II Festival de Divisiones IV Division Belen 2025
27 players participated in this 7-round tournament, held from 29 Nov 2025 to 30 Nov 2025 in Belen, Costa Rica. Top 10 Elo average was 1183, and top seed was Daniel A Leguizamon Santamaria (🇨🇷 CRC, 1552).
Abraham Sequeira Morales (🇨🇷 CRC, 1448) won with 6.5/7, ahead of Gabriel Viquez Alfaro (5.5) and Cesar Augusto Azofeifa Retana (5.0). Sequeira Morales won solo starting round 5.
The biggest upset came in round 5: Abraham Sequeira Morales (1448) beat Gabriel Viquez Alfaro (1550), a +102-point gap.
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How it unfolded
Top 6 · 7 roundsAbraham Sequeira Morales led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Abraham Sequeira Morales never relinquished the lead after R5; final gap +1.0 over the runner-up.
Abraham Sequeira Morales beat Gabriel Viquez Alfaro (Black).
Abraham Sequeira Morales 6 wins (R1–R6)Gabriel Viquez Alfaro 4 wins (R1–R4)Cesar Augusto Azofeifa Retana 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Abraham Sequeira Morales | * | 1 | 1 | 1 |
| 2Gabriel Viquez Alfaro | 0 | * | ½ | — |
| 3Cesar Augusto Azofeifa Retana | 0 | ½ | * | — |
| 4Sofia Rodriguez Solano | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sequeira Morales, Abraham | 1448 | CRC | +15B | +10N | +4B | +3B | +2N | +7N | =6B | 6.5 | 28.0 | 31.0 | 28.75 | 1839 | +34.6 |
| 2 | Viquez Alfaro, Gabriel | 1550 | CRC | +11N | +16B | +14B | +5N | −1B | +8N | =3B | 5.5 | 27.0 | 30.0 | 21.00 | 1544 | +1.6 |
| 3 | Azofeifa Retana, Cesar Augusto | 1441 | CRC | +13N | +17B | +5B | −1N | =8B | +19N | =2N | 5.0 | 27.5 | 30.0 | 18.50 | 1579 | +25.6 |
| 4 | Rodriguez Solano, Sofia | 0 | CRC | +20N | +25B | −1N | −19B | +24B | +9N | +10B | 5.0 | 20.0 | 21.0 | 12.00 | 663 | -22.4 |
| 5 | Berzosa Madriz, Hector Julian | 1480 | CRC | +21N | +6B | −3N | −2B | +17B | +13N | =7B | 4.5 | 26.0 | 27.5 | 14.75 | 1499 | +10.8 |
| 6 | Cortes Acuna, Samuel Camilo | 0 | CRC | +23B | −5N | +25N | +11B | −7N | +12B | =1N | 4.5 | 23.5 | 24.5 | 12.25 | 1401 | -17.2 |
| 7 | Moran, Mike | 1548 | CRC | F | +27N | +9B | +14N | +6B | −1B | =5N | 4.5 | 23.5 | 23.5 | 13.75 | 1549 | -0.4 |
| 8 | Larionov, Lev | 0 | CRC | −22N | +21B | +18N | +12B | =3N | −2B | +19B | 4.5 | 21.0 | 22.5 | 13.00 | 1491 | 0.0 |
| 9 | Torres Venegas, Brianna | 0 | CRC | +24B | −12N | −7N | +18B | +11N | −4B | +?N | 4.0 | 20.5 | 20.5 | 7.50 | 1403 | 0.0 |
| 10 | FIDE 6563660 | 0 | — | +19N | −1B | −11N | +21B | =14B | +20N | −4N | 3.5 | 23.0 | 24.5 | 8.00 | 1247 | 0.0 |
| 11 | Lacayo Kolyzhikhin, Ivan | 0 | CRC | −2B | +23N | +10B | −6N | −9B | =14N | +20B | 3.5 | 23.0 | 24.0 | 8.50 | 1202 | 0.0 |
| 12 | Peraza Cedrez, Daniel | 1473 | CRC | F | +9B | +16N | −8N | +15B | −6N | =13B | 3.5 | 22.5 | 22.5 | 11.75 | 675 | -10.2 |
| 13 | Espinoza Jimenez, Joselyn | 0 | CRC | −3B | =15N | +26B | +20N | =19N | −5B | =12N | 3.5 | 21.0 | 21.0 | 7.00 | 1193 | 0.0 |
| 14 | Gutierrez Zapata, Mariana | 1414 | CRC | +18N | +22B | −2N | −7B | =10N | =11B | −16B | 3.0 | 23.0 | 24.5 | 8.00 | 741 | -26.4 |
| 15 | Carballo Hernandez, Rolando | 0 | CRC | −1N | =13B | =?N | +16B | −12N | −17B | +23N | 3.0 | 20.5 | 20.5 | 5.75 | 1173 | 0.0 |
| 16 | Santhosh, Mithila Lakshmi | 0 | CRC | +27B | −2N | −12B | −15N | F | +21B | +14N | 3.0 | 18.0 | 18.0 | 4.50 | 1352 | 0.0 |
| 17 | Pazmino Acosta, Magdalena | 1480 | CRC | +26B | −3N | −19B | +22B | −5N | +15N | F | 3.0 | 16.5 | 16.5 | 4.50 | 659 | -42.4 |
| 18 | FIDE 6562620 | 0 | — | −14B | +26N | −8B | −9N | −?B | +23N | +24B | 3.0 | 13.5 | 13.5 | 2.00 | 657 | 0.0 |
| 19 | FIDE 6578950 | 0 | — | −10B | F | +17N | +4N | =13B | −3B | −8N | 2.5 | 24.5 | 24.5 | 9.75 | 1469 | 0.0 |
| 20 | FIDE 6559158 | 0 | — | −4B | +24N | =22N | −13B | +?N | −10B | −11N | 2.5 | 18.0 | 18.0 | 1.75 | 1573 | 0.0 |
| 21 | FIDE 6573347 | 0 | — | −5B | −8N | +23B | −10N | F | −16N | =?B | 1.5 | 16.5 | 16.5 | 1.00 | 1286 | 0.0 |
| 22 | Murillo Mathiew, Aimar Maria | 0 | CRC | +8B | −14N | =20B | −17N | F | F | F | 1.5 | 16.0 | 16.0 | 5.75 | 649 | -42.8 |
| 23 | FIDE 6565042 | 0 | — | −6N | −11B | −21N | −?B | +27N | −18B | −15B | 1.0 | 15.5 | 15.5 | 0.00 | 714 | 0.0 |
| 24 | FIDE 6578969 | 0 | — | −9N | −20B | +27B | F | −4N | −?B | −18N | 1.0 | 15.5 | 15.5 | 0.00 | 753 | 0.0 |
| 25 | Hyder Jimenez, Omar | 0 | CRC | F | −4N | −6B | F | F | −?N | +27B | 1.0 | 15.0 | 15.0 | 0.00 | 687 | 0.0 |
| 26 | Murillo Mathiew, Thomas | 0 | CRC | −17N | −18B | −13N | F | F | F | F | 0.0 | 11.0 | 11.0 | 0.00 | 681 | 0.0 |
| 27 | FIDE 6549195 | 0 | — | −16N | −7B | −24N | F | −23B | F | −25N | 0.0 | 10.5 | 10.5 | 0.00 | 748 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Sequeira Morales, AbrahamCRC+34.66.5 pts · #1
- 2Azofeifa Retana, Cesar AugustoCRC+25.65.0 pts · #3
- 3Berzosa Madriz, Hector JulianCRC+10.84.5 pts · #2
- 1Murillo Mathiew, Aimar MariaCRC-42.81.5 pts · #25
- 2Pazmino Acosta, MagdalenaCRC-42.43.0 pts · #17
- 3Gutierrez Zapata, MarianaCRC-26.43.0 pts · #24
- R5+102 Elo gap