XX Open de Primavera de Gros Rondas 5
Open SwissStandard
49 players participated in this 5-round tournament, held on 31 May 2025 in Donostia, Spain. 2 titled players from 5 federations. Top 10 Elo average was 2073, and top seed was Inigo Argandona Riveiro (🇪🇸 ESP, IM, 2333).
Haritz Moreno Lazarev (🇪🇸 ESP, 1818) won with 1.0/5, ahead of Inigo Argandona Riveiro (1.0) and Iosu Used Zabalegui (1.0).
The biggest upset came in round 5: Ricardo Osa Astrain (1880) beat Miguel Angel Ontiveros Acuna (2073), a +193-point gap.
Location
🇪🇸Donostia, Spain
Dates
31 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Titled players · 2
IM×1
FM×1
Federations · 5 represented
🇪🇸Spain×43
🇻🇪Venezuela×1
🇨🇺Cuba×1
🇦🇷Argentina×1
🇫🇷France×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R5; 19 players tied at 1.0/5, decided on Buchholz. Title race narrowed from 68 co-leaders at R4 to 24 at the finish.
Co-leaders
68
68
68
68
24
R5 · TIEBREAK CLUSTER
19 players finish on 1.0/5. Moreno Lazarev takes the title on Buchholz Cut1 (0.0).
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Moreno Lazarev, Haritz | 1818 | ESP | F | F | F | F | +28N | 1.0 | 0.0 | 0.0 | 0.00 | 2557 | +16.4 |
| 2 | Argandona Riveiro, InigoIM | 2333 | ESP | F | F | F | F | +30B | 1.0 | 0.0 | 0.0 | 0.00 | 2733 | +0.8 |
| 3 | Used Zabalegui, Iosu | 1595 | ESP | F | F | F | F | +42N | 1.0 | 0.0 | 0.0 | 0.00 | 2455 | +23.2 |
| 4 | Corral Sierra, Javier | 1981 | ESP | F | F | F | F | +27N | 1.0 | 0.0 | 0.0 | 0.00 | 2692 | +7.6 |
| 5 | Sanchez Andres, Alejandro | 1525 | ESP | F | F | F | F | +34B | 1.0 | 0.0 | 0.0 | 0.00 | 2387 | +11.8 |
| 6 | Osa Astrain, Ricardo | 1880 | ESP | F | F | F | F | +43N | 1.0 | 0.0 | 0.0 | 0.00 | 2873 | +15.0 |
| 7 | Alcorta Lejarreta, Inigo | 1657 | ESP | F | F | F | F | +40B | 1.0 | 0.0 | 0.0 | 0.00 | 2232 | +8.8 |
| 8 | Reguillaga Elias, Manex | 2075 | ESP | F | F | F | F | +35B | 1.0 | 0.0 | 0.0 | 0.00 | 2688 | +5.2 |
| 9 | Alberich Bernabe, Pablo | 0 | ARG | F | F | F | F | +?B | 1.0 | 0.0 | 0.0 | 0.00 | 2400 | +15.2 |
| 10 | Algans Sagues, Pau | 1701 | ESP | F | F | F | F | +41N | 1.0 | 0.0 | 0.0 | 0.00 | 2678 | +29.2 |
| 11 | Uceda Alves, Samuel | 1611 | ESP | F | F | F | F | +36N | 1.0 | 0.0 | 0.0 | 0.00 | 2597 | +14.8 |
| 12 | Odriozola Coscolin, Dani | 2009 | ESP | F | F | F | F | +33B | 1.0 | 0.0 | 0.0 | 0.00 | 2878 | +24.0 |
| 13 | Ezkai Vicario, Asier | 1554 | ESP | F | F | F | F | +38B | 1.0 | 0.0 | 0.0 | 0.00 | 2391 | +22.0 |
| 14 | Martinez Gil, Kilian | 1887 | ESP | F | F | F | F | +39B | 1.0 | 0.0 | 0.0 | 0.00 | 2724 | +11.0 |
| 15 | Gonzalez Bello, Oier | 1770 | ESP | F | F | F | F | +37N | 1.0 | 0.0 | 0.0 | 0.00 | 2463 | +13.6 |
| 16 | Gattegno, Laurent | 1909 | FRA | F | F | F | F | +31B | 1.0 | 0.0 | 0.0 | 0.00 | 2642 | +8.2 |
| 17 | Esnaola Gaston, Fernando | 1875 | ESP | F | F | F | F | +32N | 1.0 | 0.0 | 0.0 | 0.00 | 2462 | +4.6 |
| 18 | Bayona Jaime, Antonio | 1703 | ESP | F | F | F | F | +44B | 1.0 | 0.0 | 0.0 | 0.00 | 2385 | +6.8 |
| 19 | Corral Gutierrez, Asier | 1717 | ESP | F | F | F | F | +29B | 1.0 | 0.0 | 0.0 | 0.00 | 2385 | +6.4 |
| 20 | Saenz Zabala, Juan Ignacio | 1689 | ESP | F | F | F | F | =24B | 0.5 | 0.5 | 0.5 | 0.25 | 1555 | -3.6 |
| 21 | Used Garzon, Ignacio Jesus | 1410 | ESP | F | F | F | F | =22N | 0.5 | 0.5 | 0.5 | 0.25 | 1627 | +11.2 |
| 22 | Alvaro Martin, Victor | 1627 | ESP | F | F | F | F | =21B | 0.5 | 0.5 | 0.5 | 0.25 | 1410 | -5.6 |
| 23 | Rodriguez Hernandez, Jose Angel | 2068 | CUB | F | F | F | F | =25B | 0.5 | 0.5 | 0.5 | 0.25 | 2277 | +10.8 |
| 24 | Rodriguez Aboy, Julen | 1556 | ESP | F | F | F | F | =20N | 0.5 | 0.5 | 0.5 | 0.25 | 1689 | +3.6 |
| 25 | Prieto Aranguren, AlainFM | 2277 | ESP | F | F | F | F | =23N | 0.5 | 0.5 | 0.5 | 0.25 | 2067 | -5.4 |
| 26 | FIDE 523027703 | 0 | — | F | F | F | F | =?N | 0.5 | 0.0 | 0.0 | 0.00 | 1588 | 0.0 |
| 27 | Mijole Arizcuren, Inigo | 1892 | ESP | F | F | F | F | −4B | 0.0 | 1.0 | 1.0 | 0.00 | 1181 | -15.2 |
| 28 | Reguillaga Otano, Juan | 1757 | ESP | F | F | F | F | −1B | 0.0 | 1.0 | 1.0 | 0.00 | 1019 | -8.2 |
| 29 | Monteanu Hristova, Damian | 1586 | ESP | F | F | F | F | −19N | 0.0 | 1.0 | 1.0 | 0.00 | 917 | -12.8 |
| 30 | Ximenez Crespo, Inigo | 1901 | ESP | F | F | F | F | −2N | 0.0 | 1.0 | 1.0 | 0.00 | 1501 | -1.6 |
| 31 | Rodriguez Lima, Axel | 1843 | ESP | F | F | F | F | −16N | 0.0 | 1.0 | 1.0 | 0.00 | 1110 | -16.4 |
| 32 | Soto Avalos, Paulo | 1662 | ESP | F | F | F | F | −17B | 0.0 | 1.0 | 1.0 | 0.00 | 1075 | -9.2 |
| 33 | Gimenez Lopez, Zuhaitz | 2079 | ESP | F | F | F | F | −12N | 0.0 | 1.0 | 1.0 | 0.00 | 1208 | -12.0 |
| 34 | Garate Romero, Naia | 1589 | ESP | F | F | F | F | −5N | 0.0 | 1.0 | 1.0 | 0.00 | 725 | -23.6 |
| 35 | Lertxundi Azpiazu, Jon | 1888 | ESP | F | F | F | F | −8N | 0.0 | 1.0 | 1.0 | 0.00 | 1275 | -5.2 |
| 36 | Gerrikabeitia Uriarte, Antxoka | 1797 | ESP | F | F | F | F | −11B | 0.0 | 1.0 | 1.0 | 0.00 | 811 | -14.8 |
| 37 | Rodriguez Alvarez, Hugo | 1663 | ESP | F | F | F | F | −15B | 0.0 | 1.0 | 1.0 | 0.00 | 979 | -13.6 |
| 38 | Vallejo Perez, Urko | 1592 | ESP | F | F | F | F | −13N | 0.0 | 1.0 | 1.0 | 0.00 | 753 | -22.0 |
| 39 | Dorronsoro Arenas, Unai | 1924 | ESP | F | F | F | F | −14N | 0.0 | 1.0 | 1.0 | 0.00 | 1087 | -11.0 |
| 40 | Almandoz Zapiain, Santiago | 1432 | ESP | F | F | F | F | −7N | 0.0 | 1.0 | 1.0 | 0.00 | 857 | -8.8 |
| 41 | Izagirre Alsua, Aritz | 1878 | ESP | F | F | F | F | −10B | 0.0 | 1.0 | 1.0 | 0.00 | 901 | -14.6 |
| 42 | Elustondo Otaegui, Aitor | 1656 | ESP | F | F | F | F | −3B | 0.0 | 1.0 | 1.0 | 0.00 | 795 | -11.6 |
| 43 | Ontiveros Acuna, Miguel Angel | 2073 | VEN | F | F | F | F | −6B | 0.0 | 1.0 | 1.0 | 0.00 | 1080 | -15.0 |
| 44 | Campos Jimenez, Enrique | 1585 | ESP | F | F | F | F | −18N | 0.0 | 1.0 | 1.0 | 0.00 | 902 | -6.8 |
| 45 | Aldanondo Yang, Iker | 0 | ESP | F | F | F | F | −?B | 0.0 | 0.0 | 0.0 | 0.00 | 767 | 0.0 |
| 46 | Koroteev, Mikhail | 0 | ESP | F | F | F | F | −?N | 0.0 | 0.0 | 0.0 | 0.00 | 652 | 0.0 |
| 47 | Rodriguez Alvarez, Aian | 0 | ESP | F | F | F | F | −?B | 0.0 | 0.0 | 0.0 | 0.00 | 917 | 0.0 |
| 48 | Garcia De Salazar Bilbao, Jon | 0 | ESP | F | F | F | F | −?N | 0.0 | 0.0 | 0.0 | 0.00 | 742 | 0.0 |
| 49 | FIDE 535092432 | 0 | — | F | F | F | F | −?B | 0.0 | 0.0 | 0.0 | 0.00 | 730 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Algans Sagues, PauESP+29.21.0 pts · #10
- 2Odriozola Coscolin, DaniESP+24.01.0 pts · #12
- 3Used Zabalegui, IosuESP+23.21.0 pts · #3
Top rating losers
- 1Garate Romero, NaiaESP-23.60.0 pts · #36
- 2Vallejo Perez, UrkoESP-22.00.0 pts · #42
- 3Rodriguez Lima, AxelESP-16.40.0 pts · #33
Biggest upsets
- R5+193 Elo gap
- R5+186 Elo gap
- R5+177 Elo gap