1st ICCD AMERICAS Open Deaf Chess Tournament Classical
Open SwissStandard
13 players participated in this 5-round tournament, held from 08 Dec 2025 to 10 Dec 2025 in Curitiba PR, Brazil. 5 federations represented. Top 10 Elo average was 786, and top seed was Jonathan Tuck (🇺🇸 USA, 1684).
Jonathan Tuck (🇺🇸 USA, 1684) won with 4.5/5, ahead of Patricio Vallejos Tapia (4.0) and Guilherme Rodrigues Andariola (4.0). Tuck won solo starting round 3.
Location
🇧🇷Curitiba PR, Brazil
Dates
08 Dec 2025 → 10 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 5 represented
🇧🇷Brazil×5
🇨🇷Costa Rica×2
🇦🇷Argentina×1
🇨🇱Chile×1
🇺🇸United States of America×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsJonathan Tuck led from R3; +0.5-point edge over the runner-up.
Co-leaders
7
4
1
1
1
R3–R5 · LEAD HELD
Jonathan Tuck held the sole lead from R3 through R5 without losing it.
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Jonathan Tuck drew with Patricio Vallejos Tapia (White).
WIN STREAKS · 2 top finishers
Jonathan Tuck 4 wins (R1–R4)Guilherme Rodrigues Andariola 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jonathan Tuck | * | ½ | 1 | — |
| 2Patricio Vallejos Tapia | ½ | * | — | — |
| 3Guilherme Rodrigues Andariola | 0 | — | * | 1 |
| 4Andrei Ramella | — | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Tuck, Jonathan | 1684 | USA | +12B | +3N | +4B | +6N | =2B | 4.5 | 13.5 | 14.5 | 12.50 | 2382 | +29.2 |
| 2 | Vallejos Tapia, Patricio | 0 | CHI | +?N | +8B | =6B | +4N | =1N | 4.0 | 12.5 | 12.5 | 9.00 | 1638 | 0.0 |
| 3 | Andariola, Guilherme Rodrigues | 0 | BRA | +9N | −1B | +11N | +5B | +6N | 4.0 | 12.0 | 13.0 | 8.50 | 1673 | 0.0 |
| 4 | Navas Pereira, Eduardo Kane | 1503 | CRC | +5N | +11B | −1N | −2B | +9N | 3.0 | 13.5 | 14.5 | 6.00 | 884 | -10.4 |
| 5 | Ramella, Andrei | 0 | BRA | −4B | +?B | +7N | −3N | +10B | 3.0 | 11.0 | 11.0 | 4.00 | 1487 | 0.0 |
| 6 | van den Bylaardt, Richard | 1661 | BRA | +13N | +7B | =2N | −1B | −3B | 2.5 | 15.0 | 15.5 | 5.00 | 1578 | -8.8 |
| 7 | Benetti, Leonardo | 1475 | ARG | +10B | −6N | −5B | +11N | =8N | 2.5 | 9.5 | 10.5 | 3.75 | 1411 | -6.0 |
| 8 | Chan Chen, Johnny | 1532 | CRC | −11B | −2N | +12B | +10N | =7B | 2.5 | 9.0 | 10.0 | 3.75 | 1471 | -4.0 |
| 9 | FIDE 538071533 | 0 | — | −3B | +12N | −10B | +?N | −4B | 2.0 | 9.5 | 9.5 | 1.00 | 702 | 0.0 |
| 10 | Silva Junior, Clovis Dallegrave | 0 | BRA | −7N | =13B | +9N | −8B | −5N | 1.5 | 10.0 | 10.5 | 2.25 | 709 | 0.0 |
| 11 | Negrisoli, Kleber De Peder | 0 | BRA | +8N | −4N | −3B | −7B | F | 1.0 | 12.0 | 12.0 | 2.50 | 1381 | 0.0 |
| 12 | FIDE 22777881 | 0 | — | −1N | −9B | −8N | F | +?B | 1.0 | 9.0 | 9.0 | 0.00 | 815 | 0.0 |
| 13 | FIDE 538078392 | 0 | — | −6B | =10N | F | F | F | 0.5 | 4.0 | 4.0 | 0.75 | 861 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Tuck, JonathanUSA+29.24.5 pts · #2
- 2Ramella, AndreiBRA0.03.0 pts · #3
- 3Vallejos Tapia, PatricioCHI0.04.0 pts · #1
Top rating losers
- 1Navas Pereira, Eduardo KaneCRC-10.43.0 pts · #12
- 2van den Bylaardt, RichardBRA-8.82.5 pts · #5
- 3Benetti, LeonardoARG-6.02.5 pts · #8