Campeonato Segunda de Euskadi - Zonal de Bizkaia 2025 Rondas 4-6
Open SwissStandard
59 players participated in this 6-round tournament, held from 08 Nov 2025 to 22 Nov 2025 in Bilbao, Spain. Top 10 Elo average was 1835, and top seed was Eder Bombin Martinez (🇪🇸 ESP, 2004).
Miguel Centeno Polo (🇪🇸 ESP, 1759) won with 3.0/6, ahead of Juan Carlos Blanco Perez (3.0) and Aitor Bravo Freire (3.0). Centeno Polo shared the lead from round 5, winning on tie-break.
The biggest upset came in round 4: Andrei Zarate Ivchenko (1663) beat Asier Ugarte Askasibar (1891), a +228-point gap.
Location
🇪🇸Bilbao, Spain
Dates
08 Nov 2025 → 22 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Federations · 1 represented
🇪🇸Spain×59
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTight race until R6; 3 players tied at 3.0/6, decided on Buchholz. Title race narrowed from 23 co-leaders at R4 to 3 at the finish.
Co-leaders
60
60
60
23
7
3
R6 · TIEBREAK CLUSTER
3 players finish on 3.0/6. Centeno Polo takes the title on Buchholz Cut1 (4.5).
WIN STREAKS · 3 top finishers
Juan Carlos Blanco Perez 3 wins (R4–R6)Miguel Centeno Polo 3 wins (R4–R6)Aitor Bravo Freire 3 wins (R4–R6)
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Centeno Polo, Miguel | 1759 | ESP | F | F | F | +32B | +18N | +23B | 3.0 | 4.5 | 4.5 | 4.50 | 2457 | +21.2 |
| 2 | Blanco Perez, Juan Carlos | 1819 | ESP | F | F | F | +14N | +51B | +46N | 3.0 | 2.5 | 2.5 | 2.50 | 2388 | +17.8 |
| 3 | Bravo Freire, Aitor | 1868 | ESP | F | F | F | +26B | +52N | +39N | 3.0 | 2.5 | 2.5 | 2.50 | 2569 | +41.2 |
| 4 | Zarate Ivchenko, Andrei | 1663 | ESP | F | F | F | +10B | +33N | =5B | 2.5 | 5.5 | 5.5 | 4.25 | 2073 | +56.8 |
| 5 | Ibanez Baz, Miguel Angel | 1747 | ESP | F | F | F | +46B | +22B | =4N | 2.5 | 4.5 | 4.5 | 3.25 | 2008 | +31.2 |
| 6 | Koratty Saji, Julen | 1616 | ESP | F | F | F | +47N | +29B | =21B | 2.5 | 3.5 | 3.5 | 2.75 | 1878 | +41.2 |
| 7 | Garcia Laza, Javier | 1749 | ESP | F | F | F | +50B | =23N | +31B | 2.5 | 2.5 | 2.5 | 1.75 | 1958 | +14.6 |
| 8 | Fernandez de Arcaya M, Diego | 1675 | ESP | F | F | F | =21B | +47N | +52B | 2.5 | 2.0 | 2.0 | 1.25 | 1924 | +38.4 |
| 9 | Bengoa Barrena, Josu | 1520 | ESP | F | F | F | +57B | =25N | +55B | 2.5 | 1.5 | 1.5 | 0.75 | 1856 | +26.0 |
| 10 | Ugarte Askasibar, Asier | 1891 | ESP | F | F | F | −4N | +20B | +32B | 2.0 | 5.5 | 5.5 | 3.00 | 1782 | -14.8 |
| 11 | Iturgaiz Lopez, Unai | 1622 | ESP | F | F | F | +17N | +38B | −12N | 2.0 | 5.0 | 5.0 | 3.00 | 1845 | +33.6 |
| 12 | Rivera Lopez, Pablo | 1715 | ESP | F | F | F | =13B | =46N | +11B | 2.0 | 4.5 | 4.5 | 3.25 | 1855 | +18.8 |
| 13 | Etxeberria Seijas, Ugaitz | 1859 | ESP | F | F | F | =12N | +35B | =22N | 2.0 | 4.5 | 4.5 | 2.75 | 1854 | +0.4 |
| 14 | Martinez Diez, Jose Felix | 1516 | ESP | F | F | F | −2B | +53N | +25B | 2.0 | 4.5 | 4.5 | 1.50 | 1757 | +18.2 |
| 15 | Bombin Martinez, Eder | 2004 | ESP | F | F | F | F | +16N | +37B | 2.0 | 4.0 | 4.0 | 3.00 | 2408 | +6.4 |
| 16 | Goti Cordon, Luis Pedro | 1498 | ESP | F | F | F | +44N | −15B | +34N | 2.0 | 4.0 | 4.0 | 2.00 | 1836 | +26.0 |
| 17 | Momoitio Garcia, Angel | 1719 | ESP | F | F | F | −11B | +48B | +40N | 2.0 | 3.5 | 3.5 | 1.50 | 1718 | +0.6 |
| 18 | Caycedo Pelaez, Oriana | 1625 | ESP | F | F | F | +48N | −1B | +51N | 2.0 | 3.5 | 3.5 | 0.50 | 1758 | +21.2 |
| 19 | Ortiz Gay, Inigo | 1625 | ESP | F | F | F | F | +50N | +24B | 2.0 | 2.5 | 2.5 | 1.50 | 2522 | +25.0 |
| 20 | Juarez Castro, Aitor | 1604 | ESP | F | F | F | +54N | −10N | +50B | 2.0 | 2.0 | 2.0 | 0.00 | 1896 | +42.0 |
| 21 | De la Cruz Esteibarlanda, Ametz | 1653 | ESP | F | F | F | =8N | =26B | =6N | 1.5 | 6.5 | 6.5 | 3.25 | 1669 | -2.4 |
| 22 | De la Sierra Mendibil, Aitor | 1773 | ESP | F | F | F | +33B | −5N | =13B | 1.5 | 5.5 | 5.5 | 2.00 | 1790 | -4.4 |
| 23 | De Vicente Luja, Aratz | 1703 | ESP | F | F | F | +51N | =7B | −1N | 1.5 | 5.5 | 5.5 | 1.25 | 1687 | -2.0 |
| 24 | Villanueva Bustos, Leonardo Andres | 1715 | ESP | F | F | F | =28N | +42B | −19N | 1.5 | 4.5 | 4.5 | 1.75 | 1639 | -5.8 |
| 25 | Soto Rodriguez, Jesus | 1613 | ESP | F | F | F | +53B | =9B | −14N | 1.5 | 4.5 | 4.5 | 1.25 | 1529 | -5.8 |
| 26 | Beldarrain Ruiz de Azua, Aitor | 1737 | ESP | F | F | F | −3N | =21N | +56B | 1.5 | 4.5 | 4.5 | 0.75 | 1716 | -5.6 |
| 27 | Asensio Arino, Juan Angel | 1511 | ESP | F | F | F | +45B | −36N | =30B | 1.5 | 3.5 | 3.5 | 1.75 | 1704 | +15.6 |
| 28 | Zorrilla Sainz, Isaac | 1668 | ESP | F | F | F | =24B | −31N | +41B | 1.5 | 3.5 | 3.5 | 1.75 | 1628 | -4.4 |
| 29 | Gonzalez Perez, Alberto | 1631 | ESP | F | F | F | +56B | −6N | =47B | 1.5 | 3.0 | 3.0 | 0.25 | 1567 | -6.0 |
| 30 | Fernandez Bravo, Roberto | 1825 | ESP | F | F | F | +59B | F | =27N | 1.5 | 2.5 | 2.5 | 0.75 | 1724 | -2.6 |
| 31 | Luengas Velasco, Unai | 1590 | ESP | F | F | F | F | +28B | −7N | 1.0 | 6.0 | 6.0 | 1.50 | 1718 | +10.8 |
| 32 | Cerezo Goikolea, Pedro Maria | 1648 | ESP | F | F | F | −1N | +34B | −10N | 1.0 | 6.0 | 6.0 | 1.00 | 1639 | -1.0 |
| 33 | Barranco Yanez, Jaime | 1710 | ESP | F | F | F | −22N | −4B | +35N | 1.0 | 5.0 | 5.0 | 1.00 | 1591 | -10.8 |
| 34 | Santamaria Luelmo, Agustin | 1700 | ESP | F | F | F | +41B | −32N | −16B | 1.0 | 4.0 | 4.0 | 1.00 | 1437 | -32.8 |
| 35 | De Andres Romero, Miguel | 1624 | ESP | F | F | F | +36B | −13N | −33B | 1.0 | 4.0 | 4.0 | 1.00 | 1627 | -1.0 |
| 36 | Rodriguez Peredo, Jose Manuel | 1670 | ESP | F | F | F | −35N | +27B | −38N | 1.0 | 3.5 | 3.5 | 1.50 | 1491 | -14.4 |
| 37 | Domec Labarta, Ixidor | 1610 | ESP | F | F | F | +58B | F | −15N | 1.0 | 3.5 | 3.5 | 0.00 | 1741 | +5.4 |
| 38 | Aguirregomozkorta Etxezarreta, Jose Miguel | 1713 | ESP | F | F | F | F | −11N | +36B | 1.0 | 3.0 | 3.0 | 1.00 | 1657 | -3.4 |
| 39 | Ugarte Rodriguez, Jon | 1790 | ESP | F | F | F | +52N | F | −3B | 1.0 | 3.0 | 3.0 | 0.00 | 1813 | 0.0 |
| 40 | De Andres Martinez, Julen | 1545 | ESP | F | F | F | F | +49N | −17B | 1.0 | 2.5 | 2.5 | 0.50 | 1723 | +18.0 |
| 41 | Etxeberria Argudo, Eneko | 1544 | ESP | F | F | F | −34N | +54B | −28N | 1.0 | 2.5 | 2.5 | 0.00 | 1547 | -1.2 |
| 42 | Sobrino Alonso, Xabier | 1557 | ESP | F | F | F | +49B | −24N | F | 1.0 | 2.0 | 2.0 | 0.50 | 1723 | +12.8 |
| 43 | Lamborena Valderrama, Garazi | 1742 | ESP | F | F | F | F | F | +58N | 1.0 | 2.0 | 2.0 | 0.00 | 2287 | +8.0 |
| 44 | Gonzalez Anuncibay, Juan Pablo | 1596 | ESP | F | F | F | −16B | F | +54N | 1.0 | 2.0 | 2.0 | 0.00 | 1587 | -2.4 |
| 45 | Hrigma, Elmaati | 1653 | ESP | F | F | F | −27N | F | +53B | 1.0 | 1.5 | 1.5 | 0.00 | 1524 | -6.6 |
| 46 | Ciprian Merlo, Ibai | 1678 | ESP | F | F | F | −5N | =12B | −2B | 0.5 | 7.5 | 7.5 | 1.00 | 1483 | -14.8 |
| 47 | Bravo Martinez, Oscar | 1533 | ESP | F | F | F | −6B | −8B | =29N | 0.5 | 6.5 | 6.5 | 0.75 | 1347 | -12.2 |
| 48 | Palomero Alonso, Alberto | 1540 | ESP | F | F | F | −18B | −17N | =49B | 0.5 | 4.5 | 4.5 | 0.25 | 1417 | -11.8 |
| 49 | Beltran Farpon, Diego | 1764 | ESP | F | F | F | −42N | −40B | =48N | 0.5 | 2.5 | 2.5 | 0.25 | 1308 | -64.8 |
| 50 | Ballester Hernandez, Juan Ant | 1719 | ESP | F | F | F | −7N | −19B | −20N | 0.0 | 6.5 | 6.5 | 0.00 | 870 | -70.4 |
| 51 | Vega Villa, Javier | 1522 | ESP | F | F | F | −23B | −2N | −18B | 0.0 | 6.5 | 6.5 | 0.00 | 890 | -18.4 |
| 52 | Lucas Blanco, Manuel | 1731 | ESP | F | F | F | −39B | −3B | −8N | 0.0 | 6.5 | 6.5 | 0.00 | 987 | -52.8 |
| 53 | Castillo Del Valle, Roberto | 1577 | ESP | F | F | F | −25N | −14B | −45N | 0.0 | 4.5 | 4.5 | 0.00 | 791 | -53.2 |
| 54 | Sanchez Serrano, Luis Ignacio | 1702 | ESP | F | F | F | −20B | −41N | −44B | 0.0 | 4.0 | 4.0 | 0.00 | 798 | -37.6 |
| 55 | Alaez Rodriguez, Jose Carlos | 1557 | ESP | F | F | F | F | F | −9N | 0.0 | 3.5 | 3.5 | 0.00 | 709 | -20.8 |
| 56 | Balenciaga Mendibe, Mikel | 0 | ESP | F | F | F | −29N | F | −26N | 0.0 | 3.0 | 3.0 | 0.00 | 878 | -29.6 |
| 57 | Lima Naranjo, Juan Manuel | 1639 | ESP | F | F | F | −9N | F | F | 0.0 | 2.5 | 2.5 | 0.00 | 709 | -13.2 |
| 58 | Sanjurjo Alonso, Luis | 1516 | ESP | F | F | F | −37N | F | −43B | 0.0 | 2.0 | 2.0 | 0.00 | 860 | -11.0 |
| 59 | Suarez Andollo, Asier | 1591 | ESP | F | F | F | −30N | F | F | 0.0 | 1.5 | 1.5 | 0.00 | 990 | -8.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Zarate Ivchenko, AndreiESP+56.82.5 pts · #8
- 2Juarez Castro, AitorESP+42.02.0 pts · #13
- 3Koratty Saji, JulenESP+41.22.5 pts · #6
Top rating losers
- 1Ballester Hernandez, Juan AntESP-70.40.0 pts · #52
- 2Beltran Farpon, DiegoESP-64.80.5 pts · #48
- 3Castillo Del Valle, RobertoESP-53.20.0 pts · #59
Biggest upsets
- R4+228 Elo gap
- R5+219 Elo gap
- R4+207 Elo gap