IRT SUB-2400 Soberania nacional
31 players participated in this 6-round tournament, held from 21 Nov 2025 to 24 Nov 2025 in Caba, Argentina. 3 federations represented. Top 10 Elo average was 1833, and top seed was Gustavo Altopiedi (🇦🇷 ARG, 1974).
Ezequiel Gullace (🇦🇷 ARG, 1933) won with 4.0/6, ahead of Stefan Botz (4.0) and Lucas Mujica (4.0). Gullace won on tie-break after catching the field in the final round.
The biggest upset came in round 3: Joel Barcaya (1424) beat Mario D Angiola (1644), a +220-point gap.
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How it unfolded
Top 6 · 6 roundsTight race until R6; 5 players tied at 4.0/6, decided on Buchholz. Title race narrowed from 4 co-leaders at R4 to 5 at the finish.
Stefan Botz takes the sole lead (4.0/5).
5 players finish on 4.0/6. Gullace takes the title on Buchholz Cut1 (18.5).
Gustavo Altopiedi 4 wins (R1–R6)Lucas Mujica 3 wins (R2–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Gustavo Altopiedi | * | — | 1 | 1 |
| 2Lucas Mujica | — | * | 0 | 1 |
| 3Stefan Botz | 0 | 1 | * | 0 |
| 4Ezequiel Gullace | 0 | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gullace, Ezequiel | 1933 | ARG | +13N | +6B | +2N | −3B | −4N | +9B | 4.0 | 18.5 | 21.5 | 13.50 | 1931 | +1.2 |
| 2 | Botz, Stefan | 1916 | ARG | +11B | +18N | −1B | +9B | +3N | −4B | 4.0 | 18.0 | 20.5 | 12.50 | 1922 | +3.0 |
| 3 | Mujica, Lucas | 1889 | ARG | F | +12B | +10N | +1N | −2B | +17N | 4.0 | 16.5 | 16.5 | 12.50 | 2044 | +19.0 |
| 4 | Altopiedi, Gustavo | 1974 | ARG | +16B | F | +9N | F | +1B | +2N | 4.0 | 13.5 | 13.5 | 13.50 | 2593 | +22.6 |
| 5 | Romero, Victoria | 1597 | ARG | −14B | +30N | −7B | +24N | +19N | +21B | 4.0 | 12.5 | 12.5 | 6.00 | 1781 | +49.2 |
| 6 | Quadri, Silvio | 1761 | ARG | +28B | −1N | +11B | +12N | =17B | −7N | 3.5 | 16.0 | 16.5 | 7.75 | 1760 | +1.0 |
| 7 | Peredo, Juan Ignacio | 1731 | ARG | F | F | +5N | +22B | =14N | +6B | 3.5 | 12.5 | 12.5 | 11.00 | 1989 | +22.8 |
| 8 | Flecha, Santiago | 1793 | ARG | +29B | −9N | +19B | F | =21N | +12B | 3.5 | 11.0 | 11.0 | 7.00 | 1827 | +4.6 |
| 9 | Schveide, Fausto | 1681 | ARG | +26N | +8B | −4B | −2N | +23B | −1N | 3.0 | 17.5 | 18.5 | 6.50 | 1767 | +18.4 |
| 10 | Marinesco, Tomas | 1761 | ARG | =15N | +25B | −3B | −11N | +18N | =13B | 3.0 | 15.5 | 17.0 | 7.00 | 1657 | -16.4 |
| 11 | Campos, Diego | 1603 | ARG | −2N | +27B | −6N | +10B | +26N | −14B | 3.0 | 14.5 | 15.5 | 5.00 | 1677 | +16.0 |
| 12 | Quintans, Fernando | 1670 | ARG | +30B | −3N | +24B | −6B | +22N | −8N | 3.0 | 14.5 | 14.5 | 3.50 | 1609 | -8.4 |
| 13 | Varessi, Mauro | 1617 | ARG | −1B | +28N | −17B | +15N | =25B | =10N | 3.0 | 14.0 | 14.5 | 5.75 | 1685 | +9.8 |
| 14 | Lopez, Javier | 1830 | ARG | +5N | F | =21B | F | =7B | +11N | 3.0 | 12.5 | 12.5 | 9.75 | 1859 | +3.0 |
| 15 | Sosto, Hernan | 1578 | ARG | =10B | −16N | =20N | −13B | +28N | +26B | 3.0 | 12.0 | 12.5 | 4.25 | 1542 | -10.8 |
| 16 | D Angiola, Mario | 1644 | ARG | −4N | +15B | −22N | +30B | =20N | −19B | 2.5 | 14.0 | 14.0 | 4.25 | 1490 | -21.4 |
| 17 | Chocala, Thiago Ignacio | 1743 | ARG | F | F | +13N | +23B | =6N | −3B | 2.5 | 12.5 | 12.5 | 6.75 | 1807 | +14.0 |
| 18 | Pino, Eduardo Martin | 1701 | ESP | +27B | −2B | −23N | =25N | −10B | +28N | 2.5 | 11.5 | 12.0 | 2.25 | 1581 | -40.0 |
| 19 | Molina, Sebastian | 1712 | FID | =24N | +31B | −8N | F | −5B | +16N | 2.5 | 11.5 | 11.5 | 3.25 | 1556 | -35.2 |
| 20 | Villarroel Limachi, John | 1510 | ARG | F | −21N | =15B | +29N | =16B | =25N | 2.5 | 9.5 | 9.5 | 4.00 | 1620 | +29.6 |
| 21 | Rivero, Mario | 1732 | ARG | F | +20B | =14N | F | =8B | −5N | 2.0 | 13.0 | 13.0 | 5.75 | 1682 | -5.0 |
| 22 | Barcaya, Joel | 1424 | ARG | F | F | +16B | −7N | −12B | +24N | 2.0 | 10.5 | 10.5 | 4.00 | 1646 | +44.4 |
| 23 | Maksimow, Nicolas | 1582 | ARG | F | F | +18B | −17N | −9N | +27B | 2.0 | 9.0 | 9.0 | 3.50 | 1651 | +14.8 |
| 24 | Yacomini, Isabella | 1538 | ARG | =19B | F | −12N | −5B | +29N | −22B | 1.5 | 12.0 | 12.0 | 1.75 | 1450 | -23.6 |
| 25 | Cabrera, Marco | 1552 | ARG | F | −10N | F | =18B | =13N | =20B | 1.5 | 11.0 | 11.0 | 4.00 | 1560 | 0.0 |
| 26 | Montilla Pereda, Ernesto Miguel | 0 | ARG | −9B | +29N | F | F | −11B | −15N | 1.0 | 9.5 | 9.5 | 0.50 | 1422 | 0.0 |
| 27 | Ananda Kumari, Devansh | 1480 | ARG | −18N | −11N | =29B | =28B | F | −23N | 1.0 | 8.5 | 8.5 | 0.50 | 1364 | -26.4 |
| 28 | Pelegrino, Antonio | 1541 | ARG | −6N | −13B | F | =27N | −15B | −18B | 0.5 | 13.0 | 13.0 | 0.50 | 1261 | -58.0 |
| 29 | Cadelago, Luis | 1595 | ARG | −8N | −26B | =27N | −20B | −24B | F | 0.5 | 9.5 | 9.5 | 0.50 | 1258 | -64.0 |
| 30 | FIDE 20064420 | 0 | — | −12N | −5B | F | −16N | F | F | 0.0 | 10.5 | 10.5 | 0.00 | 837 | 0.0 |
| 31 | FIDE 20074603 | 0 | — | F | −19N | F | F | F | F | 0.0 | 4.0 | 4.0 | 0.00 | 912 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Romero, VictoriaARG+49.24.0 pts · #9
- 2Barcaya, JoelARG+44.42.0 pts · #21
- 3Villarroel Limachi, JohnARG+29.62.5 pts · #13
- 1Cadelago, LuisARG-64.00.5 pts · #29
- 2Pelegrino, AntonioARG-58.00.5 pts · #28
- 3Pino, Eduardo MartinESP-40.02.5 pts · #12
- R3+220 Elo gap
- R4+158 Elo gap
- R6+135 Elo gap