CChessStats

Campeonato estatal BCS sub 1800

Open SwissStandard

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.

Location
🇲🇽BCS, La Paz, Mexico
Dates
07 Dec 2025 → 09 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Avg top 10
1,582
Participants
26
Federations · 1 represented
🇲🇽Mexico×21
Top 3

How it unfolded

Top 6 · 5 rounds

Elmer Isaias Santos Leon led from R3; +0.5-point edge over the runner-up.

Co-leaders
10
6
1
1
1
1.52.545R1R2R3R4R5
R3–R5 · LEAD HELD

Elmer Isaias Santos Leon held the sole lead from R3 through R5 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Elmer Isaias Santos Leon drew with Jose Carlos Rodriguez Castillo (Black).

R1–R4 · WIN STREAK

Elmer Isaias Santos Leon won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Santos Leon, Elmer Isaias0MEX+?N+20B+10N+5B=2N4.511.011.09.0016570.0
2Rodriguez Castillo, Jose Carlos1630MEX+25B+6N=4B+15N=1B4.013.513.59.251671+4.0
3Simental De Los Santos, Ricardo Alexis1560MEX+12N+14B=5N=11B+10N4.011.013.510.501564+0.4
4Avena Armendariz, Saul Sebastian1542MEX+23B+22N=2N=10B+11N4.010.011.07.751713+17.6
5Leyva Murillo, Noe1720MEX+19B+9N=3B1N+15B3.513.515.59.001711-0.2
6Valdez Rondon, Mauro Alexandro1410MEX+16N2B+17NF+18B3.010.010.06.001715+48.0
7Trujillo Martinez, Silverio Aaron Alberto1754MEX=24N+21B15B=18N+12N3.07.58.55.001708-3.6
8FIDE 51927570?B+13N11B+23N+22B3.07.07.04.506090.0
9FIDE 296135900F5B+20N+?N+?B3.06.56.51.0016100.0
10FIDE 5500049210+13B+?N1B=4N3B2.515.015.04.5013590.0
11Martinez Munoz, Hilda Renata1426MEXF+26B+8N=3N4B2.511.011.05.001359-4.8
12Valdez Alvarez, Santino0MEX3B+?N=16B+21N7B2.510.010.02.0015190.0
13Rodriguez Castillo, Nahivi Lourde0MEX10N8B+19B=?N+21B2.58.58.53.0015280.0
14Yepiz, Flores Donovan Danie0MEX+?B3N=18B=16N=?B2.58.08.02.0014420.0
15Lieras Cabrera, Roberto0MEXF+?B+7N2B5N2.010.510.53.0015760.0
16Trujillo Guzman, Gema Zophiel1610MEX6BF=12N=14B+17N2.010.010.04.50612-30.4
17Galindo Ordaz, Kevin Josue0MEXF+19N6B+25N16B2.010.010.02.0013750.0
18Galindo De La Vega, Alan Eduardo1530MEX20N+24B=14N=7B6N2.09.510.53.751283-36.8
19Castellanos Rangel, Carlos1477MEX5N17B13N+26B+20N2.09.09.01.001610+13.2
20Hernandez Cruz, Carlos Alberto1501MEX+18B1N9B22N19B1.011.512.52.001503+0.4
21Nunez Castillo, Juan1500MEXF7N+24B12B13N1.09.09.01.00954-7.6
22Hernandez Gaspar, Noe Ellihu0MEXF4B?N+20B8N1.08.08.01.0015230.0
23FIDE 2966128504N?BF8B+25N1.07.07.00.007440.0
24Rangel Guzman, Barbara0MEX=7B18N21NF=?B1.06.06.01.5013210.0
25FIDE 2969705002NFF17B23B0.09.09.00.008300.0
26Rodriguez Ricaud, Jose Angel0MEXF11N?B19NF0.04.54.50.006430.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers