CChessStats

Torneo Clasificatorio de Tercera Division, ARAJA 2025

Open SwissStandard

17 players participated in this 7-round tournament, held from 09 Aug 2025 to 10 Aug 2025 in San Ramon, Costa Rica. Top 10 Elo average was 1632, and top seed was Carlos Andres Leon Villalobos (🇨🇷 CRC, 1691).

Carlo Cesar Ugalde Chaves (🇨🇷 CRC, 1634) won with 5.5/7, ahead of Mauricio Jose Elizondo Zumbado (5.5) and Hendrik Estrada Rodriguez (5.0). Ugalde Chaves took the lead from round 6, winning on tie-break.

The biggest upset came in round 1: Isaac Antonio Leiva Coto (1458) beat Fabian Campos Prendas (1687), a +229-point gap.

Location
🇨🇷San Ramon, Costa Rica
Dates
09 Aug 2025 → 10 Aug 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇨🇷Carlos Andres Leon Villalobos1691
Avg top 10
1,632
Participants
17
Federations · 1 represented
🇨🇷Costa Rica×16
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R6; 2 players tied at 5.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
6
1
3
2
1
1
2
23.55.57R1R2R3R4R5R6R7Estrada Rodriguez takes leadUgalde Chaves takes lead
Ugalde Chaves5.5Elizondo Zumbado5.5Estrada Rodriguez5Gonzalez Arguedas4.5Leiva Coto4Bejarano Tames4
R5 · LEADER CHANGE10 Aug

Hendrik Estrada Rodriguez takes the sole lead (4.5/5).

R7 · TIEBREAK CLUSTER

2 players finish on 5.5/7. Ugalde Chaves takes the title on Buchholz Cut1 (25.0).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Carlo Cesar Ugalde Chaves drew with Mauricio Jose Elizondo Zumbado (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Carlo Cesar Ugalde Chaves*
½
1
½
2Mauricio Jose Elizondo Zumbado
½
*
0
1
3Hendrik Estrada Rodriguez
0
1
*—
4Felipe Gonzalez Arguedas
½
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Ugalde Chaves, Carlo Cesar1634CRC+9N=2B=8N+13B+7N+3N=4B5.525.027.020.251802+51.6
2Elizondo Zumbado, Mauricio Jose1650CRC+17B=1N−3B+4B+11N+5B+7N5.525.025.017.251777+38.8
3Estrada Rodriguez, Hendrik1633CRC=8N+14B+2N+12B+5N−1B=10B5.024.026.017.251752+44.4
4Gonzalez Arguedas, Felipe1534CRC+7B=11N=5B−2N+12N+9B=1N4.524.026.515.001694+62.4
5Bejarano Tames, Michael Andres1475CRC+13N+10B=4N+11B−3B−2N=6B4.024.526.511.751571+29.6
6Leiva Coto, Isaac Antonio1458CRC+15N−8B−12N+14B+13N=7B=5N4.017.519.09.251605+45.6
7Rojas Mora, Jose Elias1593CRC−4N+15B+14N+8B−1B=6N−2B3.525.026.59.001609+4.8
8Arias Arguello, Roberto1670CRC=3B+6N=1B−7N−9B+11N=12B3.523.526.013.001587-31.6
9Rosales Gonzalez, Jessica1582CRC−1BF−13N+17B+8N−4N+15B3.017.017.05.001632+5.2
10Bonilla Castillo, Cindy Julieth1517CRCF−5N−11B+16N=15B+13B=3N3.016.016.06.251553+8.8
11Rodriguez Gonzalez, Santiago1553CRC+12N=4B+10N−5N−2B−8B−14N2.523.025.07.751478-61.2
12Sotelo Izaguirre, Isaac David1544CRC−11B+17N+6B−3N−4BF=8N2.519.519.55.751438-18.6
13Cruz Badilla, Francisco Antonio0CRC−5B+16N+9B−1N−6B−10NF2.020.520.54.0014360.0
14Urena Matamoros, Sebastian1631CRC=16B−3N−7B−6NF=15N+11B2.017.517.53.751490-44.0
15Campos Prendas, Fabian1687CRC−6B−7N=16BF=10N=14B−9N1.516.516.53.001384-94.4
16Leon Villalobos, Carlos Andres1691CRC=14N−13B=15N−10BFFF1.08.58.51.751486-32.8
17FIDE 65027090—−2N−12BF−9NFFF0.011.011.00.008030.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets