Chess South Africa Ratings Database

PLAYER PAGE

Personal

Witbooi, C (Cobie)

Chess SA id

1030099695

FIDE id

Date of birth

2003-08-23 (Adult)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-07-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1115.6	1094	1160.4	1200
Raw rating	1115.6	1094	1160.4	1200
Weighted rating	1115.6	1094	1160.4	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	187	192.8	175.4	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1115.6	1094	1160.4	1200
Analysis
Rating	1115.6	1094	1160.4	1200
Raw rating	1115.6	1094	1160.4	1200
Weighted rating	1115.6	1094	1160.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	187	192.8	175.4	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	1115.6	1094	1160.4	1200
New weighted rating	1115.6	1094	1160.4	1200
New weighted performance	0	0	0	0
Temp new rating	1115.6	1094	1160.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1115.6	1094	1160.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	7	3	4
	0	0	0
History	10	6	4

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	West Coast (WCU)
Province	Western Cape (WC)
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	10	2	20	-255	1178.9	923.9
Standard	6	1	16.67	-283.3	1116.1	832.8
Rapid	4	1	25	-212.5	1273	1060.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1115.6	1094	1160.4	1200
2025-09-01	1115.6	1094	1160.4	1200
2025-08-01	1115.6	1094	1160.4	1200
2025-07-01	1115.6	1094	1160.4	1200
2025-06-01	1115.6	1094	1160.4	1200
2025-05-01	1115.6	1094	1160.4	1200
2025-04-01	1115.6	1094	1160.4	1200
2025-03-01	1115.6	1094	1160.4	1200
2025-02-01	1115.6	1094	1160.4	1200
2025-01-01	1115.6	1094	1160.4	1200
2024-12-01	1115.6	1094	1160.4	1200
2024-11-01	1115.6	1094	1160.4	1200
2024-10-01	1115.6	1094	1160.4	1200
2024-09-01	1115.6	1094	1160.4	1200
2024-08-01	1115.6	1094	1160.4	1200
2024-07-01	1115.6	1094	1160.4	1200
2024-06-01	1115.6	1094	1160.4	1200
2024-08-01	1115.6	1094	1160.4	1200
2024-04-01	1115.6	1094	1160.4	1200
2024-03-01	1115.6	1094	1160.4	1200
2024-02-01	1115.6	1094	1160.4	1200
2024-01-01	1115.6	1094	1160.4	1200
2023-12-01	1115.6	1094	1160.4	1200
2023-11-01	1115.6	1094	1160.4	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	Pedro Booyse Top Schools 2022 (U18 Open)	2022-07-23	2022-07-23	Standard	West Coast (WCU)	6	3	0	Yes	Analysis
2	Bo-Weskus Top Skole 2022 (Hoerskool)	2022-06-11	2022-06-11	Rapid	West Coast (WCU)	5	4	1	Yes	Analysis
3	West Coast Schools Prestige 2022 (U18 Boys)	2022-02-19	2022-02-19	Standard	West Coast (WCU)	6	0	0	No	Analysis
4	West Coast Schools Prestige Individual Championship 2018 (U15 Boys)	2018-03-10	2018-03-24	Standard	West Coast (WCU)	6	3	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 1	type Rapid	result 1
		Opponent Gal, C (Curtis)				Opponent Gal, C (Curtis)
2	1	Tournament West Coast Schools Prestige Individual Championship 2018				Tournament West Coast Schools Prestige Individual Championship 2018
		date 2018-03-10	rnd 3	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Van Bosch, J (Janlou)				Opponent Van Bosch, J (Janlou)

#	Games	Start				End
1	1	Tournament West Coast Schools Prestige Individual Championship 2018				Tournament West Coast Schools Prestige Individual Championship 2018
		date 2018-03-10	rnd 3	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Van Bosch, J (Janlou)				Opponent Van Bosch, J (Janlou)

#	Games	Start				End
1	1	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 1	type Rapid	result 1
		Opponent Gal, C (Curtis)				Opponent Gal, C (Curtis)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 1	type Rapid	result 1
		Opponent Gal, C (Curtis)				Opponent Gal, C (Curtis)
2	1	Tournament West Coast Schools Prestige Individual Championship 2018				Tournament West Coast Schools Prestige Individual Championship 2018
		date 2018-03-10	rnd 3	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Van Bosch, J (Janlou)				Opponent Van Bosch, J (Janlou)

#	Games	Start				End
1	1	Tournament West Coast Schools Prestige Individual Championship 2018				Tournament West Coast Schools Prestige Individual Championship 2018
		date 2018-03-10	rnd 3	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Van Bosch, J (Janlou)				Opponent Van Bosch, J (Janlou)

#	Games	Start				End
1	1	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 1	type Rapid	result 1
		Opponent Gal, C (Curtis)				Opponent Gal, C (Curtis)

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	Cloete ,H (Howard)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Cloete ,H (Howard)	1	1222.8	797.8	1	916	797.8	0	0	0	0	0	0
2	Lane ,T (Teshwil)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Lane ,T (Teshwil)	1	525.6	100.6	1	525.6	100.6	0	0	0	0	0	0
3	Holtzhausen ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Holtzhausen ,L (Logan)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Van Bosch ,J (Janlou)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Bosch ,J (Janlou)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Minnaar ,E (Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Minnaar ,E (Ethan)	1	1309.6	884.6	1	1257.2	884.6	0	0	0	0	0	0
6	Victor ,A (Aj)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Victor ,A (Aj)	1	1238.6	813.6	1	1216.4	813.6	0	0	0	0	0	0
7	Gal ,C (Curtis)	1	1	425	0	0	0	1	1	425	0	0	0
7	Gal ,C (Curtis)	1	1187.5	1612.5	0	0	0	1	1204.4	1612.5	0	0	0
8	Maletta ,L (Legene)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Maletta ,L (Legene)	1	1518.4	1093.4	0	0	0	1	1312.9	1093.4	0	0	0
9	Van Der Heever ,L (Lee-Ann)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Van Der Heever ,L (Lee-Ann)	1	1244.5	819.5	0	0	0	1	1181.2	819.5	0	0	0
10	Don ,W (Wian)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Don ,W (Wian)	1	1141.7	716.7	0	0	0	1	1107.2	716.7	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Witbooi, C (Cobie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms