Chess South Africa Ratings Database

PLAYER PAGE

Personal

van Schalkwyk, J (Josua)

Chess SA id

1160314933

FIDE id

Date of birth

2016-07-14 (U10)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1167.4

Item	Main	Standard	Rapid	Blitz
Rating	1204.1	1205.5	1200	1200
Raw rating	1189.4	1187.4	1200	1200
Weighted rating	1204.1	1205.5	1200	1200
Weighted performance	0	0	0	0
Floor	713.4	717	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.3	168.8	165.8	165.8
Highest rating	1213.4 2025-03-01	1217 2025-03-01	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1213.4 2025-03-01	1217 2025-03-01	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1205.8 2025-08-01	1207.3 2025-08-01	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.1	-1.3	0	0
New rating	1203	1204.2	1200	1200
Analysis
Rating	1204.1	1205.5	1200	1200
Raw rating	1189.4	1187.4	1200	1200
Weighted rating	1204.1	1205.5	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	713.4	717	700	700
Max/Min rating change allowed	168.3	168.8	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	1189.4	1187.4	1200	1200
New weighted rating	1203	1204.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1203	1204.2	1200	1200
Temp new rating +/-	-1.1	-1.3	0	0
Final new rating +/-	-1.1	-1.3	0	0
New rating	1203	1204.2	1200	1200
New K-factor	36	36	36	36
New floor	713.4	717	700	700

Item	Main	Standard
	0	0
	13	13
	0	0
	0	0
	0	0
	0	0
History	13	13

Games since
	Main 13	Standard 13		Rapid 0		Blitz 0
Gender	Male
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	13	6	46.15	-32.7	1203.6	1171
Standard	13	6	46.15	-32.7	1203.6	1171
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	13	6	46.15	-32.7	1203.6	1171
Standard	13	6	46.15	-32.7	1203.6	1171
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1189.4	1187.4	1200	1200
2025-09-30	1199.9	1201.4	1200	1200
2025-09-01	1199.9	1201.4	1200	1200
2025-08-01	1213.4	1217	1200	1200
2025-07-01	1213.4	1217	1200	1200
2025-06-01	1213.4	1217	1200	1200
2025-05-01	1213.4	1217	1200	1200
2025-04-01	1213.4	1217	1200	1200
2025-03-01	1213.4	1217	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	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	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U9)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	3	1	Yes	Analysis
3	De Hoop Primary Schools Teams Play-offs 2025 (U9)	2025-02-08	2025-02-08	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U9)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	3	1	Yes	Analysis
3	De Hoop Primary Schools Teams Play-offs 2025 (U9)	2025-02-08	2025-02-08	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament De Hoop Primary Schools Teams Play-offs 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-02-08	rnd 2	type Standard	result 0.5	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Arendse, M (Meekah)				Opponent Ntantiso, M (Minqweno)
2	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2025				Tournament Grant East Annual Primary School Invitational Chess Tournament 2025
		date 2025-10-18	rnd 2	type Standard	result 1	date 2025-10-18	rnd 3	type Standard	result 1
		Opponent Sauls, J (Jake)				Opponent Janse Van Rensberg, D (Divan)

#	Games	Start				End
1	5	Tournament De Hoop Primary Schools Teams Play-offs 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-02-08	rnd 2	type Standard	result 0.5	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Arendse, M (Meekah)				Opponent Ntantiso, M (Minqweno)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament De Hoop Primary Schools Teams Play-offs 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Louw, E (Emile)				Opponent Ntantiso, M (Minqweno)

#	Games	Start				End
1	3	Tournament De Hoop Primary Schools Teams Play-offs 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Louw, E (Emile)				Opponent Ntantiso, M (Minqweno)

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	Davids ,N (Noah)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Davids ,N (Noah)	2	1219.2	794.2	2	1244.4	794.2	0	0	0	0	0	0
2	Janse Van Rensberg ,D (Divan)	1	1	425	1	1	425	0	0	0	0	0	0
2	Janse Van Rensberg ,D (Divan)	1	1195	1620	1	1213.1	1620	0	0	0	0	0	0
3	Louw ,E (Emile)	1	1	425	1	1	425	0	0	0	0	0	0
3	Louw ,E (Emile)	1	1199	1624	1	1199	1624	0	0	0	0	0	0
4	Lotter ,K (Kean)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Lotter ,K (Kean)	1	1224.2	799.2	1	1200	799.2	0	0	0	0	0	0
5	Bredell ,A (Anton)	1	1	425	1	1	425	0	0	0	0	0	0
5	Bredell ,A (Anton)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Sauls ,J (Jake)	1	1	425	1	1	425	0	0	0	0	0	0
6	Sauls ,J (Jake)	1	1197.1	1622.1	1	1197.1	1622.1	0	0	0	0	0	0
7	Etsebeth ,H (Heiko)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Etsebeth ,H (Heiko)	1	1218.9	793.9	1	1223.6	793.9	0	0	0	0	0	0
8	Ferreira ,C (Christian)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Ferreira ,C (Christian)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
9	Arendse ,M (Meekah)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Arendse ,M (Meekah)	1	1135.4	1135.4	1	1149.2	1135.4	0	0	0	0	0	0
10	Basson ,K (Keagan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Basson ,K (Keagan)	1	1239.2	814.2	1	1200	814.2	0	0	0	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

van Schalkwyk, J (Josua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms