CChessStats

Torneo ONA Ajedrez Supremo Del Sur- Este Cat Abierta

Open SwissStandard

12 players participated in this 5-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Patillas, Puerto Rico. 2 titled players. Top 10 Elo average was 1761, and top seed was Jaime Rodriguez Santiago (🇵🇷 PUR, FM, 2132).

Joshua Pedrosa Rivera (🇵🇷 PUR, 1836) won with 4.5/5, ahead of Jose A. Lopez Rivera (3.5) and Daniel Sotelo Kohama (3.0). Pedrosa Rivera won solo starting round 3.

The biggest upset came in round 5: Joshua Pedrosa Rivera (1836) beat Daniel Sotelo Kohama (1977), a +141-point gap.

Location
🇵🇷Patillas, Puerto Rico
Dates
10 Oct 2025 → 12 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
Avg top 10
1,761
Participants
12
Titled players · 2
FM×1
WCM×1
Federations · 1 represented
🇵🇷Puerto Rico×12
Top 3

How it unfolded

Top 6 · 5 rounds

Joshua Pedrosa Rivera led from R3; +1.0-point edge over the runner-up.

Co-leaders
3
2
1
1
1
1.52.545R1R2R3R4R5
R3–R5 · LEAD HELD

Joshua Pedrosa Rivera never relinquished the lead after R3; final gap +1.0 over the runner-up.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Joshua Pedrosa Rivera beat Jose A. Lopez Rivera (Black).

R1–R3 · WIN STREAK

Joshua Pedrosa Rivera won 3 in a row (R1–R3).

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Pedrosa Rivera, Joshua1836PUR+6N+12B+2N=4B+3N4.512.012.010.502207+66.8
2Lopez Rivera, Jose A.1793PUR+9B+8N1B+5N=7B3.512.013.07.251868+11.0
3Sotelo Kohama, Daniel1977PUR=5B+10N=4B+8N1B3.012.513.56.001875-10.2
4Rodriguez Santiago, JaimeFM2132PURF+7B=3N=1N+8B3.012.012.08.252040-6.6
5Alvarado Perez, Coralys M.WCM1704PUR=3N=6B+12N2B+9B3.010.010.03.751706-0.4
6Rivera Irizarry, Denzel F.1580PUR1B=5N+11B7N+10N2.511.012.03.501674+22.8
7Burgos Rodriguez, Edison1816PURF4N+10B+6B=2N2.510.010.05.251856+4.2
8Ortiz Ocasio, Jose Antonio1760PUR+11N2B+9N3B4N2.010.511.52.001697-9.2
9Reyes Rivera, Derek R.1472PUR2N+11B8BF5N1.09.59.51.001490+0.4
10Cintron Rivera, Jaime1540PURF3B7N+11N6B1.09.09.01.001508-5.8
11Tirado Vazquez, Luis J.1469PUR8B9N6N10B+12B1.06.56.50.00788-56.0
12Torres De Jesus, Javier0PURF1N5BF11N0.09.59.50.008710.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets