Torneo Clasificatorio de Cuarta Division, Liberia 2025
Open SwissStandard
50 players participated in this 7-round tournament, held from 05 Jul 2025 to 06 Jul 2025 in Liberia, Costa Rica. Top 10 Elo average was 1541, and top seed was Ian Sebastian Charpentier Badilla (🇨🇷 CRC, 1622).
Santiago Rodriguez Gonzalez (🇨🇷 CRC, 1553) won with 7.0/7, ahead of Mario Alejandro Cespedes Badilla (6.0) and Mario Alejandro Montenegro Rojas (6.0). Rodriguez Gonzalez won solo starting round 6.
The biggest upset came in round 4: Nataly Crisbeth Charaja Umana (1423) beat Ian Sebastian Charpentier Badilla (1622), a +199-point gap.
Location
🇨🇷Liberia, Costa Rica
Dates
05 Jul 2025 → 06 Jul 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Federations · 1 represented
🇨🇷Costa Rica×27
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsSantiago Rodriguez Gonzalez led from R6; +1.0-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.
Co-leaders
27
14
7
4
2
1
1
R6–R7 · LEAD HELD
Santiago Rodriguez Gonzalez never relinquished the lead after R6; final gap +1.0 over the runner-up.
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Santiago Rodriguez Gonzalez beat Mario Alejandro Montenegro Rojas (White).
WIN STREAKS · 3 top finishers
Santiago Rodriguez Gonzalez 7 wins (R1–R7)Mario Alejandro Montenegro Rojas 4 wins (R4–R7)Mario Alejandro Cespedes Badilla 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Santiago Rodriguez Gonzalez | * | 1 | 1 | 1 |
| 2Mario Alejandro Montenegro Rojas | 0 | * | — | — |
| 3Mario Alejandro Cespedes Badilla | 0 | — | * | 1 |
| 4Randall Alonso Gonzalez Masis | 0 | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Rodriguez Gonzalez, Santiago | 1553 | CRC | +42B | +29N | +3B | +4N | +2B | +5B | +7N | 7.0 | 30.0 | 32.0 | 32.00 | 2337 | +53.6 |
| 2 | Cespedes Badilla, Mario Alejandro | 0 | CRC | +12B | +35N | +6B | +20N | −1N | +4B | +5N | 6.0 | 31.0 | 34.0 | 27.00 | 1606 | 0.0 |
| 3 | Montenegro Rojas, Mario Alejandro | 1548 | CRC | +49N | +19B | −1N | +28B | +10N | +8B | +9N | 6.0 | 29.0 | 29.0 | 22.00 | 1757 | +51.6 |
| 4 | Gonzalez Masis, Randall Alonso | 0 | CRC | +11N | +18B | +10N | −1B | +17N | −2N | +14B | 5.0 | 31.5 | 35.5 | 22.50 | 1555 | 0.0 |
| 5 | Gonzalez Alfaro, John Alberto | 1586 | CRC | +47B | +26N | +13B | +7N | +9B | −1N | −2B | 5.0 | 31.5 | 32.5 | 19.50 | 1598 | -4.0 |
| 6 | Leguizamon Santamaria, Daniel A | 1552 | CRC | +27N | +14B | −2N | +11B | +19N | −7B | +18N | 5.0 | 28.5 | 32.0 | 21.00 | 1592 | +2.8 |
| 7 | Peraza Cedrez, Daniel | 1435 | CRC | +37N | +34B | +17N | −5B | +16N | +6N | −1B | 5.0 | 28.0 | 30.5 | 18.50 | 1657 | +29.8 |
| 8 | Charpentier Badilla, Ian Sebastian | 1622 | CRC | +32B | +22N | +23B | −9N | +29B | −3N | +20B | 5.0 | 26.0 | 29.0 | 18.00 | 676 | -55.2 |
| 9 | Charaja Umana, Nataly Crisbeth | 1423 | CRC | +43N | +39B | +16N | +8B | −5N | +25B | −3B | 5.0 | 25.5 | 27.5 | 16.50 | 1597 | +39.6 |
| 10 | Munoz Aguilar, Ismael | 1457 | CRC | +36N | +45B | −4B | +12N | −3B | +34N | +23B | 5.0 | 25.5 | 26.5 | 15.50 | 748 | -15.2 |
| 11 | Angulo Fernandez, Erick | 0 | CRC | −4B | +33N | +31B | −6N | +24B | +21N | +?N | 5.0 | 24.0 | 24.0 | 14.00 | 1535 | 0.0 |
| 12 | Espinoza Leal, Jowell Darnell | 0 | CRC | −2N | +?B | +18N | −10B | +?B | +19N | +26B | 5.0 | 22.5 | 22.5 | 11.50 | 1494 | 0.0 |
| 13 | Garcia Valdez, Xochilth Fernanda | 0 | CRC | +46N | +38B | −5N | =36B | =14N | +28B | +16N | 5.0 | 21.0 | 22.0 | 13.50 | 1608 | 0.0 |
| 14 | FIDE 6571972 | 0 | — | +30B | −6N | +44B | +?N | =13B | +26N | −4N | 4.5 | 23.0 | 23.0 | 10.50 | 752 | 0.0 |
| 15 | Rosales Garcia, Alex Alfredo | 0 | CRC | =20N | +?B | −?N | −?B | +45N | +39B | +25N | 4.5 | 10.5 | 10.5 | 8.50 | 757 | 0.0 |
| 16 | Torres Angulo, Gary Esteban | 1558 | CRC | +50B | +21N | −9B | +23N | −7B | +27N | −13B | 4.0 | 26.5 | 26.5 | 11.50 | 1301 | -45.6 |
| 17 | Jimenez Noguera, Matias | 1575 | CRC | +40B | +24N | −7B | +30N | −4B | −23N | +35B | 4.0 | 24.0 | 26.0 | 12.00 | 636 | -27.6 |
| 18 | Salazar Espinoza, Mauricio | 1444 | CRC | +33B | −4N | −12B | +48N | +30B | +31N | −6B | 4.0 | 24.0 | 24.0 | 9.00 | 752 | -14.0 |
| 19 | Cerdas Hurtado, Jose Angel | 1519 | CRC | +44B | −3N | +32B | +38N | −6B | −12B | +41N | 4.0 | 23.0 | 24.5 | 8.50 | 750 | -36.4 |
| 20 | Saravia Osorio, Kenny Josue | 0 | CRC | =15B | +31N | +21B | −2B | =?N | +?B | −8N | 4.0 | 22.5 | 22.5 | 9.25 | 1539 | 0.0 |
| 21 | Villarreal Chavarria, Amy Samantha | 1437 | CRC | +48N | −16B | −20N | +46B | +32N | −11B | +28N | 4.0 | 20.0 | 20.0 | 7.00 | 789 | -12.0 |
| 22 | FIDE 6560520 | 0 | — | +?N | −8B | −36N | +40B | −25N | +38B | +32N | 4.0 | 18.0 | 18.0 | 7.00 | 823 | 0.0 |
| 23 | Tijerino Salazar, Ian Josue | 0 | CRC | +?N | +?B | −8N | −16B | +?N | +17B | −10N | 4.0 | 18.0 | 18.0 | 4.00 | 1489 | 0.0 |
| 24 | Soto Platero, Jose Alejandro | 0 | CRC | +?N | −17B | −28N | +45B | −11N | +?B | +29B | 4.0 | 16.0 | 16.0 | 4.00 | 777 | 0.0 |
| 25 | FIDE 6576222 | 0 | — | −29B | +41N | +47B | =26N | +22B | −9N | −15B | 3.5 | 22.0 | 23.0 | 8.75 | 604 | 0.0 |
| 26 | Montoya Ibanez, Oscar Santiago | 0 | CRC | +?N | −5B | +45N | =25B | +36N | −14B | −12N | 3.5 | 21.5 | 21.5 | 5.25 | 827 | 0.0 |
| 27 | Baltodano Valdez, Jorge Isaac | 0 | CRC | −6B | +?N | +?B | =?B | +?N | −16B | −?N | 3.5 | 9.0 | 9.0 | 0.00 | 1293 | 0.0 |
| 28 | FIDE 6561268 | 0 | — | −31B | +40N | +24B | −3N | +?B | −13N | −21B | 3.0 | 24.0 | 24.0 | 6.00 | 693 | 0.0 |
| 29 | Rodriguez Porras, Rosa | 0 | CRC | +25N | −1B | +46N | +?B | −8N | −?B | −24N | 3.0 | 20.5 | 20.5 | 4.50 | 787 | 0.0 |
| 30 | FIDE 6573800 | 0 | — | −14N | +37B | +34N | −17B | −18N | −41B | +39N | 3.0 | 20.0 | 22.0 | 7.50 | 711 | 0.0 |
| 31 | FIDE 6565360 | 0 | — | +28N | −20B | −11N | +43B | +39N | −18B | F | 3.0 | 20.0 | 20.0 | 7.00 | 645 | 0.0 |
| 32 | Casierra Bonilla, Francisco | 0 | CRC | −8N | +?B | −19N | +?B | −21B | +33N | −22B | 3.0 | 20.0 | 20.0 | 3.00 | 726 | 0.0 |
| 33 | FIDE 6560580 | 0 | — | −18N | −11B | +37N | −39B | +40N | −32B | +45N | 3.0 | 18.5 | 19.5 | 5.50 | 645 | 0.0 |
| 34 | FIDE 6571930 | 0 | — | +?B | −7N | −30B | +44N | +38B | −10B | −?N | 3.0 | 16.5 | 16.5 | 3.50 | 647 | 0.0 |
| 35 | FIDE 6555977 | 0 | — | +?N | −2B | −38N | +?B | −?N | +?B | −17N | 3.0 | 12.0 | 12.0 | 0.00 | 777 | 0.0 |
| 36 | Cuevas Arias, Sebastian | 0 | CRC | −10B | +?N | +22B | =13N | −26B | −?N | −?B | 2.5 | 17.5 | 17.5 | 6.50 | 657 | 0.0 |
| 37 | FIDE 6572006 | 0 | — | −7B | −30N | −33B | −?N | +?B | =44N | +?B | 2.5 | 12.5 | 12.5 | 0.75 | 636 | 0.0 |
| 38 | FIDE 6576214 | 0 | — | F | −13N | +35B | −19B | −34N | −22N | +42B | 2.0 | 21.0 | 21.0 | 5.00 | 719 | 0.0 |
| 39 | FIDE 6571956 | 0 | — | +?B | −9N | −?B | +33N | −31B | −15N | −30B | 2.0 | 18.5 | 18.5 | 3.00 | 604 | 0.0 |
| 40 | FIDE 6570887 | 0 | — | −17N | −28B | F | −22N | −33B | +?N | +?B | 2.0 | 14.0 | 14.0 | 0.00 | 777 | 0.0 |
| 41 | FIDE 6576150 | 0 | — | −?N | −25B | −?N | F | +44B | +30N | −19B | 2.0 | 12.0 | 12.0 | 4.50 | 738 | 0.0 |
| 42 | FIDE 6570917 | 0 | — | −1N | −?B | −?N | +?B | +?N | −?B | −38N | 2.0 | 9.0 | 9.0 | 0.00 | 780 | 0.0 |
| 43 | FIDE 6576141 | 0 | — | −9B | −?N | +?B | −31N | −?B | −?N | +48B | 2.0 | 8.0 | 8.0 | 0.00 | 604 | 0.0 |
| 44 | FIDE 6573789 | 0 | — | −19N | +49B | −14N | −34B | −41N | =37B | −?N | 1.5 | 16.0 | 16.0 | 1.25 | 719 | 0.0 |
| 45 | FIDE 6576133 | 0 | — | F | −10N | −26B | −24N | −15B | +48N | −33B | 1.0 | 20.0 | 20.0 | 0.00 | 657 | 0.0 |
| 46 | FIDE 6576184 | 0 | — | −13B | +50N | −29B | −21N | F | F | F | 1.0 | 12.0 | 12.0 | 0.00 | 637 | 0.0 |
| 47 | FIDE 6576125 | 0 | — | −5N | +48B | −25N | F | F | F | F | 1.0 | 8.5 | 8.5 | 0.00 | 827 | 0.0 |
| 48 | FIDE 6576192 | 0 | — | −21B | −47N | F | −18B | −?N | −45B | −43N | 0.0 | 12.0 | 12.0 | 0.00 | 641 | 0.0 |
| 49 | FIDE 6576117 | 0 | — | −3B | −44N | F | F | F | F | F | 0.0 | 9.5 | 9.5 | 0.00 | 748 | 0.0 |
| 50 | FIDE 6571964 | 0 | — | −16N | −46B | F | F | F | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 789 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Rodriguez Gonzalez, SantiagoCRC+53.67.0 pts · #2
- 2Montenegro Rojas, Mario AlejandroCRC+51.66.0 pts · #1
- 3Charaja Umana, Nataly CrisbethCRC+39.65.0 pts · #10
Top rating losers
- 1Charpentier Badilla, Ian SebastianCRC-55.25.0 pts · #42
- 2Torres Angulo, Gary EstebanCRC-45.64.0 pts · #13
- 3Cerdas Hurtado, Jose AngelCRC-36.44.0 pts · #44
Biggest upsets
- R4+199 Elo gap
- R3+140 Elo gap
- R3+135 Elo gap