North American School Chess Championship Tijuana-Mexico 2025. U11 Abs
9 players participated in this 7-round tournament, held from 31 Oct 2025 to 04 Nov 2025 in B C, Tijuana, Mexico. 2 federations represented. Top 10 Elo average was 886, and top seed was Siddharth Kaushik (🇺🇸 USA, 1716).
Siddharth Kaushik (🇺🇸 USA, 1716) won with 5.5/7, ahead of Lamberto Cubillas Gonzalez (4.5) and Dante Vladimir Flores Ojeda (4.5). Kaushik won solo starting round 5.
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How it unfolded
Top 6 · 7 roundsSiddharth Kaushik led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Siddharth Kaushik never relinquished the lead after R5; final gap +1.0 over the runner-up.
Siddharth Kaushik beat Lamberto Cubillas Gonzalez (White).
Siddharth Kaushik won 3 in a row (R4–R6).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Siddharth Kaushik | * | 1 | ½ | — |
| 2Lamberto Cubillas Gonzalez | 0 | * | 1 | 1 |
| 3Dante Vladimir Flores Ojeda | ½ | 0 | * | 1 |
| 4Diego Martinez Guzman | — | 0 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kaushik, Siddharth | 1716 | USA | +8B | +4N | =3B | +6N | +2B | +7N | F | 5.5 | 18.5 | 18.5 | 16.25 | 1835 | +16.0 |
| 2 | Cubillas Gonzalez, Lamberto | 0 | MEX | +5B | =6N | +4B | +3N | −1N | F | +8B | 4.5 | 20.0 | 20.0 | 13.25 | 1651 | 0.0 |
| 3 | Flores Ojeda, Dante Vladimir | 1613 | MEX | +7B | +9N | =1N | −2B | F | +5N | +6B | 4.5 | 18.0 | 18.0 | 10.75 | 1930 | +46.0 |
| 4 | Arechiga Acevedo, Martin Hiram | 0 | MEX | F | −1B | −2N | +9B | =6B | =8N | +7B | 3.0 | 16.5 | 16.5 | 4.50 | 1468 | 0.0 |
| 5 | Martinez Guzman, Diego | 1541 | MEX | −2N | +8B | =6B | F | =7N | −3B | +9N | 3.0 | 15.5 | 15.5 | 4.00 | 1562 | -15.2 |
| 6 | Lopez Cabrera, Christian | 1640 | MEX | F | =2B | =5N | −1B | =4N | +9B | −3N | 2.5 | 20.5 | 20.5 | 5.25 | 1391 | -29.2 |
| 7 | Miranda Rivera, Mateo Alexander | 0 | MEX | −3N | F | +9B | +8N | =5B | −1B | −4N | 2.5 | 17.5 | 17.5 | 3.00 | 1527 | 0.0 |
| 8 | Gaona Garrido, Estefania | 1468 | MEX | −1N | −5N | F | −7B | +9N | =4B | −2N | 1.5 | 18.5 | 18.5 | 1.50 | 886 | -17.6 |
| 9 | FIDE 29656508 | 0 | — | F | −3B | −7N | −4N | −8B | −6N | −5B | 0.0 | 17.0 | 17.0 | 0.00 | 785 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Flores Ojeda, Dante VladimirMEX+46.04.5 pts · #2
- 2Kaushik, SiddharthUSA+16.05.5 pts · #3
- 3FIDE 296565080.00.0 pts · #8
- 1Lopez Cabrera, ChristianMEX-29.22.5 pts · #7
- 2Gaona Garrido, EstefaniaMEX-17.61.5 pts · #9
- 3Martinez Guzman, DiegoMEX-15.23.0 pts · #4