Abierto Nacional "Viva La Paz en el Bicentenario de Bolivia"

Open SwissStandard

47 players participated in this 7-round tournament, held from 17 Jul 2025 to 20 Jul 2025 in La Paz, Bolivia. 4 titled players. Top 10 Elo average was 1971, and top seed was Jonathan I. Montevilla Cahuasa (🇧🇴 BOL, CM, 2243).

Jonathan I. Montevilla Cahuasa (🇧🇴 BOL, CM, 2243) won with 6.5/7, ahead of Maveric Mayta Aiza (6.0) and Mario Medrano (6.0). Montevilla Cahuasa won solo starting round 6.

The biggest upset came in round 2: Oliver Albert Rodriguez Lujan (1561) beat Guy Bautista (2224), a +663-point gap.

Location

🇧🇴La Paz, Bolivia

Dates

17 Jul 2025 → 20 Jul 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 7 rounds

Top seed

🇧🇴CMJonathan I. Montevilla Cahuasa2243

Avg top 10

1,971

Participants

Titled players · 4

CM×2

WCM×2

Federations · 1 represented

🇧🇴Bolivia×42

Top 3

🥇
CMJonathan I. Montevilla Cahuasa
🇧🇴BOL·2243
6.5pts·2316perf+16.0
🥈
CMMaveric Mayta Aiza
🇧🇴BOL·2180
6.0pts·2214perf+13.7
🥉
Mario Medrano
🇧🇴BOL·2029
6.0pts·2114perf+14.2

How it unfolded

Top 6 · 7 rounds

CM Jonathan I. Montevilla Cahuasa led from R6; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R6.

Co-leaders

Montevilla Cahuasa6.5Mayta Aiza6Medrano6Montevilla C.5Mamani Apaza5Villca Pereira5

R6–R7 · LEAD HELD

CM Jonathan I. Montevilla Cahuasa held the sole lead from R6 through R7 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

CM Jonathan I. Montevilla Cahuasa drew with CM Maveric Mayta Aiza (White).

WIN STREAKS · 3 top finishers

CM Jonathan I. Montevilla Cahuasa 4 wins (R1–R4)CM Maveric Mayta Aiza 4 wins (R1–R4)Mario Medrano 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1CMJonathan I. Montevilla Cahuasa	*	½	—	1
2CMMaveric Mayta Aiza	½	*	½	—
3Mario Medrano	—	½	*	1
4Elias Alejandro Montevilla C.	0	—	0	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Montevilla Cahuasa, Jonathan I.CM	2243	BOL	+25B	+17N	+6B	+20N	=2B	+4N	+5B	6.5	28.5	31.5	28.50	2316	+16.0
2	Mayta Aiza, MavericCM	2180	BOL	+31N	+10B	+13N	+4B	=1N	=3B	+11N	6.0	30.5	33.5	27.25	2214	+13.7
3	Medrano, Mario	2029	BOL	+15B	+21N	+5B	+9N	=20B	=2N	+6B	6.0	28.0	31.5	26.75	2114	+14.2
4	Villca Pereira, Rafael	1850	BOL	+14N	+44B	+12N	−2N	+8B	−1B	+13N	5.0	30.0	31.0	18.50	1982	+42.0
5	Mamani Apaza, Vladimir Nestor	1795	BOL	+30N	+35B	−3N	+12B	+27N	+18B	−1N	5.0	27.0	29.0	16.50	1901	+20.2
6	Montevilla C., Elias Alejandro	1822	BOL	+36N	+29B	−1N	+35B	+10N	+13B	−3N	5.0	26.0	28.0	15.50	1953	+24.2
7	Rodriguez Barrientos, Johan Raziel	1684	BOL	+42B	−20N	+33B	=22N	=28B	+15N	+21B	5.0	20.5	21.5	14.75	1724	+14.4
8	Navarro Gorena, Angel	1744	BOL	+40B	+47N	−20B	+25N	−4N	+27B	+16N	5.0	20.0	20.0	11.50	1803	+8.8
9	Mamani Lima, Jose Andres	1661	BOL	+37N	+16B	+11N	−3B	−13N	+14B	=10N	4.5	27.0	29.0	16.75	1853	+59.6
10	Quisbert Quispe, Leonidaz Kalel	1730	BOL	+45B	−2N	+15B	+31N	−6B	+28N	=9B	4.5	25.5	25.5	12.25	1761	+8.4
11	Ramallo Aguilar, Ariadne Ricela	1808	BOL	+28B	=26N	−9B	+19N	+22B	+20N	−2B	4.5	24.5	27.5	15.50	1787	-1.2
12	Cachi Sirpa, Bryan Fernando	1594	BOL	+41N	+18B	−4B	−5N	+23B	=21N	+20B	4.5	24.5	25.5	13.75	1801	+26.2
13	Gareca Ordonez, Carla AngelicaWCM	1844	BOL	+22B	+32N	−2B	+26N	+9B	−6N	−4B	4.0	27.0	30.0	14.00	1804	-6.0
14	Guzman Heredia, Simon	1512	BOL	−4B	+34N	−21B	+24N	+32B	−9N	+25B	4.0	22.5	25.0	12.00	1613	+11.8
15	Rodriguez Lujan, Oliver Albert	1561	BOL	−3N	+38B	−10N	+43B	+35N	−7B	+28N	4.0	22.5	23.5	8.00	1740	+48.0
16	Rocha, Ignacio	1852	BOL	+33B	−9N	−26B	+34N	+31B	+25N	−8B	4.0	21.5	24.0	11.50	1616	-34.6
17	Coro, SoledadWCM	1735	BOL	+38N	−1B	−27N	F	+29B	+37B	+33N	4.0	19.5	19.5	10.00	1860	+13.0
18	Achocalla Huaipara, Pavel Andres	1811	BOL	F	−12N	+45B	+29B	+26N	−5N	+22B	4.0	19.0	19.0	9.50	1701	-12.8
19	Yupanqui Zapata, Rodrigo	1491	BOL	F	−25N	+23B	−11B	+41N	+26B	+32N	4.0	18.0	18.0	10.50	1665	+34.0
20	Cazorla Herrera, Rudy Daniel	1853	BOL	+27N	+7B	+8N	−1B	=3N	−11B	−12N	3.5	31.5	34.5	16.00	1803	-18.4
21	Alanoca Torrez, Jefferson	1693	BOL	+46N	−3B	+14N	−27B	+36N	=12B	−7N	3.5	24.5	24.5	8.25	1580	-40.4
22	Escalier Rojas, Bruno Andres	1490	BOL	−13N	+37B	+44N	=7B	−11N	+35B	−18N	3.5	21.5	22.5	7.50	1680	+50.8
23	Paco Mamani, Eliezer Jesus	0	BOL	−35N	+30B	−19N	+40B	−12N	+36B	=26N	3.5	18.5	20.0	8.00	1484	0.0
24	Loza Ponce, Miguel Eleazar	0	BOL	−29N	−36B	+38N	−14B	=30N	+40B	+34B	3.5	16.5	18.0	7.50	1505	0.0
25	Nava Pinedo, Noe Bethuel	1576	BOL	−1N	+19B	+40N	−8B	+37N	−16B	−14N	3.0	25.5	27.0	7.50	1477	-29.2
26	Quispe Mamani, Nikaela Nazaret	1631	BOL	+39N	=11B	+16N	−13B	−18B	−19N	=23B	3.0	24.0	26.0	10.00	1613	-3.2
27	Macuchapi Mamani, Jehu Benjamin	1524	BOL	−20B	+42N	+17B	+21N	−5B	−8N	F	3.0	23.0	24.0	8.50	1692	+39.2
28	Yujra Condori, Miguel Angel	1480	BOL	−11N	+43B	=29N	+36B	=7N	−10B	−15B	3.0	23.0	24.0	7.00	1524	+10.0
29	Arteaga Herbas, Thiago Andre	1635	BOL	+24B	−6N	=28B	−18N	−17N	=30B	+46N	3.0	22.5	22.5	6.50	1414	-54.0
30	Quispe Mamani, Katerin Gabriela	0	BOL	−5B	−23N	−34B	+45N	=24B	=29N	+41N	3.0	18.5	18.5	4.25	1521	+7.2
31	Huanto Aruquipa, Efren	1566	BOL	−2B	+45N	+47B	−10B	−16N	−38N	+37B	3.0	18.5	18.5	2.00	1082	-24.4
32	Gemio Yujra, Daniel Donato	1643	BOL	+43N	−13B	−36N	+39B	−14N	+41B	−19B	3.0	17.0	18.0	4.00	784	-93.2
33	Montevilla Cahuasa, Amanda	1515	BOL	−16N	+46B	−7N	−41B	+39N	+43B	−17B	3.0	17.0	17.0	3.00	956	-24.8
34	Herrera Gomez, Jons Avan	0	BOL	−44N	−14B	+30N	−16B	=40N	+42B	−24N	2.5	17.0	18.0	4.75	1416	0.0
35	Maldonado Caceres, Ronaldo	1625	BOL	+23B	−5N	+41B	−6N	−15B	−22N	F	2.0	22.0	22.0	4.50	867	-36.0
36	Murga Paz, Diego Emanuel	1482	BOL	−6B	+24N	+32B	−28N	−21B	−23N	F	2.0	21.5	22.5	6.50	1467	-5.6
37	Churata Gutierrez, Uriel	0	BOL	−9B	−22N	+42B	+47N	−25B	−17N	−31N	2.0	19.0	19.0	1.00	807	0.0
38	Bautista, Guy	2224	BOL	−17B	−15N	−24B	+42N	F	+31B	F	2.0	18.5	18.5	4.00	1699	-70.4
39	FIDE 3366324	0	—	−26B	F	+46N	−32N	−33B	F	+45N	2.0	10.5	10.5	0.00	796	0.0
40	Aduviri Melendres, Nicolas	0	BOL	−8N	F	−25B	−23N	=34B	−24N	+42B	1.5	19.5	20.5	2.25	861	0.0
41	Ramos Mayta, Andy Rene	0	BOL	−12B	F	−35N	+33N	−19B	−32N	−30B	1.0	19.5	19.5	3.00	1276	0.0
42	Churata Gutierrez, Adriel	0	BOL	−7N	−27B	−37N	−38B	+45B	−34N	−40N	1.0	16.0	16.0	0.00	1009	0.0
43	FIDE 3340384	0	—	−32B	−28N	F	−15N	+46B	−33N	F	1.0	15.0	15.0	0.00	749	0.0
44	Parra, Daniel Alejandro	1650	BOL	+34B	−4N	−22B	F	F	F	F	1.0	11.0	11.0	2.50	871	-38.0
45	FIDE 3367312	0	—	−10N	−31B	−18N	−30B	−42N	F	−39B	0.0	18.5	19.5	0.00	833	0.0
46	FIDE 3367320	0	—	−21B	−33N	−39B	F	−43N	F	−29B	0.0	12.5	12.5	0.00	813	0.0
47	FIDE 3368777	0	—	F	−8B	−31N	−37B	F	F	F	0.0	12.0	12.0	0.00	858	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Mamani Lima, Jose AndresBOL
+59.6
4.5 pts · #12
2Escalier Rojas, Bruno AndresBOL
+50.8
3.5 pts · #20
3Rodriguez Lujan, Oliver AlbertBOL
+48.0
4.0 pts · #16

Top rating losers

1Gemio Yujra, Daniel DonatoBOL
-93.2
3.0 pts · #37
2Bautista, GuyBOL
-70.4
2.0 pts · #31
3Arteaga Herbas, Thiago AndreBOL
-54.0
3.0 pts · #33

Biggest upsets

R2+663 Elo gap
Rodriguez Lujan, Oliver Albert1561 beat Bautista, Guy2224
R1+489 Elo gap
WCMCoro, Soledad1735 beat Bautista, Guy2224
R7+259 Elo gap
Cachi Sirpa, Bryan Fernando1594 beat Cazorla Herrera, Rudy Daniel1853