Campeonato Estatal Abierto de Ajedrez Monclova 2025 Sub 16
Open SwissStandard
33 players participated in this 7-round tournament, held from 16 May 2025 to 18 May 2025 in COA, Monclova, Mexico. 1 titled players. Top 10 Elo average was 1730, and top seed was Levi Kalani Alexander Fogo Esquivel (🇲🇽 MEX, FM, 2063).
Carlos Alfredo Noriega Castaneda (🇲🇽 MEX, 1949) won with 7.0/7, ahead of Santiago Franco Rivero (5.0) and Gilberto Haro Garcia (4.5). Noriega Castaneda won solo starting round 3.
The biggest upset came in round 1: Sebastian Rodriguez Villarreal (1515) beat Fernando Gonzalez Echevarria (1687), a +172-point gap.
Location
🇲🇽COA, Monclova, Mexico
Dates
16 May 2025 → 18 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Titled players · 1
FM×1
Federations · 1 represented
🇲🇽Mexico×25
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsCarlos Alfredo Noriega Castaneda led from R3; +2.0-point edge over the runner-up.
Co-leaders
7
3
1
1
1
1
1
Noriega Castaneda7Franco Rivero5Blackaller Iruegas4.5Muniz Gonzalez4.5Gonzalez Echevarria4.5Haro Garcia4.5
R3–R7 · LEAD HELD
Carlos Alfredo Noriega Castaneda never relinquished the lead after R3; final gap +2.0 over the runner-up.
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Carlos Alfredo Noriega Castaneda beat Santiago Franco Rivero (White).
R1–R7 · WIN STREAK
Carlos Alfredo Noriega Castaneda won 7 in a row (R1–R7).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Carlos Alfredo Noriega Castaneda | * | 1 | — | — |
| 2Santiago Franco Rivero | 0 | * | — | — |
| 3Valeria Angel Blackaller Iruegas | — | — | * | 1 |
| 4Angel Gerardo Muniz Gonzalez | — | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Noriega Castaneda, Carlos Alfredo | 1949 | MEX | +13N | +3B | +14N | +10B | +18N | +2B | +24N | 7.0 | 21.5 | 23.0 | 23.00 | 2526 | +57.6 |
| 2 | Franco Rivero, Santiago | 1713 | MEX | =9N | +11B | =10N | +15B | +31N | −1N | +29B | 5.0 | 22.0 | 22.0 | 11.25 | 1609 | -11.2 |
| 3 | Haro Garcia, Gilberto | 1637 | MEX | +21B | −1N | +12B | =7N | −6B | +32N | +11B | 4.5 | 24.5 | 24.5 | 11.00 | 1598 | -8.4 |
| 4 | Blackaller Iruegas, Valeria Angel | 0 | MEX | =11N | +9B | +5N | −14B | +10N | −?B | +7B | 4.5 | 22.5 | 22.5 | 17.75 | 1672 | 0.0 |
| 5 | Muniz Gonzalez, Angel Gerardo | 1789 | MEX | +7B | =12N | −4B | +8N | +32B | +31N | −18N | 4.5 | 18.0 | 18.0 | 9.75 | 1704 | -12.4 |
| 6 | Gonzalez Echevarria, Fernando | 1687 | MEX | −8B | +20N | F | =11B | +3N | +27N | +23B | 4.5 | 17.0 | 17.0 | 11.25 | 1576 | -12.0 |
| 7 | FIDE 5144353 | 0 | — | −5N | +19B | +21N | =3B | =?N | +14B | −4N | 4.0 | 20.5 | 20.5 | 9.25 | 1668 | 0.0 |
| 8 | Rodriguez Villarreal, Sebastian | 1515 | MEX | +6N | −14B | =9N | −5B | +28B | =12N | +31B | 4.0 | 20.5 | 20.5 | 9.25 | 1585 | +12.4 |
| 9 | Estrada Cadena, Jesus Fidel | 0 | MEX | =2B | −4N | =8B | +21N | +?N | +?B | −?N | 4.0 | 15.5 | 15.5 | 6.50 | 1576 | 0.0 |
| 10 | Rodriguez Acosta, Sofia Yunuen | 1655 | MEX | +17B | +15N | =2B | −1N | −4B | −11N | +33B | 3.5 | 25.5 | 25.5 | 8.00 | 1638 | -2.8 |
| 11 | Aleman Balderas, Alessandro | 0 | MEX | =4B | −2N | +20B | =6N | =?N | +10B | −3N | 3.5 | 24.0 | 24.0 | 10.00 | 1568 | 0.0 |
| 12 | Alejandro Betancourt, Debany Berenice | 1532 | MEX | +19N | =5B | −3N | =13B | =15N | =8B | =25N | 3.5 | 21.5 | 23.0 | 10.25 | 1523 | -5.2 |
| 13 | Esquivel Henrique, Manuel | 0 | MEX | −1B | +17N | −15B | =12N | −16B | +?N | +32B | 3.5 | 18.5 | 18.5 | 4.25 | 1403 | 0.0 |
| 14 | Dominguez Verastegui, Jose Luis | 1680 | MEX | +20B | +8N | −1B | +4N | −22B | −7N | −16B | 3.0 | 24.0 | 26.0 | 10.50 | 1545 | -22.8 |
| 15 | Martinez Ramirez, Ulises | 0 | MEX | F | −10B | +13N | −2N | =12B | =16N | +27B | 3.0 | 19.0 | 19.0 | 7.50 | 1419 | 0.0 |
| 16 | Mendez Cristobal, Mauricio Emilia | 1546 | MEX | F | F | F | F | +13N | =15B | +14N | 2.5 | 10.5 | 10.5 | 8.00 | 2479 | +27.2 |
| 17 | FIDE 29651700 | 0 | — | −10N | −13B | −19N | F | +?B | =30N | +28B | 2.5 | 10.5 | 10.5 | 1.25 | 855 | 0.0 |
| 18 | Fogo Esquivel, Levi Kalani AlexanderFM | 2063 | MEX | F | F | F | F | −1B | +26N | +5B | 2.0 | 16.5 | 16.5 | 6.00 | 1925 | -16.4 |
| 19 | Contreras Aquines, David Maximili | 0 | MEX | −12B | −7N | +17B | +20N | −27N | −25B | −?B | 2.0 | 14.5 | 14.5 | 4.50 | 716 | 0.0 |
| 20 | FIDE 550003194 | 0 | — | −14N | −6B | −11N | −19B | F | +?B | +?N | 2.0 | 13.0 | 13.0 | 0.00 | 883 | 0.0 |
| 21 | FIDE 29686636 | 0 | — | −3N | F | −7B | −9B | +?N | +?N | −?B | 2.0 | 12.5 | 12.5 | 0.00 | 837 | 0.0 |
| 22 | Guardiola Lopez, Luis Emilio | 0 | MEX | F | F | F | F | +14N | =24B | =26B | 2.0 | 10.5 | 10.5 | 4.50 | 1625 | 0.0 |
| 23 | Sanchez Herrera, Santiago | 0 | MEX | F | F | F | F | +25N | +?B | −6N | 2.0 | 9.0 | 9.0 | 1.50 | 1592 | 0.0 |
| 24 | Romero Gonzalez, Ramses Alejandro | 1577 | MEX | F | F | F | F | +33N | =22N | −1B | 1.5 | 15.5 | 15.5 | 1.00 | 1149 | -4.8 |
| 25 | Romero Gonzalez, Leila Angelica | 1497 | MEX | F | F | F | F | −23B | +19N | =12B | 1.5 | 11.5 | 11.5 | 3.75 | 1534 | +2.0 |
| 26 | Garcia Sanchez, Josue Emiliano | 1524 | MEX | F | F | F | F | +29B | −18B | =22N | 1.5 | 7.0 | 7.0 | 2.00 | 1128 | -3.2 |
| 27 | Ortegon Pina, Leonardo | 0 | MEX | F | F | F | F | +19B | −6B | −15N | 1.0 | 11.5 | 11.5 | 2.00 | 886 | 0.0 |
| 28 | FIDE 29686741 | 0 | — | F | F | F | F | −8N | +?B | −17N | 1.0 | 9.0 | 9.0 | 0.00 | 715 | 0.0 |
| 29 | FIDE 29622786 | 0 | — | F | F | F | F | −26N | +33B | −2N | 1.0 | 8.5 | 8.5 | 0.00 | 821 | 0.0 |
| 30 | FIDE 29686717 | 0 | — | F | F | F | F | −?N | =17B | −?N | 0.5 | 5.0 | 5.0 | 1.25 | 710 | 0.0 |
| 31 | FIDE 5148332 | 0 | — | F | F | F | F | −2B | −5B | −8N | 0.0 | 17.5 | 17.5 | 0.00 | 872 | 0.0 |
| 32 | Barboza Sanchez, Anuar Alejandro | 0 | MEX | F | F | F | F | −5N | −3B | −13N | 0.0 | 15.0 | 15.0 | 0.00 | 913 | 0.0 |
| 33 | Martinez Valles, Raul Emiliano | 0 | MEX | F | F | F | F | −24B | −29N | −10N | 0.0 | 8.0 | 8.0 | 0.00 | 832 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Noriega Castaneda, Carlos AlfredoMEX+57.67.0 pts · #1
- 2Mendez Cristobal, Mauricio EmiliaMEX+27.22.5 pts · #16
- 3Rodriguez Villarreal, SebastianMEX+12.44.0 pts · #8
Top rating losers
- 1Dominguez Verastegui, Jose LuisMEX-22.83.0 pts · #15
- 2Fogo Esquivel, Levi Kalani AlexanderFMMEX-16.42.0 pts · #3
- 3Muniz Gonzalez, Angel GerardoMEX-12.44.5 pts · #9
Biggest upsets
- R1+172 Elo gap
- R7+134 Elo gap
- R5+114 Elo gap