III Open de Ajedrez "Laura Aguado Boto" Rondas 4-6
Open SwissStandard
51 players participated in this 6-round tournament, held from 10 May 2026 to 24 May 2026 in Pozuelo de Alarcon (Madrid), Spain. 3 federations represented. Top 10 Elo average was 1947, and top seed was Ariel Machado La Rosa (🇨🇺 CUB, 2203).
Ariel Machado La Rosa (🇨🇺 CUB, 2203) won with 2.5/6, ahead of Jorge Luis Gil Silva (2.5) and Juan Felipe Calles Gutierrez (2.5). Machado La Rosa won on tie-break after catching the field in the final round.
The biggest upset came in round 5: Manuel Prieto Diez (1619) beat Juan De Zulueta Miranda (1849), a +230-point gap.
Location
🇪🇸Pozuelo de Alarcon (Madrid), Spain
Dates
10 May 2026 → 24 May 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Federations · 3 represented
🇪🇸Spain×45
🇨🇺Cuba×2
🇲🇽Mexico×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTight race until R6; 5 players tied at 2.5/6, decided on Buchholz. Title race narrowed from 17 co-leaders at R4 to 5 at the finish.
Co-leaders
57
57
57
17
7
5
R6 · TIEBREAK CLUSTER
5 players finish on 2.5/6. Machado La Rosa takes the title on Buchholz Cut1 (6.0).
R4 · LATE SURGE
Ariel Machado La Rosa was #18 at R4, climbed to #1 over the final stretch.
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ariel Machado La Rosa | * | — | ½ | — |
| 2Juan Felipe Calles Gutierrez | — | * | — | — |
| 3Jorge Luis Gil Silva | ½ | — | * | — |
| 4Ramon Casas Rios | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Machado La Rosa, Ariel | 2203 | CUB | F | F | F | =2N | +21B | +11N | 2.5 | 6.0 | 6.0 | 4.75 | 2249 | +2.8 |
| 2 | Gil Silva, Jorge Luis | 2063 | CUB | F | F | F | =1B | +29N | +7B | 2.5 | 5.5 | 5.5 | 4.25 | 2241 | +14.0 |
| 3 | Calles Gutierrez, Juan Felipe | 1674 | ESP | F | F | F | +47N | +42B | =4N | 2.5 | 2.5 | 2.5 | 1.25 | 1871 | +15.2 |
| 4 | Li, Renbo | 1616 | ESP | F | F | F | +44N | +43B | =3B | 2.5 | 2.5 | 2.5 | 1.25 | 1804 | +19.6 |
| 5 | Casas Rios, Ramon | 1871 | ESP | F | F | F | +45B | =19N | +40B | 2.5 | 2.0 | 2.0 | 1.25 | 1930 | +3.0 |
| 6 | Hurtado San Jose, Lorenzo | 1554 | ESP | F | F | F | +15B | −17N | +25B | 2.0 | 5.0 | 5.0 | 3.00 | 1857 | +39.2 |
| 7 | Alvarez Guerrero, Dylan | 1924 | ESP | F | F | F | +26N | +23B | −2N | 2.0 | 5.0 | 5.0 | 2.50 | 2001 | +6.8 |
| 8 | Toledo Aguirre, Gonzalo | 1933 | ESP | F | F | F | =40N | =12B | +14N | 2.0 | 4.5 | 4.5 | 3.25 | 1887 | -1.8 |
| 9 | Prieto Diez, Manuel | 1619 | ESP | F | F | F | =20N | +36B | =19B | 2.0 | 4.0 | 4.0 | 2.50 | 1957 | +26.8 |
| 10 | Alonso Ibanez, Jose | 1553 | ESP | F | F | F | =22N | =24N | +27B | 2.0 | 4.0 | 4.0 | 2.50 | 1803 | +6.4 |
