Campeonato de Euskadi Equipos 2026 - Zonal Bizkaia - Grupo 1 Rondas 1-3

Open SwissStandard

68 players participated in this 3-round tournament, held from 10 Jan 2026 to 24 Jan 2026 in Bilbao, Spain. 1 titled players. Top 10 Elo average was 2011, and top seed was Aritz Zabala Perez (🇪🇸 ESP, 2163).

Miguel Angel Melchor Martin de la Sierra (🇪🇸 ESP, 1783) won with 3.0/3, ahead of Enrique Umaran Del Campo (2.5) and Ibai Ciprian Merlo (2.0).

The biggest upset came in round 2: Ibai Ciprian Merlo (1690) beat Igor Fernandez-Rivera Ortiz (1856), a +166-point gap.

Location

🇪🇸Bilbao, Spain

Dates

10 Jan 2026 → 24 Jan 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 3 rounds

Top seed

🇪🇸Aritz Zabala Perez2163

Avg top 10

2,011

Participants

Titled players · 1

CM×1

Federations · 1 represented

🇪🇸Spain×67

Top 3

🥇
Miguel Angel Melchor Martin de la Sierra
🇪🇸ESP·1783
3.0pts·2609perf+42.8
🥈
Enrique Umaran Del Campo
🇪🇸ESP·1832
2.5pts·1976perf+11.0
🥉
Ibai Ciprian Merlo
🇪🇸ESP·1690
2.0pts·1945perf+20.4

How it unfolded

Top 6 · 3 rounds

Miguel Angel Melchor Martin de la Sierra led from R2; +0.5-point edge over the runner-up.

Co-leaders

Melchor Martin de la Sierra3Umaran Del Campo2.5Roman Mediavilla2Dunaiturria Uribezubia2Bacigalupe Dehesa2Martinez De Soria Gordon2

R2–R3 · LEAD HELD

Miguel Angel Melchor Martin de la Sierra held the sole lead from R2 through R3 without losing it.

R1–R3 · WIN STREAK

Miguel Angel Melchor Martin de la Sierra won 3 in a row (R1–R3).

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	Pts	Bu C1	Bu	SB	Perf	Δ
1	Melchor Martin de la Sierra, Miguel Angel	1783	ESP	+53B	+22B	+52N	3.0	1.0	1.0	1.00	2609	+42.8
2	Umaran Del Campo, Enrique	1832	ESP	=39N	+56N	+51N	2.5	0.5	0.5	0.25	1976	+11.0
3	Ciprian Merlo, Ibai	1690	ESP	−11N	+10B	+24B	2.0	3.0	4.0	2.50	1945	+20.4
4	Roman Mediavilla, Jorge	1969	ESP	+12B	F	+21N	2.0	2.5	2.5	2.50	2656	+14.0
5	Bacigalupe Dehesa, Peio	1965	ESP	=40B	=14N	+55N	2.0	2.0	2.0	1.00	1917	-1.6
6	Dunaiturria Uribezubia, Paulo	1886	ESP	+38N	F	+28N	2.0	1.5	1.5	1.50	2658	+18.4
7	Santos Fernandez, Izei	1797	ESP	−21B	+59B	+37N	2.0	1.5	1.5	0.50	1967	+13.6
8	Martinez De Soria Gordon, Jose Manuel	1924	ESP	F	+58B	+23N	2.0	1.0	1.0	1.00	2692	+18.2
9	Delgado Bilbao, Jorge	2006	ESP	+51N	F	+54B	2.0	0.0	0.0	0.00	2640	+11.2
10	Fernandez-Rivera Ortiz, Igor	1856	ESP	=37B	−3N	+13B	1.5	3.5	4.0	1.75	1777	-6.2
11	Solabarrieta Agorria, Inigo	1840	ESP	+3B	F	=17B	1.5	3.5	3.5	2.75	1955	+5.8
12	Leniz Markes, Inaki	1941	ESP	−4N	+25N	=27N	1.5	3.0	4.0	1.50	1888	-4.2
13	Soria Ayarzaguena, Iker	1738	ESP	+61N	=23N	−10N	1.5	2.5	2.5	0.50	1683	-5.2
14	Fernandez Arroyo, Cesar	1935	ESP	+62N	=5B	F	1.5	2.0	2.0	1.00	2124	+9.8
15	Soriano Rubio, Jesus Maria	1786	ESP	=42N	+21B	F	1.5	1.5	1.5	1.25	1981	+10.2
16	Martin Echeandia, IbonCM	2060	ESP	F	=43N	+31N	1.5	1.5	1.5	1.25	2063	+0.2
17	Ortiz Garcia, Juan Jose	1834	ESP	F	+64B	=11N	1.5	1.5	1.5	0.75	1840	+0.4
18	Rosa Mediano, Alberto	1663	ESP	+63N	−29N	=44B	1.5	1.5	1.5	0.25	1471	-20.0
19	Cano Ortega, Ander	1885	ESP	+60N	=26B	F	1.5	1.0	1.0	0.50	2083	+10.4
20	Zabala Perez, Aritz	2163	ESP	F	=45N	+57B	1.5	0.5	0.5	0.25	2224	+3.2
21	Arroyo Rodriguez, David	1771	ESP	+7N	−15N	−4B	1.0	4.0	5.5	2.00	1726	-3.6
22	Malkowski, Marcin Piotr	1820	ESP	+24N	−1N	F	1.0	4.0	4.0	1.00	1773	-2.6
23	Eiguren Martinez, Kepa	1895	ESP	=41B	=13B	−8B	1.0	3.5	4.0	1.00	1703	-30.8
24	Goni Barrena, Julen	1763	ESP	−22B	+67B	−3N	1.0	3.0	3.0	0.00	1636	-20.0
25	Gallastegui, Jon Ander	1807	ESP	F	−12B	+30N	1.0	2.5	2.5	1.00	1930	+6.6
26	Carrascal Rosal, Alberto	1911	ESP	F	=19N	=38B	1.0	2.0	2.0	1.00	1898	-0.8
27	Basto Auzmendi, Mario	1889	ESP	F	=46N	=12B	1.0	2.0	2.0	1.00	1935	+2.6
28	De la Cruz Esteibarlanda, Ametz	1803	ESP	+55B	F	−6B	1.0	2.0	2.0	0.00	1718	-8.0
29	Momoitio Garcia, Angel	1701	ESP	F	+18B	F	1.0	1.5	1.5	1.50	2463	+9.0
30	Garcia Mtez de la Hidalga, Alber	1920	ESP	F	+41B	−25B	1.0	1.5	1.5	0.50	1815	-5.6
31	Arabiotorre Arbulu, Aitor	1810	ESP	+65N	F	−16B	1.0	1.5	1.5	0.00	1798	-0.4
32	Santos Perez, David	0	ESP	F	F	+33B	1.0	1.0	1.0	1.00	1828	0.0
33	Cenizo Vicente, Jesus Rafael	1808	ESP	+68B	F	−32N	1.0	1.0	1.0	0.00	2610	+10.0
34	De La Fuente Pinedo, Mikel	1852	ESP	F	+66N	F	1.0	0.0	0.0	0.00	2527	+6.6
35	Gallastegui Arregi, Aitor	1852	ESP	+54B	F	F	1.0	0.0	0.0	0.00	2616	+9.0
36	Ros Parra, Jorge	1827	ESP	F	+57N	F	1.0	0.0	0.0	0.00	2717	+12.4
37	Momoitio Garcia, Pablo	1905	ESP	=10N	F	−7B	0.5	3.5	3.5	0.75	1634	-14.4
38	Larrabide Fontaneda, Inaki	1911	ESP	−6B	F	=26N	0.5	3.0	3.0	0.50	1706	-21.2
39	Rivera Lopez, Pablo	1757	ESP	=2B	F	F	0.5	2.5	2.5	1.25	1832	+4.0
40	Madariaga Ibarra, Jose Antonio	1876	ESP	=5N	F	F	0.5	2.0	2.0	1.00	1965	+4.8
41	Villanueva Viton, Jose Manuel	1822	ESP	=23N	−30N	F	0.5	2.0	2.0	0.50	1715	-5.4
42	Rocha Espejo, Julio Cesar	1805	ESP	=15B	F	F	0.5	1.5	1.5	0.75	1786	-0.6
43	Saiz Santos, Jorge	1930	ESP	F	=16B	F	0.5	1.5	1.5	0.75	2060	+3.6
44	Fernandez Paramo, Oier	1627	ESP	F	F	=18N	0.5	1.5	1.5	0.75	1663	+2.0
45	Seoane Rodriguez, Unai	2145	ESP	F	=20B	F	0.5	1.5	1.5	0.75	2163	+0.6
46	Rollan Vallejos, Javier	1929	ESP	F	=27B	F	0.5	1.0	1.0	0.50	1889	-2.4
47	Aboitiz Olabarriaga, Benat	1917	ESP	F	=48B	F	0.5	0.5	0.5	0.25	1848	-2.0
48	Gallastegi Zorrozua, Karmelo	1848	ESP	F	=47N	F	0.5	0.5	0.5	0.25	1917	+2.0
49	Pelea Martinez, Roberto	1926	ESP	F	F	=50N	0.5	0.5	0.5	0.25	1991	+1.8
50	Redondo Prieto, Endika	1991	ESP	F	F	=49B	0.5	0.5	0.5	0.25	1926	-1.8
51	Antolin Aguirre, Antonio	1864	ESP	−9B	F	−2B	0.0	4.5	4.5	0.00	1119	-17.0
52	Jauregi Unanue, Miguel Angel	0	ESP	F	F	−1B	0.0	3.0	3.0	0.00	983	0.0
53	Tamblay Rodriguez, Oscar	1797	ESP	−1N	F	F	0.0	3.0	3.0	0.00	983	-10.4
54	Aginako Somoza, Eneko	1816	ESP	−35N	F	−9N	0.0	3.0	3.0	0.00	1129	-14.0
55	Ibarrola Gobantes, Jokin	1550	ESP	−28N	F	−5B	0.0	3.0	3.0	0.00	1077	-10.8
56	Bravo Martinez, Oscar	1487	ESP	F	−2B	F	0.0	2.5	2.5	0.00	1032	-2.2
57	Simon Alfonso, Jose Antonio	1917	ESP	F	−36B	−20N	0.0	2.5	2.5	0.00	1195	-16.2
58	Sanabria Alvaro, Oscar	1888	ESP	F	−8N	F	0.0	2.0	2.0	0.00	1124	-9.0
59	Vivanco Revuelta, Jesus Maria	1850	ESP	F	−7N	F	0.0	2.0	2.0	0.00	997	-11.4
60	Ayuso Moradillo, Juan Felix	1868	ESP	−19B	F	F	0.0	1.5	1.5	0.00	1085	-9.6
61	FIDE 523042290	0	—	−13B	F	−?N	0.0	1.5	1.5	0.00	1012	0.0
62	Perez Maranon, Juan Jose	1897	ESP	−14B	F	F	0.0	1.5	1.5	0.00	1135	-9.0
63	Agirre Olaeta Asier	0	ESP	−18B	F	F	0.0	1.5	1.5	0.00	863	0.0
64	Moro Saiz, Iosu	0	ESP	F	−17N	F	0.0	1.5	1.5	0.00	1034	0.0
65	Suarez Andollo, Asier	1536	ESP	−31B	F	F	0.0	1.0	1.0	0.00	1010	-6.8
66	Sevillano Lopez, Jose Ramon	1727	ESP	F	−34B	F	0.0	1.0	1.0	0.00	1052	-6.6
67	Torre Fernandez, Rodrigo	1774	ESP	F	−24N	F	0.0	1.0	1.0	0.00	963	-10.4
68	Garcia Mtez de la Hidalga, Enrique	1810	ESP	−33N	F	F	0.0	1.0	1.0	0.00	1008	-10.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Melchor Martin de la Sierra, Miguel AngelESP
+42.8
3.0 pts · #5
2Ciprian Merlo, IbaiESP
+20.4
2.0 pts · #9
3Dunaiturria Uribezubia, PauloESP
+18.4
2.0 pts · #3

Top rating losers

1Eiguren Martinez, KepaESP
-30.8
1.0 pts · #24
2Larrabide Fontaneda, InakiESP
-21.2
0.5 pts · #40
3Rosa Mediano, AlbertoESP
-20.0
1.5 pts · #36

Biggest upsets

R2+166 Elo gap
Ciprian Merlo, Ibai1690 beat Fernandez-Rivera Ortiz, Igor1856
R3+113 Elo gap
Gallastegui, Jon Ander1807 beat Garcia Mtez de la Hidalga, Alber1920
R3+108 Elo gap
Santos Fernandez, Izei1797 beat Momoitio Garcia, Pablo1905