Mayor 2025 Club de Ajedrez Capablanca Trelew
16 players participated in this 7-round tournament, held from 13 Sept 2025 to 21 Sept 2025 in Trelew Chubut, Argentina. Top 10 Elo average was 1921, and top seed was Eugenio Crespo (🇦🇷 ARG, 2185).
Eugenio Crespo (🇦🇷 ARG, 2185) won with 6.5/7, ahead of Alfonso Uzcudun (5.5) and Miguel Angel Gomez (4.0). Crespo won solo starting round 3.
The biggest upset came in round 1: Enzo Huichulef (1660) beat Walter Jaramillo (1895), a +235-point gap.
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How it unfolded
Top 6 · 7 roundsEugenio Crespo led from R3; +1.0-point edge over the runner-up.
Eugenio Crespo never relinquished the lead after R3; final gap +1.0 over the runner-up.
Eugenio Crespo beat Alfonso Uzcudun (White).
Eugenio Crespo 4 wins (R1–R4)Alfonso Uzcudun 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Eugenio Crespo | * | 1 | 1 | 1 |
| 2Alfonso Uzcudun | 0 | * | 1 | 1 |
| 3Ramiro Laurin | 0 | 0 | * | 0 |
| 4Miguel Angel Gomez | 0 | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Crespo, Eugenio | 2185 | ARG | +4N | +2B | +3N | +9B | =6N | +5B | +12N | 6.5 | 23.5 | 26.0 | 24.25 | 2314 | +13.4 |
| 2 | Uzcudun, Alfonso | 1955 | ARG | +5B | −1N | +15B | +13N | +3B | =6N | +4N | 5.5 | 23.5 | 25.5 | 17.25 | 2118 | +56.8 |
| 3 | Gomez, Miguel Angel | 1955 | ARG | +11N | +10B | −1B | +4N | −2N | =8B | =6B | 4.0 | 25.0 | 27.5 | 12.25 | 1966 | +5.2 |
| 4 | Laurin, Ramiro | 1812 | ARG | −1B | +13N | +7B | −3B | +8N | +10N | −2B | 4.0 | 25.0 | 27.0 | 11.00 | 1952 | +50.0 |
| 5 | De Los Santos, Jeremias | 1782 | ARG | −2N | −9B | +11N | +14B | +13N | −1N | =8B | 3.5 | 22.5 | 24.5 | 8.00 | 1853 | +22.0 |
| 6 | Pirola, Marcos | 2057 | ARG | +8B | +7N | F | F | =1B | =2B | =3N | 3.5 | 22.5 | 22.5 | 14.50 | 2116 | +8.4 |
| 7 | Sommariva, Rene | 1946 | ARG | +14N | −6B | −4N | −8B | +16B | =9N | +10B | 3.5 | 18.0 | 19.0 | 7.00 | 1813 | -23.0 |
| 8 | Nock, Pablo | 1796 | ARG | −6N | +14B | F | +7N | −4B | =3N | =5N | 3.0 | 20.5 | 20.5 | 9.25 | 1874 | +11.8 |
| 9 | Jaramillo, Walter | 1895 | ARG | −13B | +5N | +12B | −1N | F | =7B | =11N | 3.0 | 20.5 | 20.5 | 9.00 | 1854 | -7.0 |
| 10 | Rojo, Lautaro | 1819 | ARG | +16N | −3N | −13B | +15N | =12B | −4B | −7N | 2.5 | 18.0 | 19.0 | 4.25 | 1687 | -25.6 |
| 11 | Munoz, Mauricio | 1790 | ARG | −3B | +16N | −5B | −12N | =15B | =14N | =9B | 2.5 | 17.0 | 18.0 | 4.50 | 1680 | -21.6 |
| 12 | Pilquiman, Enzo | 1761 | ARG | F | F | −9N | +11B | =10N | +13B | −1B | 2.5 | 16.5 | 16.5 | 5.75 | 1865 | +11.6 |
| 13 | Huichulef, Enzo | 1660 | ARG | +9N | −4B | +10N | −2B | −5B | −12N | −16B | 2.0 | 21.0 | 22.0 | 5.50 | 1648 | -8.4 |
| 14 | Pistone, Mateo | 1691 | ARG | −7B | −8N | +16B | −5N | F | =11B | =15N | 2.0 | 15.5 | 15.5 | 3.25 | 1659 | -11.6 |
| 15 | Mansilla, Marcos | 1767 | ARG | F | F | −2N | −10B | =11N | +16N | =14B | 2.0 | 13.5 | 13.5 | 3.25 | 1703 | -18.4 |
| 16 | Moreno, Lucas | 1620 | ARG | −10B | −11B | −14N | F | −7N | −15B | +13N | 1.0 | 14.5 | 14.5 | 2.00 | 1506 | -31.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Uzcudun, AlfonsoARG+56.85.5 pts · #2
- 2Laurin, RamiroARG+50.04.0 pts · #3
- 3De Los Santos, JeremiasARG+22.03.5 pts · #7
- 1Moreno, LucasARG-31.61.0 pts · #16
- 2Rojo, LautaroARG-25.62.5 pts · #12
- 3Sommariva, ReneARG-23.03.5 pts · #6
- R1+235 Elo gap
- R3+159 Elo gap
- R4+150 Elo gap