Grand Prix Nacional de Ajedrez 2026-2027 (5to. Torneo)
Open SwissStandard
41 players participated in this 7-round tournament, held from 05 Jun 2026 to 07 Jun 2026 in Cobija, Bolivia. 4 titled players from 3 federations. Top 10 Elo average was 1916, and top seed was Daniel Carlo (🇧🇴 BOL, 2070).
Ronaldo Manuel Abarca Torres (🇵🇪 PER, 1878) won with 5.5/7, ahead of Daniel Carlo (5.5) and Pavel Andres Achocalla Huaipara (5.5). Abarca Torres won on tie-break after catching the field in the final round.
The biggest upset came in round 3: Cristian Zenon Perez Aduviri (1440) beat Romildo das Chagas Silva (1770), a +330-point gap.
Location
🇧🇴Cobija, Bolivia
Dates
05 Jun 2026 → 07 Jun 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Titled players · 4
CM×3
WFM×1
Federations · 3 represented
🇧🇴Bolivia×18
🇧🇷Brazil×8
🇵🇪Peru×2
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 3 players tied at 5.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
Co-leaders
18
7
4
2
2
1
3
R7 · TIEBREAK CLUSTER
3 players finish on 5.5/7. Abarca Torres takes the title on Buchholz Cut1 (27.5).
WIN STREAKS · 2 top finishers
Ronaldo Manuel Abarca Torres 3 wins (R1–R3)Pavel Andres Achocalla Huaipara 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Daniel Carlo | * | — | 1 | 0 |
| 2Ronaldo Manuel Abarca Torres | — | * | — | 1 |
| 3Pavel Andres Achocalla Huaipara | 0 | — | * | — |
| 4WFMGloria Luz Yepez Montenegro | 1 | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Abarca Torres, Ronaldo Manuel | 1878 | PER | +16B | +10N | +4B | −5B | =6N | +19B | +15N | 5.5 | 27.5 | 31.0 | 23.50 | 1946 | +12.4 |
| 2 | Carlo, Daniel | 2070 | BOL | +30B | =18N | +9B | +13N | −4B | +20N | +3B | 5.5 | 26.0 | 28.0 | 21.25 | 2079 | +2.4 |
| 3 | Achocalla Huaipara, Pavel Andres | 1920 | BOL | +23N | +21B | +14N | +12B | =5N | +18B | −2N | 5.5 | 25.5 | 28.5 | 20.50 | 2019 | +15.6 |
| 4 | Yepez Montenegro, Gloria LuzWFM | 1960 | BOL | +26N | +15B | −1N | +14B | +2N | =5B | =6N | 5.0 | 29.0 | 32.0 | 21.50 | 1953 | +3.0 |
| 5 | Yucra Valdes, Diego AlonsoCM | 1930 | BOL | +19B | +11N | +20B | +1N | =3B | =4N | −8B | 5.0 | 28.5 | 32.0 | 22.25 | 1986 | +26.8 |
| 6 | Veizaga Mamani, Kirsten Ivana | 1667 | BOL | +38N | −12B | +27N | +17B | =1B | +13N | =4B | 5.0 | 25.0 | 26.0 | 16.75 | 1943 | +71.2 |
| 7 | Mendoza Quispe, Yanfranco | 1578 | PER | −13B | +33N | +11B | =10N | −8B | +14N | +20B | 4.5 | 25.0 | 27.0 | 16.25 | 1857 | +84.0 |
| 8 | Ferrufino, BorisCM | 1941 | BOL | F | +28B | −12N | =24B | +7N | +9B | +5N | 4.5 | 24.0 | 26.0 | 18.50 | 1960 | +4.6 |
| 9 | Monroy Carrizo, JavierCM | 1863 | BOL | +27N | =25B | −2N | +28B | +22B | −8N | +17N | 4.5 | 23.0 | 26.0 | 14.50 | 1835 | -3.6 |
| 10 | Rodriguez Barrientos, Johan Raziel | 1705 | BOL | +32N | −1B | +23N | =7B | =17N | +24B | =18N | 4.5 | 23.0 | 25.0 | 13.75 | 1718 | +3.2 |
| 11 | Ramallo Aguilar, Ariadne Ricela | 1749 | BOL | +34N | −5B | −7N | +37B | +26N | +23B | =21N | 4.5 | 21.0 | 22.0 | 10.75 | 1611 | -15.6 |
| 12 | Oliveira, Reginaldo Sousa | 1838 | BRA | +29B | +6N | +8B | −3N | −18B | F | +19N | 4.0 | 25.5 | 28.5 | 16.00 | 1820 | +0.2 |
| 13 | Da Silva, Ricardo Moura | 1938 | BRA | +7N | =17B | +25N | −2B | =24N | −6B | +26N | 4.0 | 24.5 | 27.5 | 13.75 | 1753 | -28.0 |
| 14 | Da Silva, Elson Ruben Gomes | 1651 | BRA | +39N | +26B | −3B | −4N | +32N | −7B | +23N | 4.0 | 23.0 | 24.0 | 9.00 | 1569 | -19.6 |
| 15 | Oyola, Daniel | 1778 | BOL | +36B | −4N | −31N | +27B | +30N | +25B | −1B | 4.0 | 20.5 | 22.5 | 10.00 | 1664 | -30.8 |
| 16 | FIDE 3364887 | 0 | — | −1N | −32B | +38N | +34B | −25N | +37B | +30B | 4.0 | 15.5 | 16.5 | 6.00 | 1589 | 0.0 |
| 17 | De Avelar, Flavio Henrique | 1742 | BRA | +33B | =13N | =18B | −6N | =10B | +22N | −9B | 3.5 | 25.0 | 27.0 | 11.50 | 1640 | -14.0 |
| 18 | Araujo, Yvan Lukas Bertoldo | 1773 | BRA | F | =2B | =17N | +32B | +12N | −3N | =10B | 3.5 | 25.0 | 25.0 | 12.75 | 1855 | +20.4 |
| 19 | Perez Aduviri, Cristian Zenon | 1440 | BOL | −5N | +34B | +28N | +21B | =20B | −1N | −12B | 3.5 | 24.5 | 26.5 | 10.25 | 1743 | +74.4 |
| 20 | Solari Quelali, Valeska Tiana | 1818 | BOL | +41N | +24B | −5N | +31B | =19N | −2B | −7N | 3.5 | 23.5 | 23.5 | 6.75 | 1646 | -52.0 |
| 21 | Torrico Castro, Raikonen Dairo | 1692 | BOL | +37B | −3N | +29B | −19N | +31N | F | =11B | 3.5 | 22.5 | 23.5 | 8.25 | 1585 | -23.6 |
| 22 | Morales Escobar, Alexander Jose | 0 | BOL | F | +41B | +30N | =25B | −9N | −17B | +31N | 3.5 | 18.0 | 18.0 | 5.50 | 1690 | 0.0 |
| 23 | Alejo Paxi, Axcel Alejandro | 0 | BOL | −3B | +37N | −10B | +39N | +27B | −11N | −14B | 3.0 | 22.5 | 23.5 | 5.00 | 956 | 0.0 |
| 24 | Souza , Neurismar Da Rocha | 1621 | BRA | F | −20N | +36B | =8N | =13B | −10N | +32B | 3.0 | 22.0 | 24.0 | 8.25 | 1658 | +2.2 |
| 25 | De Araujo, Antonio Marcos Diniz | 1652 | BRA | +40B | =9N | −13B | =22N | +16B | −15N | −33B | 3.0 | 22.0 | 22.0 | 8.00 | 1587 | -4.4 |
| 26 | Quispe Moreno, Lev Dylan | 1590 | BOL | −4B | −14N | +33B | +36N | −11B | +35N | −13B | 3.0 | 21.5 | 23.5 | 6.00 | 1025 | -36.8 |
| 27 | FIDE 3364895 | 0 | — | −9B | +40N | −6B | −15N | −23N | +39B | +35B | 3.0 | 19.5 | 19.5 | 3.00 | 969 | 0.0 |
| 28 | Silva, Romildo das Chagas | 1770 | BRA | +35B | −8N | −19B | −9N | +39B | F | +34N | 3.0 | 18.5 | 19.5 | 5.00 | 948 | -30.4 |
| 29 | FIDE 3364909 | 0 | — | −12N | +38B | −21N | −30B | −33N | +40B | +37N | 3.0 | 13.5 | 13.5 | 2.00 | 914 | 0.0 |
| 30 | Saire Benitez, Leandro Alex | 1611 | BOL | −2N | F | −22B | +29N | −15B | +34B | −16N | 2.0 | 22.0 | 22.0 | 5.00 | 1095 | -14.4 |
| 31 | Rojas Martinez, Nelson David | 1580 | BOL | F | +35N | +15B | −20N | −21B | F | −22B | 2.0 | 21.0 | 23.0 | 6.00 | 1638 | +8.4 |
| 32 | FIDE 3374521 | 0 | — | −10B | +16N | +35B | −18N | −14B | F | −24N | 2.0 | 21.0 | 23.0 | 6.00 | 888 | 0.0 |
| 33 | FIDE 3365093 | 0 | — | −17N | −7B | −26N | F | +29B | F | +25N | 2.0 | 20.0 | 20.0 | 6.00 | 1448 | 0.0 |
| 34 | FIDE 3374947 | 0 | — | −11B | −19N | +40B | −16N | +38B | −30N | −28B | 2.0 | 18.0 | 18.0 | 1.00 | 843 | 0.0 |
| 35 | FIDE 3365026 | 0 | — | −28N | −31B | −32N | +38B | +40N | −26B | −27N | 2.0 | 14.0 | 14.0 | 1.00 | 847 | 0.0 |
| 36 | FIDE 3364933 | 0 | — | −15N | +39B | −24N | −26B | −37N | −38N | +40B | 2.0 | 13.0 | 13.0 | 1.00 | 863 | 0.0 |
| 37 | FIDE 3371611 | 0 | — | −21N | −23B | F | −11N | +36B | −16N | −29B | 1.0 | 20.0 | 20.0 | 2.00 | 921 | 0.0 |
| 38 | FIDE 3365166 | 0 | — | −6B | −29N | −16B | −35N | −34N | +36B | −39N | 1.0 | 18.0 | 19.0 | 2.00 | 867 | 0.0 |
| 39 | FIDE 3373827 | 0 | — | −14B | −36N | F | −23B | −28N | −27N | +38B | 1.0 | 16.0 | 16.0 | 1.00 | 911 | 0.0 |
| 40 | FIDE 3374920 | 0 | — | −25N | −27B | −34N | F | −35B | −29N | −36N | 0.0 | 15.0 | 15.0 | 0.00 | 852 | 0.0 |
| 41 | FIDE 3374939 | 0 | — | −20B | −22N | F | F | F | F | F | 0.0 | 10.0 | 10.0 | 0.00 | 1018 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Mendoza Quispe, YanfrancoPER+84.04.5 pts · #8
- 2Perez Aduviri, Cristian ZenonBOL+74.43.5 pts · #13
- 3Veizaga Mamani, Kirsten IvanaBOL+71.25.0 pts · #10
Top rating losers
- 1Solari Quelali, Valeska TianaBOL-52.03.5 pts · #16
- 2Quispe Moreno, Lev DylanBOL-36.83.0 pts · #29
- 3Oyola, DanielBOL-30.84.0 pts · #17
Biggest upsets
- R3+330 Elo gap
- R6+271 Elo gap
- R4+252 Elo gap