Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Marlo Grobbelaar

1160159271
Overberg (WOS)

Tournament details

Tour Id	20260148
Group Id	20260146
Name	Overberg Schools Open Championship 2026
Section	U11
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
Percent	33.3
Dp	-141.7
Aor	1233.2
Perform	1091.6
Penalties	0
Wins	2
Draws	0
Losses	4
White	4
Black	2
White wins	1
Black wins	1
Default wins	0
Default losses	0
Byes	0
Half byes	0
Rank	20
Final Pos	31
Share Pos	31
Count for rating	Yes

Analysis (Main)

Rating	1200.7
K-factor	20
Score	2
Expected score	2.86
Score - Expected score	-0.86
Rating +/-	-10.3

Analysis (Type)

Rating	1204.9
K-factor	20
Score	2
Expected score	2.83
Score - Expected score	-0.83
Rating +/-	-16.6

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	Steenkamp, L (Le Roux)	WOS		1200	1200	W	1	0.54	0.46	2.9	0.55	0.45	4.8	Yes
2	2026-01-31	Lingenfelder, S (Stephanus)	WOS		1337.8	1367.6	B	0	0.3	-0.3	-3.6	0.27	-0.27	-5.4	Yes
3	2026-01-31	Otto, X (Xavier)	WOS		1143.3	1191.7	W	0	0.61	-0.61	-7.3	0.56	-0.56	-11.2	Yes
4	2026-01-31	Faasen, C (Charles)	WOS		1408	1344.9	W	0	0.3	-0.3	-3.6	0.38	-0.38	-7.6	Yes
5	2026-01-31	Blomerus, T (Thea)	WOS		1200	1200	B	1	0.46	0.54	3.5	0.46	0.54	5.8	Yes
6	2026-01-31	Daniels, S (Skye)	WOS		1110.4	1142.6	W	0	0.65	-0.65	-7.8	0.61	-0.61	-12.2	Yes