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Semifinal Campeonato Argentino Amateurs 2025 - IRT Sub 2300 - Alfa Computacion

Open SwissStandard

26 players participated in this 6-round tournament, held from 08 Nov 2025 to 09 Nov 2025 in Cordoba - Cordoba, Argentina. 3 federations represented. Top 10 Elo average was 1898, and top seed was Pablo Jacobo (šŸ‡¦šŸ‡· ARG, 2245).

Marcelo Wilberger (šŸ‡µšŸ‡¾ PAR, 1842) won with 4.5/6, ahead of Lucas Mansilla (4.5) and Lautaro Gaston Acosta (4.5). Wilberger won on tie-break after catching the field in the final round.

The biggest upset came in round 1: Lautaro Emanuel Torres (1570) beat Jesus Campos (1883), a +313-point gap.

Location
šŸ‡¦šŸ‡·Cordoba - Cordoba, Argentina
Dates
08 Nov 2025 ā†’ 09 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss Ā· 6 rounds
Top seed
šŸ‡¦šŸ‡·Pablo Jacobo2245
Avg top 10
1,898
Participants
26
Federations Ā· 3 represented
šŸ‡¦šŸ‡·ArgentinaƗ24
šŸ‡µšŸ‡¾ParaguayƗ1
šŸ‡»šŸ‡ŖVenezuelaƗ1
Top 3

How it unfolded

Top 6 Ā· 6 rounds

Tight race until R6; 3 players tied at 4.5/6, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.

Co-leaders
10
2
4
2
1
3
1.534.56R1R2R3R4R5R6
Wilberger4.5Acosta4.5Mansilla4.5Jacobo4Campos4Canello3.5
R6 Ā· TIEBREAK CLUSTER

3 players finish on 4.5/6. Wilberger takes the title on Buchholz Cut1 (18.5).

R3 Ā· HEAD-TO-HEAD Ā· WINNER VS 2ND

Marcelo Wilberger drew with Lautaro Gaston Acosta (White).

Key matchups Ā· top 4

Head-to-head between the four finishers
Player1234
1Marcelo Wilberger*
Ā½
1
0
2Lautaro Gaston Acosta
Ā½
*ā€”
0
3Lucas Mansilla
0
ā€”*ā€”
4Pablo Jacobo
1
1
ā€”*

Grille amƩricaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfĪ”
1Wilberger, Marcelo1842PAR+26B+8N=3B+2Nāˆ’4B+12N4.518.518.512.252006+25.6
2Mansilla, Lucas1883ARG+10N=6B+7Nāˆ’1B+11N+19B4.516.518.512.251841-2.8
3Acosta, Lautaro Gaston1891ARG+22N+14B=1N+6B+13Nāˆ’4B4.516.517.511.251960+9.0
4Jacobo, Pablo2245ARG+9NFF+20B+1N+3N4.013.513.513.502657+14.0
5Campos, Jesus1883VENāˆ’8Bāˆ’11N+23B+26N+15B+18N4.010.510.55.001793-7.6
6Piana, Claudio1660ARG+21N=2N+14Bāˆ’3N=17B=11B3.515.517.08.001833+17.6
7Canello, Jose Luis1945ARG+16B=17Nāˆ’2Bāˆ’15N+14B+10N3.513.015.07.501819-16.2
8Torres, Lautaro Emanuel1570ARG+5Nāˆ’1Bāˆ’12N+9Bāˆ’10N+20B3.016.518.08.501697+36.8
9Torero Navarro, Camilo Ernesto1649ARGāˆ’4B+24Nāˆ’13Bāˆ’8N+26B+25N3.011.011.01.501706+9.6
10Soria, Felipe1523ARGāˆ’2B+23Nāˆ’16B=14N+8Bāˆ’7B2.515.016.05.001601+12.4
11Piccolin Najera, Juan0ARGF+5B+15NFāˆ’2B=6N2.514.014.07.7518610.0
12Luna, Pablo Damian1796ARGF=20N+8BF+16Nāˆ’1B2.511.011.05.751729-12.0
13Pereyra Zenklusen, Ramiro0ARGF=25B+9NFāˆ’3B+17N2.510.010.05.2517650.0
14Moreno, Alejandro Daniel1726ARG+18Bāˆ’3Nāˆ’6N=10Bāˆ’7N=21B2.016.017.54.001433-27.0
15Richard, Patrick Jorge1937ARGF+19Nāˆ’11B+7Bāˆ’5NF2.014.014.05.501913+0.2
16Molina, Ernesto1647ARGāˆ’7N+21B+10NFāˆ’12BF2.012.012.04.001630-2.4
17Dotti, Fernando1829ARG+24N=7BFF=6Nāˆ’13B2.010.510.54.501809+0.6
18Ledesma Fedrizzi, Juan Cruz0ARGāˆ’14N+22BFF+20Nāˆ’5B2.08.58.52.5016670.0
19Luna, Desiree1487ARGFāˆ’15B+22NF+25Bāˆ’2N2.08.08.01.501738+44.8
20Allende, Felipe1477ARGF=12B+25Nāˆ’4Nāˆ’18Bāˆ’8N1.512.012.01.751624+22.8
21Ruffa, Arturo0ARGāˆ’6Bāˆ’16Nāˆ’24BF+22N=14N1.59.59.52.0014630.0
22Saura, Leandro Francisco1578ARGāˆ’3Bāˆ’18Nāˆ’19B+23Nāˆ’21BF1.011.011.01.00889-30.8
23Sosa, Noah Austin0ARGāˆ’?Nāˆ’10Bāˆ’5Nāˆ’22BF+26N1.07.57.50.0013870.0
24Veron, Fabrizio Isaias1445ARGāˆ’17Bāˆ’9B+21NFFF1.07.07.01.50944-12.8
25Tanus Mafud, Emilio1599ARGF=13Nāˆ’20BFāˆ’19Nāˆ’9B0.510.010.01.25741-34.6
26Palacios, Roque1499ARGāˆ’1NFFāˆ’5Bāˆ’9Nāˆ’23B0.012.512.50.00994-20.0

Key insights

Biggest movers and upsets ā€” the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Semifinal Campeonato Argentino Amateurs 2025 - IRT Sub 2300 - Alfa Computacion ā€” Cordoba - Cordoba, Argentina | Chess Tournament Results | ChessStats