Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Pieter Van Zyl

1140145286
Overberg (WOS)

Tournament details

Tour Id	20260149
Group Id	20260146
Name	Overberg Schools Open Championship 2026
Section	U13
Rounds	6
Format	Swiss
Type	Rapid
Start	2026-01-31
End	2026-01-31
Submitted	2026-02-01
Rated	2026-02-06
Submit age weight	0.533
Host	Overberg (WOS)
Total time	30
Time weight	0.6
Official results	Official results

General

Games	6
Score	2.5
Percent	41.7
Dp	-70.8
Aor	1217.3
Perform	1146.5
Penalties	0
Wins	2
Draws	1
Losses	3
White	3
Black	3
White wins	0
Black wins	2
Default wins	0
Default losses	0
Byes	0
Half byes	0
Rank	59
Final Pos	37
Share Pos	36
Count for rating	Yes

Analysis (Main)

Rating	1102.9
K-factor	20
Score	2.5
Expected score	2.2
Score - Expected score	0.3
Rating +/-	1.9

Analysis (Type)

Rating	1134.2
K-factor	20
Score	2.5
Expected score	2.49
Score - Expected score	0.01
Rating +/-	0.1

Opponents

Round	Date	Opponent	Fed	Title	Main	Type	Col	Res	Main			Type			Cfr
Round	Date	Opponent	Fed	Title	Main	Type	Col	Res	We	Swe	+/-	We	Swe	+/-	Cfr
1	2026-01-31	Pikeer, J (Jayden)	WOS		1213.9	1231	W	0.5	0.41	0.09	0.6	0.43	0.07	0.7	Yes
2	2026-01-31	Huisamen, I (Isabella)	WOS		1172.3	1141.7	B	1	0.38	0.62	4	0.45	0.55	5.9	Yes
3	2026-01-31	Du Plessis, V (Vera)	WOS		1269.8	1211.9	B	1	0.26	0.74	4.7	0.37	0.63	6.7	Yes
4	2026-01-31	Moses, J (Jivano)	WOS		1179.2	1185.9	W	0	0.45	-0.45	-5.4	0.48	-0.48	-9.6	Yes
5	2026-01-31	Schraader, R (Ruben)	WOS		1257	1282.9	B	0	0.28	-0.28	-3.4	0.29	-0.29	-5.8	Yes
6	2026-01-31	Solomon, M (Monika)	WCT		1211.5	1199	W	0	0.42	-0.42	-5	0.47	-0.47	-9.4	Yes