CChessStats

IV Ranking de Otono Isla Bonita 2025 Rondas 4-7

Open SwissStandard

23 players participated in this 7-round tournament, held from 07 Nov 2025 to 28 Nov 2025 in Los Llanos de Aridane (Santa Cruz de Tenerife), Spain. 2 federations represented. Top 10 Elo average was 1715, and top seed was Siegfried Haertl (🇦🇹 AUT, 1854).

Kevin Acosta Martin (🇪🇸 ESP, 1834) won with 3.0/7, ahead of Valentina Lucia Afonso Lopez (3.0) and Jose Gomez Rodriguez (3.0). Acosta Martin won on tie-break after catching the field in the final round.

The biggest upset came in round 6: Valentina Lucia Afonso Lopez (1644) beat Kevin Acosta Martin (1834), a +190-point gap.

Location
🇪🇸Los Llanos de Aridane (Santa Cruz de Tenerife), Spain
Dates
07 Nov 2025 → 28 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇦🇹Siegfried Haertl1854
Avg top 10
1,715
Participants
23
Federations · 2 represented
🇪🇸Spain×22
🇦🇹Austria×1
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 3 players tied at 3.0/7, decided on Buchholz. Title race narrowed from 10 co-leaders at R4 to 3 at the finish.

Co-leaders
24
24
24
10
5
1
3
23.55.57R1R2R3R4R5R6R7
R7 · TIEBREAK CLUSTER

3 players finish on 3.0/7. Acosta Martin takes the title on Buchholz Cut1 (9.5).

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Valentina Lucia Afonso Lopez beat Kevin Acosta Martin (White).

WIN STREAKS · 2 top finishers

Valentina Lucia Afonso Lopez 3 wins (R4–R7)Jose Gomez Rodriguez 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Acosta Martin, Kevin1834ESPFFF+4N+6B2N+7B3.09.59.56.501879+6.2
2Afonso Lopez, Valentina Lucia1644ESPFFF+19NF+1B+8N3.06.06.06.002534+72.0
3Gomez Rodriguez, Jose1577ESPFFF+23B+11N+17N4B3.05.55.53.001702+10.6
4Loro Garcia de Leon, Jose Juan1633ESPFFF1B+12N=5B+3N2.510.510.56.251736+11.0
5Martin Ramos, Manuel1515ESPFFF10N+19B=4N+9B2.57.57.54.251704+25.6
6Haertl, Siegfried1854AUTFFF8B1N+7N+13B2.09.09.04.001744-12.0
7Martin Gonzalez, Lucas1584ESPFFF+18B+16N6B1N2.07.57.52.501650+6.4
8Salazar Diaz, Jesus1826ESPFFF+6N+10BF2B2.07.07.04.001889+6.4
9Rodriguez Cabrera, Mateo1508ESPFFF16B+18N+20B5N2.06.06.02.00812-28.0
10Lorenzo Ventura, Abel1773ESPFFF+5B8NF+22B2.05.05.03.001776+0.8
11Garcia Cabrera, Ernesto1489ESPFFFF3B+21N+17B2.05.05.02.001676+33.2
12Schauer, Rainer1589ESPFFF+21B4B18N+23B2.04.54.51.001536-5.6
13Ramos Perez, Felipe1718ESPFFF+20N+17BF6N2.04.04.02.001749+2.4
14Chen, Junxiong0ESPFFFF20N+23N+21B2.04.04.01.0014640.0
15Rodriguez Hernandez, Aday Francisco0ESPFFFF+?BF+16N2.03.53.51.5016630.0
16Quinones Mendoza, Rolando1643ESPFFF+9N7B=22N15B1.56.56.52.251542-8.4
17Diaz Leon, Adelto1637ESPFFF+22B13N3B11N1.07.57.50.501373-27.6
18Concepcion D Armengol, Aday0ESPFFF7N9B+12B19N1.07.07.02.0013630.0
19Rodriguez Morales, Jimena1543ESPFFF2B5NF+18B1.06.56.51.00818-30.4
20Fernandez Falcon, Rodrigo0ESPFFF13B+14B9NF1.06.06.02.008030.0
21Martin Gonzalez, Marcos 20181464ESPFFF12N+23B11B14N1.06.06.00.00728-31.2
22Hernandez Hernandez, Alberto Israel1522ESPFFF17NF=16B10N0.54.54.50.751412-7.2
23Acosta Navajas, Jose Juan0ESPFFF3N21N14B12N0.08.08.00.007350.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets