Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, J (Jean-Pierre)

Chess SA id

1110151144

FIDE id

Date of birth

2011-03-22 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1273	1199.3	1331.1	1200
Raw rating	1273	1199.3	1331.1	1200
Weighted rating	1271.6	1199.1	1325.8	1200
Weighted performance	1063.2	0	0	0
Floor	780.8	700	831.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	149.4	166	137.6	165.8
Highest rating	1280.8 2024-06-01	1200 2018-10-01	1331.1 2024-06-01	1200 2018-10-01
Highest raw rating	1280.8 2024-06-01	1200 2024-02-01	1331.1 2024-06-01	1200 2024-02-01
Highest weighted rating	1269.6 2025-08-01	1200 2018-10-01	1321.6 2025-08-01	1200 2018-10-01
Highest weighted performance	1209.2 2023-08-01	1200 2024-02-01	1275.5 2023-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1273	1199.3	1331.1	1200
Analysis
Rating	1273	1199.3	1331.1	1200
Raw rating	1273	1199.3	1331.1	1200
Weighted rating	1271.6	1199.1	1325.8
Weighted performance	1063.2	0	0
K-factor	36	36	36	36
Floor	780.8	700	831.1	700
Max/Min rating change allowed	149.4	166	137.6	165.8
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	1273	1199.3	1331.1	1200
New weighted rating	1272.3	1199.1	1327.4	1200
New weighted performance	1062.7	0	0	0
Temp new rating	1273	1199.3	1331.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1273	1199.3	1331.1	1200
New K-factor	36	36	36	36
New floor	780.8	700	831.1	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	16	5	11
	11	0	11
	0	0	0
	0	0	0
History	27	5	22

Games since
	Main 16	Standard 5		Rapid 11		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	27	16	59.26	78.7	1258.2	1336.9
Standard	5	2	40	-85	1315.4	1230.4
Rapid	22	14	63.64	115.9	1245.2	1361.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1273	1199.3	1331.1	1200
2025-09-01	1273	1199.3	1331.1	1200
2025-08-01	1273	1199.3	1331.1	1200
2025-07-01	1273	1199.3	1331.1	1200
2025-06-01	1273	1199.3	1331.1	1200
2025-05-01	1273	1199.3	1331.1	1200
2025-04-01	1273	1199.3	1331.1	1200
2025-03-01	1273	1199.3	1331.1	1200
2025-02-01	1273	1199.1	1331.1	1200
2025-01-01	1273	1197.1	1331.1	1200
2024-12-01	1273	1197.1	1331.1	1200
2024-11-01	1273	1197.1	1331.1	1200
2024-10-01	1280.8	1200	1331.1	1200
2024-09-01	1280.8	1200	1331.1	1200
2024-08-01	1280.8	1200	1331.1	1200
2024-07-01	1280.8	1200	1331.1	1200
2024-06-01	1280.8	1200	1331.1	1200
2024-08-01	1256.6	1200	1295.1	1200
2024-04-01	1256.6	1200	1295.1	1200
2024-03-01	1256.6	1200	1295.1	1200
2024-02-01	1220.7	1200	1236.8	1200
2024-01-01	1220.7	1200	1236.8	1200
2023-12-01	1220.7	1200	1236.8	1200
2023-11-01	1220.7	1200	1236.8	1200

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	Grant East Annual Primary School Invitational Chess Tournament 2024 (U13)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
2	Rhenish PS Tournament 2024 (U14)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
3	Mary-Anne Bartels Closed Chess Tournament 2024 (U13 Mixed)	2024-02-24	2024-02-24	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
4	Grant East Primary School Invitational Chess Tournament 2023 (U13 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	0	0	No	Analysis
5	Stellenbosch Primary Chess Tournament 2023 (U14)	2023-08-19	2023-08-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
6	Mary-Anne Bartels Chess Tournament 2023 (U13)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-02-24	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Daniels, C (Cee-Jay)
2	4	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 4	type Rapid	result 1
		Opponent Asekum, F (Fumni)				Opponent Roux, A (Adriaan)
3	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Naidu, P (Preyan)				Opponent Pritchard, A (Aaron)

#	Games	Start				End
1	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Naidu, P (Preyan)				Opponent Pritchard, A (Aaron)

#	Games	Start				End
1	5	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-02-24	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Daniels, C (Cee-Jay)
2	4	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 4	type Rapid	result 1
		Opponent Asekum, F (Fumni)				Opponent Roux, A (Adriaan)
3	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Wongama, A (Achumile)				Opponent Van Zyl, F (Frede)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-02-24	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Daniels, C (Cee-Jay)
2	4	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 4	type Rapid	result 1
		Opponent Asekum, F (Fumni)				Opponent Roux, A (Adriaan)
3	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Naidu, P (Preyan)				Opponent Pritchard, A (Aaron)

#	Games	Start				End
1	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Naidu, P (Preyan)				Opponent Pritchard, A (Aaron)

#	Games	Start				End
1	5	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-02-24	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Daniels, C (Cee-Jay)
2	4	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 4	type Rapid	result 1
		Opponent Asekum, F (Fumni)				Opponent Roux, A (Adriaan)
3	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Wongama, A (Achumile)				Opponent Van Zyl, F (Frede)

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	Naude ,C (Cilan)	2	1	0	0	0	0	2	1	0	0	0	0
1	Naude ,C (Cilan)	2	1205.2	1205.2	0	0	0	2	1213.1	1205.2	0	0	0
2	Van Zyl ,F (Frede)	2	2	425	0	0	0	2	2	425	0	0	0
2	Van Zyl ,F (Frede)	2	1346.3	1771.3	0	0	0	2	1347.8	1771.3	0	0	0
3	Niemann ,J (Jandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Niemann ,J (Jandre)	1	1373.6	948.6	1	1269.4	948.6	0	0	0	0	0	0
4	Arendse ,V (Virgil)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Arendse ,V (Virgil)	1	1350.2	925.2	1	1303	925.2	0	0	0	0	0	0
5	Naidu ,P (Preyan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Naidu ,P (Preyan)	1	1166.1	1591.1	1	1157.6	1591.1	0	0	0	0	0	0
6	Onyire ,P (Prince)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Onyire ,P (Prince)	1	1479.3	1054.3	1	1398.7	1054.3	0	0	0	0	0	0
7	Pritchard ,A (Aaron)	1	1	425	1	1	425	0	0	0	0	0	0
7	Pritchard ,A (Aaron)	1	1207.7	1632.7	1	1202.2	1632.7	0	0	0	0	0	0
8	Malherbe ,J (Jeevan)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Malherbe ,J (Jeevan)	1	1472.2	1047.2	0	0	0	1	1489.8	1047.2	0	0	0
9	Bolton ,A (Alyssa)	1	1	425	0	0	0	1	1	425	0	0	0
9	Bolton ,A (Alyssa)	1	1267.5	1692.5	0	0	0	1	1277.5	1692.5	0	0	0
10	Liu ,F (Furui)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Liu ,F (Furui)	1	1444.2	1019.2	0	0	0	1	1368.4	1019.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

De Villiers, J (Jean-Pierre)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms