Chess South Africa Ratings Database

PLAYER PAGE

Personal

Slabbert, WJ (William John)

Chess SA id

167035022

FIDE id

Date of birth

1967-11-28 (Adult)

Gender

Male

Region

Ethekwini (KED)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-10-30

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1218.3	1229	1143	1143
Raw rating	1218.3	1229	1143	1143
Weighted rating	1218.3	1229	1143	1143
Weighted performance	0	0	0	0
Floor	718.3	729	643	643
K-factor	36	36	40	40
Min/Max rating change allowed	161.5	159.1	179.8	179.8
Highest rating	1229.8 2018-09-01	1230.2 2018-09-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1218.3 2024-02-01	1229 2024-02-01	1143 2024-02-01	1143 2024-02-01
Highest weighted rating	1218.3 2025-02-01	1229 2025-02-01	1143 2024-11-01	1143 2024-11-01
Highest weighted performance	1229.8 2018-09-01	1230.2 2018-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1218.3	1229	1143	1143
Analysis
Rating	1218.3	1229	1143	1143
Raw rating	1218.3	1229	1143	1143
Weighted rating	1218.3	1229	1143
Weighted performance	0	0	0
K-factor	36	36	40	40
Floor	718.3	729	643	643
Max/Min rating change allowed	161.5	159.1	179.8	179.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1218.3	1229	1143	1143
New weighted rating	1218.3	1229	1143	1143
New weighted performance	0	0	0	0
Temp new rating	1218.3	1229	1143	1143
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1218.3	1229	1143	1143
New K-factor	36	36	40	40
New floor	718.3	729	643	643

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	109	109

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Ethekwini (KED)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	35	15	42.86	-60.7	1281.2	1220.5
Standard	35	15	42.86	-60.7	1281.2	1220.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1218.3	1229	1143	1143
2025-09-01	1218.3	1229	1143	1143
2025-08-01	1218.3	1229	1143	1143
2025-07-01	1218.3	1229	1143	1143
2025-06-01	1218.3	1229	1143	1143
2025-05-01	1218.3	1229	1143	1143
2025-04-01	1218.3	1229	1143	1143
2025-03-01	1218.3	1229	1143	1143
2025-02-01	1218.3	1229	1143	1143
2025-01-01	1218.3	1229	1143	1143
2024-12-01	1218.3	1229	1143	1143
2024-11-01	1218.3	1229	1143	1143
2024-10-01	1218.3	1229	1143	1143
2024-09-01	1218.3	1229	1143	1143
2024-08-01	1218.3	1229	1143	1143
2024-07-01	1218.3	1229	1143	1143
2024-06-01	1218.3	1229	1143	1143
2024-08-01	1218.3	1229	1143	1143
2024-04-01	1218.3	1229	1143	1143
2024-03-01	1218.3	1229	1143	1143
2024-02-01	1218.3	1229	1143	1143
2024-01-01	1218.3	1229	1143	1143
2023-12-01	1218.3	1229	1143	1143
2023-11-01	1218.3	1229	1143	1143

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SAPS National Individual Chess Championship 2019 (Men)	2019-10-23	2019-10-25	Standard	Frances Baard (NCF)	9	8	3.5	Yes	Analysis
2	SAPS National Team Chess Championship 2019	2019-10-26	2019-10-30	Standard	Frances Baard (NCF)	9	9	4.5	Yes	Analysis
3	SAPS National Individual Championship 2018 (Men)	2018-09-12	2018-09-15	Standard	Xhariep (FXT)	9	9	4	Yes	Analysis
4	SAPS National Team Championship 2018	2018-09-11	2018-09-11	Standard	Xhariep (FXT)	9	9	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament SAPS National Team Chess Championship 2019				Tournament SAPS National Team Chess Championship 2019
		date 2019-10-28	rnd 6	type Standard	result 1	date 2019-10-28	rnd 7	type Standard	result 1
		Opponent Legoale, M (Mi)				Opponent Mgadi, A (Aubrey)
2	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-25	rnd 7	type Standard	result 1	date 2019-10-25	rnd 8	type Standard	result 1
		Opponent Mncwabe, B (Bojas)				Opponent Sibiya, IS (Sotobe)
3	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-23	rnd 2	type Standard	result 0.5	date 2019-10-24	rnd 3	type Standard	result 1
		Opponent Molefe, GM (Michael)				Opponent Sparrius, T (Tiaan)

#	Games	Start				End
1	2	Tournament SAPS National Team Chess Championship 2019				Tournament SAPS National Team Chess Championship 2019
		date 2019-10-28	rnd 6	type Standard	result 1	date 2019-10-28	rnd 7	type Standard	result 1
		Opponent Legoale, M (Mi)				Opponent Mgadi, A (Aubrey)
2	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-25	rnd 7	type Standard	result 1	date 2019-10-25	rnd 8	type Standard	result 1
		Opponent Mncwabe, B (Bojas)				Opponent Sibiya, IS (Sotobe)
3	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-23	rnd 2	type Standard	result 0.5	date 2019-10-24	rnd 3	type Standard	result 1
		Opponent Molefe, GM (Michael)				Opponent Sparrius, T (Tiaan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament SAPS National Team Chess Championship 2019				Tournament SAPS National Team Chess Championship 2019
		date 2019-10-28	rnd 6	type Standard	result 1	date 2019-10-28	rnd 7	type Standard	result 1
		Opponent Legoale, M (Mi)				Opponent Mgadi, A (Aubrey)
2	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-25	rnd 7	type Standard	result 1	date 2019-10-25	rnd 8	type Standard	result 1
		Opponent Mncwabe, B (Bojas)				Opponent Sibiya, IS (Sotobe)
3	2	Tournament SAPS National Individual Championship 2018				Tournament SAPS National Individual Championship 2018
		date 2018-09-14	rnd 8	type Standard	result 1	date 2018-09-15	rnd 9	type Standard	result 1
		Opponent Phindani, S (Simon)				Opponent Ntuli, SB (Siphesihle)

#	Games	Start				End
1	2	Tournament SAPS National Team Chess Championship 2019				Tournament SAPS National Team Chess Championship 2019
		date 2019-10-28	rnd 6	type Standard	result 1	date 2019-10-28	rnd 7	type Standard	result 1
		Opponent Legoale, M (Mi)				Opponent Mgadi, A (Aubrey)
2	2	Tournament SAPS National Individual Chess Championship 2019				Tournament SAPS National Individual Chess Championship 2019
		date 2019-10-25	rnd 7	type Standard	result 1	date 2019-10-25	rnd 8	type Standard	result 1
		Opponent Mncwabe, B (Bojas)				Opponent Sibiya, IS (Sotobe)
3	2	Tournament SAPS National Individual Championship 2018				Tournament SAPS National Individual Championship 2018
		date 2018-09-14	rnd 8	type Standard	result 1	date 2018-09-15	rnd 9	type Standard	result 1
		Opponent Phindani, S (Simon)				Opponent Ntuli, SB (Siphesihle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Sithari ,NK (Ndivhuwo Kevin)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Sithari ,NK (Ndivhuwo Kevin)	2	1401.7	976.7	2	1401.7	976.7	0	0	0	0	0	0
2	Mncwabe ,B (Bojas)	2	2	425	2	2	425	0	0	0	0	0	0
2	Mncwabe ,B (Bojas)	2	1138.8	1563.8	2	1126.2	1563.8	0	0	0	0	0	0
3	Mashego ,SN (Sipho)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Mashego ,SN (Sipho)	2	1224.4	799.4	2	1229.6	799.4	0	0	0	0	0	0
4	Phahlane ,LJ (Lesiba Joel)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Phahlane ,LJ (Lesiba Joel)	2	1684.7	1259.7	2	1684.7	1259.7	0	0	0	0	0	0
5	Muizenheimer ,A (Ashley)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Muizenheimer ,A (Ashley)	1	1344.4	919.4	1	1365.8	919.4	0	0	0	0	0	0
6	Ngwenya ,FZ (Freddy Zwelinzima)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ngwenya ,FZ (Freddy Zwelinzima)	1	1270.1	845.1	1	1257.6	845.1	0	0	0	0	0	0
7	Ntuli ,SB (Siphesihle)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ntuli ,SB (Siphesihle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Sibiya ,IS (Sotobe)	1	1	425	1	1	425	0	0	0	0	0	0
8	Sibiya ,IS (Sotobe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Tlhodi ,T (Tshegofatso)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Tlhodi ,T (Tshegofatso)	1	1366.6	941.6	1	1374.2	941.6	0	0	0	0	0	0
10	Mashita ,AK (Abram Kuni)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mashita ,AK (Abram Kuni)	1	1446.6	1021.6	1	1446.6	1021.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Slabbert, WJ (William John)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms