9no Abierto Ciudad de Montevideo - Copa Antel

SwissStandard

79 players participated in this 9-round tournament, held from 30 Jan 2026 to 07 Feb 2026 in Montevideo, Uruguay. 27 titled players from 8 federations. Top 10 Elo average was 2444, and top seed was Johan-Sebastian Christiansen (🇳🇴 NOR, GM, 2656).

Brandon Jacobson (🇺🇸 USA, GM, 2584) won with 7.5/9, ahead of Johan-Sebastian Christiansen (7.0) and Bernardo Roselli Mailhe (7.0). Jacobson won solo starting round 6.

The biggest upset came in round 2: Pacha Villalba (1622) beat Benjamin Martello (1986), a +364-point gap.

Location

🇺🇾Montevideo, Uruguay

Dates

30 Jan 2026 → 07 Feb 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇳🇴GMJohan-Sebastian Christiansen2656

Avg top 10

2,444

Participants

Titled players · 27

GM×5

IM×9

FM×8

CM×1

WGM×1

WFM×2

WCM×1

Federations · 8 represented

🇺🇾Uruguay×59

🇦🇷Argentina×10

🇲🇽Mexico×2

🇻🇪Venezuela×1

🇨🇺Cuba×1

🇨🇦Canada×1

🇳🇴Norway×1

🇮🇹Italy×1

Top 3

🥇
GMBrandon Jacobson
🇺🇸USA·2584
7.5pts·2637perf+7.0
🥈
GMJohan-Sebastian Christiansen
🇳🇴NOR·2656
7.0pts·2576perf-3.2
🥉
IMBernardo Roselli Mailhe
🇺🇾URU·2288
7.0pts·2512perf+25.6

How it unfolded

Top 6 · 9 rounds

GM Brandon Jacobson led from R6; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.

Co-leaders

Jacobson7.5Christiansen7Tristan7Roselli Mailhe7Villegas6.5Vazquez6.5

R6–R9 · LEAD HELD

GM Brandon Jacobson held the sole lead from R6 through R9 without losing it.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

GM Brandon Jacobson beat GM Johan-Sebastian Christiansen (White).

WIN STREAKS · 3 top finishers

GM Brandon Jacobson 6 wins (R1–R6)GM Johan-Sebastian Christiansen 5 wins (R1–R5)GM Leonardo Tristan 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1GMBrandon Jacobson	*	1	—	½
2GMJohan-Sebastian Christiansen	0	*	1	1
3GMLeonardo Tristan	—	0	*	—
4IMBernardo Roselli Mailhe	½	0	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Jacobson, BrandonGM	2584	USA	+27N	+11B	+8N	+20B	+10N	+2B	=6N	=5B	=3N	7.5	50.5	55.5	45.50	2637	+7.0
2	Christiansen, Johan-SebastianGM	2656	NOR	+78B	+34N	+3B	+6N	+4B	−1N	=9B	+20N	=5B	7.0	50.0	51.0	37.25	2576	-3.2
3	Roselli Mailhe, BernardoIM	2288	URU	+77N	+19B	−2N	+17B	+35N	=5B	+7N	+6B	=1B	7.0	49.5	50.5	36.50	2512	+25.6
4	Tristan, LeonardoGM	2477	ARG	+45N	+13B	+16N	+7B	−2N	+20B	−5N	+11B	+9N	7.0	48.5	52.5	39.00	2550	+9.3
5	Acosta, Pablo IsmaelIM	2484	ARG	+58B	+15N	+25B	−10N	+42B	=3N	+4B	=1N	=2N	6.5	49.0	52.0	35.25	2496	+4.7
6	Vazquez, FacundoIM	2420	URU	+43B	+22N	+23B	−2B	+16N	+21N	=1B	−3N	+15B	6.5	47.5	51.5	33.75	2429	+3.7
7	Villegas, FrancoIM	2331	ARG	+32B	+30N	+18B	−4N	=15B	+36N	−3B	+22N	+17B	6.5	45.5	50.0	33.25	2292	-2.8
8	Sanhueza, CristianFM	2246	ARG	+55N	+33B	−1B	+48N	−21B	+42N	=22B	+18N	+19N	6.5	41.0	44.5	29.50	2252	+3.8
9	Hernandez Guerrero, GilbertoGM	2411	MEX	+57N	−17B	+47N	+13B	=11N	+10B	=2N	+12B	−4B	6.0	47.5	50.5	31.50	2370	-1.6
10	Garcia Palermo, Carlos HoracioGM	2388	ITA	+26N	+28B	+17N	+5B	−1B	−9N	−15B	+30N	+23B	6.0	46.0	51.0	32.00	2347	-1.6
11	Coppola, ClaudioIM	2216	URU	+75B	−1N	+43B	+44N	=9B	=15N	+26B	−4N	+34B	6.0	43.5	44.5	24.25	2290	+19.4
12	Ocampos, Ian	2233	ARG	+56B	−18N	+27B	−21N	+37B	+14N	+33B	−9N	+20B	6.0	41.5	44.5	28.00	2195	-4.4
13	Muniz, RafaelFM	2158	URU	+65B	−4N	+51B	−9N	+58B	−33N	+49N	+29B	+16N	6.0	38.0	41.0	23.50	2184	+9.2
14	Izquierdo, DanielFM	2058	URU	+62N	−20B	+59N	−16B	+57N	−12B	+43N	+33B	+24N	6.0	36.0	39.0	22.50	2163	+26.8
15	Petti, Luca Giovanni	2172	ARG	+52N	−5B	+57N	+24B	=7N	=11B	+10N	=16B	−6N	5.5	45.5	48.5	26.50	2303	+63.5
16	Carbone, DiegoFM	2236	URU	+40B	+44N	−4B	+14N	−6B	+48N	+21B	=15N	−13B	5.5	44.5	48.5	26.25	2220	-1.2
17	Kulik, Nicolas	2057	URU	+68B	+9N	−10B	−3N	+51B	+25N	+34B	=23N	−7N	5.5	43.5	46.0	24.00	2264	+48.0
18	Varela, Mateo	1965	URU	+66N	+12B	−7N	=19B	−36N	+50B	+28N	−8B	+35N	5.5	42.0	44.5	24.25	2138	+40.8
19	Soto, Nicolas	2030	URU	+46B	−3N	=56B	=18N	+38B	=23N	+45B	+25N	−8B	5.5	41.5	44.5	24.25	2105	+19.8
20	Villca, JulianIM	2397	ARG	+51B	+14N	+21B	−1N	+25B	−4N	+35B	−2B	−12N	5.0	48.0	51.5	24.00	2316	-7.5
21	Pitschka, ClausFM	2038	GER	+60N	+24B	−20N	+12B	+8N	−6B	−16N	=35B	=36N	5.0	43.5	46.5	25.00	2231	+43.4
22	Piasetski, LeonIM	2151	CAN	+54N	−6B	=26N	+49B	=29N	+24B	=8N	−7B	=31N	5.0	43.0	46.5	22.75	2118	-2.2
23	Oddone, Cristhian	2219	URU	+63N	+76B	−6N	−33B	+27N	=19B	+31N	=17B	−10N	5.0	41.0	42.0	19.50	2095	-24.4
24	Rodi, Luis ErnestoIM	2248	URU	+38B	−21N	+37B	−15N	+32B	−22N	+58B	+26N	−14B	5.0	40.5	43.5	22.00	2042	-21.4
25	Larrea, ManuelFM	2233	URU	+49N	+29B	−5N	+28B	−20N	−17B	+44N	−19B	+50N	5.0	40.0	43.5	21.00	2118	-22.8
26	Curcio, Luciano Joel	1901	ARG	−10B	+79N	=22B	+39N	+30B	=34N	−11N	−24B	+42N	5.0	40.0	40.0	18.25	2114	+90.4
27	Moreno, Diego	1947	URU	−1B	+75N	−12N	+74B	−23B	+41N	=42B	+37N	=28N	5.0	38.0	39.0	16.00	2069	+25.4
28	Ramon Pita, VivianWGM	2040	CUB	+79B	−10N	+38B	−25N	=40B	+56N	−18B	+51N	=27B	5.0	37.0	37.0	15.75	2000	-9.4
29	Lanzilotta, Filippo	1985	URU	+67B	−25N	+73B	=34N	=22B	=30N	=36B	−13N	+46B	5.0	36.5	38.0	17.50	2025	+23.6
30	Saralegui, Mario	2046	URU	+53N	−7B	=69N	+47B	−26N	=29B	+57N	−10B	+61N	5.0	36.0	38.5	17.25	1964	-15.8
31	Martello, Benjamin	1986	URU	=69N	−47B	=70B	+41N	=46B	+40N	−23B	+38N	=22B	5.0	34.0	36.5	20.50	1888	-20.0
32	Cardarelli, Leon	1897	URU	−7N	=53B	+63N	+69B	−24N	−49B	=61N	+70B	+44N	5.0	31.0	33.5	15.25	1943	+14.0
33	Ganza Svidler , Pedro	2002	ARG	+73B	−8N	+46B	+23N	−34B	+13B	−12N	−14N	=39B	4.5	42.5	44.0	18.75	2021	+6.8
34	Bauza, AlejandroFM	2188	URU	+61N	−2B	+45N	=29B	+33N	=26B	−17N	=36B	−11N	4.5	41.5	44.5	18.75	2058	-29.6
35	Estrada Nieto, JulianIM	2177	MEX	=41B	+70N	+39B	=42N	−3B	+44B	−20N	=21N	−18B	4.5	39.5	42.0	17.75	2015	-16.2
36	Carvalho, GuillermoCM	2045	URU	F	+37B	−42N	+56N	+18B	−7B	=29N	=34N	=21B	4.5	38.0	38.0	20.25	2088	+9.4
37	Izquierdo, Sebastian	1978	URU	+64B	−36N	−24N	+61B	−12N	=55N	+56B	−27B	+52N	4.5	33.5	36.5	14.25	1917	-13.6
38	Quevedo, AndreinaWFM	1850	URU	−24N	+60B	−28N	+59B	−19N	=66B	+53N	−31B	+49B	4.5	33.5	36.0	14.25	1865	+1.8
39	Caballero, Tabare	1723	URU	=42N	+50B	−35N	−26B	=71N	−43B	+64N	+57B	=33N	4.5	31.5	34.0	15.00	1926	+86.0
40	Parma, Pamela	1838	ARG	−16N	−59B	+62N	+60B	=28N	−31B	+66N	−44B	+69N	4.5	31.0	33.5	13.50	1847	+0.2
41	Lopez, Bryan	1771	URU	=35N	−42B	=50N	−31B	+76N	−27B	+47N	=71B	+66B	4.5	31.0	32.0	12.75	1848	+16.2
42	Curi, GabrielFM	2074	URU	=39B	+41N	+36B	=35B	−5N	−8B	=27N	=45N	−26B	4.0	41.0	45.0	18.00	1982	-21.6
43	Silva, Juliana Figueira TheophiloWFM	1923	BRA	−6N	+54B	−11N	+52B	−48B	+39N	−14B	−46N	+59B	4.0	38.0	41.0	14.50	1874	-26.4
44	Araque, Jairo	2017	VEN	+59N	−16B	+76N	−11B	+70B	−35N	−25B	+40N	−32B	4.0	36.0	37.0	11.00	1924	-18.6
45	Miller, Ariel	1941	URU	−4B	+65N	−34B	=68N	+67B	+69N	−19N	=42B	−48N	4.0	33.0	35.5	11.25	1899	-10.2
46	de Armas, Yahir	1688	URU	−19N	+77B	−33N	+72B	=31N	−71B	=50N	+43B	−29N	4.0	32.0	33.0	11.25	1900	+45.2
47	Villalba, Pacha	1622	URU	=71B	+31N	−9B	−30N	−56B	=60N	−41B	+75N	+70N	4.0	31.5	32.5	11.25	1831	+84.8
48	Caitano, Martin Joel	2081	URU	F	F	+52N	−8B	+43N	−16B	+71N	F	+45B	4.0	26.0	26.0	14.00	2138	+10.2
49	Davila Texeira, Mario	1811	URU	−25B	=67N	+64B	−22N	+73B	+32N	−13B	F	−38N	3.5	32.5	32.5	10.75	1858	+4.2
50	Zaruski, Julio	1812	URU	F	−39N	=41B	=67N	+68B	−18N	=46B	+59N	−25B	3.5	31.5	31.5	11.00	1757	-15.4
51	Menezes, Emanuel	1903	URU	−20N	+62B	−13N	+79B	−17N	=61B	+68N	−28B	F	3.5	30.0	30.0	7.00	1885	-13.6
52	Piriz, Facundo	1752	URU	−15B	+58N	−48B	−43N	−66B	=64N	+67B	+60N	−37B	3.5	29.5	32.0	10.00	1769	-1.0
53	Gonzalez Prestes, Marcos	1693	URU	−30B	=32N	=78B	−58N	+77N	=74B	−38B	=56N	=60B	3.5	26.0	27.0	7.75	1790	+38.8
54	Werle, Carolin	1724	URU	−22B	−43N	−58B	−55B	+75N	−72N	+76B	=67N	+79B	3.5	22.0	22.0	3.25	1731	-1.0
55	Barandiaran, Gabriel	1845	URU	−8B	−73N	−68B	+54N	+79N	=37B	F	+62B	F	3.5	21.5	21.5	8.75	1816	-7.6
56	Fabra, Nahiara	1798	URU	−12N	+66B	=19N	−36B	+47N	−28B	−37N	=53B	F	3.0	36.0	38.5	11.00	1814	-1.2
57	Alvarez, Mateo	1912	URU	−9B	+68N	−15B	+65N	−14B	+62N	−30B	−39N	F	3.0	35.5	35.5	8.50	1846	-17.6
58	Romero, Juan	1945	URU	−5N	−52B	+54N	+53B	−13N	+70B	−24N	−61B	F	3.0	34.0	36.5	9.50	1851	-24.0
59	Onetto, Gaston	1687	URU	−44B	+40N	−14B	−38N	−61N	+65B	+63N	−50B	−43N	3.0	32.5	35.5	10.50	1744	+10.4
60	Reolon, Victor	1689	URU	−21B	−38N	+75B	−40N	=63N	=47B	=74N	−52B	=53N	3.0	29.5	30.5	7.00	1670	-5.6
61	Tacoronte, Daniel	1775	URU	−34B	F	F	−37N	+59B	=51N	=32B	+58N	−30B	3.0	28.5	28.5	10.25	1897	+38.0
62	Fauci, Bruno	1704	URU	−14B	−51N	−40B	+75N	+78N	−57B	+72B	−55N	F	3.0	26.5	27.5	4.00	1812	+38.4
63	Solari, Pablo	1797	URU	−23B	=64N	−32B	=73N	=60B	=67N	−59B	+79N	F	3.0	26.0	26.0	5.00	1676	-29.8
64	Araque, Silvana	1614	URU	−37N	=63B	−49N	=77B	=74N	=52B	−39B	−72N	+76B	3.0	23.5	24.5	5.50	1657	+14.8
65	Nakle, Gonzalo	1749	URU	−13N	−45B	+66N	−57B	F	−59N	+75B	−76N	+73N	3.0	22.0	22.0	5.00	1688	-15.6
66	Contardi, Mateo	1604	URU	−18B	−56N	−65B	F	+52N	=38N	−40B	+68B	−41N	2.5	31.0	31.0	8.25	1662	+19.6
67	Nunez, Hiber	1655	URU	−29N	=49B	=77N	=50B	−45N	=63B	−52N	=54B	F	2.5	28.5	29.5	7.25	1697	+6.8
68	Kaciusis, Daniel	1697	URU	−17N	−57B	+55N	=45B	−50N	+73B	−51B	−66N	F	2.5	28.0	29.5	7.00	1703	-1.4
69	Martinez, Valentino	1660	URU	=31B	=78N	=30B	−32N	+72N	−45B	F	F	−40B	2.5	28.0	28.0	7.50	1834	+51.6
70	Larrea, DanielaWCM	1805	URU	F	−35B	=31N	+76B	−44N	−58N	+79B	−32N	−47B	2.5	26.5	26.5	3.50	1705	-21.4
71	Escofet, Jaime	1979	URU	=47N	F	F	F	=39B	+46N	−48B	=41N	F	2.5	21.0	21.0	10.50	1777	-23.6
72	Melani, Mauro	1891	URU	F	F	F	−46N	−69B	+54B	−62N	+64B	F	2.0	16.0	16.0	6.50	1606	-73.6
73	Indart, Lucio	1675	URU	−33N	+55B	−29N	=63B	−49N	−68N	F	F	−65B	1.5	25.0	25.0	5.00	1611	-22.8
74	Rey, Fernando	1772	URU	F	F	F	−27N	=64B	=53N	=60B	F	F	1.5	17.0	17.0	4.75	1649	-14.0
75	Porteiro, Rodrigo	1796	URU	−11N	−27B	−60N	−62B	−54B	+76N	−65N	−47B	F	1.0	28.5	28.5	1.00	1436	-69.0
76	Gonzalez Bodega, Juliana	1435	URU	F	−23N	−44B	−70N	−41B	−75B	−54N	+65B	−64N	1.0	26.5	26.5	3.00	1444	-1.0
77	Volpe, Agustin	1879	URU	−3B	−46N	=67B	=64N	−53B	F	F	F	F	1.0	20.0	20.0	2.75	1546	-86.8
78	Durante, Aurelio	1951	URU	−2N	=69B	=53N	F	−62B	F	F	F	F	1.0	16.0	16.0	3.00	1659	-31.2
79	Traverso, Luis	1690	URU	−28N	−26B	F	−51N	−55B	F	−70N	−63B	−54N	0.0	27.0	27.0	0.00	1059	-40.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Curcio, Luciano JoelARG
+90.4
5.0 pts · #30
2Caballero, TabareURU
+86.0
4.5 pts · #37
3Villalba, PachaURU
+84.8
4.0 pts · #43

Top rating losers

1Volpe, AgustinURU
-86.8
1.0 pts · #78
2Melani, MauroURU
-73.6
2.0 pts · #72
3Porteiro, RodrigoURU
-69.0
1.0 pts · #75

Biggest upsets

R2+364 Elo gap
Villalba, Pacha1622 beat Martello, Benjamin1986
R2+354 Elo gap
Kulik, Nicolas2057 beat GMHernandez Guerrero, Gilberto2411
R8+314 Elo gap
Gonzalez Bodega, Juliana1435 beat Nakle, Gonzalo1749