XXIII Strong Chess Sub-1800
10 players participated in this 9-round tournament, held from 19 Mar 2026 to 25 Mar 2026 in Santo Domingo Este, Dominican Republic. 3 federations represented. Top 10 Elo average was 1660, and top seed was Jesus Ontiveros (🇻🇪 VEN, 1798).
Mario David Garcia Calderon (🇩🇴 DOM, 1770) won with 7.0/9, ahead of Jose Manuel Gomez Lara (6.5) and Melvin Marcial Montero Mercedes (6.0). Garcia Calderon shared the lead from round 7 and broke clear in the final round.
The biggest upset came in round 4: Bruno Said Almonte Rosario (1504) beat Jesus Ontiveros (1798), a +294-point gap.
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How it unfolded
Top 10 · 9 roundsMario David Garcia Calderon led from R3 onwards, the runner-up race stayed tight.
Melvin Marcial Montero Mercedes takes the sole lead (5.5/6).
Mario David Garcia Calderon beat Jose Manuel Gomez Lara (White).
Mario David Garcia Calderon 4 wins (R1–R4)Jose Manuel Gomez Lara 3 wins (R7–R9)Melvin Marcial Montero Mercedes 5 wins (R2–R6)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇩🇴Garcia Calderon, Mario David | 1770 | * | 1 | 0 | 1 | ½ | ½ | 1 | 1 | 1 | 1 | 7.0 | 27.50 | 38.0 | +20.0 | 1856 |
| 2 | 🇩🇴Gomez Lara, Jose Manuel | 1673 | 0 | * | 1 | 1 | 0 | 1 | 1 | ½ | 1 | 1 | 6.5 | 25.50 | 38.5 | +67.6 | 1813 |
| 3 | 🇩🇴Montero Mercedes, Melvin Marcial | 1764 | 1 | 0 | * | ½ | 1 | 1 | 0 | ½ | 1 | 1 | 6.0 | 24.25 | 39.0 | +1.4 | 1762 |
| 4 | 🇩🇴Aquino Castillo, Leonardo | 1748 | 0 | 0 | ½ | * | ½ | 1 | 1 | ½ | 1 | 1 | 5.5 | 19.25 | 39.5 | -9.6 | 1719 |
| 5 | 🇩🇴Almonte Rosario, Bruno Said | 1504 | ½ | 1 | 0 | ½ | * | 1 | 1 | ½ | 0 | 0 | 4.5 | 22.75 | 40.5 | +71.6 | 1666 |
| 6 | 🇻🇪Ontiveros, Jesus | 1798 | ½ | 0 | 0 | 0 | 0 | * | 1 | 1 | 1 | 1 | 4.5 | 14.50 | 40.5 | -36.8 | 1633 |
| 7 | Tezanos, Gabriel | 1777 | 0 | 0 | 1 | 0 | 0 | 0 | * | 1 | 1 | 1 | 4.0 | 13.00 | 41.0 | -28.8 | 1605 |
| 8 | 🇩🇴Reyes Corona, Manuel Alonso | 1565 | 0 | ½ | ½ | ½ | ½ | 0 | 0 | * | 0 | 1 | 3.0 | 12.25 | 42.0 | -16.4 | 1534 |
| 9 | 🇩🇴Valdez Cruz, Carlos Arturo | 1521 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | * | 1 | 3.0 | 8.50 | 42.0 | +2.4 | 1539 |
| 10 | 🇩🇴Martinez Pena, Victor | 1483 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | * | 1.0 | 4.50 | 44.0 | -58.4 | 1317 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Almonte Rosario, Bruno SaidDOM+71.64.5 pts · #5
- 2Gomez Lara, Jose ManuelDOM+67.66.5 pts · #2
- 3Garcia Calderon, Mario DavidDOM+20.07.0 pts · #1
- 1Martinez Pena, VictorDOM-58.41.0 pts · #10
- 2Ontiveros, JesusVEN-36.84.5 pts · #6
- 3Tezanos, GabrielFID-28.84.0 pts · #7
- R4+294 Elo gap
- R8+273 Elo gap
- R6+169 Elo gap