CChessStats

Sbdcu Closed 2025 (U18)

Open SwissStandard

17 players participated in this 6-round tournament, held from 10 May 2025 to 11 May 2025 in Graaff-Reinet, South Africa. Top 10 Elo average was 618, and top seed was Brian Krieger (🇿🇦 RSA, 1679).

Dominic Powell (🇿🇦 RSA, 1525) won with 5.5/6, ahead of Anam Sobayeni (4.5) and Stephan Vorster (4.0). Powell shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 5: Dominic Powell (1525) beat Brian Krieger (1679), a +154-point gap.

Location
🇿🇦Graaff-Reinet, South Africa
Dates
10 May 2025 → 11 May 2025
Time control
Standard: All Moves in 60 Min. Incr. 2 Sec. / /
System
Swiss · 6 rounds
Top seed
🇿🇦Brian Krieger1679
Avg top 10
618
Participants
17
Federations · 1 represented
🇿🇦South Africa×7
Top 3

How it unfolded

Top 6 · 6 rounds

Dominic Powell led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
3
2
1
2
1
1
1.534.56R1R2R3R4R5R6Powell takes lead
R5 · LEADER CHANGE10 May

Dominic Powell takes the sole lead (4.5/5).

WIN STREAKS · 2 top finishers

Dominic Powell 3 wins (R4–R6)Anam Sobayeni 4 wins (R2–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Dominic Powell*
2Anam Sobayeni*
½
3Stephan Vorster
½
*
½
4FIDE 14392143
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Powell, Dominic1525RSA+13N+10B=7N+4B+6N+9B5.515.517.516.001778+34.0
2Sobayeni, Anam0RSAF+?B+?N+14N+11B=3N4.57.07.05.0014960.0
3Vorster, Stephan0RSA=?N=7B+13N=5B+15N=2B4.014.514.58.7515010.0
4FIDE 143921600F+12N+17B1N+10B+8N4.012.512.57.006530.0
5FIDE 143921430F+?N+?B=3N+14B=11N4.09.09.04.0014760.0
6Krieger, Brian1679RSA+12B+17N+14B=11N1BF3.513.513.54.001272-41.2
7Theunissen, Andrew1498RSA+15B=3N=1B8N+16NF3.017.018.06.751453-2.8
8FIDE 143986640F+?B+10N+7B9N4B3.012.012.05.0015210.0
9FIDE 5340158330FF+15N+16B+8B1N3.010.510.55.006530.0
10FIDE 5340024720F1N8B+?N4N+12B2.018.518.52.006530.0
11Fourie, Neelon1476RSAFF+16N=6B2N=5B2.013.013.04.751669+10.0
12Mostert, Michyle0RSA6N4B?B+?N+?B10N2.09.59.50.008690.0
13FIDE 53401567101B=?N3B+?N=?B?N2.09.59.50.006530.0
14FIDE 5340148290FF6N2B5N+16B1.013.013.01.008690.0
15FIDE 1439885007NF9B+?N3B?N1.010.010.00.007010.0
16FIDE 5340147990F+?N11B9N7B14N1.09.09.00.006890.0
17FIDE 5340147640F6B4N?B?B?N0.010.510.50.008690.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets