II TORNEO DE AJEDREZ SUB 2400 CLUB UMAG 2025
Open SwissStandard
43 players participated in this 6-round tournament, held from 19 Dec 2025 to 21 Dec 2025 in Punta Arenas, Chile. 1 titled players from 2 federations. Top 10 Elo average was 1916, and top seed was Federico Torres (🇦🇷 ARG, 2099).
Tomas Alderete (🇦🇷 ARG, 1863) won with 5.5/6, ahead of Jorge Maximilian Guerra Mansilla (5.0) and Federico Torres (5.0). Alderete won solo starting round 4.
The biggest upset came in round 3: Roman Andres Vargas Pastenes (1733) beat Federico Torres (2099), a +366-point gap.
Location
🇨🇱Punta Arenas, Chile
Dates
19 Dec 2025 → 21 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Titled players · 1
CM×1
Federations · 2 represented
🇨🇱Chile×25
🇦🇷Argentina×10
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTomas Alderete led from R4; +0.5-point edge over the runner-up.
Co-leaders
18
8
3
1
1
1
R4–R6 · LEAD HELD
Tomas Alderete held the sole lead from R4 through R6 without losing it.
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Tomas Alderete beat CM Jorge Maximilian Guerra Mansilla (White).
WIN STREAKS · 3 top finishers
Tomas Alderete 5 wins (R1–R5)CM Jorge Maximilian Guerra Mansilla 3 wins (R4–R6)Federico Torres 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Tomas Alderete | * | 1 | — | ½ |
| 2CMJorge Maximilian Guerra Mansilla | 0 | * | — | — |
| 3Federico Torres | — | — | * | — |
| 4Jorge Bordoli Aqueveque | ½ | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Alderete, Tomas | 1863 | ARG | +34B | +33N | +2B | +5N | +6B | =4N | 5.5 | 19.5 | 21.5 | 19.25 | 2220 | +39.0 |
| 2 | Guerra Mansilla, Jorge MaximilianCM | 2087 | CHI | +23N | +14B | −1N | +18B | +7N | +9B | 5.0 | 20.0 | 23.0 | 17.50 | 2052 | -1.2 |
| 3 | Torres, Federico | 2099 | ARG | +25B | +13N | −10B | +8N | +5B | +11N | 5.0 | 20.0 | 22.5 | 18.50 | 2038 | -4.4 |
| 4 | Bordoli Aqueveque, Jorge | 1876 | CHI | +17B | =20N | =26B | +33N | +38B | =1B | 4.5 | 16.0 | 17.0 | 11.50 | 1830 | -3.0 |
| 5 | Nandwani Narwani, Suraj Sriram | 1868 | CHI | +36N | +11B | +9N | −1B | −3N | +18B | 4.0 | 21.5 | 23.0 | 12.50 | 1826 | -7.2 |
| 6 | Barrozo, Cristian | 1835 | ARG | +41N | =12B | +20N | +15B | −1N | =8N | 4.0 | 20.0 | 20.5 | 11.00 | 1836 | +1.0 |
| 7 | Hurtado Bahamonde, Matias | 2020 | CHI | +16B | F | +12N | +10N | −2B | +15B | 4.0 | 20.0 | 20.0 | 15.00 | 2010 | +2.2 |
| 8 | Quiroga, Angel | 1892 | ARG | +28N | +22B | =15N | −3B | +14N | =6B | 4.0 | 19.0 | 21.5 | 12.75 | 1894 | +2.4 |
| 9 | Gomez Almonacid, Felipe Darcon | 1552 | CHI | +19B | +24N | −5B | +26N | +10B | −2N | 4.0 | 19.0 | 21.5 | 12.50 | 1908 | +86.0 |
| 10 | Vargas Pastenes, Roman Andres | 1733 | CHI | +30N | +18B | +3N | −7B | −9N | +33B | 4.0 | 18.5 | 20.5 | 12.50 | 1843 | +12.6 |
| 11 | Juzefiszyn, Santiago | 1675 | ARG | +39B | −5N | +17B | +21N | +19B | −3B | 4.0 | 18.0 | 19.0 | 10.00 | 1676 | -2.2 |
| 12 | Monsalve Gonzalez, Christian Alex | 1640 | CHI | +21B | =6N | −7B | +27N | =24B | +19N | 4.0 | 17.0 | 19.5 | 12.00 | 1807 | +31.2 |
| 13 | AICON THORMANN, Diego Rodrigo | 1676 | CHI | +32N | −3B | +28N | F | +17B | +38N | 4.0 | 14.0 | 15.0 | 9.00 | 1794 | +15.2 |
| 14 | Alvarez, Joaquin | 1728 | ARG | +35B | −2N | +27B | =16N | −8B | +25N | 3.5 | 17.5 | 19.5 | 8.75 | 1709 | -7.2 |
| 15 | Vrsalovic Acuna. Stjepan Antonio | 1763 | CHI | +42B | +37N | =8B | −6N | +16B | −7N | 3.5 | 17.0 | 17.0 | 7.00 | 1720 | -10.8 |
| 16 | Henriquez rivas, Roderick Felipe | 1482 | CHI | −7N | +31B | +22N | =14B | −15N | +29B | 3.5 | 16.5 | 19.0 | 9.75 | 1681 | +33.6 |
| 17 | Martinez Teca, Isidora Catalina Belen | 1456 | CHI | −4N | +32B | −11N | +30B | −13N | +39N | 3.0 | 17.5 | 18.5 | 6.00 | 937 | -20.8 |
| 18 | Vargas Martinez, Francisca Alejan | 1580 | CHI | +38B | −10N | +37B | −2N | +21B | −5N | 3.0 | 17.5 | 18.5 | 5.50 | 1061 | -21.6 |
| 19 | Vera Del Rio, Nicolas Maximiliano | 0 | CHI | −9N | +42N | +25B | +20B | −11N | −12B | 3.0 | 17.5 | 17.5 | 5.50 | 1539 | 0.0 |
| 20 | VILLEGAS GALLARDO, AGATHA DANAHE | 1656 | CHI | +43N | =4B | −6B | −19N | +36B | =26N | 3.0 | 15.5 | 15.5 | 5.00 | 1714 | +8.4 |
| 21 | Lopez, Aaron | 0 | ARG | −12N | +36B | +23N | −11B | −18N | +?B | 3.0 | 15.5 | 15.5 | 4.50 | 1411 | 0.0 |
| 22 | Rebolledo Morales, Lucas Jesus | 1693 | ARG | +31B | −8N | −16B | =36N | +37B | =23N | 3.0 | 14.5 | 16.0 | 6.25 | 1359 | -49.6 |
| 23 | OYARZUN GALAZ, LAUTARO MIGUEL | 1521 | CHI | −2B | +35N | −21B | =37N | +40N | =22B | 3.0 | 14.5 | 15.5 | 5.25 | 1614 | +6.0 |
| 24 | Mattioni Cardenas, Aldo | 1817 | CHI | F | −9B | +40N | =29B | =12N | +28B | 3.0 | 14.0 | 14.0 | 6.75 | 1555 | -18.8 |
| 25 | Alvarado Noceti, Fernanda Paz | 1528 | CHI | −3N | +30B | −19N | +34B | =29N | −14B | 2.5 | 16.5 | 18.5 | 5.75 | 1028 | -12.8 |
| 26 | Gallardo Rojel, Alejandro | 1805 | CHI | F | +29B | =4N | −9B | =28N | =20B | 2.5 | 16.5 | 16.5 | 7.50 | 1552 | -25.8 |
| 27 | Carvajal, Quimey | 1557 | ARG | =29N | +40B | −14N | −12B | =31N | =32B | 2.5 | 15.0 | 16.0 | 4.75 | 884 | -26.4 |
| 28 | Guerra Mansilla, Maria Ignacia | 1481 | CHI | −8B | +39N | −13B | +43N | =26B | −24N | 2.5 | 14.5 | 14.5 | 2.25 | 1471 | -2.0 |
| 29 | Quintullanca Barria, Cristobal Gabriel | 0 | CHI | =27B | −26N | +?B | =24N | =25B | −16N | 2.5 | 14.0 | 14.0 | 4.00 | 1489 | 0.0 |
| 30 | Cardenas Vargas, Fernanda Sofia | 0 | CHI | −10B | −25N | +39B | −17N | +43B | =31N | 2.5 | 13.0 | 13.0 | 2.25 | 773 | 0.0 |
| 31 | Evens Barria Eden Christopher | 0 | CHI | −22N | −16N | =41B | +42N | =27B | =30B | 2.5 | 12.0 | 12.0 | 2.75 | 1304 | 0.0 |
| 32 | Evens Naupayan Adrian Christopher | 0 | CHI | −13B | −17N | +42B | +41N | −33B | =27N | 2.5 | 12.0 | 12.0 | 1.75 | 1252 | 0.0 |
| 33 | Villalba, Alejandra | 1603 | ARG | F | −1B | +34N | −4B | +32N | −10N | 2.0 | 18.5 | 18.5 | 4.50 | 1024 | -26.8 |
| 34 | FIDE 3476561 | 0 | — | −1N | +43B | −33B | −25N | F | +40B | 2.0 | 12.0 | 12.0 | 1.00 | 865 | 0.0 |
| 35 | FIDE 3485021 | 0 | — | −14N | −23B | −36N | −39B | +42B | +43N | 2.0 | 9.0 | 9.0 | 0.00 | 825 | 0.0 |
| 36 | Morales Bradasic, Salvador Gaspar | 0 | CHI | −5B | −21N | +35B | =22B | −20N | −37N | 1.5 | 15.0 | 16.5 | 3.50 | 1467 | 0.0 |
| 37 | Evens Barria, Aaron Francisco | 0 | CHI | F | −15B | −18N | =23B | −22N | +36B | 1.5 | 14.0 | 14.0 | 3.00 | 1319 | 0.0 |
| 38 | FIDE 3489159 | 0 | — | −18N | +41B | F | F | −4N | −13B | 1.0 | 16.0 | 16.0 | 0.50 | 911 | 0.0 |
| 39 | FIDE 3488942 | 0 | — | −11N | −28B | −30N | +35N | F | −17B | 1.0 | 14.0 | 16.0 | 2.00 | 735 | 0.0 |
| 40 | FIDE 3481760 | 0 | — | F | −27N | −24B | +?N | −23B | −34N | 1.0 | 10.5 | 10.5 | 0.00 | 832 | 0.0 |
| 41 | FIDE 3485030 | 0 | — | −6B | −38N | =31N | −32B | −?N | F | 0.5 | 10.0 | 10.0 | 1.25 | 1035 | 0.0 |
| 42 | FIDE 3485013 | 0 | — | −15N | −19B | −32N | −31B | −35N | F | 0.0 | 13.5 | 14.0 | 0.00 | 969 | 0.0 |
| 43 | FIDE 3489140 | 0 | — | −20B | −34N | F | −28B | −30N | −35B | 0.0 | 12.0 | 12.0 | 0.00 | 764 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Gomez Almonacid, Felipe DarconCHI+86.04.0 pts · #10
- 2Alderete, TomasARG+39.05.5 pts · #3
- 3Henriquez rivas, Roderick FelipeCHI+33.63.5 pts · #19
Top rating losers
- 1Rebolledo Morales, Lucas JesusARG-49.63.0 pts · #29
- 2Villalba, AlejandraARG-26.82.0 pts · #38
- 3Carvajal, QuimeyARG-26.42.5 pts · #43
Biggest upsets
- R3+366 Elo gap
- R2+265 Elo gap
- R4+253 Elo gap