Semifinales Campeonato Argentino Amateur 2025 Memorial MF. Gustavo Mendez
Open SwissStandard
29 players participated in this 7-round tournament, held from 12 Sept 2025 to 14 Sept 2025 in Rio Gallegos Santa Cruz, Argentina. 1 titled players from 2 federations. Top 10 Elo average was 1927, and top seed was Alexis Insfran (🇦🇷 ARG, 2085).
Matias Campeon (🇦🇷 ARG, 2085) won with 5.5/7, ahead of Alexis Insfran (5.0) and Agustin Larrea (5.0). Campeon took the lead from round 6.
The biggest upset came in round 7: Maria Ignacia Guerra Mansilla (1450) beat Lucas Morales (1552), a +102-point gap.
Location
🇦🇷Rio Gallegos Santa Cruz, Argentina
Dates
12 Sept 2025 → 14 Sept 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Titled players · 1
CM×1
Federations · 2 represented
🇦🇷Argentina×24
🇨🇱Chile×2
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsMatias Campeon led from R6; +0.5-point edge over the runner-up.
Co-leaders
13
6
2
1
1
1
1
R6 · LEADER CHANGE14 Sept
Matias Campeon takes the sole lead (5.0/6).
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Matias Campeon beat Alexis Insfran (White).
R1–R3 · WIN STREAK
Matias Campeon won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Matias Campeon | * | 1 | 1 | 0 |
| 2Alexis Insfran | 0 | * | — | ½ |
| 3Agustin Larrea | 0 | — | * | ½ |
| 4CMJorge Maximilian Guerra Mansilla | 1 | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Campeon, Matias | 2085 | ARG | +14B | +13N | +20B | −4N | +3B | +2B | =5N | 5.5 | 26.5 | 29.5 | 22.25 | 2101 | +5.6 |
| 2 | Insfran, Alexis | 2085 | ARG | +21N | +9B | =6N | +5B | =4B | −1N | +8B | 5.0 | 27.5 | 30.0 | 19.75 | 2077 | +2.6 |
| 3 | Larrea, Agustin | 0 | ARG | +8N | =5B | +18N | +6B | −1N | +12B | =4N | 5.0 | 27.0 | 30.0 | 19.75 | 2001 | 0.0 |
| 4 | Guerra Mansilla, Jorge MaximilianCM | 2029 | CHI | +27N | +16B | +19N | +1B | =2N | F | =3B | 5.0 | 25.0 | 26.0 | 18.00 | 2228 | +31.2 |
| 5 | Diaz, Walter | 2052 | ARG | +10B | =3N | =7B | −2N | +23B | +18N | =1B | 4.5 | 27.0 | 29.0 | 16.50 | 1967 | -7.6 |
| 6 | Medina, Juan Manuel Sebastian | 1834 | ARG | +26B | +25N | =2B | −3N | +17B | =8N | =7B | 4.5 | 24.0 | 25.0 | 13.25 | 1987 | +15.6 |
| 7 | Godoy, Joaquin | 1807 | ARG | +12N | −19B | =5N | =18B | +21N | +9B | =6N | 4.5 | 22.5 | 25.0 | 16.00 | 1942 | +36.4 |
| 8 | Martinez, Carlos | 1993 | ARG | −3B | +26N | +23B | =13N | +9N | =6B | −2N | 4.0 | 24.0 | 25.0 | 11.00 | 1881 | -11.8 |
| 9 | Koslab, Andres | 1756 | ARG | +28B | −2N | +24B | +19N | −8B | −7N | +23B | 4.0 | 20.5 | 21.5 | 8.00 | 1685 | -16.8 |
| 10 | Guerra Mansilla, Maria Ignacia | 1450 | CHI | −5N | =22B | =12N | +25B | −18N | +19B | +21N | 4.0 | 19.0 | 21.0 | 10.50 | 1595 | +18.4 |
| 11 | Ibanez, Daniel Alejandro | 1671 | ARG | +15B | −20N | +25B | F | −12N | +16N | +13B | 4.0 | 19.0 | 19.0 | 12.50 | 1890 | +34.8 |
| 12 | Caro, Jorge | 0 | ARG | −7B | +14N | =10B | +15N | +11B | −3N | F | 3.5 | 24.5 | 27.5 | 13.00 | 1657 | 0.0 |
| 13 | Alvarez Jamieson, Juan Bautista | 1746 | ARG | +22N | −1B | +21N | =8B | −20N | +14B | −11N | 3.5 | 22.5 | 25.0 | 10.50 | 1741 | -6.8 |
| 14 | Cayo, Sofia | 1631 | ARG | −1N | −12B | +22N | +28B | +19B | −13N | =18B | 3.5 | 21.0 | 22.0 | 8.00 | 1576 | -9.2 |
| 15 | Rodriguez, Gael | 0 | ARG | −11N | +29B | =16N | −12B | +22N | =21B | =17B | 3.5 | 19.5 | 19.5 | 7.25 | 1563 | 0.0 |
| 16 | Andrada, Santino | 1696 | ARG | +24B | −4N | =15B | −23N | +26N | −11B | +22N | 3.5 | 19.0 | 20.0 | 7.25 | 976 | -50.0 |
| 17 | Juzefiszyn, Santiago | 1682 | ARG | −19N | −18B | +29N | +26B | −6N | +24B | =15N | 3.5 | 17.0 | 17.0 | 4.75 | 1003 | -13.6 |
| 18 | Adorno, Anibal | 1771 | ARG | F | +17N | −3B | =7N | +10B | −5B | =14N | 3.0 | 25.0 | 25.0 | 11.50 | 1794 | +4.0 |
| 19 | Quintana, Fausto Daniel | 0 | ARG | +17B | +7N | −4B | −9B | −14N | −10N | +27B | 3.0 | 24.5 | 25.5 | 9.00 | 1599 | 0.0 |
| 20 | Leon, Mario | 1854 | ARG | +29N | +11B | −1N | F | +13B | F | F | 3.0 | 21.5 | 21.5 | 7.50 | 1959 | +8.0 |
| 21 | Morales, Lucas | 1552 | ARG | −2B | +28N | −13B | +24N | −7B | =15N | −10B | 2.5 | 22.5 | 23.5 | 4.75 | 935 | -47.2 |
| 22 | Munoz, Ayelen | 0 | ARG | −13B | =10N | −14B | +27N | −15B | +29N | −16B | 2.5 | 19.0 | 19.0 | 3.00 | 1305 | 0.0 |
| 23 | Garrido, Jose Ramon | 1628 | ARG | F | F | −8N | +16B | −5N | +25B | −9N | 2.0 | 18.0 | 18.0 | 5.50 | 1675 | +3.6 |
| 24 | FIDE 20071752 | 0 | — | −16N | +27B | −9N | −21B | +28N | −17N | F | 2.0 | 15.5 | 15.5 | 2.00 | 872 | 0.0 |
| 25 | Villalba, Alejandra | 0 | ARG | F | −6B | −11N | −10N | +29B | −23N | +26B | 2.0 | 15.5 | 15.5 | 1.00 | 842 | 0.0 |
| 26 | FIDE 20071540 | 0 | — | −6N | −8B | +27N | −17N | −16B | F | −25N | 1.0 | 18.5 | 18.5 | 1.00 | 1001 | 0.0 |
| 27 | Fernandez Lazarte, Keyla Magali | 1413 | ARG | −4B | −24N | −26B | −22B | F | +28N | −19N | 1.0 | 14.5 | 14.5 | 1.00 | 1229 | 0.0 |
| 28 | Fernandez Lazarte, Elias Benjamin | 0 | ARG | −9N | −21B | F | −14N | −24B | −27B | +29N | 1.0 | 13.0 | 13.0 | 0.00 | 846 | 0.0 |
| 29 | FIDE 20071531 | 0 | — | −20B | −15N | −17B | F | −25N | −22B | −28B | 0.0 | 15.5 | 15.5 | 0.00 | 968 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Godoy, JoaquinARG+36.44.5 pts · #5
- 2Ibanez, Daniel AlejandroARG+34.84.0 pts · #14
- 3Guerra Mansilla, Jorge MaximilianCMCHI+31.25.0 pts · #9
Top rating losers
- 1Andrada, SantinoARG-50.03.5 pts · #23
- 2Morales, LucasARG-47.22.5 pts · #29
- 3Koslab, AndresARG-16.84.0 pts · #18
Biggest upsets
- R7+102 Elo gap