I Open Internacional de Ajedrez Ciudad de Irun

SwissStandard

104 players participated in this 7-round tournament, held from 05 Dec 2025 to 08 Dec 2025 in Irun (Gipuzkoa), Spain. 19 titled players from 8 federations. Top 10 Elo average was 2388, and top seed was Yuri Solodovnichenko (🇺🇦 UKR, GM, 2510).

David Larino Nieto (🇪🇸 ESP, GM, 2427) won with 5.5/7, ahead of Yuri Solodovnichenko (5.5) and Sergio Minero Pineda (5.5). Larino Nieto shared the lead from round 1, winning on tie-break.

The biggest upset came in round 5: Alex Franco Orbegozo (1491) beat Cecilia Perez Sodupe (1875), a +384-point gap.

Location

🇪🇸Irun (Gipuzkoa), Spain

Dates

05 Dec 2025 → 08 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 7 rounds

Top seed

🇺🇦GMYuri Solodovnichenko2510

Avg top 10

2,388

Participants

104

Titled players · 19

GM×3

IM×8

FM×4

CM×4

Federations · 8 represented

🇪🇸Spain×85

🇫🇷France×3

🇻🇪Venezuela×2

🇨🇳China×2

🇨🇺Cuba×1

🇺🇦Ukraine×1

🇮🇳India×1

🇲🇽Mexico×1

Top 3

🥇
GMDavid Larino Nieto
🇪🇸ESP·2427
5.5pts·2521perf+9.1
🥈
GMYuri Solodovnichenko
🇺🇦UKR·2510
5.5pts·2520perf+1.9
🥉
IMSergio Minero Pineda
🇨🇷CRC·2342
5.5pts·2400perf+6.2

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 7 players tied at 5.5/7, decided on Buchholz.

Co-leaders

Perez Marimon5.5Solodovnichenko5.5Shyaam Nikhil5.5Minero Pineda5.5Vesga Izeta5.5Larino Nieto5.5

R7 · TIEBREAK CLUSTER

7 players finish on 5.5/7. Larino Nieto takes the title on Buchholz Cut1 (31.0).

WIN STREAKS · 2 top finishers

IM Jorge De Jesus Perez Marimon 3 wins (R1–R3)GM Yuri Solodovnichenko 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1IMJorge De Jesus Perez Marimon	*	—	—	—
2GMYuri Solodovnichenko	—	*	½	—
3GMShyaam Nikhil P	—	½	*	—
4IMSergio Minero Pineda	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Larino Nieto, DavidGM	2427	ESP	+52B	+19N	+6B	+10N	=9B	=2B	=4N	5.5	31.0	34.0	26.00	2521	+9.1
2	Solodovnichenko, YuriGM	2510	UKR	+28B	+51N	+21B	=8N	+16B	=1N	=5B	5.5	29.0	32.0	24.00	2520	+1.9
3	Minero Pineda, SergioIM	2342	CRC	+54B	+69N	=12B	=17N	+18B	=6N	+8B	5.5	27.5	30.5	23.00	2400	+6.2
4	Perez Marimon, Jorge De JesusIM	2380	CUB	+45B	+18N	+24B	=16N	=8B	+35N	=1B	5.5	27.0	30.5	23.00	2480	+9.6
5	Shyaam Nikhil PGM	2400	IND	+42N	=20B	+75N	+23B	=35N	+11B	=2N	5.5	26.0	28.5	21.75	2420	+3.4
6	Vesga Izeta, MarkelFM	2259	ESP	+76N	+25B	−1N	+39B	+36N	=3B	+35B	5.5	25.5	27.5	19.25	2372	+22.6
7	Martin Duque, JesusIM	2326	ESP	+85B	+68N	=33B	+40N	=17B	=9N	+19B	5.5	24.5	26.5	19.75	2380	+5.8
8	Martinez Reyes, Pedro RamonIM	2375	VEN	+38N	+13B	+50N	=2B	=4N	+15B	−3N	5.0	30.0	33.0	22.00	2378	+3.0
9	Akhvlediani, IrakliIM	2444	GEO	+46N	+14B	=23N	+44B	=1N	=7B	=17B	5.0	28.0	31.5	21.75	2371	-3.4
10	Argandona Riveiro, InigoIM	2337	ESP	+61N	+59B	+11N	−1B	F	+24N	+16B	5.0	25.0	25.0	19.50	2449	+9.1
11	Fernandez De Bobadilla, GabrielCM	2161	ESP	+57B	+65N	−10B	+31N	+37B	−5N	+68B	5.0	24.0	27.0	16.50	2177	+7.8
12	Becerra, Juan DavidFM	2209	COL	+77N	+56B	=3N	−35B	=25N	+26B	+67N	5.0	23.0	25.0	16.75	2202	+4.4
13	Merino Olaverri, Jon	1986	ESP	+64B	−8N	+85B	+28N	−23B	+52N	+36B	5.0	22.5	24.5	15.50	2120	+51.6
14	Reguillaga Elias, Manex	2090	ESP	+58B	−9N	+45B	−37N	+54B	+31N	+50B	5.0	22.0	25.0	16.50	2108	+7.6
15	Alvarez Perez, AdanCM	2133	ESP	+78B	+95N	−16B	+26N	+50B	−8N	+42B	5.0	22.0	23.0	13.50	2182	+11.2
16	Romero Barreto, Jaime JoseIM	2320	VEN	+55N	+39B	+15N	=4B	−2N	+22B	−10N	4.5	29.0	32.0	18.75	2304	+1.0
17	Hou, Yifan(HLJ)	2325	CHN	F	+48B	+20N	=3B	=7N	+30B	=9N	4.5	28.0	28.0	20.00	2414	+16.0
18	Sahelices Casado, Roberto	2081	ESP	+83N	−4B	+54N	+60B	−3N	=27B	+38N	4.5	24.5	26.5	13.50	2021	-4.4
19	Gimenez Lopez, Zuhaitz	2083	ESP	+93N	−1B	+38N	=56B	+41N	+40B	−7N	4.5	24.5	25.5	13.00	2093	+6.8
20	Mayo Martinez, Manuel	2083	ESP	+74B	=5N	−17B	+62N	=42B	=37N	+43B	4.5	23.5	26.0	15.25	2057	-0.2
21	Bru Rullo, LlatzerFM	2286	ESP	+62B	+29N	−2N	+59B	=33N	+51B	F	4.5	22.5	22.5	15.00	2290	+4.0
22	Martel Bruniaux, MalkoCM	2179	ESP	+72B	=43N	−89B	+73N	+44B	−16N	+66B	4.5	19.5	21.5	13.25	2053	-32.4
23	Lakuntza Plazaola, Asier	2232	ESP	+63B	+47N	=9B	−5N	+13N	−33B	=69B	4.0	26.0	29.0	15.50	2158	-9.8
24	Jimenez Almeida, Luis DavidFM	2228	ESP	+41N	+26B	−4N	=25B	+56N	−10B	=27N	4.0	26.0	29.0	14.50	2069	-21.6
25	Etayo Delgado, Asier	1931	ESP	+104B	−6N	+49B	=24N	=12B	−36N	+61B	4.0	24.5	24.5	11.00	2047	+31.2
26	Bravo Freire, Aitor	1911	ESP	+70B	−24N	+57B	−15B	+76N	−12N	+63B	4.0	23.0	25.0	11.00	1940	+6.4
27	Vernier Urtasun, Jon	1849	ESP	+53B	=36N	−40B	+29N	=90B	=18N	=24B	4.0	22.5	24.5	14.00	2120	+76.4
28	Izagirre Alsua, Aritz	1848	ESP	−2N	+101B	+58N	−13B	+53N	−67B	+60N	4.0	22.5	23.0	9.50	1844	-1.2
29	Diez Viera, Oscar	1956	ESP	+71N	−21B	=55N	−27B	+81B	=48N	+37B	4.0	21.5	23.5	11.75	1880	-11.4
30	Odriozola Coscolin, Alex	2207	ESP	F	+73B	−44N	+53B	+32N	−17N	+59B	4.0	20.5	20.5	12.50	2044	-16.2
31	Izquierdo Arruferia, Joseba	1931	ESP	+102N	−50B	+72N	−11B	+55N	−14B	+76N	4.0	20.5	20.5	7.50	1925	-0.8
32	Juan Miguel, Javier	1868	ESP	+97B	=40N	−36B	+82N	−30B	=49N	+57B	4.0	19.5	20.5	9.50	1905	+8.0
33	Masip Tressera, Oriol	2144	ESP	+87B	+37N	=7N	F	=21B	+23N	F	4.0	19.5	19.5	14.50	2328	+25.6
34	Apostol, Ecaterina	1580	ESP	−51B	−53N	+71N	−38B	+94N	+97B	+52B	4.0	16.5	17.5	8.00	1750	+15.6
35	Chen, HongsenIM	2341	CHN	F	+66N	+67B	+12N	=5B	−4B	−6N	3.5	27.5	27.5	13.75	2268	-4.0
36	Fernandez Garcia, Juan CarlosCM	2141	ESP	+60N	=27B	+32N	F	−6B	+25B	−13N	3.5	25.5	25.5	13.00	1996	-18.4
37	Gonzalez Peiro, Lukas	1849	MEX	+92N	−33B	+78N	+14B	−11N	=20B	−29N	3.5	24.5	26.0	10.75	1946	+24.8
38	Laguna Echeverria, Jose Maria	1750	ESP	−8B	+64N	−19B	+34N	+87B	=69N	−18B	3.5	24.0	26.0	10.50	1856	+15.0
39	Munoz Ferreira, Ibon	1954	ESP	+84B	−16N	+63B	−6N	+57B	−42N	=45B	3.5	23.0	25.0	9.75	1862	-31.6
40	Banos, Oscar	2144	ARG	+82N	=32B	+27N	−7B	F	−19N	+73B	3.5	22.5	22.5	10.50	2002	-16.6
41	De la Cruz Esteibarlanda, Ametz	1712	ESP	−24B	+70N	=47B	+65N	−19B	−43N	+77B	3.5	21.5	23.5	9.75	1869	+38.0
42	Montes Gimenez, Mencia	1789	ESP	−5B	+86N	+95B	F	=20N	+39B	−15N	3.5	21.5	21.5	8.75	1975	+21.0
43	Ximenez Crespo, Inigo	1908	ESP	+94N	=22B	−51N	=55B	=72N	+41B	−20N	3.5	21.0	22.0	9.50	1850	-10.0
44	Soto Avalos, Paulo	1878	ESP	+98B	=90N	+30B	−9N	−22N	+72B	F	3.5	21.0	22.0	8.50	2092	+47.6
45	Used Zabalegui, Iosu	1769	ESP	−4N	+83B	−14N	−58B	+96N	+93B	=39N	3.5	20.0	21.0	5.75	1751	-8.4
46	Ros Parra, Jorge	1820	ESP	−9B	=74N	+103B	+66N	−51B	−59N	+81B	3.5	18.5	18.5	6.25	1869	+7.0
47	Diaz Etxaide, Jurgi	1949	ESP	+96N	−23B	=41N	F	+63B	−50N	+54B	3.5	17.5	17.5	8.75	1921	-2.0
48	Parayre Soguero, Jordi	1864	ESP	F	−17N	−77B	+98N	+82B	=29B	+55N	3.5	16.5	16.5	8.00	1839	-4.6
49	Villanueva Bustos, Leonardo Andres	1703	ESP	−50N	+102B	−25N	F	+101B	=32B	+56N	3.5	14.5	14.5	5.50	1879	+20.6
50	Paton Alvarez, Ivan	2215	ESP	+49B	+31N	−8B	F	−15N	+47B	−14N	3.0	26.0	28.0	11.00	2049	-46.0
51	Ostolazaga Barragan, Eneko	2107	ESP	+34N	−2B	+43B	F	+46N	−21N	F	3.0	24.5	24.5	11.00	2118	+2.6
52	Ibarra Whittecar, Siena	1813	ESP	−1N	+93B	−53N	+78B	+58N	−13B	−34N	3.0	22.5	23.5	6.00	1745	-22.8
53	San Martin Santamaria, Jose Manuel	0	ESP	−27N	+34B	+52B	−30N	−28B	−57N	+80B	3.0	22.0	24.0	9.00	1719	0.0
54	Moreno Lazarev, Haritz	1750	ESP	−3N	+91B	−18B	+93N	−14N	+83B	−47N	3.0	22.0	23.0	4.50	1788	+4.4
55	Reguillaga Otano, Juan	1735	ESP	−16B	+84N	=29B	=43N	−31B	+80N	−48B	3.0	21.5	23.5	7.75	1760	+3.4
56	Baroja Arrue, Miguel Maria	1895	ESP	+79B	−12N	+87B	=19N	−24B	=73N	−49B	3.0	21.5	23.5	7.50	1814	-14.8
57	Sanchez Huerta, Erlantz	1620	ESP	−11N	+79B	−26N	+96B	−39N	+53B	−32N	3.0	21.5	22.5	6.00	1591	-12.8
58	Nogaledo Garcia, Enzo	1556	ESP	−14N	+92B	−28B	+45N	−52B	=75N	=62B	3.0	21.0	22.5	7.75	1708	+38.4
59	Duhau-Marmon, Nicolas	1981	FRA	+80B	−10N	+76B	−21N	F	+46B	−30N	3.0	21.0	21.0	7.50	1993	+2.0
60	Munoz Ferreira, Adur	1604	ESP	−36B	+97N	+65B	−18N	+75B	−68N	−28B	3.0	20.5	21.5	6.50	1808	+48.4
61	Carretero Hernandez, Alejandro	1741	ESP	−10B	+80N	−68B	+64N	−67N	+86B	−25N	3.0	20.0	22.0	7.00	1750	-1.6
62	Castejon Lozano, Imanol	1728	ESP	−21N	=71B	+101N	−20B	+77B	−66N	=58N	3.0	20.0	20.5	5.50	1719	-12.0
63	Soria Ayarzaguena, Iker	1722	ESP	−23N	+96B	−39N	+94B	−47N	+64B	−26N	3.0	19.0	20.0	5.00	1680	-16.4
64	Franco Orbegozo, Alex	1491	ESP	−13N	−38B	+99N	−61B	+65B	−63N	+95B	3.0	18.5	19.5	5.00	1556	+10.0
65	Perez Sodupe, Cecilia	1875	ESP	+88N	−11B	−60N	−41B	−64N	+94B	+79N	3.0	18.5	19.5	5.00	943	-52.2
66	Banos Rosique, Rafael	1935	ESP	F	−35B	+81N	−46B	+84N	+62B	−22N	3.0	18.5	18.5	7.00	1878	-9.0
67	Manso Marquez, Felix	2075	ESP	+86B	F	−35N	F	+61B	+28N	−12B	3.0	17.5	17.5	9.00	2035	-1.8
68	Corral Sierra, Javier	1982	ESP	+100N	−7B	+61N	F	F	+60B	−11N	3.0	17.5	17.5	7.00	1955	-0.4
69	Fernandez Zubitur, Jokin	1998	ESP	+91N	−3B	F	+77N	F	=38B	=23N	3.0	16.5	16.5	7.25	1982	+0.8
70	Fragkos, Prokopios	0	CYP	−26N	−41B	+91N	−72B	+74N	−76B	+93N	3.0	16.0	17.0	5.00	1604	0.0
71	Etayo Delgado, Maider	1457	ESP	−29B	=62N	−34B	−79N	+100B	=101N	+78B	3.0	16.0	16.5	4.75	1639	+52.4
72	Arreche Amiano, Aimar	1624	ESP	−22N	+94B	−31B	+70N	=43B	−44N	−75B	2.5	21.0	22.0	5.75	1558	-10.4
73	Manas Garcia, Lander	1801	ESP	F	−30N	+74B	−22B	+79N	=56B	−40N	2.5	19.5	19.5	6.00	1844	+1.2
74	Sanchez Andres, Alejandro	1546	ESP	−20N	=46B	−73N	F	−70B	+88B	+97N	2.5	16.5	16.5	4.75	1583	+1.2
75	Daubas, Bernard	1880	FRA	+99N	F	−5B	F	−60N	=58B	+72N	2.5	15.0	15.0	5.00	1679	-21.8
76	Vegas Garcia, Daniel	1726	ESP	−6B	F	−59N	+80N	−26B	+70N	−31B	2.0	21.5	21.5	5.00	1642	-23.6
77	Garcia Gutierrez, Joel	1628	ESP	−12B	F	+48N	−69B	−62N	+98B	−41N	2.0	19.0	19.0	4.50	1627	-5.2
78	Juan Miguel, Camino	1586	ESP	−15N	+88B	−37B	−52N	−80B	+99N	−71N	2.0	18.5	19.5	3.00	915	-72.0
79	Losada Cabrera, David	0	ESP	−56N	−57N	F	+71B	−73B	+82N	−65B	2.0	16.5	16.5	5.00	1585	0.0
80	Garcia Puerta, Diego	1461	ESP	−59N	−61B	+88N	−76B	+78N	−55B	−53N	2.0	16.0	18.0	4.00	1490	+2.4
81	Garcia Lopez, Pedro 2015	1666	ESP	F	−89N	−66B	+91B	−29N	+84B	−46N	2.0	16.0	16.0	3.50	1653	-10.8
82	Lera Manterola, Gontzal Jokin	1613	ESP	−40B	+98N	F	−32B	−48N	−79B	+91N	2.0	15.5	15.5	2.50	1621	-2.0
83	Perez Urcelayeta, Oihan	1536	ESP	−18B	−45N	F	−85N	+92B	−54N	+101B	2.0	15.0	15.0	2.00	1518	-7.2
84	Almandoz Zapiain, Santiago	1410	ESP	−39N	−55B	+92N	F	−66B	−81N	+96B	2.0	14.0	14.0	2.50	1445	+0.8
85	Garcia Garcia, David 1980	1741	ESP	−7N	+100B	−13N	+83B	F	F	F	2.0	13.5	13.5	3.00	1788	+3.0
86	Arrondo Cipitria, Inaki	1512	ESP	−67N	−42B	−94N	+99B	+95N	−61N	F	2.0	12.5	12.5	2.00	1014	-18.4
87	Garcia Nunez, Helena	1608	ESP	−33N	+99B	−56N	+95B	−38N	F	F	2.0	12.5	12.5	2.00	1085	-22.0
88	Reyes Saavedra, Juan Manuel	0	ESP	−65B	−78N	−80B	+102N	−93B	−74N	+100B	2.0	11.5	11.5	1.00	1312	0.0
89	Najar Arrieta, Oriol	2035	ESP	F	+81B	+22N	F	F	F	F	2.0	9.5	9.5	6.50	2724	+31.6
90	De La Riva Aguado, Jorge	2170	ESP	+103N	=44B	F	F	=27N	F	F	2.0	7.5	7.5	3.75	1958	-12.8
91	Gonzalez Alfaro, Sergio	1509	ESP	−69B	−54N	−70B	−81N	+102B	=92N	−82B	1.5	14.5	14.5	0.75	935	-18.6
92	Rodriguez Jauregui, Inigo	0	ESP	−37B	−58N	−84B	F	−83N	=91B	+98N	1.5	13.0	13.0	1.75	1206	0.0
93	Diaz Elzo, Patxi	1549	ESP	−19B	−52N	F	−54B	+88N	−45N	−70B	1.0	19.0	19.0	2.00	1021	-14.4
94	Ibargoyen Neila, Odei	0	ESP	−43B	−72N	+86B	−63N	−34B	−65N	−99B	1.0	18.0	19.0	2.00	1430	0.0
95	Zhukovskaya, Aleksandra	0	FRA	F	−15B	−42N	−87N	−86B	+96B	−64N	1.0	16.5	16.5	1.00	1383	0.0
96	Irigaray Ferreira, Jon	1401	ESP	−47B	−63N	+97B	−57N	−45B	−95N	−84N	1.0	16.0	17.0	1.00	864	-40.8
97	Rocha Monteiro, Nuno Manuel	0	ESP	−32N	−60B	−96N	+100B	F	−34N	−74B	1.0	15.5	15.5	1.00	1308	0.0
98	Reyes Garcia, Juan Manuel	0	ESP	−44N	−82B	+100N	−48B	F	−77N	−92B	1.0	13.5	13.5	1.00	1455	0.0
99	FIDE 94740607	0	—	−75B	−87N	−64B	−86N	F	−78B	+94N	1.0	12.5	12.5	1.00	816	0.0
100	Roura Martin, Ana Maria	1489	ESP	−68B	−85N	−98B	−97N	−71N	+102B	−88N	1.0	12.0	12.0	0.00	896	-32.4
101	Mata Baldo, Erik	0	ESP	F	−28N	−62B	F	−49N	=71B	−83N	0.5	15.5	15.5	1.50	1289	-65.2
102	FIDE 553016122	0	—	−31B	−49N	F	−88B	−91N	−100N	F	0.0	14.0	14.0	0.00	858	0.0
103	Barros Roca, Inaki	1624	ESP	−90B	F	−46N	F	F	F	F	0.0	7.0	7.0	0.00	1122	-13.2
104	FIDE 553016130	0	—	−25N	F	F	F	F	F	F	0.0	7.0	7.0	0.00	1132	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Vernier Urtasun, JonESP
+76.4
4.0 pts · #52
2Etayo Delgado, MaiderESP
+52.4
3.0 pts · #48
3Merino Olaverri, JonESP
+51.6
5.0 pts · #13

Top rating losers

1Juan Miguel, CaminoESP
-72.0
2.0 pts · #101
2Mata Baldo, ErikESP
-65.2
0.5 pts · #91
3Perez Sodupe, CeciliaESP
-52.2
3.0 pts · #103

Biggest upsets

R5+384 Elo gap
Franco Orbegozo, Alex1491 beat Perez Sodupe, Cecilia1875
R3+329 Elo gap
Soto Avalos, Paulo1878 beat Odriozola Coscolin, Alex2207
R5+276 Elo gap
Munoz Ferreira, Adur1604 beat Daubas, Bernard1880