IV Open Tres Cantos Sub1800

Open SwissStandard

50 players participated in this 8-round tournament, held from 23 May 2026 to 25 May 2026 in Tres Cantos (Madrid), Spain. 3 federations represented. Top 10 Elo average was 1750, and top seed was Diego Iglesias Febrero (🇪🇸 ESP, 1777).

Pablo Marcilla Leon (🇪🇸 ESP, 1734) won with 6.5/8, ahead of Lucas Agraz Fernandez-Truchaud (6.0) and Jesus Sanchez Garcia (5.5). Marcilla Leon broke clear in the final round.

The biggest upset came in round 7: Nicolas Gutierrez Almagro (1465) beat Markel Atxitia Gonzalez (1768), a +303-point gap.

Location

🇪🇸Tres Cantos (Madrid), Spain

Dates

23 May 2026 → 25 May 2026

Time control

Standard: 45 minutes with 30 seconds increment from move 1

System

Swiss · 8 rounds

Top seed

🇪🇸Diego Iglesias Febrero1777

Avg top 10

1,750

Participants

Federations · 3 represented

🇪🇸Spain×45

FIDE (no federation)×1

🇵🇪Peru×1

Top 3

🥇
Pablo Marcilla Leon
🇪🇸ESP·1734
6.5pts·1938perf+80.8
🥈
Lucas Agraz Fernandez-Truchaud
🇪🇸ESP·1737
6.0pts·1844perf+43.6
🥉
Jesus Sanchez Garcia
🇪🇸ESP·1695
5.5pts·1753perf+13.8

How it unfolded

Top 6 · 8 rounds

Pablo Marcilla Leon led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Marcilla Leon6.5Agraz Fernandez-Truchaud6Iglesias Febrero5.5Sanchez Garcia5.5Aquilino Rodriguez5.5Moreno Jimenez5

R5–R8 · LEAD HELD

Pablo Marcilla Leon held the sole lead from R5 through R8 without losing it.

WIN STREAKS · 2 top finishers

Pablo Marcilla Leon 3 wins (R1–R3)Diego Iglesias Febrero 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Pablo Marcilla Leon	*	—	1	½
2Lucas Agraz Fernandez-Truchaud	—	*	½	—
3Diego Iglesias Febrero	0	½	*	—
4Jesus Sanchez Garcia	½	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	Pts	Bu C1	Bu	SB	Perf	Δ
1	Marcilla Leon, Pablo	1734	ESP	+19B	+44N	+41B	=12B	+4N	=3N	=10B	+9N	6.5	31.5	33.5	26.00	1938	+80.8
2	Agraz Fernandez-Truchaud, Lucas	1737	ESP	+26N	+8B	=6N	=14B	=12N	+13B	+5N	=4B	6.0	34.5	37.5	27.75	1844	+43.6
3	Sanchez Garcia, Jesus	1695	ESP	+47N	+18B	−12N	+25B	+6N	=1B	−9B	+13N	5.5	32.5	33.5	20.75	1753	+13.8
4	Iglesias Febrero, Diego	1777	ESP	−27B	+20B	+23N	+44N	−1B	+15N	+12B	=2N	5.5	31.5	33.5	21.00	1761	-2.8
5	Aquilino Rodriguez, Virgilio	1665	ESP	+25N	=21B	−14N	+43B	+30N	+12B	−2B	+28N	5.5	27.5	29.5	17.25	1768	+21.0
6	Ganotskii, Aleksandr	1638	ESP	+48B	+28N	=2B	=11N	−3B	+7N	+14B	−10N	5.0	34.0	34.5	18.50	1767	+50.4
7	Gamarra Rodriguez, Victor Manuel	1658	ESP	+45N	−9N	+15B	+18B	−10N	−6B	+25N	+17B	5.0	30.5	32.5	17.50	1688	+6.4
8	Manas Carrete, Miguel Angel	1653	ESP	+32B	−2N	+19B	−13N	+38B	+20N	−11B	+31N	5.0	29.0	31.5	16.00	1624	-4.0
9	Sanchez Redondo, Alvaro	1764	ESP	+46N	+7B	−37N	F	+22B	+14B	+3N	−1B	5.0	29.0	29.0	19.50	1796	+14.4
10	Moreno Jimenez, Alejandro 2015	1770	ESP	F	+13N	=27B	+41N	+7B	F	=1N	+6B	5.0	26.0	26.0	21.25	1904	+35.6
11	Paniagua Quinones, Carlos	1769	ESP	=20N	+35B	+21N	=6B	F	F	+8N	+23B	5.0	23.5	23.5	19.25	1842	+9.8
12	Gonzalez Dominguez, Carlos	1744	ESP	+15B	+16N	+3B	=1N	=2B	−5N	−4N	=21B	4.5	38.0	41.5	22.50	1721	-4.2
13	Garcia Winkler, Alejandro	1559	ESP	+30N	−10B	+17N	+8B	=14N	−2N	+22B	−3B	4.5	33.5	36.5	17.75	1728	+72.8
14	Enriquez Pastor, Jorge	1660	ESP	+50B	=27N	+5B	=2N	=13B	−9N	−6N	+29B	4.5	32.0	32.0	15.25	1648	-2.2
15	Vallespin Morales, Antonio	1550	ESP	−12N	+42B	−7N	+39B	+25N	−4B	=26N	+24B	4.5	27.0	29.0	12.50	1528	-4.8
16	Garcia Gordillo, Hugo	1645	ESP	+42N	−12B	−25N	−21B	+49N	=26B	+41N	+18B	4.5	22.0	22.0	9.50	1531	-37.6
17	Serrano Gallen, Rodrigo	1711	ESP	+31B	−41N	−13B	+34N	−19B	+35N	+20B	−7N	4.0	26.0	28.0	12.50	1505	-38.6
18	Rodriguez Vaca, Jonathan Roberto	1625	ESP	+43B	−3N	+31B	−7N	−45B	+38N	+40B	−16N	4.0	25.0	27.0	10.00	1575	-15.2
19	Paez Munoz, Daniel	1495	ESP	−1N	+33B	−8N	+49B	+17N	=28B	=21N	F	4.0	25.0	25.0	10.25	1617	+30.0
20	Goday Rivas, Alvaro	1571	ESP	=11B	−4N	+38B	+32N	=28N	−8B	−17N	=39B	3.5	28.0	30.5	10.75	1537	-15.2
21	Solera Diaz, Manuel	1619	ESP	+36B	=5N	−11B	+16N	F	F	=19B	=12N	3.5	26.5	26.5	14.50	1664	+12.0
22	Ruiz Adan, Jose Angel	1487	ESP	−28B	+48N	F	+26B	−9N	+24B	−13N	=27N	3.5	22.5	22.5	8.50	1479	-2.2
23	Paule San Isidoro, Alex	1418	ESP	F	F	−4B	+29N	+41B	=30N	+27B	−11N	3.5	21.5	21.5	9.50	1742	+95.6
24	FIDE 553073932	0	—	−29B	−38N	=48B	+42N	+50B	−22N	+34B	−15N	3.5	19.0	19.0	5.25	715	0.0
25	Giganto Lopez, Maria	1405	ESP	−5B	+36N	+16B	−3N	−15B	+29N	−7B	−32N	3.0	31.0	34.0	10.50	1511	+28.4
26	Ganotskii, Viacheslav	1514	ESP	−2B	=32N	+46B	−22N	=40B	=16N	=15B	−35N	3.0	27.0	28.0	8.25	1477	-16.0
27	Xu, Leo	1572	ESP	+4N	=14B	=10N	=30B	F	F	−23N	=22B	3.0	25.0	25.0	13.50	1647	+22.4
28	Garcia Garcia, Enrique 1964	1729	ESP	+22N	−6B	+39N	F	=20B	=19N	F	−5B	3.0	24.0	24.0	9.75	1545	-27.6
29	Castrillo Mazagatos, Javier	1600	ESP	+24N	−37B	−30N	−23B	+33N	−25B	+38N	−14N	3.0	23.5	26.0	9.00	1284	-92.8
30	Atxitia Gonzalez, Markel	1768	ESP	−13B	+50N	+29B	=27N	−5B	=23B	−31N	F	3.0	22.5	22.5	6.25	1422	-105.2
31	Gutierrez Almagro, Nicolas	1465	ESP	−17N	+34B	−18N	F	F	+41N	+30B	−8B	3.0	21.0	21.0	8.00	1604	+33.2
32	Garcia Lorenzo, Alex	0	ESP	−8N	=26B	+35N	−20B	F	F	=39N	+25B	3.0	20.0	20.0	8.75	1511	0.0
33	Martin Montero, Nathan	0	ESP	−44B	−19N	+36B	−38N	−29B	+47B	+48N	−40N	3.0	18.0	18.5	4.50	1250	0.0
34	Racionero Rodrigo, Javier	0	ESP	−41B	−31N	+47N	−17B	=39N	+49B	−24N	=42B	3.0	18.0	18.0	3.25	1378	0.0
35	Ismatov, Aleksandr	1512	ESP	F	−11N	−32B	+48N	F	−17B	+43N	+26B	3.0	17.5	17.5	5.50	1540	+3.2
36	Tenani Abdunazarova, Diana	0	ESP	−21N	−25B	−33N	+46N	=42B	−39B	+49N	=38B	3.0	17.5	17.5	3.25	1334	0.0
37	Vargas Agustin, Antony Josafat	1670	PER	+38B	+29N	+9B	F	F	F	F	F	3.0	10.5	10.5	10.50	2395	+48.8
38	Lozano Valverde, Eduardo	1421	ESP	−37N	+24B	−20N	+33B	−8N	−18B	−29B	=36N	2.5	25.0	28.0	8.00	824	-24.2
39	Palta Grossu, Leonardo Daniel	1412	ESP	F	F	−28B	−15N	=34B	+36N	=32B	=20N	2.5	20.0	20.0	7.75	1344	-9.2
40	Bodega Hernando, Jorge	1563	ESP	F	F	F	F	=26N	+43B	−18N	+33B	2.5	12.0	12.0	6.50	1377	-9.6
41	Pardo Caballos, Manuel	1622	FID	+34N	+17B	−1N	−10B	−23N	−31B	−16B	F	2.0	29.5	29.5	7.00	1351	-78.8
42	Jimenez Claudin, Rafael	0	ESP	−16B	−15N	F	−24B	=36N	+46B	F	=34N	2.0	19.5	19.5	4.00	1460	0.0
43	Nuno Hidalgo, Adrian	0	ESP	−18N	+47B	F	−5N	F	−40N	−35B	+48B	2.0	16.5	16.5	1.50	1318	0.0
44	Diaz Garcia, Oscar	1632	ESP	+33N	−1B	+49N	−4B	F	F	F	F	2.0	15.0	15.0	3.00	956	-26.8
45	Fuliotto, Marco	0	ESP	−7B	+46B	F	F	+18N	F	F	F	2.0	10.0	10.0	5.00	1634	0.0
46	Munoz Garcia, Fernando	1559	ESP	−9B	−45N	−26N	−36B	+48B	−42N	F	F	1.0	15.5	15.5	0.50	839	-32.0
47	Gutierrez Almagro, Gonzalo	1426	ESP	−3B	−43N	−34B	F	F	−33N	F	+49B	1.0	13.5	13.5	0.00	895	-6.8
48	Martin Montero, Alan	0	ESP	−6N	−22B	=24N	−35B	−46N	F	−33B	−43N	0.5	21.0	21.0	1.75	749	0.0
49	FIDE 523096900	0	—	F	F	−44B	−19N	−16B	−34N	−36B	−47N	0.0	17.5	17.5	0.00	750	0.0
50	FIDE 535086980	0	—	−14N	−30B	F	F	−24N	F	F	F	0.0	11.0	11.0	0.00	914	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Paule San Isidoro, AlexESP
+95.6
3.5 pts · #14
2Marcilla Leon, PabloESP
+80.8
6.5 pts · #1
3Garcia Winkler, AlejandroESP
+72.8
4.5 pts · #10

Top rating losers

1Atxitia Gonzalez, MarkelESP
-105.2
3.0 pts · #29
2Castrillo Mazagatos, JavierESP
-92.8
3.0 pts · #36
3Pardo Caballos, ManuelFID
-78.8
2.0 pts · #40

Biggest upsets

R7+303 Elo gap
Gutierrez Almagro, Nicolas1465 beat Atxitia Gonzalez, Markel1768
R3+240 Elo gap
Giganto Lopez, Maria1405 beat Garcia Gordillo, Hugo1645
R5+216 Elo gap
Paez Munoz, Daniel1495 beat Serrano Gallen, Rodrigo1711