CChessStats

Cape Town Open Chess Championship 2026 (Advanced)

Open SwissStandard

25 players participated in this 6-round tournament, held from 12 Jun 2026 to 15 Jun 2026 in Cape Town, South Africa. 2 federations represented. Top 10 Elo average was 1711, and top seed was Benjamin Dubbeld (🇿🇦 RSA, 1735).

Aleks Guo (🇿🇦 RSA, 1649) won with 6.0/6, ahead of Mohammed Zayan Khan (5.0) and Cecil Ohlson (4.5). Guo won solo starting round 4.

The biggest upset came in round 2: Asanda Vengeni (1612) beat Roland C. Willenberg (1730), a +118-point gap.

Location
🇿🇦Cape Town, South Africa
Dates
12 Jun 2026 → 15 Jun 2026
Time control
Standard: 90 minutes for game with 10 sec increment from move 1
System
Swiss · 6 rounds
Top seed
🇿🇦Benjamin Dubbeld1735
Avg top 10
1,711
Participants
25
Federations · 2 represented
🇿🇦South Africa×24
FIDE (no federation)×1
Top 3

How it unfolded

Top 6 · 6 rounds

Aleks Guo led from R4; +1.0-point edge over the runner-up.

Co-leaders
11
5
2
1
1
1
1.534.56R1R2R3R4R5R6
R4–R6 · LEAD HELD

Aleks Guo never relinquished the lead after R4; final gap +1.0 over the runner-up.

WIN STREAKS · 2 top finishers

Aleks Guo 6 wins (R1–R6)Mohammed Zayan Khan 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Guo, Aleks1649RSA+20N+12B+6N+5B+4N+3B6.019.521.021.002505+115.6
2Khan, Mohammed Zayan1688RSA+22N+9B5N+12B+7N+6B5.017.518.514.501911+56.0
3Ohlson, Cecil1704RSA+18N+13B=4N+7B+5N1N4.521.023.014.751842+20.6
4Siwela, Sphamandla Thal1691RSA+24B+15N=3B+8N1B+11N4.520.020.512.251870+55.6
5Budge, Daniel1690RSA+21B+19N+2B1N3B+15N4.020.021.511.001787+15.4
6Moja, Malesela0RSA+11B=14N1B+24N+15B2N3.520.020.58.0016790.0
7Vengeni, Asanda1612RSA=8B+10N+14B3N2B+16N3.519.522.010.751743+44.8
8Mthethwa, Nkanyiso1720RSA=7N=20B+13N4B=12N+17B3.516.518.09.501726+1.2
9Dubbeld, Benjamin1735RSA+25B2N16B+22N+13B=10N3.515.015.05.751709-7.6
10Willenberg, Roland C.1730RSA13N7B+18N+23B+16N=9B3.514.515.57.251701-4.0
11Van Der Spuy, Albert1661RSA6N+18B=24N+20B+17N4B3.514.014.56.251813+41.2
12November, Byron1708RSA+16B1N+19B2N=8B=14N3.020.022.07.751655-17.6
13Booley, Sayed Ridha1619RSA+10B3N8B+19N9N+22B3.017.018.06.501683+21.2
14Maruma, Kamogelo1630RSA+23N=6B7N17B+20N=12B3.014.015.05.751664+9.2
15Hibbins, Graeme1710RSA+17N4B+23N=16B6N5B2.517.018.04.751659-14.0
16Mbilini, Hlomla1646RSA12N+22B+9N=15N10B7B2.516.017.05.751628-7.2
17November, Edwin J.1651RSA15B=21N+25B+14N11B8N2.514.014.03.751604-8.4
18Mansfield-Scaddan, Sefton1633RSA3B11N10B+21N19B+20B2.015.016.53.001550-13.2
19Shelton, Brian1595RSAF5B12N13B+18N+23N2.013.013.03.001582-2.2
20Galleid, Stephen1730RSA1B=8N+21B11N14B18N1.518.019.53.251460-42.6
21Solomon, Aubrey1627RSA5N=17B20N18BF+25N1.510.010.01.251515-15.0
22Jenkins, Tauriq1612RSA2B16NF9B+25N13N1.014.014.00.001421-23.2
23Green, Lyndon1619RSA14B+25N15B10NF19B1.011.511.50.001416-49.6
24Maxwell, Tristan1616RSA4NF=11B6BFF0.512.512.51.751483-13.6
25Whyatt, Benjamin1616FID9N23B17NF22B21B0.09.59.50.00849-91.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets