Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kotze, B (Barend)

Chess SA id

1170192939

FIDE id

Date of birth

2017-03-09 (U10)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1326.4	1332.1	1200	1200
Raw rating	1326.4	1332.1	1200	1200
Weighted rating	1311	1316.9	1200	1200
Weighted performance	1178.3	1183.7	0	0
Floor	827.8	835.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	138.5	137.4	165.8	165.8
Highest rating	1385.9 2024-09-01	1390.9 2024-09-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1327.8 2024-10-01	1335.3 2024-10-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1327.8 2024-10-01	1335.3 2024-10-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1385.9 2024-09-01	1390.9 2024-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1326.4	1332.1	1200	1200
Analysis
Rating	1326.4	1332.1	1200	1200
Raw rating	1326.4	1332.1	1200	1200
Weighted rating	1311	1316.9	1200
Weighted performance	1178.3	1183.7	0
K-factor	36	36	36	36
Floor	827.8	835.3	700	700
Max/Min rating change allowed	138.5	137.4	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	1326.4	1332.1	1200	1200
New weighted rating	1314.3	1320.2	1200	1200
New weighted performance	1170.3	1175.6	0	0
Temp new rating	1326.4	1332.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1326.4	1332.1	1200	1200
New K-factor	36	36	36	36
New floor	827.8	835.3	700	700

Item	Main	Standard
	0	0
	5	5
	33	33
	0	0
	0	0
	0	0
History	38	38

Games since
	Main 38	Standard 38		Rapid 0		Blitz 0
Gender	Male
Age group	U10
Region	Eden (WEG)
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	2857		810		258
Male	2278		605		188
U10	233		60		32
U10 Male	191		45		23
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	5	3	60	85	1226.5	1311.5
Standard	5	3	60	85	1226.5	1311.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	24.5	64.47	123	1190	1313.1
Standard	38	24.5	64.47	123	1190	1313.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1326.4	1332.1	1200	1200
2025-09-30	1326.4	1332.1	1200	1200
2025-09-01	1326.4	1332.1	1200	1200
2025-08-01	1326.4	1332.1	1200	1200
2025-07-01	1326.4	1332.1	1200	1200
2025-06-01	1326.4	1332.1	1200	1200
2025-05-01	1326.4	1332.1	1200	1200
2025-04-01	1326.4	1332.1	1200	1200
2025-03-01	1326.4	1332.1	1200	1200
2025-02-01	1327.8	1335.3	1200	1200
2025-01-01	1327.8	1335.3	1200	1200
2024-12-01	1327.8	1335.3	1200	1200
2024-11-01	1327.8	1335.3	1200	1200
2024-10-01	1327.8	1335.3	1200	1200
2024-09-01	1260.8	1267.4	1200	1200
2024-08-01	1260.8	1267.4	1200	1200
2024-07-01	1257.2	1264.2	1200	1200
2024-09-01	1257.2	1264.2	1200	1200
2024-05-01	1237.5	1239.4	1200	1200
2024-04-01	1193.3	1189.7	1200	1200
2024-03-01	1213.9	1216	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	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
2	Western Cape Top Schools Championship 2024 (U7 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	5	4	4	Yes	Analysis
3	George Primary Top Schools 2024 (U7)	2024-07-20	2024-07-20	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	Western Cape PS Individuals Championship 2024 (U7 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
5	Eden Chess Trials 2 2024 (U8)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	4	4	Yes	Analysis
6	Eden School Chess Trials 1 2024 (U7 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	2	Yes	Analysis
7	George Schools Trials 2 2024 (U7 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Trials 1 2024 (U7 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	8	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Van Zyl, H (Handre)				Opponent Du Plessis, N (Nick)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Vermeulen, E (Elster)
3	3	Tournament George Schools Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 1	type Standard	result 1
		Opponent Rens, B (Beauwin)				Opponent Kennedy, C (Cuan)

#	Games	Start				End
1	8	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Van Zyl, H (Handre)				Opponent Du Plessis, N (Nick)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Vermeulen, E (Elster)
3	3	Tournament George Schools Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 1	type Standard	result 1
		Opponent Rens, B (Beauwin)				Opponent Kennedy, C (Cuan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Van Zyl, H (Handre)				Opponent Du Plessis, N (Nick)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Vermeulen, E (Elster)
3	3	Tournament George Schools Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 1	type Standard	result 1
		Opponent Rens, B (Beauwin)				Opponent Kennedy, C (Cuan)

#	Games	Start				End
1	8	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Van Zyl, H (Handre)				Opponent Du Plessis, N (Nick)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Vermeulen, E (Elster)
3	3	Tournament George Schools Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 1	type Standard	result 1
		Opponent Rens, B (Beauwin)				Opponent Kennedy, C (Cuan)

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	Rens ,D (Deauwin)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
1	Rens ,D (Deauwin)	4	1277.5	958.7	4	1282.4	958.7	0	0	0	0	0	0
2	Rens ,B (Beauwin)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Rens ,B (Beauwin)	3	1195.1	1053.5	3	1193.5	1053.5	0	0	0	0	0	0
3	Cornforth ,J (Joshua)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Cornforth ,J (Joshua)	3	1186	1044.3	3	1181.8	1044.3	0	0	0	0	0	0
4	Vermeulen ,E (Elster)	2	1	0	2	1	0	0	0	0	0	0	0
4	Vermeulen ,E (Elster)	2	1353.9	1353.9	2	1351.2	1353.9	0	0	0	0	0	0
5	Hessie ,L (Luke)	2	1	0	2	1	0	0	0	0	0	0	0
5	Hessie ,L (Luke)	2	1174.4	1174.4	2	1169.2	1174.4	0	0	0	0	0	0
6	Kennedy ,C (Cuan)	2	2	425	2	2	425	0	0	0	0	0	0
6	Kennedy ,C (Cuan)	2	1156.2	1581.2	2	1146.8	1581.2	0	0	0	0	0	0
7	Jacobs ,S (Stefiano)	2	2	425	2	2	425	0	0	0	0	0	0
7	Jacobs ,S (Stefiano)	2	1004.2	1429.2	2	967	1429.2	0	0	0	0	0	0
8	Van Der Merwe ,F (Finley)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Van Der Merwe ,F (Finley)	2	1324.2	899.2	2	1324.4	899.2	0	0	0	0	0	0
9	Saayman ,J (Johannes)	2	2	425	2	2	425	0	0	0	0	0	0
9	Saayman ,J (Johannes)	2	1119.7	1544.7	2	1106.4	1544.7	0	0	0	0	0	0
10	Janse Van Rensburg ,L (Lisa)	1	1	425	1	1	425	0	0	0	0	0	0
10	Janse Van Rensburg ,L (Lisa)	1	1200	1625	1	1200	1625	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, B (Barend)

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