| 11 | Ayllon Redondo, Asier | 1816 | ESP | F | F | F | +42N | +20B | −1B | 2.0 | 4.0 | 4.0 | 1.50 | 2008 | +16.8 |
| 12 | Romero Taranilla, Guillermo | 1747 | ESP | F | F | F | +46B | =8N | =28B | 2.0 | 3.0 | 3.0 | 1.50 | 1932 | +14.4 |
| 13 | FIDE 553008286 | 0 | — | F | F | F | +?N | +22B | −20N | 2.0 | 3.0 | 3.0 | 1.50 | 1812 | 0.0 |
| 14 | Forteza Ribot, Joan | 1656 | ESP | F | F | F | +48N | +25N | −8B | 2.0 | 3.0 | 3.0 | 1.00 | 1844 | +15.6 |
| 15 | Cortijo Manso, Luis | 1662 | ESP | F | F | F | −6N | +31B | +45N | 2.0 | 3.0 | 3.0 | 1.00 | 1709 | +4.6 |
| 16 | Carbo de Haya, Jaime | 1680 | ESP | F | F | F | +35B | F | +26N | 2.0 | 2.0 | 2.0 | 2.00 | 2420 | +17.0 |
| 17 | Bartolome Benito, Alejandro | 1924 | ESP | F | F | F | +43N | +6B | F | 2.0 | 2.0 | 2.0 | 2.00 | 2385 | +10.8 |
| 18 | Tang, Fuchen | 1582 | ESP | F | F | F | +27B | −30N | +44B | 2.0 | 2.0 | 2.0 | 1.00 | 712 | -21.6 |
| 19 | Perez Alvarez, Eduardo | 1817 | ESP | F | F | F | =21N | =5B | =9N | 1.5 | 6.0 | 6.0 | 3.00 | 1819 | -0.6 |
| 20 | Iglesias Montes, Lucas | 1843 | ESP | F | F | F | =9B | −11N | +13B | 1.5 | 6.0 | 6.0 | 3.00 | 1561 | -26.4 |
| 21 | Lobato Rivero, Carlos | 1965 | ESP | F | F | F | =19B | −1N | +32B | 1.5 | 5.0 | 5.0 | 1.75 | 1882 | -5.8 |
| 22 | Blazquez Carracedo, Miguel | 1869 | ESP | F | F | F | =10B | −13N | +41B | 1.5 | 4.5 | 4.5 | 1.50 | 1542 | -12.8 |
| 23 | Kibrit Arakanchi, Teofilo | 1768 | MEX | F | F | F | =28B | −7N | +33N | 1.5 | 4.0 | 4.0 | 1.50 | 1825 | -12.8 |
| 24 | Graus Morales, Javier | 0 | ESP | F | F | F | F | =10B | +42N | 1.5 | 2.0 | 2.0 | 1.00 | 1601 | 0.0 |
| 25 | Aguado Boto, Laura | 1642 | ESP | F | F | F | +38N | −14B | −6N | 1.0 | 5.0 | 5.0 | 1.00 | 1535 | -9.0 |
| 26 | Yaniz Lana, Francisco Javier | 1655 | ESP | F | F | F | −7B | +49N | −16B | 1.0 | 4.0 | 4.0 | 0.00 | 1577 | -7.0 |
| 27 | Marquez Polo, Sebastian | 0 | ESP | F | F | F | −18N | +?B | −10N | 1.0 | 4.0 | 4.0 | 0.00 | 742 | 0.0 |
| 28 | Prieto Vilas, Manuel | 1870 | ESP | F | F | F | =23N | F | =12N | 1.0 | 3.5 | 3.5 | 1.75 | 1833 | -3.6 |
| 29 | Duran Abia, Lucas | 1566 | ESP | F | F | F | +33N | −2B | F | 1.0 | 3.5 | 3.5 | 1.00 | 1850 | +10.4 |
| 30 | Ismatov, Aleksandr | 1451 | ESP | F | F | F | F | +18B | F | 1.0 | 3.0 | 3.0 | 2.00 | 2342 | +21.6 |
| 31 | Fraile Gonzalez, Juan Jose | 1517 | ESP | F | F | F | F | −15N | +37B | 1.0 | 3.0 | 3.0 | 1.00 | 1590 | +4.4 |
| 32 | De Blas Moreno, Rafael | 1654 | ESP | F | F | F | F | +34B | −21N | 1.0 | 2.5 | 2.5 | 1.00 | 1727 | +9.6 |
| 33 | Lopez Martin, Francisco | 1666 | ESP | F | F | F | −29B | +46N | −23B | 1.0 | 2.5 | 2.5 | 0.00 | 1628 | -1.6 |
| 34 | Lopez Pereira, Irene | 1436 | ESP | F | F | F | +37B | −32N | F | 1.0 | 2.0 | 2.0 | 1.00 | 1567 | +8.8 |
| 35 | Lopez Sanchez, Angel 1968 | 1578 | ESP | F | F | F | −16N | +47B | F | 1.0 | 2.0 | 2.0 | 0.00 | 1618 | +1.6 |
| 36 | De Zulueta Miranda, Juan | 1849 | ESP | F | F | F | F | −9N | +46B | 1.0 | 2.0 | 2.0 | 0.00 | 1615 | -11.6 |
| 37 | Centeno Mateos, Domingo | 1542 | ESP | F | F | F | −34N | +50B | −31N | 1.0 | 2.0 | 2.0 | 0.00 | 696 | -21.8 |
| 38 | Martin Santos, Ignacio | 1743 | ESP | F | F | F | −25B | F | +43N | 1.0 | 1.0 | 1.0 | 0.00 | 1608 | -7.2 |
| 39 | Abad Miranda, Carmen | 1645 | ESP | F | F | F | F | F | +51B | 1.0 | 1.0 | 1.0 | 0.00 | 2263 | +8.4 |
| 40 | Rodriguez Aranda, Juan Pablo | 0 | ESP | F | F | F | =8B | F | −5N | 0.5 | 4.5 | 4.5 | 1.00 | 1714 | 0.0 |
| 41 | Nieto Yubero, Julio | 0 | ESP | F | F | F | −?N | =?B | −22N | 0.5 | 1.5 | 1.5 | 0.00 | 1377 | 0.0 |
| 42 | De Diego Aguero, Juan Jose | 1605 | ESP | F | F | F | −11B | −3N | −24B | 0.0 | 6.0 | 6.0 | 0.00 | 977 | -12.4 |
| 43 | Gonzalez Arganda, Ernesto | 1556 | ESP | F | F | F | −17B | −4N | −38B | 0.0 | 5.5 | 5.5 | 0.00 | 951 | -16.4 |
| 44 | FIDE 553065573 | 0 | — | F | F | F | −4B | −?N | −18N | 0.0 | 4.5 | 4.5 | 0.00 | 785 | 0.0 |
| 45 | Cadenas Rodriguez, Gonzalo | 1636 | ESP | F | F | F | −5N | F | −15B | 0.0 | 4.5 | 4.5 | 0.00 | 964 | -14.0 |
| 46 | Sanchez Galvez, Fernando | 1595 | ESP | F | F | F | −12N | −33B | −36N | 0.0 | 4.0 | 4.0 | 0.00 | 944 | -40.0 |
| 47 | Sanchez-Covisa Villa, Joaquin | 1567 | ESP | F | F | F | −3B | −35N | F | 0.0 | 3.5 | 3.5 | 0.00 | 822 | -16.6 |
| 48 | Almansa Lapeira, Jose Manuel | 1577 | ESP | F | F | F | −14B | F | F | 0.0 | 2.0 | 2.0 | 0.00 | 837 | -16.4 |
| 49 | Navarro Escobedo, Daniel | 1429 | ESP | F | F | F | F | −26B | F | 0.0 | 1.0 | 1.0 | 0.00 | 852 | -10.0 |
| 50 | FIDE 535023112 | 0 | — | F | F | F | −?N | −37N | F | 0.0 | 1.0 | 1.0 | 0.00 | 711 | 0.0 |
| 51 | Larriba De La Rubia, Emilio | 1454 | ESP | F | F | F | F | F | −39N | 0.0 | 1.0 | 1.0 | 0.00 | 897 | -8.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Hurtado San Jose, LorenzoESP+39.22.0 pts · #4
- 2Prieto Diez, ManuelESP+26.82.0 pts · #12
- 3Ismatov, AleksandrESP+21.61.0 pts · #31
Top rating losers
- 1Sanchez Galvez, FernandoESP-40.00.0 pts · #39
- 2Iglesias Montes, LucasESP-26.41.5 pts · #34
- 3Centeno Mateos, DomingoESP-21.81.0 pts · #47
Biggest upsets
- R5+230 Elo gap
- R5+131 Elo gap
- R4+108 Elo gap