Campeonato Internacional Abierto de Ajedrez Tijuana 2025 Sub 13
17 players participated in this 7-round tournament, held from 27 Sept 2025 to 29 Sept 2025 in B C, Tijuana, Mexico. Top 10 Elo average was 502, and top seed was Mateo Ruiz Gastelum (🇲🇽 MEX, 1806).
Mateo Ruiz Gastelum (🇲🇽 MEX, 1806) won with 6.5/7, ahead of Santiago Ortiz Padilla (5.5) and Luis Roberto Garcia Guzman (5.0). Ruiz Gastelum won solo starting round 4.
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How it unfolded
Top 6 · 7 roundsMateo Ruiz Gastelum led from R4; +1.0-point edge over the runner-up.
Mateo Ruiz Gastelum never relinquished the lead after R4; final gap +1.0 over the runner-up.
Mateo Ruiz Gastelum drew with Santiago Ortiz Padilla (Black).
Mateo Ruiz Gastelum 6 wins (R1–R6)Santiago Ortiz Padilla 3 wins (R1–R3)Luis Roberto Garcia Guzman 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Mateo Ruiz Gastelum | * | ½ | — | 1 |
| 2Santiago Ortiz Padilla | ½ | * | 1 | — |
| 3Luis Roberto Garcia Guzman | — | 0 | * | — |
| 4Mateo Alexander Miranda Rivera | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ruiz Gastelum, Mateo | 1806 | MEX | +15N | +6B | +16N | +14B | +7N | +4B | =2N | 6.5 | 21.0 | 21.0 | 18.25 | 1509 | -14.0 |
| 2 | Ortiz Padilla, Santiago | 1513 | MEX | +13N | +12B | +3N | =7B | =5N | +11B | =1B | 5.5 | 26.5 | 29.0 | 21.75 | 1750 | +23.6 |
| 3 | Garcia Guzman, Luis Roberto | 0 | MEX | +?B | =9N | −2B | +15N | +14N | +5B | =6B | 5.0 | 19.5 | 19.5 | 10.25 | 1601 | 0.0 |
| 4 | Miranda Rivera, Mateo Alexander | 0 | MEX | +?N | =8B | +11N | =?B | +?N | −1N | +?B | 5.0 | 13.5 | 13.5 | 5.25 | 1520 | 0.0 |
| 5 | Noriega Avilez, Yaiza Violeta | 1696 | MEX | +10B | −7N | +17N | +8B | =2B | −3N | =9B | 4.0 | 25.0 | 25.0 | 11.50 | 1509 | -9.6 |
| 6 | Estevez Aley, Edward Emmanuel | 0 | MEX | F | −1N | +?B | =10N | +9B | +8B | =3N | 4.0 | 22.0 | 22.0 | 11.25 | 1007 | 0.0 |
| 7 | Villalobos Rendon, Liliana | 0 | MEX | F | +5B | +?N | =2N | −1B | =?B | +?N | 4.0 | 16.0 | 16.0 | 6.75 | 1657 | 0.0 |
| 8 | Marquez Corona, Ana Regina | 0 | MEX | +?B | =4N | =9B | −5N | +?B | −6N | =12B | 3.5 | 20.0 | 20.0 | 6.00 | 892 | 0.0 |
| 9 | Esquivel Ibarra, Bruno Francisco | 0 | MEX | +?N | =3B | =8N | +16B | −6N | −?B | =5N | 3.5 | 16.5 | 16.5 | 6.25 | 1692 | 0.0 |
| 10 | Arechiga Acevedo, Martin Hiram | 0 | MEX | −5N | F | +?B | =6B | −?N | +15B | +13N | 3.5 | 11.5 | 11.5 | 5.50 | 856 | 0.0 |
| 11 | Perez Rodriguez, Edred Marek | 0 | MEX | +?N | F | −4B | +?B | +?N | −2N | =?B | 3.5 | 10.5 | 10.5 | 0.00 | 1371 | 0.0 |
| 12 | FIDE 29697000 | 0 | — | +?B | −2N | −?N | +?B | +16N | −?B | =8N | 3.5 | 9.0 | 9.0 | 1.75 | 764 | 0.0 |
| 13 | FIDE 550012339 | 0 | — | −2B | +?N | F | =?B | +?N | F | −10B | 2.5 | 11.5 | 11.5 | 0.00 | 709 | 0.0 |
| 14 | FIDE 29691192 | 0 | — | F | +?B | =?N | −1N | −3B | F | F | 1.5 | 14.0 | 14.0 | 0.00 | 1713 | 0.0 |
| 15 | FIDE 29681898 | 0 | — | −1B | F | F | −3B | +?N | −10N | −?B | 1.0 | 17.5 | 17.5 | 0.00 | 1007 | 0.0 |
| 16 | Carballo Hernandez, Angel Alexand | 0 | MEX | F | F | −1B | −9N | −12B | −?N | F | 0.0 | 13.5 | 13.5 | 0.00 | 1007 | 0.0 |
| 17 | FIDE 29681944 | 0 | — | −?N | F | −5B | −?N | −?N | −?B | −?B | 0.0 | 4.0 | 4.0 | 0.00 | 856 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Ortiz Padilla, SantiagoMEX+23.65.5 pts · #4
- 2Estevez Aley, Edward EmmanuelMEX0.04.0 pts · #11
- 3Villalobos Rendon, LilianaMEX0.04.0 pts · #1
- 1Ruiz Gastelum, MateoMEX-14.06.5 pts · #6
- 2Noriega Avilez, Yaiza VioletaMEX-9.64.0 pts · #9
- 3Estevez Aley, Edward EmmanuelMEX0.04.0 pts · #11