Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Luan Rudolf Johanne Van Der Merwe

1110147448
Overberg (WOS)

Tournament details

Tour Id	20260395
Group Id	20260394
Name	Overberg Schools High School Trials 2026
Section	U15 Boys
Rounds	6
Format	Swiss
Type	Rapid
Start	2026-02-21
End	2026-02-21
Submitted	2026-02-22
Rated	2026-02-23
Submit age weight	1
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	1200.3
Perform	1129.5
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	41
Final Pos	28
Share Pos	28
Count for rating	Yes

Analysis (Main)

Rating	1113.8
K-factor	20
Score	2.5
Expected score	2.39
Score - Expected score	0.11
Rating +/-	1.3

Analysis (Type)

Rating	1151.2
K-factor	20
Score	2.5
Expected score	2.59
Score - Expected score	-0.09
Rating +/-	-1.8

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	2026-02-21	Slingers, B (Brendon)	WOS		1214.2	1199.9	W	0	0.42	-0.42	-5	0.49	-0.49	-9.8	Yes
2	2026-02-21	Pekeur, A (Andrew)	WOS		1171.9	1253.4	B	1	0.39	0.61	7.3	0.34	0.66	13.2	Yes
3	2026-02-21	Hanekom, B (Benjamin)	WOS		1199.9	1199.9	W	0.5	0.44	0.06	0.7	0.49	0.01	0.2	Yes
4	2026-02-21	Jiri, H (Henry)	WOS		1155.6	1160.7	B	1	0.41	0.59	7.1	0.45	0.55	11	Yes
5	2026-02-21	Uys, E (Eli)	WOS		1320.5	1320.6	W	0	0.3	-0.3	-3.6	0.34	-0.34	-6.8	Yes
6	2026-02-21	Suriyari, P (Prosper)	WOS		1139.6	1132.9	B	0	0.43	-0.43	-5.2	0.48	-0.48	-9.6	Yes