Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cruywagen, JJ (Johannes Jacobus)

Chess SA id

134005808

FIDE id

Date of birth

1934-01-08 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1299.9	1292.2	1407	1396.2
Raw rating	1299.9	1292.2	1407	1396.2
Weighted rating	1299.9	1292.2	1406.9	1396.2
Weighted performance	0	0	0	0
Floor	896.2	896.2	907	896.2
K-factor	36	36	32	36
Min/Max rating change allowed	143.8	145.4	123.5	125.4
Highest rating	1396.2 2018-01-01	1396.2 2018-01-01	1407 2024-02-01	1396.2 2018-10-01
Highest raw rating	1396.2 2018-01-01	1396.2 2018-01-01	1407 2024-02-01	1396.2 2024-02-01
Highest weighted rating	1396.2 2018-01-01	1396.2 2018-01-01	1406.6 2025-08-01	1396.2 2018-10-01
Highest weighted performance	1376.3 2018-09-01	1280.7 2018-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1299.9	1292.2	1407	1396.2
Analysis
Rating	1299.9	1292.2	1407	1396.2
Raw rating	1299.9	1292.2	1407	1396.2
Weighted rating	1299.9	1292.2	1406.9
Weighted performance	0	0	0
K-factor	36	36	32	36
Floor	896.2	896.2	907	896.2
Max/Min rating change allowed	143.8	145.4	123.5	125.4
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	1299.9	1292.2	1407	1396.2
New weighted rating	1299.9	1292.2	1407	1396.2
New weighted performance	0	0	0	0
Temp new rating	1299.9	1292.2	1407	1396.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1299.9	1292.2	1407	1396.2
New K-factor	36	36	32	36
New floor	896.2	896.2	907	896.2

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	293	285	8

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
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	17	8.5	50	0	1217.3	1217.3
Standard	17	8.5	50	0	1217.3	1217.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1299.9	1292.2	1407	1396.2
2025-09-01	1299.9	1292.2	1407	1396.2
2025-08-01	1299.9	1292.2	1407	1396.2
2025-07-01	1299.9	1292.2	1407	1396.2
2025-06-01	1299.9	1292.2	1407	1396.2
2025-05-01	1299.9	1292.2	1407	1396.2
2025-04-01	1299.9	1292.2	1407	1396.2
2025-03-01	1299.9	1292.2	1407	1396.2
2025-02-01	1299.9	1292.2	1407	1396.2
2025-01-01	1299.9	1292.2	1407	1396.2
2024-12-01	1299.9	1292.2	1407	1396.2
2024-11-01	1299.9	1292.2	1407	1396.2
2024-10-01	1299.9	1292.2	1407	1396.2
2024-09-01	1299.9	1292.2	1407	1396.2
2024-08-01	1299.9	1292.2	1407	1396.2
2024-07-01	1299.9	1292.2	1407	1396.2
2024-06-01	1299.9	1292.2	1407	1396.2
2024-08-01	1299.9	1292.2	1407	1396.2
2024-04-01	1299.9	1292.2	1407	1396.2
2024-03-01	1299.9	1292.2	1407	1396.2
2024-02-01	1299.9	1292.2	1407	1396.2
2024-01-01	1299.9	1292.2	1407	1396.2
2023-12-01	1299.9	1292.2	1396.2	1396.2
2023-11-01	1299.9	1292.2	1396.2	1396.2

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	2019 Western Province League (B)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	1	0	Yes	Analysis
2	2019 Western Province League (C)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	3	0.5	Yes	Analysis
3	2019 Western Province League (D)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	2	1	Yes	Analysis
4	2018 Western Province League (C)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	4	1	Yes	Analysis
5	2018 Western Province League (D)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	6	5	Yes	Analysis
6	2018 Western Province League (E)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	7	1	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-08-11	rnd 4	type Standard	result 1
		Opponent Maart, G (Gavin)				Opponent Boland, J (Jon)
2	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 0.5	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Solomons, L (Lance)				Opponent Osman, M (Mustaqeem)
3	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-01	rnd 8	type Standard	result 1	date 2018-09-08	rnd 9	type Standard	result 1
		Opponent Williams, M (Mark)				Opponent Sauls, R (Ruben)

#	Games	Start				End
1	4	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-08-11	rnd 4	type Standard	result 1
		Opponent Maart, G (Gavin)				Opponent Boland, J (Jon)
2	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 0.5	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Solomons, L (Lance)				Opponent Osman, M (Mustaqeem)
3	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-01	rnd 8	type Standard	result 1	date 2018-09-08	rnd 9	type Standard	result 1
		Opponent Williams, M (Mark)				Opponent Sauls, R (Ruben)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-08-11	rnd 4	type Standard	result 1
		Opponent Maart, G (Gavin)				Opponent Boland, J (Jon)
2	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-01	rnd 8	type Standard	result 1	date 2018-09-08	rnd 9	type Standard	result 1
		Opponent Williams, M (Mark)				Opponent Sauls, R (Ruben)
3	1	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-17	rnd 7	type Standard	result 1	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Osman, M (Mustaqeem)

#	Games	Start				End
1	4	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-08-11	rnd 4	type Standard	result 1
		Opponent Maart, G (Gavin)				Opponent Boland, J (Jon)
2	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-01	rnd 8	type Standard	result 1	date 2018-09-08	rnd 9	type Standard	result 1
		Opponent Williams, M (Mark)				Opponent Sauls, R (Ruben)
3	1	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-17	rnd 7	type Standard	result 1	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Osman, M (Mustaqeem)

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	Kalala ,A (Alladean)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Kalala ,A (Alladean)	1	1456.3	1031.3	1	1460.3	1031.3	0	0	0	0	0	0
2	Boland ,J (Jon)	1	1	425	1	1	425	0	0	0	0	0	0
2	Boland ,J (Jon)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Jonas ,E (Edwil)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Jonas ,E (Edwil)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Magwembere ,A (Adrian)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Magwembere ,A (Adrian)	1	1508.3	1083.3	1	1447.9	1083.3	0	0	0	0	0	0
5	November ,EJ (Edwin Jacobus)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	November ,EJ (Edwin Jacobus)	1	1754.2	1329.2	1	1754	1329.2	0	0	0	0	0	0
6	Kamalie ,W (Warieth)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kamalie ,W (Warieth)	1	1342.9	917.9	1	1342.4	917.9	0	0	0	0	0	0
7	Solomons ,L (Lance)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Solomons ,L (Lance)	1	1076.7	1076.7	1	1076.7	1076.7	0	0	0	0	0	0
8	Williams ,M (Mark)	1	1	425	1	1	425	0	0	0	0	0	0
8	Williams ,M (Mark)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Sauls ,R (Ruben)	1	1	425	1	1	425	0	0	0	0	0	0
9	Sauls ,R (Ruben)	1	580.8	1005.8	1	580.8	1005.8	0	0	0	0	0	0
10	Hugo ,C (Christiaan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Hugo ,C (Christiaan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Cruywagen, JJ (Johannes Jacobus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms