Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, S (Schalk)

Chess SA id

191006869

FIDE id

Date of birth

1991-06-23 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1283.7	1298.6	1300	1293.5
Raw rating	1281.3	1298.6	1300	1223
Weighted rating	1283.7	1298.6	1299.7	1293.5
Weighted performance	0	0	0	0
Floor	783.9	798.6	800	800
K-factor	36	36	36	36
Min/Max rating change allowed	147.7	144.1	143.8	160.5
Highest rating	1387.4 2019-07-01	1384.9 2019-07-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1283.9 2024-02-01	1298.6 2024-02-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1283.9 2025-02-01	1298.6 2024-07-01	1296.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1387.4 2019-07-01	1384.9 2019-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.2	0	0	-5.6
New rating	1283.5	1298.6	1300	1287.9
Analysis
Rating	1283.7	1298.6	1300	1293.5
Raw rating	1281.3	1298.6	1300	1223
Weighted rating	1283.7	1298.6	1299.7
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	783.9	798.6	800	800
Max/Min rating change allowed	147.7	144.1	143.8	160.5
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	1281.3	1298.6	1300	1223
New weighted rating	1283.5	1298.6	1300	1287.9
New weighted performance	0	0	0	0
Temp new rating	1283.5	1298.6	1300	1287.9
Temp new rating +/-	-0.2	0	0	-5.6
Final new rating +/-	-0.2	0	0	-5.6
New rating	1283.5	1298.6	1300	1287.9
New K-factor	36	36	36	36
New floor	783.9	798.6	800	800

Item	Main	Standard	Blitz
	0	0	0
	7	0	7
	0	0	0
	0	0	0
	5	5	0
	0	0	0
History	27	20	7

Games since
	Main 7	Standard 0		Rapid 0		Blitz 7
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
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	7	2.5	35.71	-121.4	1364.5	1243.1
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	7	2.5	35.71	-121.4	1364.5	1243.1
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	17	10.5	61.76	100	1263	1363
Standard	10	8	80	255	1192	1447
Rapid	0	0	0	0	0	0
Blitz	7	2.5	35.71	-121.4	1364.5	1243.1

Date	Main	Standard	Rapid	Blitz
2025-11-01	1281.3	1298.6	1300	1223
2025-09-30	1283.9	1298.6	1300	1300
2025-09-01	1283.9	1298.6	1300	1300
2025-08-01	1283.9	1298.6	1300	1300
2025-07-01	1283.9	1298.6	1300	1300
2025-06-01	1283.9	1298.6	1300	1300
2025-05-01	1283.9	1298.6	1300	1300
2025-04-01	1283.9	1298.6	1300	1300
2025-03-01	1283.9	1298.6	1300	1300
2025-02-01	1283.9	1298.6	1300	1300
2025-01-01	1283.9	1298.6	1300	1300
2024-12-01	1283.9	1298.6	1300	1300
2024-11-01	1283.9	1298.6	1300	1300
2024-10-01	1283.9	1298.6	1300	1300
2024-09-01	1283.9	1298.6	1300	1300
2024-08-01	1283.9	1298.6	1300	1300
2024-07-01	1283.9	1298.6	1300	1300
2024-09-01	1283.9	1298.6	1300	1300
2024-05-01	1283.9	1298.6	1300	1300
2024-04-01	1283.9	1298.6	1300	1300
2024-03-01	1283.9	1298.6	1300	1300
2024-02-01	1283.9	1298.6	1300	1300
2024-01-01	1283.9	1298.6	1300	1300
2023-12-01	1283.9	1298.6	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess-in-the-Vaal Academy Blitz Open 25 Oct 2025 (A)	2025-10-25	2025-10-25	Blitz	Sedibeng (GSV)	7	7	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess-in-the-Vaal Academy Blitz Open 25 Oct 2025 (A)	2025-10-25	2025-10-25	Blitz	Sedibeng (GSV)	7	7	2.5	Yes	Analysis
2	Eureka Open 2022 (C)	2022-07-30	2022-07-30	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
3	Eureka Chess Open 2019 (C)	2019-07-27	2019-07-27	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis

#	Games	Start				End
1	7	Tournament Eureka Chess Open 2019				Tournament Eureka Open 2022
		date 2019-07-27	rnd 1	type Standard	result 0.5	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Visser, TM (Tracy)				Opponent Botha, OJ (Owen)
2	2	Tournament Chess-in-the-Vaal Academy Blitz Open 25 Oct 2025				Tournament Chess-in-the-Vaal Academy Blitz Open 25 Oct 2025
		date 2025-10-25	rnd 6	type Blitz	result 1	date 2025-10-25	rnd 7	type Blitz	result 1
		Opponent Mckinnon, S (Simeon Shawn)				Opponent Blignaut, A (Aiden)
3	2	Tournament Eureka Open 2022				Tournament Eureka Open 2022
		date 2022-07-30	rnd 4	type Standard	result 1	date 2022-07-30	rnd 5	type Standard	result 1
		Opponent Makhaya, B (Bonginkose)				Opponent Zondo, S (Sizwe)

#	Games	Start				End
1	7	Tournament Eureka Chess Open 2019				Tournament Eureka Open 2022
		date 2019-07-27	rnd 1	type Standard	result 0.5	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Visser, TM (Tracy)				Opponent Botha, OJ (Owen)
2	2	Tournament Eureka Open 2022				Tournament Eureka Open 2022
		date 2022-07-30	rnd 4	type Standard	result 1	date 2022-07-30	rnd 5	type Standard	result 1
		Opponent Makhaya, B (Bonginkose)				Opponent Zondo, S (Sizwe)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Eureka Chess Open 2019				Tournament Eureka Open 2022
		date 2019-07-27	rnd 5	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Moropane, M (Mojalefa)				Opponent Botha, OJ (Owen)
2	2	Tournament Eureka Open 2022				Tournament Eureka Open 2022
		date 2022-07-30	rnd 4	type Standard	result 1	date 2022-07-30	rnd 5	type Standard	result 1
		Opponent Makhaya, B (Bonginkose)				Opponent Zondo, S (Sizwe)
3	2	Tournament Eureka Chess Open 2019				Tournament Eureka Chess Open 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Van Zyl, I (Ilane)				Opponent Nxumalo, L (Lindokuhle)

#	Games	Start				End
1	3	Tournament Eureka Chess Open 2019				Tournament Eureka Open 2022
		date 2019-07-27	rnd 5	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Moropane, M (Mojalefa)				Opponent Botha, OJ (Owen)
2	2	Tournament Eureka Open 2022				Tournament Eureka Open 2022
		date 2022-07-30	rnd 4	type Standard	result 1	date 2022-07-30	rnd 5	type Standard	result 1
		Opponent Makhaya, B (Bonginkose)				Opponent Zondo, S (Sizwe)
3	2	Tournament Eureka Chess Open 2019				Tournament Eureka Chess Open 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Van Zyl, I (Ilane)				Opponent Nxumalo, L (Lindokuhle)

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	Nxumalo ,L (Lindokuhle)	1	1	425	1	1	425	0	0	0	0	0	0
1	Nxumalo ,L (Lindokuhle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Moropane ,M (Mojalefa)	1	1	425	1	1	425	0	0	0	0	0	0
2	Moropane ,M (Mojalefa)	1	1096.7	1521.7	1	1094	1521.7	0	0	0	0	0	0
3	Makhaya ,B (Bonginkose)	1	1	425	1	1	425	0	0	0	0	0	0
3	Makhaya ,B (Bonginkose)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Dube ,B (Brandon)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Dube ,B (Brandon)	1	1109.3	1109.3	1	1108.2	1109.3	0	0	0	0	0	0
5	Van Zyl ,I (Ilane)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Zyl ,I (Ilane)	1	1059.3	1484.3	1	1055.6	1484.3	0	0	0	0	0	0
6	Botha ,OJ (Owen Johan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Botha ,OJ (Owen Johan)	1	1365.7	1790.7	1	1364.6	1790.7	0	0	0	0	0	0
7	Radebe ,T (Thabang)	1	1	425	1	1	425	0	0	0	0	0	0
7	Radebe ,T (Thabang)	1	1276.7	1701.7	1	1290.2	1701.7	0	0	0	0	0	0
8	Visser ,TM (Tracy)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Visser ,TM (Tracy)	1	1135.8	1135.8	1	1130.6	1135.8	0	0	0	0	0	0
9	Zondo ,S (Sizwe)	1	1	425	1	1	425	0	0	0	0	0	0
9	Zondo ,S (Sizwe)	1	1153.2	1578.2	1	1144.6	1578.2	0	0	0	0	0	0
10	Munyai ,P (Phumudzo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Munyai ,P (Phumudzo)	1	1323.3	898.3	1	1314.7	898.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

De Villiers, S (Schalk)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms