CChessStats

Campeonato de Tercera de Gipuzkoa 2025 Zonal Donostia Rondas 4-7

Open SwissStandard

24 players participated in this 7-round tournament, held from 01 Nov 2025 to 22 Nov 2025 in Donostia, Spain. 2 federations represented. Top 10 Elo average was 1604, and top seed was Joseba Iglesias Liroz (🇪🇸 ESP, 1692).

Iosu Used Zabalegui (🇪🇸 ESP, 1610) won with 4.0/7, ahead of Inigo Alcorta Lejarreta (3.0) and Urko Vallejo Perez (3.0). Used Zabalegui shared the lead from round 5 and broke clear in the final round.

The biggest upset came in round 7: Urko Vallejo Perez (1588) beat Joseba Iglesias Liroz (1692), a +104-point gap.

Location
🇪🇸Donostia, Spain
Dates
01 Nov 2025 → 22 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
Avg top 10
1,604
Participants
24
Federations · 2 represented
🇪🇸Spain×20
🇵🇪Peru×1
Top 3

How it unfolded

Top 6 · 7 rounds

Iosu Used Zabalegui led from R7; +1.0-point edge over the runner-up. Title race converged from 9 co-leaders at R4 to 1 by R7.

Co-leaders
25
25
25
9
4
2
1
23.55.57R1R2R3R4R5R6R7
R7–R7 · LEAD HELD

Iosu Used Zabalegui never relinquished the lead after R7; final gap +1.0 over the runner-up.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Iosu Used Zabalegui beat Inigo Alcorta Lejarreta (Black).

WIN STREAKS · 2 top finishers

Iosu Used Zabalegui 4 wins (R4–R7)Inaki Ezkai Ormazabal 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Used Zabalegui, Iosu1610ESPFFF+11N+12B+2N+4B4.09.09.09.002459+60.8
2Alcorta Lejarreta, Inigo1650ESPFFF+13B+3N1B+8N3.010.510.56.501744+18.8
3Vallejo Perez, Urko1588ESPFFF+22N2B+6N+7N3.08.08.05.001731+11.6
4Ezkai Ormazabal, Inaki0ESPFFF+19N+17B+11N1N3.07.57.53.5016460.0
5Irigaray Ferreira, Jon1423ESPFFF+21N+20B17N+18N3.04.04.03.00728-14.0
6Ezkai Vicario, Asier1507ESPFFF=14B+10N3B+19N2.57.57.53.751555+7.6
7Iglesias Liroz, Joseba1692ESPFFF+17N=11B+12N3B2.57.07.03.251706+4.4
8Almandoz Zapiain, Santiago1424ESPFFF+18B13N+24B2B2.05.55.51.00789-23.6
9Vazquez Altuna, Alfonso1522ESPFFF12NF+18B+17N2.03.53.52.001580+6.0
10Ruiz Tolosa, Inigo1519ESPFFFF6B+20N+22B2.03.53.51.00685-22.0
11Lin, Zhian1664ESPFFF1B=7N4B+14N1.511.011.02.751476-23.2
12Elustondo Otaegui, Aitor1642ESPFFF+9B1N7B=16N1.510.010.02.751496-11.0
13Legorburu Echeveste, Ekai1540ESPFFF2N+8B14N=15B1.58.08.02.751566+6.4
14Leiva Gonzalez, Leander0PERFFF=6NF+13B11B1.56.56.52.7515700.0
15Lera Manterola, Gontzal Jokin1615ESPFFFFF+23B=13N1.51.51.50.751528-2.4
16Garcia De Salazar Bilbao, Jon0ESPFFFF+22BF=12B1.51.51.50.7516320.0
17Infante Arranz, Sergio1516ESPFFF7B4N+5B9B1.010.510.53.001416-17.6
18FIDE 947406070FFF8N+21B9N5B1.08.08.01.006580.0
19Gorostarzu Sanchez, Ekhi0ESPFFF4BF+22N6B1.07.07.00.006850.0
20FIDE 5530085530FFF+23N5N10BF1.05.05.00.006690.0
21FIDE 5530085450FFF5B18NF+23B1.04.04.00.006150.0
22Reyes Saavedra, Juan Manuel0ESPFFF3B16N19B10N0.07.57.50.007550.0
23Abancens Alvarez, Iker0ESPFFF20BF15N21N0.03.53.50.008150.0
24Used Garzon, Ignacio Jesus0ESPFFFFF8NF0.02.02.00.006340.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets