Chess South Africa Ratings Database

PLAYER PAGE

Personal

Retief, C (Cornelius Johannes)

Chess SA id

1110141533

FIDE id

Date of birth

2011-11-04 (U16)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1111.8	1148.8	1112.2	1200
Raw rating	1087.9	1148.8	1070.4	1200
Weighted rating	1111.8	1148.8	1112.2	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	194.5	178.4	199.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.1	0	-3.6	0
New rating	1109.7	1148.8	1108.6	1200
Analysis
Rating	1111.8	1148.8	1112.2	1200
Raw rating	1087.9	1148.8	1070.4	1200
Weighted rating	1111.8	1148.8	1112.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	194.5	178.4	199.4	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	1087.9	1148.8	1070.4	1200
New weighted rating	1109.7	1148.8	1108.6	1200
New weighted performance	0	0	0	0
Temp new rating	1109.7	1148.8	1108.6	1200
Temp new rating +/-	-2.1	0	-3.6	0
Final new rating +/-	-2.1	0	-3.6	0
New rating	1109.7	1148.8	1108.6	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	5	0	5
	0	0	0
	0	0	0
	10	4	6
	0	0	0
History	15	4	11

Games since
	Main 5	Standard 0		Rapid 5		Blitz 0
Gender	Male
Age group	U16
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
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	5	1	20	-255	1188.8	933.8
Standard	0	0	0	0	0	0
Rapid	5	1	20	-255	1188.8	933.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	3	20	-255	1171.8	916.8
Standard	4	1	25	-212.5	1133.1	920.6
Rapid	11	2	18.18	-270.5	1185.9	915.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1087.9	1148.8	1070.4	1200
2025-09-01	1087.9	1148.8	1070.4	1200
2025-08-01	1116.2	1148.8	1120	1200
2025-07-01	1116.2	1148.8	1120	1200
2025-06-01	1116.2	1148.8	1120	1200
2025-05-01	1116.2	1148.8	1120	1200
2025-04-01	1116.2	1148.8	1120	1200
2025-03-01	1116.2	1148.8	1120	1200
2025-02-01	1116.2	1148.8	1120	1200
2025-01-01	1116.2	1148.8	1120	1200
2024-12-01	1116.2	1148.8	1120	1200
2024-11-01	1116.2	1148.8	1120	1200
2024-10-01	1116.2	1148.8	1120	1200
2024-09-01	1116.2	1148.8	1120	1200
2024-08-01	1116.2	1148.8	1120	1200
2024-07-01	1116.2	1148.8	1120	1200
2024-06-01	1116.2	1148.8	1120	1200
2024-08-01	1116.2	1148.8	1120	1200
2024-04-01	1116.2	1148.8	1120	1200
2024-03-01	1116.2	1148.8	1120	1200
2024-02-01	1116.2	1148.8	1120	1200
2024-01-01	1116.2	1148.8	1120	1200
2023-12-01	1116.2	1148.8	1120	1200
2023-11-01	1116.2	1148.8	1120	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	Bojanala's Clash Of Schools 2025 (High School B)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools 2025 (High School B)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
2	Bojanala Chess Federation Clash of Schools 2022 (PS Championship)	2022-07-22	2022-07-22	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
3	RMS Swiss For Rating of Players 2022 (U11)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Ncube, B (Boipuso)				Opponent Ncube, B (Boipuso)
2	1	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Clash of Schools 2022
		date 2022-07-22	rnd 4	type Standard	result 1	date 2022-07-22	rnd 4	type Standard	result 1
		Opponent Tovakare, H (Henry)				Opponent Tovakare, H (Henry)
3	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 5	type Rapid	result 1	date 2022-05-28	rnd 5	type Rapid	result 1
		Opponent Keyter, B (Braam)				Opponent Keyter, B (Braam)

#	Games	Start				End
1	1	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Clash of Schools 2022
		date 2022-07-22	rnd 4	type Standard	result 1	date 2022-07-22	rnd 4	type Standard	result 1
		Opponent Tovakare, H (Henry)				Opponent Tovakare, H (Henry)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Ncube, B (Boipuso)				Opponent Ncube, B (Boipuso)
2	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 5	type Rapid	result 1	date 2022-05-28	rnd 5	type Rapid	result 1
		Opponent Keyter, B (Braam)				Opponent Keyter, B (Braam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Ncube, B (Boipuso)				Opponent Ncube, B (Boipuso)
2	1	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Clash of Schools 2022
		date 2022-07-22	rnd 4	type Standard	result 1	date 2022-07-22	rnd 4	type Standard	result 1
		Opponent Tovakare, H (Henry)				Opponent Tovakare, H (Henry)
3	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 5	type Rapid	result 1	date 2022-05-28	rnd 5	type Rapid	result 1
		Opponent Keyter, B (Braam)				Opponent Keyter, B (Braam)

#	Games	Start				End
1	1	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Clash of Schools 2022
		date 2022-07-22	rnd 4	type Standard	result 1	date 2022-07-22	rnd 4	type Standard	result 1
		Opponent Tovakare, H (Henry)				Opponent Tovakare, H (Henry)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Ncube, B (Boipuso)				Opponent Ncube, B (Boipuso)
2	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 5	type Rapid	result 1	date 2022-05-28	rnd 5	type Rapid	result 1
		Opponent Keyter, B (Braam)				Opponent Keyter, B (Braam)

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	Changara ,A (Adiel Tavonga)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Changara ,A (Adiel Tavonga)	1	1101	676	1	1084.8	676	0	0	0	0	0	0
2	Janse Van Rensburg ,AM (Adriana Maria)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Janse Van Rensburg ,AM (Adriana Maria)	1	1031.5	606.5	1	1001.2	606.5	0	0	0	0	0	0
3	Tovakare ,H (Henry)	1	1	425	1	1	425	0	0	0	0	0	0
3	Tovakare ,H (Henry)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Bezuidenhout ,J (Jaco)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Bezuidenhout ,J (Jaco)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Keyter ,B (Braam)	1	1	425	0	0	0	1	1	425	0	0	0
5	Keyter ,B (Braam)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Leyodi ,L (Lesedi)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Leyodi ,L (Lesedi)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Visser ,K (Kaiden)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Visser ,K (Kaiden)	1	1237.2	812.2	0	0	0	1	1200	812.2	0	0	0
8	Venter ,S (Stephan)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Venter ,S (Stephan)	1	1116.2	691.2	0	0	0	1	986.6	691.2	0	0	0
9	Ncube ,B (Boipuso)	1	1	425	0	0	0	1	1	425	0	0	0
9	Ncube ,B (Boipuso)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Makenete ,T (Tokoloho)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Makenete ,T (Tokoloho)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Retief, C (Cornelius Johannes)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms