Juegos Deportivos Nacionales Eliminatorias 2025 Z1 U16 Individual Femenino
Open SwissStandard
11 players participated in this 7-round tournament, held from 06 Sept 2025 to 07 Sept 2025 in Heredia, Costa Rica. Top 10 Elo average was 437, and top seed was Nayareth Gabb Diaz (🇨🇷 CRC, 1535).
Nayareth Gabb Diaz (🇨🇷 CRC, 1535) won with 7.0/7, ahead of Amy Samantha Villarreal Chavarria (5.0) and Breyssi Yasiri Araya Vaciana (4.5). Gabb Diaz won solo starting round 4.
Location
🇨🇷Heredia, Costa Rica
Dates
06 Sept 2025 → 07 Sept 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Federations · 1 represented
🇨🇷Costa Rica×5
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsNayareth Gabb Diaz led from R4; +2.0-point edge over the runner-up.
Co-leaders
6
3
2
1
1
1
1
R4–R7 · LEAD HELD
Nayareth Gabb Diaz never relinquished the lead after R4; final gap +2.0 over the runner-up.
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Nayareth Gabb Diaz beat Amy Samantha Villarreal Chavarria (White).
WIN STREAKS · 2 top finishers
Nayareth Gabb Diaz 7 wins (R1–R7)Amy Samantha Villarreal Chavarria 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Nayareth Gabb Diaz | * | 1 | 1 | 1 |
| 2Amy Samantha Villarreal Chavarria | 0 | * | 1 | 0 |
| 3Breyssi Yasiri Araya Vaciana | 0 | 0 | * | 1 |
| 4Mariana Marin Guevara | 0 | 1 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gabb Diaz, Nayareth | 1535 | CRC | +10N | +9B | +3N | +2B | +6B | +4N | +5N | 7.0 | 22.0 | 24.0 | 24.00 | 2216 | +28.4 |
| 2 | Villarreal Chavarria, Amy Samantha | 1425 | CRC | +11N | +8B | +9N | −1N | +3B | +6N | −4B | 5.0 | 23.5 | 24.5 | 13.50 | 665 | -36.0 |
| 3 | Araya Vaciana, Breyssi Yasiri | 0 | CRC | +?N | +6B | −1B | +4N | −2N | =5B | +7N | 4.5 | 25.5 | 25.5 | 11.75 | 1326 | 0.0 |
| 4 | Marin Guevara, Mariana | 1411 | CRC | −6B | +5N | +11B | −3B | +7N | −1B | +2N | 4.0 | 26.0 | 27.0 | 12.50 | 1474 | +7.6 |
| 5 | FIDE 6564143 | 0 | — | +7N | −4B | −6N | +?B | +8N | =3N | −1B | 3.5 | 24.5 | 24.5 | 8.25 | 665 | 0.0 |
| 6 | Acuna Badilla, Sussy Belen | 0 | CRC | +4N | −3N | +5B | +8B | −1N | −2B | F | 3.0 | 27.0 | 27.0 | 10.50 | 1326 | 0.0 |
| 7 | FIDE 6562272 | 0 | — | −5B | −?N | +?B | +9N | −4B | +10N | −3B | 3.0 | 16.0 | 16.0 | 4.00 | 607 | 0.0 |
| 8 | FIDE 6574025 | 0 | — | F | −2N | +?B | −6N | −5B | +?N | +11B | 3.0 | 12.5 | 12.5 | 1.00 | 625 | 0.0 |
| 9 | FIDE 6575358 | 0 | — | +?N | −1N | −2B | −7B | F | +11N | −10B | 2.0 | 18.0 | 18.0 | 1.00 | 674 | 0.0 |
| 10 | FIDE 6561268 | 0 | — | −1B | −11N | F | +?B | −?N | −7B | +9N | 2.0 | 13.0 | 13.0 | 2.00 | 722 | 0.0 |
| 11 | FIDE 6572243 | 0 | — | −2B | +10B | −4N | F | −?N | −9B | −8N | 1.0 | 16.0 | 16.0 | 2.00 | 616 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Gabb Diaz, NayarethCRC+28.47.0 pts · #1
- 2Marin Guevara, MarianaCRC+7.64.0 pts · #2
- 3FIDE 65612680.02.0 pts · #5
Top rating losers
- 1Villarreal Chavarria, Amy SamanthaCRC-36.05.0 pts · #6
- 2FIDE 65612680.02.0 pts · #5
- 3FIDE 65622720.03.0 pts · #10