Campeonato estatal BCS sub 1800
26 players participated in this 5-round tournament, held from 07 Dec 2025 to 09 Dec 2025 in BCS, La Paz, Mexico. Top 10 Elo average was 1582, and top seed was Silverio Aaron Alberto Trujillo Martinez (🇲🇽 MEX, 1754).
Elmer Isaias Santos Leon (🇲🇽 MEX, 0) won with 4.5/5, ahead of Jose Carlos Rodriguez Castillo (4.0) and Ricardo Alexis Simental De Los Santos (4.0).
The biggest upset came in round 1: Mauro Alexandro Valdez Rondon (1410) beat Gema Zophiel Trujillo Guzman (1610), a +200-point gap.
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How it unfolded
Top 6 · 5 roundsElmer Isaias Santos Leon led from R3; +0.5-point edge over the runner-up.
Elmer Isaias Santos Leon held the sole lead from R3 through R5 without losing it.
Elmer Isaias Santos Leon drew with Jose Carlos Rodriguez Castillo (Black).
Elmer Isaias Santos Leon won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishersGrille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Santos Leon, Elmer Isaias | 0 | MEX | +?N | +20B | +10N | +5B | =2N | 4.5 | 11.0 | 11.0 | 9.00 | 1657 | 0.0 |
| 2 | Rodriguez Castillo, Jose Carlos | 1630 | MEX | +25B | +6N | =4B | +15N | =1B | 4.0 | 13.5 | 13.5 | 9.25 | 1671 | +4.0 |
| 3 | Simental De Los Santos, Ricardo Alexis | 1560 | MEX | +12N | +14B | =5N | =11B | +10N | 4.0 | 11.0 | 13.5 | 10.50 | 1564 | +0.4 |
| 4 | Avena Armendariz, Saul Sebastian | 1542 | MEX | +23B | +22N | =2N | =10B | +11N | 4.0 | 10.0 | 11.0 | 7.75 | 1713 | +17.6 |
| 5 | Leyva Murillo, Noe | 1720 | MEX | +19B | +9N | =3B | −1N | +15B | 3.5 | 13.5 | 15.5 | 9.00 | 1711 | -0.2 |
| 6 | Valdez Rondon, Mauro Alexandro | 1410 | MEX | +16N | −2B | +17N | F | +18B | 3.0 | 10.0 | 10.0 | 6.00 | 1715 | +48.0 |
| 7 | Trujillo Martinez, Silverio Aaron Alberto | 1754 | MEX | =24N | +21B | −15B | =18N | +12N | 3.0 | 7.5 | 8.5 | 5.00 | 1708 | -3.6 |
| 8 | FIDE 5192757 | 0 | — | −?B | +13N | −11B | +23N | +22B | 3.0 | 7.0 | 7.0 | 4.50 | 609 | 0.0 |
| 9 | FIDE 29613590 | 0 | — | F | −5B | +20N | +?N | +?B | 3.0 | 6.5 | 6.5 | 1.00 | 1610 | 0.0 |
| 10 | FIDE 550004921 | 0 | — | +13B | +?N | −1B | =4N | −3B | 2.5 | 15.0 | 15.0 | 4.50 | 1359 | 0.0 |
| 11 | Martinez Munoz, Hilda Renata | 1426 | MEX | F | +26B | +8N | =3N | −4B | 2.5 | 11.0 | 11.0 | 5.00 | 1359 | -4.8 |
| 12 | Valdez Alvarez, Santino | 0 | MEX | −3B | +?N | =16B | +21N | −7B | 2.5 | 10.0 | 10.0 | 2.00 | 1519 | 0.0 |
| 13 | Rodriguez Castillo, Nahivi Lourde | 0 | MEX | −10N | −8B | +19B | =?N | +21B | 2.5 | 8.5 | 8.5 | 3.00 | 1528 | 0.0 |
| 14 | Yepiz, Flores Donovan Danie | 0 | MEX | +?B | −3N | =18B | =16N | =?B | 2.5 | 8.0 | 8.0 | 2.00 | 1442 | 0.0 |
| 15 | Lieras Cabrera, Roberto | 0 | MEX | F | +?B | +7N | −2B | −5N | 2.0 | 10.5 | 10.5 | 3.00 | 1576 | 0.0 |
| 16 | Trujillo Guzman, Gema Zophiel | 1610 | MEX | −6B | F | =12N | =14B | +17N | 2.0 | 10.0 | 10.0 | 4.50 | 612 | -30.4 |
| 17 | Galindo Ordaz, Kevin Josue | 0 | MEX | F | +19N | −6B | +25N | −16B | 2.0 | 10.0 | 10.0 | 2.00 | 1375 | 0.0 |
| 18 | Galindo De La Vega, Alan Eduardo | 1530 | MEX | −20N | +24B | =14N | =7B | −6N | 2.0 | 9.5 | 10.5 | 3.75 | 1283 | -36.8 |
| 19 | Castellanos Rangel, Carlos | 1477 | MEX | −5N | −17B | −13N | +26B | +20N | 2.0 | 9.0 | 9.0 | 1.00 | 1610 | +13.2 |
| 20 | Hernandez Cruz, Carlos Alberto | 1501 | MEX | +18B | −1N | −9B | −22N | −19B | 1.0 | 11.5 | 12.5 | 2.00 | 1503 | +0.4 |
| 21 | Nunez Castillo, Juan | 1500 | MEX | F | −7N | +24B | −12B | −13N | 1.0 | 9.0 | 9.0 | 1.00 | 954 | -7.6 |
| 22 | Hernandez Gaspar, Noe Ellihu | 0 | MEX | F | −4B | −?N | +20B | −8N | 1.0 | 8.0 | 8.0 | 1.00 | 1523 | 0.0 |
| 23 | FIDE 29661285 | 0 | — | −4N | −?B | F | −8B | +25N | 1.0 | 7.0 | 7.0 | 0.00 | 744 | 0.0 |
| 24 | Rangel Guzman, Barbara | 0 | MEX | =7B | −18N | −21N | F | =?B | 1.0 | 6.0 | 6.0 | 1.50 | 1321 | 0.0 |
| 25 | FIDE 29697050 | 0 | — | −2N | F | F | −17B | −23B | 0.0 | 9.0 | 9.0 | 0.00 | 830 | 0.0 |
| 26 | Rodriguez Ricaud, Jose Angel | 0 | MEX | F | −11N | −?B | −19N | F | 0.0 | 4.5 | 4.5 | 0.00 | 643 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Valdez Rondon, Mauro AlexandroMEX+48.03.0 pts · #3
- 2Avena Armendariz, Saul SebastianMEX+17.64.0 pts · #6
- 3Castellanos Rangel, CarlosMEX+13.22.0 pts · #12
- 1Galindo De La Vega, Alan EduardoMEX-36.82.0 pts · #20
- 2Trujillo Guzman, Gema ZophielMEX-30.42.0 pts · #22
- 3Nunez Castillo, JuanMEX-7.61.0 pts · #23
- R1+200 Elo gap
- R5+120 Elo gap