Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cronje, CJ (Cornelis Johannes)

Chess SA id

1760108478

FIDE id

Date of birth

1976-03-28 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1228.2	1219.5	1300	1300
Raw rating	1228.2	1219.5	1300	1300
Weighted rating	1227.6	1218.9	1299	1299
Weighted performance	0	0	0	0
Floor	728.2	719.5	800	800
K-factor	36	36	36	36
Min/Max rating change allowed	159.3	161.3	143.8	143.8
Highest rating	1228.2 2024-02-01	1219.5 2024-02-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1228.2 2024-02-01	1219.5 2024-02-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1226.3 2025-08-01	1217.6 2025-08-01	1296.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1228.2	1219.5	1300	1300
Analysis
Rating	1228.2	1219.5	1300	1300
Raw rating	1228.2	1219.5	1300	1300
Weighted rating	1227.6	1218.9	1299
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	728.2	719.5	800	800
Max/Min rating change allowed	159.3	161.3	143.8	143.8
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	1228.2	1219.5	1300	1300
New weighted rating	1228	1219.3	1299.7	1299.7
New weighted performance	0	0	0	0
Temp new rating	1228.2	1219.5	1300	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1228.2	1219.5	1300	1300
New K-factor	36	36	36	36
New floor	728.2	719.5	800	800

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
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	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	3.5	35	-127.5	1250.4	1122.9
Standard	10	3.5	35	-127.5	1250.4	1122.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1228.2	1219.5	1300	1300
2025-09-01	1228.2	1219.5	1300	1300
2025-08-01	1228.2	1219.5	1300	1300
2025-07-01	1228.2	1219.5	1300	1300
2025-06-01	1228.2	1219.5	1300	1300
2025-05-01	1228.2	1219.5	1300	1300
2025-04-01	1228.2	1219.5	1300	1300
2025-03-01	1228.2	1219.5	1300	1300
2025-02-01	1228.2	1219.5	1300	1300
2025-01-01	1228.2	1219.5	1300	1300
2024-12-01	1228.2	1219.5	1300	1300
2024-11-01	1228.2	1219.5	1300	1300
2024-10-01	1228.2	1219.5	1300	1300
2024-09-01	1228.2	1219.5	1300	1300
2024-08-01	1228.2	1219.5	1300	1300
2024-07-01	1228.2	1219.5	1300	1300
2024-06-01	1228.2	1219.5	1300	1300
2024-08-01	1228.2	1219.5	1300	1300
2024-04-01	1228.2	1219.5	1300	1300
2024-03-01	1228.2	1219.5	1300	1300
2024-02-01	1228.2	1219.5	1300	1300
2024-01-01	1228.2	1219.5	1300	1300
2023-12-01	1171.8	1162.8	1200	1200
2023-11-01	1171.8	1162.8	1200	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	AG Visser Skaak Ope 2019 (A)	2019-02-23	2019-02-23	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
2	2019 Heidelberg Open (B)	2019-02-02	2019-02-02	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 1	type Standard	result 1	date 2019-02-02	rnd 2	type Standard	result 0.5
		Opponent Vermeulen, H (Henrico)				Opponent Sejeng, O (Onkatlile)
2	1	Tournament AG Visser Skaak Ope 2019				Tournament AG Visser Skaak Ope 2019
		date 2019-02-23	rnd 3	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Huisamen, BB (Botha)				Opponent Huisamen, BB (Botha)
3	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 4	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Visser, TM (Tristan)				Opponent Visser, TM (Tristan)

#	Games	Start				End
1	2	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 1	type Standard	result 1	date 2019-02-02	rnd 2	type Standard	result 0.5
		Opponent Vermeulen, H (Henrico)				Opponent Sejeng, O (Onkatlile)
2	1	Tournament AG Visser Skaak Ope 2019				Tournament AG Visser Skaak Ope 2019
		date 2019-02-23	rnd 3	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Huisamen, BB (Botha)				Opponent Huisamen, BB (Botha)
3	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 4	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Visser, TM (Tristan)				Opponent Visser, TM (Tristan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament AG Visser Skaak Ope 2019				Tournament AG Visser Skaak Ope 2019
		date 2019-02-23	rnd 3	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Huisamen, BB (Botha)				Opponent Huisamen, BB (Botha)
2	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 4	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Visser, TM (Tristan)				Opponent Visser, TM (Tristan)
3	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 1	type Standard	result 1	date 2019-02-02	rnd 1	type Standard	result 1
		Opponent Vermeulen, H (Henrico)				Opponent Vermeulen, H (Henrico)

#	Games	Start				End
1	1	Tournament AG Visser Skaak Ope 2019				Tournament AG Visser Skaak Ope 2019
		date 2019-02-23	rnd 3	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Huisamen, BB (Botha)				Opponent Huisamen, BB (Botha)
2	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 4	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Visser, TM (Tristan)				Opponent Visser, TM (Tristan)
3	1	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 1	type Standard	result 1	date 2019-02-02	rnd 1	type Standard	result 1
		Opponent Vermeulen, H (Henrico)				Opponent Vermeulen, H (Henrico)

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	Huisamen ,D (De Villiers)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Huisamen ,D (De Villiers)	1	1102.7	677.7	1	1099.3	677.7	0	0	0	0	0	0
2	Visser ,TM (Tristan)	1	1	425	1	1	425	0	0	0	0	0	0
2	Visser ,TM (Tristan)	1	1194.2	1619.2	1	1196.7	1619.2	0	0	0	0	0	0
3	Mccarthy ,E (Eugene)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mccarthy ,E (Eugene)	1	1259.7	834.7	1	1273.4	834.7	0	0	0	0	0	0
4	Sejeng ,O (Onkatlile)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Sejeng ,O (Onkatlile)	1	1226.9	1226.9	1	1230	1226.9	0	0	0	0	0	0
5	Theron ,A (Andre)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Theron ,A (Andre)	1	1529.1	1104.1	1	1527.2	1104.1	0	0	0	0	0	0
6	Coetzer ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Coetzer ,D (Daniel)	1	1366.8	941.8	1	1361.3	941.8	0	0	0	0	0	0
7	De Villiers ,L (Lisa Marie)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	De Villiers ,L (Lisa Marie)	1	1130.1	705.1	1	1136	705.1	0	0	0	0	0	0
8	Huisamen ,BB (Botha Brandt)	1	1	425	1	1	425	0	0	0	0	0	0
8	Huisamen ,BB (Botha Brandt)	1	1357.6	1782.6	1	1355.3	1782.6	0	0	0	0	0	0
9	Human ,PMB (Petrus Marthinus)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Human ,PMB (Petrus Marthinus)	1	1167.3	742.3	1	1152.9	742.3	0	0	0	0	0	0
10	Vermeulen ,H (Henrico)	1	1	425	1	1	425	0	0	0	0	0	0
10	Vermeulen ,H (Henrico)	1	1170.1	1595.1	1	1160	1595.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Cronje, CJ (Cornelis Johannes)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms