R&R Trading Company 2025
Open SwissStandard
53 players participated in this 6-round tournament, held from 20 Aug 2025 to 24 Sept 2025 in Guatemala, Guatemala. 5 titled players from 2 federations. Top 10 Elo average was 1940, and top seed was Cesar Augusto Blanco Gramajo (🇬🇹 GUA, CM, 2069).
Dominic Voisard (🇬🇹 GUA, 1848) won with 5.5/6, ahead of Rodolfo Enrique Paxtor Chiguichon (5.0) and Francisco J. Cruz Vargas (4.5). Voisard won solo starting round 4.
The biggest upset came in round 5: Fiorella Jasmine Garcia Medina (WCM, 1694) beat Juan Carlos De Leon Calderon (1992), a +298-point gap.
Location
🇬🇹Guatemala, Guatemala
Dates
20 Aug 2025 → 24 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Titled players · 5
CM×4
WCM×1
Federations · 2 represented
🇬🇹Guatemala×50
🇩🇪Germany×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsDominic Voisard led from R4; +0.5-point edge over the runner-up.
Co-leaders
21
7
4
1
1
1
R4–R6 · LEAD HELD
Dominic Voisard held the sole lead from R4 through R6 without losing it.
WIN STREAKS · 3 top finishers
Dominic Voisard 4 wins (R1–R4)CM Rodolfo Enrique Paxtor Chiguichon 5 wins (R1–R6)Francisco J. Cruz Vargas 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Dominic Voisard | * | — | — | — |
| 2CMRodolfo Enrique Paxtor Chiguichon | — | * | — | — |
| 3Francisco J. Cruz Vargas | — | — | * | ½ |
| 4Felix Fernando Ramos Barrios | — | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Voisard, Dominic | 1848 | GUA | +40B | +33N | +32B | +17N | =8N | +5B | 5.5 | 13.0 | 14.0 | 12.25 | 2149 | +32.0 |
| 2 | Paxtor Chiguichon, Rodolfo EnriqueCM | 2031 | GUA | +35N | +16B | F | +13N | +22B | +12N | 5.0 | 13.0 | 14.5 | 12.50 | 2638 | +45.9 |
| 3 | Cruz Vargas, Francisco J. | 1958 | GUA | +23B | +42N | +24B | =4N | −12N | +6B | 4.5 | 15.5 | 16.5 | 11.25 | 1989 | +5.4 |
| 4 | Ramos Barrios, Felix Fernando | 1818 | GUA | +39N | +5B | +43N | =3B | −6N | +41B | 4.5 | 14.5 | 15.5 | 9.25 | 1900 | +26.4 |
| 5 | Garcia Medina, Fiorella JasmineWCM | 1694 | GUA | +50B | −4N | +33B | +24N | +32B | −1N | 4.0 | 15.0 | 15.0 | 5.00 | 1877 | +32.6 |
| 6 | Bianchi Azurdia, Gerardo | 1742 | GUA | −33B | +52N | +26B | +39N | +4B | −3N | 4.0 | 13.5 | 13.5 | 7.50 | 1935 | +19.8 |
| 7 | Morales R., Enio de Jesus | 1728 | GUA | +36N | F | +40B | F | +25N | +39B | 4.0 | 9.5 | 10.5 | 5.50 | 2357 | +33.2 |
| 8 | Lopez Escobar, Jose DavidCM | 1945 | GUA | +26N | +21B | +18N | F | =1B | F | 3.5 | 14.5 | 14.5 | 9.75 | 2084 | +20.4 |
| 9 | Cordero Medrano, Cristopher | 1657 | GUA | −12B | +25N | =14N | +46B | −13B | +19N | 3.5 | 13.5 | 14.5 | 7.00 | 1751 | +22.4 |
| 10 | Sigui Gil, Norman | 1666 | GUA | −32N | +34B | +27N | −14B | +50N | =20B | 3.5 | 10.5 | 10.5 | 4.75 | 1757 | +11.2 |
| 11 | Cordero Medrano, Dennis Matheus | 1759 | GUA | +34N | F | +23B | =41N | +29B | F | 3.5 | 10.0 | 11.0 | 6.00 | 1934 | +26.8 |
| 12 | Monroy Lopez, Gustavo AdolfoCM | 1975 | GUA | +9N | −18B | +35N | F | +3B | −2B | 3.0 | 19.5 | 21.0 | 9.50 | 1891 | -16.8 |
| 13 | Aguirre B., Justo Enrique | 1844 | GUA | F | +15B | +46N | −2B | +9N | F | 3.0 | 16.0 | 16.0 | 7.50 | 1893 | +4.2 |
| 14 | Ayerdi Hurtado, Cynthia Maria | 1800 | GUA | +44N | F | =9B | +10N | =17B | F | 3.0 | 12.5 | 13.5 | 7.50 | 1836 | +7.2 |
| 15 | Giron Ruiz, Julio Roberto | 0 | GUA | +28B | −13N | −20B | −26N | +51B | +34N | 3.0 | 11.0 | 11.0 | 3.50 | 1662 | 0.0 |
| 16 | Lozano, Ricardo | 1813 | GUA | +45B | −2N | −17B | +40N | F | +50B | 3.0 | 10.5 | 10.5 | 2.00 | 1719 | -9.4 |
| 17 | De Leon Gonzalez, Jairo Aron | 1700 | GUA | F | +47B | +16N | −1B | =14N | −22N | 2.5 | 14.5 | 14.5 | 5.50 | 1781 | +11.0 |
| 18 | Rodriguez M, Luis Roberto | 1781 | GUA | +25B | +12N | −8B | =20N | F | F | 2.5 | 13.0 | 13.0 | 6.25 | 1882 | +11.0 |
| 19 | Zarat Garcia, Diego Enrique | 0 | GUA | −42B | −23N | =45B | +28N | +35N | −9B | 2.5 | 10.0 | 11.0 | 4.00 | 1607 | 0.0 |
| 20 | Ortega Zelada, Victor Aron | 1708 | GUA | F | =41B | +15N | =18B | F | =10N | 2.5 | 10.0 | 10.0 | 6.50 | 1676 | -2.6 |
| 21 | Lopez Escobar, Daniel Alejandro | 1738 | GUA | +53B | −8N | +37B | =32N | F | F | 2.5 | 7.5 | 7.5 | 2.25 | 1845 | +15.6 |
| 22 | Palencia Alvarado, Julio Roberto | 1889 | GUA | +51B | F | F | F | −2N | +17B | 2.0 | 20.0 | 20.0 | 2.50 | 1905 | +2.0 |
| 23 | Vasquez Linares, Emerson Baudilio | 1650 | GUA | −3N | +19B | −11N | +44B | F | F | 2.0 | 15.0 | 16.0 | 3.50 | 1630 | -5.2 |
| 24 | Juarez B., Samuel G. | 1850 | GUA | +38N | +30B | −3N | −5B | F | F | 2.0 | 14.0 | 15.0 | 3.50 | 1742 | -22.4 |
| 25 | Cordero Medrano, Marlyn Elizabeth | 1520 | GUA | −18N | −9B | +36N | F | −7B | +37B | 2.0 | 13.0 | 14.0 | 3.00 | 1498 | -4.8 |
| 26 | Lopez Hernandez, Jose Daniel | 1624 | GUA | −8B | +53N | −6N | +15B | −30N | F | 2.0 | 12.5 | 12.5 | 3.00 | 999 | -34.0 |
| 27 | Jui, Marlow | 1804 | GUA | F | =37N | −10B | +47B | =38N | F | 2.0 | 9.5 | 9.5 | 2.50 | 1606 | -20.4 |
| 28 | Escobar Quan, Eva Rocio | 1702 | GUA | −15N | −39B | −34N | −19B | +49B | +40N | 2.0 | 9.0 | 9.5 | 1.50 | 1418 | -44.8 |
| 29 | Leon Aguilar, Alvaro Jose | 0 | GUA | F | F | +51N | +43B | −11N | F | 2.0 | 7.5 | 7.5 | 1.00 | 1814 | +11.0 |
| 30 | Castellanos, Humberto Arturo | 1711 | GUA | +49B | −24N | F | F | +26B | F | 2.0 | 5.5 | 5.5 | 2.50 | 1737 | +2.8 |
| 31 | Rose, Sven | 1687 | GER | −48N | +44B | +50N | F | F | F | 2.0 | 5.0 | 5.0 | 1.00 | 1808 | +4.4 |
| 32 | De Leon Calderon, Juan Carlos | 1992 | GUA | +10B | F | −1N | =21B | −5N | F | 1.5 | 19.0 | 20.0 | 4.75 | 1650 | -68.8 |
| 33 | Orozco Montufar, Pablo | 0 | GUA | +6N | −1B | −5N | =35B | F | F | 1.5 | 16.5 | 17.5 | 4.75 | 1652 | 0.0 |
| 34 | Cordero Valdez, Cornelio | 1480 | GUA | −11B | −10N | +28B | =45N | −43N | −15B | 1.5 | 13.0 | 14.0 | 2.50 | 1528 | +10.0 |
| 35 | Zamora Ruiz, Victor A. | 1669 | GUA | −2B | +45N | −12B | =33N | −19B | F | 1.5 | 13.0 | 13.0 | 1.75 | 1731 | +4.4 |
| 36 | Cos Miranda, Josue Rodrigo | 0 | GUA | −7B | −40N | −25B | =49N | +45B | F | 1.5 | 9.5 | 10.0 | 1.25 | 1405 | 0.0 |
| 37 | Diaz Reyes, Dario | 1598 | GUA | F | =27B | −21N | F | +40B | −25N | 1.5 | 7.5 | 7.5 | 2.00 | 1575 | -3.6 |
| 38 | Contreras Rivas, Valery Noemy | 1602 | GUA | −24B | +49N | F | F | =27B | F | 1.5 | 4.5 | 4.5 | 1.50 | 1634 | +2.8 |
| 39 | Chua, Cirilo | 1566 | GUA | −4B | +28N | F | −6B | F | −7N | 1.0 | 17.5 | 19.5 | 2.00 | 1555 | -2.8 |
| 40 | Arenales F., Jose | 1584 | GUA | −1N | +36B | −7N | −16B | −37N | −28B | 1.0 | 16.0 | 17.5 | 1.50 | 938 | -30.4 |
| 41 | Sepe, Ricardo | 1583 | GUA | F | =20N | F | =11B | F | −4N | 1.0 | 14.0 | 14.0 | 3.00 | 1637 | +3.8 |
| 42 | Pineda D., Raul Anibal | 1742 | GUA | +19N | −3B | F | F | F | F | 1.0 | 11.0 | 11.0 | 2.50 | 1158 | -4.6 |
| 43 | Solares Godoy, Pablo Andres | 1697 | GUA | F | F | −4B | −29N | +34B | F | 1.0 | 11.0 | 11.0 | 1.50 | 1534 | -13.0 |
| 44 | Rodriguez, Pablo Fernando | 1547 | GUA | −14B | −31N | +49B | −23N | F | F | 1.0 | 10.0 | 10.5 | 0.50 | 912 | -34.4 |
| 45 | Cruz Balcarcel, Natalia Estefania | 1561 | GUA | −16N | −35B | =19N | =34B | −36N | F | 1.0 | 10.0 | 10.0 | 2.00 | 1381 | -26.0 |
| 46 | Dubon M., Carlos Giovanni | 1616 | GUA | F | F | −13B | −9N | +52B | F | 1.0 | 8.0 | 8.0 | 0.00 | 951 | -13.0 |
| 47 | Diaz Ejcalon, Joseph Steven | 1557 | GUA | F | −17N | +52B | −27N | F | F | 1.0 | 7.0 | 7.0 | 0.00 | 952 | -20.0 |
| 48 | Blanco Gramajo, Cesar AugustoCM | 2069 | GUA | +31B | F | F | F | F | F | 1.0 | 5.0 | 5.0 | 2.00 | 2487 | +1.8 |
| 49 | Garcia Medina, Valentina Marie | 0 | GUA | −30N | −38B | −44N | =36B | −28N | F | 0.5 | 8.0 | 8.0 | 0.75 | 841 | 0.0 |
| 50 | FIDE 7309422 | 0 | — | −5N | F | −31B | F | −10B | −16N | 0.0 | 14.0 | 14.0 | 0.00 | 915 | 0.0 |
| 51 | Abarca Ochoa, Bryan R. | 1610 | GUA | −22N | F | −29B | F | −15N | F | 0.0 | 8.0 | 8.0 | 0.00 | 984 | -11.4 |
| 52 | Perez Chavez, Josue Porfirio | 0 | GUA | F | −6B | −47N | F | −46N | F | 0.0 | 7.5 | 7.5 | 0.00 | 838 | 0.0 |
| 53 | FIDE 7309457 | 0 | — | −21N | −26B | F | F | F | F | 0.0 | 4.5 | 4.5 | 0.00 | 881 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Paxtor Chiguichon, Rodolfo EnriqueCMGUA+45.95.0 pts · #1
- 2Morales R., Enio de JesusGUA+33.24.0 pts · #11
- 3Garcia Medina, Fiorella JasmineWCMGUA+32.64.0 pts · #18
Top rating losers
- 1De Leon Calderon, Juan CarlosGUA-68.81.5 pts · #29
- 2Escobar Quan, Eva RocioGUA-44.82.0 pts · #40
- 3Rodriguez, Pablo FernandoGUA-34.41.0 pts · #49
Biggest upsets
- R5+298 Elo gap
- R3+222 Elo gap
- R2+194 Elo gap