CChessStats

Torneio de Xadrez Sonangol 50 Anos-Open 1-7

Open SwissStandard

18 players participated in this 7-round tournament, held from 20 Feb 2026 to 28 Feb 2026 in Luanda, Angola. 9 titled players. Top 10 Elo average was 2166, and top seed was David Silva (🇦🇴 ANG, IM, 2334).

Sergio Miguel (🇦🇴 ANG, FM, 2270) won with 6.5/7, ahead of Jaime Sonhy (6.5) and Alexandre Prospero (4.5). Miguel shared the lead from round 1, winning on tie-break.

The biggest upset came in round 6: Lino Lopes Belchior (1880) beat Luther Santos (FM, 2109), a +229-point gap.

Location
🇦🇴Luanda, Angola
Dates
20 Feb 2026 → 28 Feb 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇦🇴IMDavid Silva2334
Avg top 10
2,166
Participants
18
Titled players · 9
IM×4
FM×2
CM×3
Federations · 1 represented
🇦🇴Angola×18
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 2 players tied at 6.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
7
2
3
2
2
2
2
23.55.57R1R2R3R4R5R6R7
Miguel6.5Sonhy6.5Prospero4.5Gama4Sousa4Silva4
R7 · TIEBREAK CLUSTER

2 players finish on 6.5/7. Miguel takes the title on Buchholz Cut1 (24.5).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

FM Sergio Miguel drew with CM Jaime Sonhy (Black).

WIN STREAKS · 2 top finishers

FM Sergio Miguel 4 wins (R4–R7)CM Jaime Sonhy 4 wins (R4–R7)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMSergio Miguel*
½
—
1
2CMJaime Sonhy
½
*——
3Alexandre Prospero——*
0
4Edivaldo Jr Gama
0
—
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Miguel, SergioFM2270ANG+11N+8B=2N+12B+5N+4B+9N6.524.527.524.252548+35.8
2Sonhy, JaimeCM2157ANG+18N+4B=1B+8N+7B+11N+6B6.524.526.022.752554+55.2
3Prospero, Alexandre2105ANG+9B−14N+10B−5N=13N+7B+12N4.520.523.015.002173+14.2
4Silva, DavidIM2334ANG+16B−2N+6B−7N+8B−1N+11B4.027.029.012.502165-28.0
5Gama, Edivaldo Jr2128ANG+10N=12B=7N+3B−1B−6N+13B4.025.028.014.252160+6.2
6Sousa, Estevao2013ANG=7N+17B−4N=11B+12N+5B−2N4.024.026.012.252178+30.0
7Simoes, JoaoCM2124ANG=6B+16N=5B+4B−2N−3N=10B3.526.528.511.752119-1.4
8Oliveira, LucianoIM2134ANG+13B−1N+9B−2B−4N=16N+18B3.525.527.09.002109-4.6
9Belchior, Lino Lopes1880ANG−3N+18B−8N=10N+17B+14N−1B3.522.524.07.752080+33.8
10Andrade, Pedro2017ANG−5B+15N−3N=9B+18N=12B=7N3.521.022.59.002073+10.6
11Da Costa, Joaquim2030ANG−1B=13N+15B=6N+14B−2B−4N3.026.529.08.502083+8.0
12Domingos, CatarinoIM2219ANG+15B=5N+14B−1N−6B=10N−3B3.025.027.58.752046-32.6
13Cambando, JoseCM2018ANG−8N=11B+17N−14N=3B+15B−5N3.020.022.08.252012-1.6
14Santos, LutherFM2109ANG=17N+3B−12N+13B−11N−9B−16N2.519.021.08.501931-33.8
15Agnelo, AmorimIM2028ANG−12N−10B−11N=18B+16B−13N+17B2.516.518.04.751939-17.8
16Dias, Vanderson2077ANG−4N−7B=18N−17B−15N=8B+14B2.018.019.55.001935-27.4
17Segunda, Angelo1902ANG=14B−6N−13B+16N−9N=18B−15N2.017.519.04.001863-7.8
18Sapalo, Gabriel2023ANG−2B−9N=16B=15N−10B=17N−8N1.521.523.53.251798-38.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets