XI Abierto Internacional de Ajedrez Hotel CEMAR

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47 players participated in this 10-round tournament, held from 21 Jun 2025 to 25 Jun 2025 in Mondariz-Balneario (Pontevedra), Spain. 4 titled players. Top 10 Elo average was 2105, and top seed was Alain Prieto Aranguren (🇪🇸 ESP, FM, 2287).

Alain Prieto Aranguren (🇪🇸 ESP, FM, 2287) won with 8.0/10, ahead of Mauro Sanroman Costas (7.5) and Pedro Javier Gomez Fernandez (7.0). Prieto Aranguren won solo starting round 8.

The biggest upset came in round 1: Mateo Rey Barciela (1739) beat Juan Manuel Ruiz Abad (2249), a +510-point gap.

Location

🇪🇸Mondariz-Balneario (Pontevedra), Spain

Dates

21 Jun 2025 → 25 Jun 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 10 rounds

Top seed

🇪🇸FMAlain Prieto Aranguren2287

Avg top 10

2,105

Participants

Titled players · 4

FM×2

CM×2

Federations · 1 represented

🇪🇸Spain×46

Top 3

🥇
FMAlain Prieto Aranguren
🇪🇸ESP·2287
8.0pts·2301perf+6.4
🥈
CMMauro Sanroman Costas
🇪🇸ESP·2123
7.5pts·2196perf+23.4
🥉
Pedro Javier Gomez Fernandez
🇪🇸ESP·2088
7.0pts·2184perf+28.4

How it unfolded

Top 6 · 10 rounds

FM Alain Prieto Aranguren led from R4; +0.5-point edge over the runner-up.

Co-leaders

Prieto Aranguren8Sanroman Costas7.5Rey Malde7Gomez Fernandez7Outerelo Ucha7Revilla Rio6.5

R4–R10 · LEAD HELD

FM Alain Prieto Aranguren held the sole lead from R4 through R10 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

FM Alain Prieto Aranguren beat CM Mauro Sanroman Costas (White).

WIN STREAKS · 3 top finishers

FM Alain Prieto Aranguren 5 wins (R1–R5)CM Mauro Sanroman Costas 3+3 wins (R1–R3, R6–R8)FM Henrique Rey Malde 3+3 wins (R1–R3, R5–R7)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMAlain Prieto Aranguren	*	1	1	½
2CMMauro Sanroman Costas	0	*	1	½
3FMHenrique Rey Malde	0	0	*	1
4Pedro Javier Gomez Fernandez	½	½	0	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	R10	Pts	Bu C1	Bu	SB	Perf	Δ
1	Prieto Aranguren, AlainFM	2287	ESP	+33B	+19N	+5B	+4N	+2B	=3N	=7B	+6B	=8N	=10N	8.0	58.5	62.0	49.25	2301	+6.4
2	Sanroman Costas, MauroCM	2123	ESP	+23B	+16N	+6B	=10N	−1N	+18B	+8N	+4B	=3N	=5N	7.5	58.0	63.0	45.00	2196	+23.4
3	Gomez Fernandez, Pedro Javier	2088	ESP	+13B	+24N	=10N	+14B	+8N	=1B	−4B	+7N	=2B	=6N	7.0	58.5	63.5	42.50	2184	+28.4
4	Rey Malde, HenriqueFM	2129	ESP	+12N	+9B	+21N	−1B	+22N	+5B	+3N	−2N	−10B	+8B	7.0	58.5	63.5	42.00	2139	+8.6
5	Outerelo Ucha, ManuelCM	2121	ESP	+40N	+17B	−1N	+27B	=10B	−4N	+9N	+19B	+12N	=2B	7.0	55.5	57.5	35.75	2094	+1.2
6	Revilla Rio, Francisco	2036	ESP	+18N	+27B	−2N	+28B	−7B	+22N	+15B	−1N	+16B	=3B	6.5	54.5	59.0	33.50	2035	+5.2
7	Ruiz Abad, Juan Manuel	2249	ESP	−20N	+25N	=23B	+36B	+6N	+14B	=1N	−3B	=11N	+19B	6.5	53.0	55.5	34.00	2057	-36.0
8	Rodriguez Vieito, Alexandre	1934	ESP	+22B	=15N	+46B	+20N	−3B	+13N	−2B	+27N	=1B	−4N	6.0	55.0	56.0	27.75	1970	+21.2
9	Rivero Rodriguez, Hugo	1839	ESP	+38B	−4N	=13B	+23N	+11B	−10N	−5B	+31N	+15B	=29N	6.0	50.5	53.0	28.00	1922	+34.8
10	Longueira Alonso, Breixo	2149	ESP	+11B	+41N	=3B	=2B	=5N	+9B	F	F	+4N	=1B	6.0	50.5	50.5	35.75	2219	+35.6
11	Vazquez Fernandez, Brais	1735	ESP	−10N	+43B	+42N	=21B	−9N	+25B	F	+28N	=7B	+13N	6.0	42.0	42.0	24.25	1910	+66.8
12	Rey Jelusich, Moises	1714	ESP	−4B	+45N	−16B	+43N	+41B	−15N	+24B	+36N	−5B	+18N	6.0	41.0	42.5	17.50	1857	+36.0
13	Moreira Novo, Brais	1696	ESP	−3N	+37B	=9N	+17B	+21N	−8B	−19N	+26B	+27N	−11B	5.5	50.0	52.5	25.50	1877	+80.8
14	Dibuja Conde, Mateo	1920	ESP	=25B	+32N	+29B	−3N	+24B	−7N	−27B	=23N	+36B	=15N	5.5	46.5	49.0	23.25	1865	-26.4
15	Cid Barrio, Joel	1783	ESP	+44N	=8B	−20N	=19B	+46N	+12B	−6N	+18B	−9N	=14B	5.5	46.5	47.5	21.75	1829	+18.8
16	Delgado Lagares, Francisco Javi	1840	ESP	+39N	−2B	+12N	−22B	+40N	=28B	=18N	+35B	−6N	=17B	5.5	45.0	47.0	20.50	1789	-12.8
17	Moreno Barcenilla, Daniel	1816	ESP	+30B	−5N	−22B	−13N	+43B	+40N	=31B	=29N	+25B	=16N	5.5	43.0	44.5	20.00	1744	-16.4
18	Moreira Novo, Martin	1692	ESP	−6B	+30N	=24B	+26N	+20B	−2N	=16B	−15N	+21B	−12B	5.0	51.0	55.5	24.75	1829	+55.5
19	Souto Corredoura, Hugo	1897	ESP	+43N	−1B	F	=15N	+33B	=27N	+13B	−5N	+28B	−7N	5.0	46.5	46.5	20.00	1922	+8.0
20	Rey Barciela, Mateo	1739	ESP	+7B	=29N	+15B	−8B	−18N	−35N	+39B	=21N	=24B	=26N	5.0	45.5	47.5	23.75	1815	+30.4
21	Ruiz Ureta, Ernesto	1901	ESP	+34B	+47N	−4B	=11N	−13B	+23N	−28N	=20B	−18N	+36B	5.0	43.5	43.5	16.00	1695	-46.2
22	Torres Soto, Xacobe	1669	ESP	−8N	+44B	+17N	+16N	−4B	−6B	−36N	+41B	−26N	+34B	5.0	43.0	44.5	17.50	1811	+58.8
23	Bello Filgueira, Joaquin Antonio	1706	ESP	−2N	+39B	=7N	−9B	+45N	−21B	+42N	=14B	−29B	+31N	5.0	43.0	44.5	15.50	1777	+8.6
24	Enriquez Pardo, Manuel	1825	ESP	+37N	−3B	=18N	+31B	−14N	=36B	−12N	+40B	=20N	=32B	5.0	41.0	43.0	16.50	1715	-26.6
25	Alonso Lopez, Daniel	1624	ESP	=14N	−7B	−26B	+30N	+47B	−11N	=41N	+37B	−17N	+46B	5.0	38.5	38.5	11.75	1695	+8.2
26	Ruiz Martinez, Isidro	1911	ESP	−35N	=31B	+25N	−18B	−28N	+47N	+46B	−13N	+22B	=20B	5.0	38.0	38.0	15.50	1637	-61.8
27	Fernandez Cabrero, Fernando	1773	ESP	+42B	−6N	+47B	−5N	+29N	=19B	+14N	−8B	−13B	−28N	4.5	46.5	46.5	14.50	1768	-3.0
28	Pena Montenegro, Mateo	1745	ESP	F	F	+35N	−6N	+26B	=16N	+21B	−11B	−19N	+27B	4.5	40.5	40.5	20.25	1880	+58.0
29	Garcia de Eulate Latorre, Unai	1930	ESP	+31N	=20B	−14N	F	−27B	F	+32N	=17B	+23N	=9B	4.5	39.0	39.0	20.75	1800	-50.0
30	Garcia Demanuel, Gabriel	0	ESP	−17N	−18B	=43N	−25B	=37B	=34N	+44B	+46N	−32N	+39B	4.5	29.5	30.5	8.00	1468	0.0
31	Garcia de la Coba, Javier Ayoze	1659	ESP	−29B	=26N	+32B	−24N	=42B	+44N	=17N	−9B	=34N	−23B	4.0	39.5	41.0	12.75	1626	-8.4
32	Juarez Castro, Aitor	1604	ESP	F	−14B	−31N	F	+38N	F	−29B	+39N	+30B	=24N	3.5	28.0	28.0	11.50	1512	-16.0
33	Padilla Picuasi, Sandro Cesar	1761	ESP	−1N	+34B	F	F	−19N	=41B	F	F	+37N	+35B	3.5	23.5	23.5	9.50	1808	+4.6
34	Alameda Ibanez, Jose Antonio	1503	ESP	−21N	−33N	+38B	−35B	−39N	=30B	F	+42N	=31B	−22N	3.0	31.5	31.5	8.75	1353	-13.8
35	Leiros Fernandez, Gabriel	1605	ESP	+26B	−46N	−28B	+34N	F	+20B	F	−16N	F	−33N	3.0	27.5	27.5	13.00	1691	+14.2
36	Castro Barciela, Mauro	1704	ESP	F	F	F	−7N	+44B	=24N	+22B	−12B	−14N	−21N	2.5	34.5	34.5	9.00	1662	-16.4
37	Bazarra Fernandez, Alvaro	0	ESP	−24B	−13N	−45B	F	=30N	+38B	+47N	−25N	−33B	F	2.5	27.5	27.5	4.75	871	0.0
38	Barbero Capellan, David	0	ESP	−9N	−40B	−34N	F	−32B	−37N	+43B	=44N	=42B	=45N	2.5	23.5	23.5	4.00	1399	0.0
39	Argudin Fernandez, Maria	0	ESP	−16B	−23N	F	F	+34B	F	−20N	−32B	+45B	−30N	2.0	28.0	28.0	4.50	1515	0.0
40	Fernandez Alonso, Roberto	1706	ESP	−5B	+38N	F	F	−16B	−17B	+45N	−24N	F	F	2.0	28.0	28.0	4.00	1567	-36.4
41	Argudin Fernandez, Adrian	1876	ESP	+45B	−10B	F	F	−12N	=33N	=25B	−22N	F	F	2.0	27.0	27.0	5.75	1607	-82.0
42	Martin Del Fresno, Igor	0	ESP	−27N	F	−11B	F	=31N	F	−23B	−34B	=38N	+44N	2.0	26.5	26.5	4.75	1309	0.0
43	Montenegro Mendez, Ana Isabel	1453	ESP	−19B	−11N	=30B	−12B	−17N	F	−38N	+47B	F	F	1.5	29.5	29.5	2.25	979	-20.8
44	Madariaga Carasa, Zuhur	0	ESP	−15B	−22N	F	F	−36N	−31B	−30N	=38B	+47N	−42B	1.5	26.0	26.0	1.25	905	0.0
45	Menoyo Garcia, Javier	1449	ESP	−41N	−12B	+37N	F	−23B	F	−40B	F	−39N	=38B	1.5	22.0	22.0	3.75	944	-24.8
46	Koratty Saji, Julen	1693	ESP	F	+35B	−8N	F	−15B	F	−26N	−30B	F	−25N	1.0	31.0	31.0	3.00	1532	-40.0
47	FIDE 535019808	0	—	F	−21B	−27N	F	−25N	−26B	−37B	−43N	−44B	F	0.0	25.0	25.0	0.00	932	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Moreira Novo, BraisESP
+80.8
5.5 pts · #17
2Vazquez Fernandez, BraisESP
+66.8
6.0 pts · #12
3Torres Soto, XacobeESP
+58.8
5.0 pts · #22

Top rating losers

1Argudin Fernandez, AdrianESP
-82.0
2.0 pts · #33
2Ruiz Martinez, IsidroESP
-61.8
5.0 pts · #21
3Garcia de Eulate Latorre, UnaiESP
-50.0
4.5 pts · #19

Biggest upsets

R1+510 Elo gap
Rey Barciela, Mateo1739 beat Ruiz Abad, Juan Manuel2249
R1+306 Elo gap
Leiros Fernandez, Gabriel1605 beat Ruiz Martinez, Isidro1911
R4+219 Elo gap
Moreira Novo, Martin1692 beat Ruiz Martinez, Isidro1911