CChessStats

IRT Arnoldo Ellerman

Open SwissStandard

20 players participated in this 7-round tournament, held from 04 Aug 2025 to 25 Aug 2025 in Caba, Argentina. 4 federations represented. Top 10 Elo average was 1822, and top seed was Emiliano Carlos Albornoz (🇦🇷 ARG, 1944).

Juan Santiago Bayinay (🇦🇷 ARG, 1778) won with 5.5/7, ahead of Manuel Sanz (5.0) and Gustavo Altopiedi (5.0). Bayinay won solo starting round 3.

The biggest upset came in round 7: Mauro Varessi (1608) beat Mark Mezhenskyy (1926), a +318-point gap.

Location
🇦🇷Caba, Argentina
Dates
04 Aug 2025 → 25 Aug 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇦🇷Emiliano Carlos Albornoz1944
Avg top 10
1,822
Participants
20
Federations · 4 represented
🇦🇷Argentina×17
🇧🇷Brazil×1
🇷🇺Russia×1
🇨🇷Costa Rica×1
Top 3

How it unfolded

Top 6 · 7 rounds

Juan Santiago Bayinay led from R3; +0.5-point edge over the runner-up.

Co-leaders
10
2
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Bayinay5.5Altopiedi5Sanz5Albornoz4.5Rusinov4.5Roldan4
R3–R7 · LEAD HELD

Juan Santiago Bayinay held the sole lead from R3 through R7 without losing it.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Juan Santiago Bayinay beat Gustavo Altopiedi (Black).

WIN STREAKS · 3 top finishers

Juan Santiago Bayinay 3 wins (R1–R3)Gustavo Altopiedi 3 wins (R5–R7)Manuel Sanz 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Juan Santiago Bayinay*
1
½
½
2Gustavo Altopiedi
0
*
0
1
3Manuel Sanz
½
1
*
½
4Emiliano Carlos Albornoz
½
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Bayinay, Juan Santiago1778ARG+15B+3N+11N=4B+7N=6B=2B5.525.527.520.752039+46.4
2Sanz, Manuel1797ARG−19N+5B+16N+3B=4N+7B=1N5.025.026.020.001883+14.2
3Altopiedi, Gustavo1940ARG+14N−1B+9B−2N+12B+13N+4N5.023.525.515.001915-0.8
4Albornoz, Emiliano Carlos1944ARG+13B=6N+19B=1N=2B+11N−3B4.524.525.513.251889-6.8
5Rusinov, Igor0ARG+17B−2N+13B−11B+9N=8N+6B4.521.523.013.0018290.0
6Roldan, Carlos Daniel1850ARG+12B=4B=7N=8N+11B=1N−5N4.025.528.515.001909+9.8
7Paredes, Ezequiel1690ARG+18B=9N=6B+10N−1B−2N+17N4.023.024.09.751766+24.0
8Hernandez, Carlos Marcelo1755ARG+20N−11B+18N=6BF=5B+16N4.014.514.57.251822+15.2
9Romaris, Juan Martin1883ARG+16N=7B−3NF−5B+10N+13B3.520.520.59.001856-1.8
10Desanzo, Juan Carlos1629ARG−11N+20B=14N−7B+17N−9B+18N3.515.015.54.001660+2.6
11Mezhenskyy, Mark1926ARG+10B+8N−1B+5N−6N−4B−12N3.026.029.012.001636-44.4
12Varessi, Mauro1608ARG−6N−13N+15B+18B−3NF+11B3.018.019.06.001705+9.8
13Bakulov, Fedor1651RUS−4N+12B−5N+14BF−3B−9N2.022.523.55.001731+16.0
14Lalli, Maximiliano1640ARG−3B+15N=10B−13N=16BFF2.017.017.54.501601-6.6
15Lungov, Felipe1520BRA−1N−14B−12N+20B+18N−17BF2.013.513.51.501398-29.2
16Yalet, Nestor1626ARG−9B+17N−2BF=14NF−8B1.516.016.02.501598-4.4
17D Angiola, Mario1660ARG−5N−16B=20NF−10B+15N−7B1.516.016.02.251445-29.0
18Novo, Juan Ignacio0ARG−7NF−8B−12N−15B+20N−10B1.017.017.00.5013450.0
19Francia Roa, Victor Ricardo1567CRC+2BF−4NFFFF1.011.511.55.001870+13.8
20Diaz, Camilo1505ARG−8B−10N=17B−15NF−18BF0.514.014.00.751319-31.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets