I Open Promesas del Ajedrez Sub-12

Open SwissStandard

53 players participated in this 6-round tournament, held from 13 Jun 2025 to 15 Jun 2025 in Pamplona, Spain. Top 10 Elo average was 1835, and top seed was Jairo Liern Matesanz (🇪🇸 ESP, 1943).

Julen Jaso Escudero (🇪🇸 ESP, 1883) won with 5.5/6, ahead of Rodrigo Veiga Macias (5.0) and Marko Garcia Tanjala (5.0). Jaso Escudero won solo starting round 5.

The biggest upset came in round 2: Marco Garcia Martin (1582) beat Marko Garcia Tanjala (1872), a +290-point gap.

Location

🇪🇸Pamplona, Spain

Dates

13 Jun 2025 → 15 Jun 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 6 rounds

Top seed

🇪🇸Jairo Liern Matesanz1943

Avg top 10

1,835

Participants

Federations · 1 represented

🇪🇸Spain×50

Top 3

🥇
Julen Jaso Escudero
🇪🇸ESP·1883
5.5pts·2061perf+36.0
🥈
Rodrigo Veiga Macias
🇪🇸ESP·1797
5.0pts·1895perf+26.4
🥉
Marko Garcia Tanjala
🇪🇸ESP·1872
5.0pts·1895perf+12.4

How it unfolded

Top 6 · 6 rounds

Julen Jaso Escudero 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

Jaso Escudero5.5Garcia Tanjala5Veiga Macias5Liern Matesanz4.5Otazu Casanes4.5Rodriguez Alvarez4.5

R5–R6 · LEAD HELD

Julen Jaso Escudero held the sole lead from R5 through R6 without losing it.

WIN STREAKS · 3 top finishers

Julen Jaso Escudero 5 wins (R1–R5)Marko Garcia Tanjala 4 wins (R3–R6)Rodrigo Veiga Macias 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Julen Jaso Escudero	*	—	1	—
2Marko Garcia Tanjala	—	*	—	1
3Rodrigo Veiga Macias	0	—	*	—
4Jairo Liern Matesanz	—	0	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Jaso Escudero, Julen	1883	ESP	+45N	+20B	+15N	+2B	+7N	=4B	5.5	20.0	22.0	19.75	2061	+36.0
2	Veiga Macias, Rodrigo	1797	ESP	+48B	+33N	+19B	−1N	+12B	+7B	5.0	19.0	20.0	14.50	1895	+26.4
3	Garcia Tanjala, Marko	1872	ESP	+43B	−19N	+27B	+20N	+5B	+11N	5.0	17.5	19.5	16.50	1895	+12.4
4	Rodriguez Alvarez, Hugo	1654	ESP	=24B	+51N	+9B	=6N	+16B	=1N	4.5	20.5	20.5	14.00	1933	+57.2
5	Liern Matesanz, Jairo	1943	ESP	+40N	=8B	+25N	+10B	−3N	+15B	4.5	19.5	21.5	14.50	1869	-13.2
6	Otazu Casanes, Abel	1865	ESP	=22N	+35B	+8N	=4B	=15N	+26B	4.5	18.0	20.5	15.00	1733	-26.4
7	Quiros Florea, Rafael-Santiago	1800	ESP	+34N	+13B	+17N	+11B	−1B	−2N	4.0	22.0	24.5	14.00	1781	-2.0
8	Diaz-Oliver Rodriguez-Escalona, Pablo	1570	ESP	+32B	=5N	−6B	+31N	+18B	=9N	4.0	19.0	21.5	12.75	1720	+26.0
9	Garcia Nunez, Helena	1552	ESP	+38N	=10B	−4N	+21B	+25N	=8B	4.0	18.5	20.5	12.00	1663	+23.2
10	Mendoza Barcia, Mateo	1801	ESP	+27B	=9N	+31B	−5N	=35N	+20B	4.0	17.0	19.5	11.75	1691	-23.6
11	Pisador Rodriguez, Oliver	1662	ESP	+50N	+37B	+21N	−7N	+19B	−3B	4.0	17.0	18.0	9.00	1626	-6.0
12	Gomez Llorente, Jon	1563	ESP	−37N	+44B	+23N	+34B	−2N	+21B	4.0	15.5	17.5	10.50	1728	+34.0
13	Calvo Perez, Alvaro	1541	ESP	+53B	−7N	+32B	−16N	+39B	+19N	4.0	15.0	15.0	7.50	1556	+1.6
14	Villa Peiro, Joan	1747	ESP	+23N	−21B	−22N	+44B	+34N	+35B	4.0	14.0	16.0	10.00	1719	-4.4
15	Mayordomo Lopez, Ekaitz	1644	ESP	+47N	+39B	−1B	+29N	=6B	−5N	3.5	19.5	20.5	8.25	1720	+11.6
16	Saez de Adana Saez, Manuel	1661	ESP	F	=24N	+33B	+13B	−4N	+22B	3.5	17.0	17.0	11.00	1688	+4.4
17	Abad Miranda, Carmen	1592	ESP	+41B	+42N	−7B	=18N	−26B	+32N	3.5	15.0	17.0	8.25	1468	-13.2
18	Alfaro Aldunate, Lucia	1522	ESP	−30N	+47B	+38N	=17B	−8N	+36B	3.5	15.0	16.0	7.25	1614	+14.4
19	Garcia Martin, Marco	1582	ESP	+26N	+3B	−2N	+22B	−11N	−13B	3.0	21.0	24.0	11.00	1601	+1.6
20	Escolano Bobkov, Alex	1553	ESP	+52B	−1N	+24B	−3B	+23N	−10N	3.0	20.5	20.5	6.00	1556	-3.6
21	Garde Gonzalez, Daniel	0	ESP	+28B	+14N	−11B	−9N	+29B	−12N	3.0	19.0	22.0	10.00	1608	0.0
22	Molina Mora, Aitor	1494	ESP	=6B	=49N	+14B	−19N	+28B	−16N	3.0	18.0	19.0	9.75	1652	+46.4
23	Roncero Robledo, Odei	1443	ESP	−14B	+28N	−12B	+41N	−20B	+39N	3.0	16.0	18.0	7.00	1419	-5.2
24	De Lera Fernandez, Ruben	0	ESP	=4N	=16B	−20N	−36B	+37N	+40B	3.0	15.5	17.5	8.00	1553	0.0
25	Ruiz Calvo, Lorien	1626	ESP	=31B	+46N	−5B	+43N	−9B	=42N	3.0	15.0	17.0	6.25	1540	-16.0
26	Huarte Klimov, Ivan	0	ESP	−19B	F	+39N	+40B	+17N	−6N	3.0	15.0	15.0	7.50	1639	0.0
27	Martinez Garcia, Adriana	1485	ESP	−10N	+52B	−3N	−38B	+47N	+41B	3.0	14.0	14.0	3.00	1037	-9.2
28	Used Zabalegui, Iosu	1593	ESP	−21N	−23B	+47N	+37B	−22N	+31N	3.0	13.5	14.5	5.50	667	-53.6
29	Mc Dermott Perez-Arados, Ian	1537	ESP	−39N	+50B	+37N	−15B	−21N	+38B	3.0	12.5	13.5	5.00	843	-14.4
30	Merino Olaverri, Jon	1896	ESP	+18B	F	F	F	+38N	+44B	3.0	7.5	7.5	7.50	2310	+6.8
31	Esain Larumbe, Enzo	0	ESP	=25N	+36B	−10N	−8B	+49N	−28B	2.5	16.5	17.5	5.00	1576	0.0
32	Iglesias Medeiros, David	0	ESP	−8N	+45B	−13N	+51B	=36N	−17B	2.5	16.0	16.0	3.25	1442	0.0
33	Alegre Braco, Izan	0	ESP	+36N	−2B	−16N	=49B	=40N	=34B	2.5	15.5	16.5	5.25	1551	0.0
34	Cordero Cacho, Ariana	1464	ESP	−7B	+53N	+49B	−12N	−14B	=33N	2.5	15.5	15.5	2.25	1450	-5.6
35	Irisarri Gueracena, Hegoi	1552	ESP	F	−6N	+51B	+42N	=10B	−14N	2.5	14.5	14.5	4.00	1531	-4.0
36	Permanyer Dvoretskiy, Victor	1744	ESP	−33B	−31N	+50B	+24N	=32B	−18N	2.5	14.0	15.0	5.25	722	-31.2
37	Lamborena Valderrama, Inigo	0	ESP	+12B	−11N	−29B	−28N	−24B	+48N	2.0	17.0	18.0	5.00	1488	0.0
38	Munoz Bobo, Ignacio	0	ESP	−9B	+48N	−18B	+27N	−30B	−29N	2.0	16.5	17.5	4.00	1450	0.0
39	Salinas Fernandez, Jorge	0	ESP	+29B	−15N	−26B	+48N	−13N	−23B	2.0	16.5	17.5	4.00	1451	0.0
40	Berciano Fernandez de Betono, Oihan	1527	ESP	−5B	+41N	=42B	−26N	=33B	−24N	2.0	15.0	17.0	4.25	1116	-3.2
41	Goya Suescun, Unax	0	ESP	−17N	−40B	+45N	−23B	+48B	−27N	2.0	13.5	14.5	3.00	1375	0.0
42	Serrano Mugueta, Diego	0	ESP	F	−17B	=40N	−35B	+45N	=25B	2.0	13.0	13.0	4.50	1489	0.0
43	Felipe Molina, Lucas	1502	ESP	−3N	F	+46B	−25B	−44N	+49B	2.0	13.0	13.0	3.00	1408	-22.8
44	Iraizoz Moreno, Sayoa	1437	ESP	F	−12N	+53B	−14N	+43B	−30N	2.0	13.0	13.0	2.00	1468	+1.2
45	Grajales Gorostiaga, Xabier	1513	ESP	−1B	−32N	−41B	+52N	−42B	+47N	2.0	13.0	13.0	1.00	1083	-4.0
46	FIDE 523002921	0	—	F	−25B	−43N	−50N	+52B	+51N	2.0	6.0	6.0	0.00	764	0.0
47	FIDE 523001143	0	—	−15B	−18N	−28B	+53N	−27B	−45B	1.0	15.0	15.0	0.00	751	0.0
48	Garcia Zemler, Olga	1453	ESP	−2N	−38B	+52N	−39B	−41N	−37B	1.0	13.0	13.0	0.00	997	-4.4
49	Irisarri Gueracena, Ibai	1679	ESP	F	=22B	−34N	=33N	−31B	−43N	1.0	12.5	12.5	2.75	1213	-37.2
50	Cuadro Perez, Marta	0	ESP	−11B	−29N	−36N	+46B	F	F	1.0	11.5	11.5	2.00	847	0.0
51	FIDE 94747539	0	—	F	−4B	−35N	−32N	F	−46B	0.0	11.5	11.5	0.00	807	0.0
52	Madariaga Carasa, Zuhur	0	ESP	−20N	−27N	−48B	−45B	−46N	F	0.0	11.0	11.0	0.00	701	0.0
53	Ruiz de Larramendi Piqueras, IbaI	0	ESP	−13N	−34B	−44N	−47B	F	F	0.0	9.5	9.5	0.00	680	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Rodriguez Alvarez, HugoESP
+57.2
4.5 pts · #8
2Molina Mora, AitorESP
+46.4
3.0 pts · #11
3Jaso Escudero, JulenESP
+36.0
5.5 pts · #1

Top rating losers

1Used Zabalegui, IosuESP
-53.6
3.0 pts · #46
2Irisarri Gueracena, IbaiESP
-37.2
1.0 pts · #38
3Permanyer Dvoretskiy, VictorESP
-31.2
2.5 pts · #45

Biggest upsets

R2+290 Elo gap
Garcia Martin, Marco1582 beat Garcia Tanjala, Marko1872
R3+253 Elo gap
Molina Mora, Aitor1494 beat Villa Peiro, Joan1747
R6+222 Elo gap
Alfaro Aldunate, Lucia1522 beat Permanyer Dvoretskiy, Victor1744