CChessStats

XLI Torneo UNED Segovia - Open de Navidad

Open SwissStandard

21 players participated in this 6-round tournament, held from 13 Dec 2025 to 28 Dec 2025 in Segovia, Spain. Top 10 Elo average was 1859, and top seed was Jorge Juan Calvo Cantero (🇪🇸 ESP, 2122).

Jorge Juan Calvo Cantero (🇪🇸 ESP, 2122) won with 4.5/6, ahead of Mariano Sastre Marugan (4.5) and Alberto Bernardo Sanz (4.5). Calvo Cantero shared the lead from round 5, winning on tie-break.

The biggest upset came in round 2: Fernando Gomez Marti (1787) beat Jorge Juan Calvo Cantero (2122), a +335-point gap.

Location
🇪🇸Segovia, Spain
Dates
13 Dec 2025 → 28 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇪🇸Jorge Juan Calvo Cantero2122
Avg top 10
1,859
Participants
21
Federations · 1 represented
🇪🇸Spain×21
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 3 players tied at 4.5/6, decided on Buchholz.

Co-leaders
8
2
1
1
3
3
1.534.56R1R2R3R4R5R6
Sastre Marugan4.5Calvo Cantero4.5Bernardo Sanz4.5Gomez Marti4Caceres de la Calle4Calvo Ruiz3.5
R6 · TIEBREAK CLUSTER

3 players finish on 4.5/6. Calvo Cantero takes the title on Buchholz Cut1 (18.0).

WIN STREAKS · 2 top finishers

Jorge Juan Calvo Cantero 3 wins (R3–R5)Alberto Bernardo Sanz 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Mariano Sastre Marugan*———
2Jorge Juan Calvo Cantero—*
½
0
3Alberto Bernardo Sanz—
½
*
1
4Fernando Gomez Marti—
1
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Calvo Cantero, Jorge Juan2122ESP+18B−5N+11N+10B+4N=3B4.518.018.011.751981-15.0
2Sastre Marugan, Mariano1917ESP+16N=9B+8N=7B=6B+4N4.516.518.013.251932+4.2
3Bernardo Sanz, Alberto1894ESP+20B−4N+19N+5B+7N=1N4.515.515.59.251957+9.0
4Caceres de la Calle, Eduardo1747ESP+21N+3B+5B+6N−1B−2B4.021.021.012.002006+33.0
5Gomez Marti, Fernando1787ESP+17N+1B−4N−3N+15B+7B4.018.018.510.001882+12.8
6Calvo Ruiz, Juan1949ESPF+13N+12B−4B=2N+8B3.516.516.510.251880-6.2
7Gil Martin, Sara1804ESP+11B=12N+9B=2N−3B−5N3.018.521.09.001763-11.5
8Gomez Alonso, Nicolas David1573ESP=10B+18N−2B+13N=9B−6N3.016.516.55.501804+65.6
9Blanco Hernando, Mikel1771ESP+15B=2N−7N+12B=8N−10B3.016.018.08.251692-20.5
10Armesto Robledo, Sebastian Carlos1853ESP=8NF+15B−1N=13B+9N3.015.015.07.751804-5.2
11Castro Aguirre, Daniel1541ESP−7NF−1B=14N+18B+16N2.511.511.52.751706+38.0
12Fresnillo Fresnillo, Pedro1669ESP+19B=7B−6N−9N−16B+18N2.511.011.01.501590-11.4
13Gonzalez Velasco, Ruben1748ESPF−6B+20N−8B=10N+19B2.59.59.51.501651-22.4
14Garcia Nunez, Helena1608ESPFFF=11B+17N+20B2.53.03.01.751805+27.6
15Gonzalez Velasco, Pablo 20070ESP−9N+16B−10N+18B−5NF2.011.511.51.5016440.0
16Herrero Gomez, Jose Maria1583ESP−2B−15NF=17B+12N−11B1.512.012.02.751564-4.2
17Arcones Martin, Isabel1476ESP−5BFF=16N−14BF0.58.08.00.751387-12.4
18Martin Martin, Alberto1585ESP−1N−8BF−15N−11N−12B0.014.514.50.00892-30.8
19San Fabian Ayuso, Juan Javier0ESP−12NF−3BFF−13N0.09.59.50.009700.0
20Anton Sanz, Jose Carlos1577ESP−3NF−13BFF−14N0.09.59.50.00950-17.2
21Matta, Reda0ESP−4BFFFFF0.08.08.00.009470.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets