Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Zane van der Berg

1120321229
Ekurhuleni (GE)

Tournament details

Tour Id	20251669
Group Id	20251667
Name	RMS Rapid Chess Open 31 May 2025
Section	U13
Rounds	6
Format	Round-Robin
Type	Rapid
Start	2025-05-31
End	2025-05-31
Submitted	2025-05-31
Rated	2025-05-31
Submit age weight	1
Host	Sedibeng (GSV)
Total time	30
Time weight	0.604
Official results	Official results

General

Games	6
Score	2.5
Percent	41.7
Dp	-70.8
Aor	1227.3
Perform	1156.5
Penalties	0
Wins	2
Draws	1
Losses	3
White	3
Black	3
White wins	2
Black wins	0
Default wins	0
Default losses	0
Byes	0
Half byes	0
Rank	18
Final Pos	16
Share Pos	13
Count for rating	Yes

Analysis (Main)

Rating	1200
K-factor	20
Score	2.5
Expected score	2.81
Score - Expected score	-0.31
Rating +/-	-3.7

Analysis (Type)

Rating	1200
K-factor	20
Score	2.5
Expected score	2.38
Score - Expected score	0.12
Rating +/-	2.4

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	2025-05-31	Bosman, J (Johan)	GE		1296.5	1384.7	B	0	0.35	-0.35	-4.2	0.24	-0.24	-4.8	Yes
2	2025-05-31	Pretorius, W (Wihan)	GE		1185.6	1280	B	0.5	0.48	0.02	0.2	0.37	0.13	2.6	Yes
3	2025-05-31	Joubert, C (Christopher)	GSV		1200	1200	W	1	0.54	0.46	5.5	0.54	0.46	9.2	Yes
4	2025-05-31	Bosman, J (Johan)	GE		1296.5	1384.7	W	0	0.43	-0.43	-5.2	0.33	-0.33	-6.6	Yes
5	2025-05-31	Pretorius, W (Wihan)	GE		1185.6	1280	W	1	0.56	0.44	5.3	0.45	0.55	11	Yes
6	2025-05-31	Joubert, C (Christopher)	GSV		1200	1200	B	0	0.46	-0.46	-5.5	0.46	-0.46	-9.2	Yes