4
- 1Dimogkotsis, IoannisGRE-49.23.0 pts · #9
- 2Polychronopoulos, FilipposGRE-36.81.5 pts · #18
- 3Eftaxiadis, DimitriosGRE-11.82.0 pts · #15
- R2+284 Elo gap
- R5+134 Elo gap