Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Beer, J (Jack)

Chess SA id

1090105968

FIDE id

Date of birth

2009-03-06 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-08-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1124.3	1089.6	1200	1200
Raw rating	1124.3	1089.6	1200	1200
Weighted rating	1124.3	1089.6	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	184.7	194.1	165.8	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 2024-02-01	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 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1124.3	1089.6	1200	1200
Analysis
Rating	1124.3	1089.6	1200	1200
Raw rating	1124.3	1089.6	1200	1200
Weighted rating	1124.3	1089.6	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	184.7	194.1	165.8	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	1124.3	1089.6	1200	1200
New weighted rating	1124.3	1089.6	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1124.3	1089.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1124.3	1089.6	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	5	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	5	1	20	-255	1049.5	794.5
Standard	5	1	20	-255	1049.5	794.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1124.3	1089.6	1200	1200
2025-09-30	1124.3	1089.6	1200	1200
2025-09-01	1124.3	1089.6	1200	1200
2025-08-01	1124.3	1089.6	1200	1200
2025-07-01	1124.3	1089.6	1200	1200
2025-06-01	1124.3	1089.6	1200	1200
2025-05-01	1124.3	1089.6	1200	1200
2025-04-01	1124.3	1089.6	1200	1200
2025-03-01	1124.3	1089.6	1200	1200
2025-02-01	1124.3	1089.6	1200	1200
2025-01-01	1124.3	1089.6	1200	1200
2024-12-01	1124.3	1089.6	1200	1200
2024-11-01	1124.3	1089.6	1200	1200
2024-10-01	1124.3	1089.6	1200	1200
2024-09-01	1124.3	1089.6	1200	1200
2024-08-01	1124.3	1089.6	1200	1200
2024-07-01	1124.3	1089.6	1200	1200
2024-09-01	1124.3	1089.6	1200	1200
2024-05-01	1124.3	1089.6	1200	1200
2024-04-01	1124.3	1089.6	1200	1200
2024-03-01	1124.3	1089.6	1200	1200
2024-02-01	1124.3	1089.6	1200	1200
2024-01-01	1124.3	1089.6	1200	1200
2023-12-01	1124.3	1089.6	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	Western Cape Top Schools 2018 (U7+U9 Mix)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	5	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament Western Cape Top Schools 2018				Tournament Western Cape Top Schools 2018
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Brooks, L (Lehane)				Opponent Brooks, L (Lehane)

#	Games	Start				End
1	1	Tournament Western Cape Top Schools 2018				Tournament Western Cape Top Schools 2018
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Brooks, L (Lehane)				Opponent Brooks, L (Lehane)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Western Cape Top Schools 2018				Tournament Western Cape Top Schools 2018
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Brooks, L (Lehane)				Opponent Brooks, L (Lehane)

#	Games	Start				End
1	1	Tournament Western Cape Top Schools 2018				Tournament Western Cape Top Schools 2018
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Brooks, L (Lehane)				Opponent Brooks, L (Lehane)

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	Hanekom ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Hanekom ,L (Logan)	1	1136.8	711.8	1	741.6	711.8	0	0	0	0	0	0
2	Fredericks ,J (Jean Pierre)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Fredericks ,J (Jean Pierre)	1	625.5	200.5	1	655.6	200.5	0	0	0	0	0	0
3	Brooks ,L (Lehane)	1	1	425	1	1	425	0	0	0	0	0	0
3	Brooks ,L (Lehane)	1	1102.7	1527.7	1	1091.3	1527.7	0	0	0	0	0	0
4	Matinywa ,T (Thobani)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Matinywa ,T (Thobani)	1	1173.4	748.4	1	1168.4	748.4	0	0	0	0	0	0
5	Cardinal ,J (Jacelynn)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Cardinal ,J (Jacelynn)	1	1208.9	783.9	1	1211	783.9	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

De Beer, J (Jack)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms