Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kotze, J (Joshua)

Chess SA id

1160317018

FIDE id

Date of birth

2016-03-15 (U10)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1216.4	1219.7	1200	1200
Raw rating	1216.4	1219.7	1200	1200
Weighted rating	1203.5	1204.2	1200	1200
Weighted performance	0	0	0	0
Floor	716.4	719.7	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	162	161.2	165.8	165.8
Highest rating	1216.4 2025-09-01	1219.7 2025-09-01	1200 2025-04-01	1200 2025-04-01
Highest raw rating	1216.4 2025-09-01	1219.7 2025-09-01	1200 2025-04-01	1200 2025-04-01
Highest weighted rating	1201 2025-09-01	1201.3 2025-09-01	1200 2025-04-01	1200 2025-04-01
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	0	0	0	0
New rating	1216.4	1219.7	1200	1200
Analysis
Rating	1216.4	1219.7	1200	1200
Raw rating	1216.4	1219.7	1200	1200
Weighted rating	1203.5	1204.2	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	716.4	719.7	700	700
Max/Min rating change allowed	162	161.2	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	1216.4	1219.7	1200	1200
New weighted rating	1204.7	1205.6	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1216.4	1219.7	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1216.4	1219.7	1200	1200
New K-factor	36	36	36	36
New floor	716.4	719.7	700	700

Item	Main	Standard
	0	0
	9	9
	0	0
	0	0
	0	0
	0	0
History	9	9

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Male
Age group	U10
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	9	4	44.44	-47.2	1190.3	1143.1
Standard	9	4	44.44	-47.2	1190.3	1143.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	4	44.44	-47.2	1190.3	1143.1
Standard	9	4	44.44	-47.2	1190.3	1143.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1216.4	1219.7	1200	1200
2025-09-30	1216.4	1219.7	1200	1200
2025-09-01	1216.4	1219.7	1200	1200
2025-08-01	1199.7	1199.7	1200	1200
2025-07-01	1199.7	1199.7	1200	1200
2025-06-01	1199.7	1199.7	1200	1200
2025-05-01	1199.6	1199.5	1200	1200
2025-04-01	1197.2	1196.6	1200	1200
2025-03-01	1200	1200	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	2025 Tshwane South School District CLOSED League Championship (U9B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis
2	AHS Open Chess Tournament 2025 (U10)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane South School District CLOSED League Championship (U9B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis
2	AHS Open Chess Tournament 2025 (U10)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament AHS Open Chess Tournament 2025				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Van Der Westhuizen, A (Ava)				Opponent Zeelie, E (Ewan)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 0.5	date 2025-08-15	rnd 4	type Standard	result 0.5
		Opponent Sassi, E (Elian-Nael)				Opponent Sassi, E (Elian-Nael)
3	1	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 2	type Standard	result 0.5	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Viljoen, R (Rouxle)				Opponent Viljoen, R (Rouxle)

#	Games	Start				End
1	3	Tournament AHS Open Chess Tournament 2025				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Van Der Westhuizen, A (Ava)				Opponent Zeelie, E (Ewan)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 0.5	date 2025-08-15	rnd 4	type Standard	result 0.5
		Opponent Sassi, E (Elian-Nael)				Opponent Sassi, E (Elian-Nael)
3	1	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 2	type Standard	result 0.5	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Viljoen, R (Rouxle)				Opponent Viljoen, R (Rouxle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament AHS Open Chess Tournament 2025				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Van Der Westhuizen, A (Ava)				Opponent Zeelie, E (Ewan)

#	Games	Start				End
1	3	Tournament AHS Open Chess Tournament 2025				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Van Der Westhuizen, A (Ava)				Opponent Zeelie, E (Ewan)

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	Westermann ,Z (Zelri)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Westermann ,Z (Zelri)	1	1228.1	803.1	1	1236.4	803.1	0	0	0	0	0	0
2	Ramashaba ,N (Neelo)	1	1	425	1	1	425	0	0	0	0	0	0
2	Ramashaba ,N (Neelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Van Der Westhuizen ,A (Ava)	1	1	425	1	1	425	0	0	0	0	0	0
3	Van Der Westhuizen ,A (Ava)	1	1103	1528	1	1084.6	1528	0	0	0	0	0	0
4	Van Der Walt ,E (Eduan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Der Walt ,E (Eduan)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Viljoen ,R (Rouxle)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Viljoen ,R (Rouxle)	1	1198.3	1198.3	1	1198	1198.3	0	0	0	0	0	0
6	Zeelie ,E (Ewan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Zeelie ,E (Ewan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Roux ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Roux ,M (Matthew)	1	1148	723	1	1149.8	723	0	0	0	0	0	0
8	Brink ,J (Jayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Brink ,J (Jayden)	1	1235.1	810.1	1	1240.4	810.1	0	0	0	0	0	0
9	Sassi ,E (Elian-Nael)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Sassi ,E (Elian-Nael)	1	1200	1200	1	1200	1200	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Kotze, J (Joshua)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms