Chess South Africa Ratings Database

PLAYER PAGE

Personal

Blaauws, J (Joshua)

Chess SA id

1120140961

FIDE id

Date of birth

2012-11-28 (U14)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1243.5	1194	1264.8	1200
Raw rating	1243.5	1194	1264.8	1200
Weighted rating	1229.3	1194	1253.8	1200
Weighted performance	1052.9	0	0	0
Floor	743.5	700	764.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.8	167.2	151.2	165.8
Highest rating	1243.5 2025-09-01	1200 2018-10-01	1276.6 2024-05-01	1200 2018-10-01
Highest raw rating	1243.5 2025-09-01	1200 2020-01-01	1264.8 2025-09-01	1200 2024-02-01
Highest weighted rating	1227.1 2025-09-01	1200 2018-10-01	1251.3 2025-09-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1276.6 2024-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1243.5	1194	1264.8	1200
Analysis
Rating	1243.5	1194	1264.8	1200
Raw rating	1243.5	1194	1264.8	1200
Weighted rating	1229.3	1194	1253.8
Weighted performance	1052.9	0	0
K-factor	36	36	36	36
Floor	743.5	700	764.8	700
Max/Min rating change allowed	155.8	167.2	151.2	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	1243.5	1194	1264.8	1200
New weighted rating	1231.2	1194	1256.1	1200
New weighted performance	1052.5	0	0	0
Temp new rating	1243.5	1194	1264.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1243.5	1194	1264.8	1200
New K-factor	36	36	36	36
New floor	743.5	700	764.8	700

Item	Main	Standard	Rapid
	0	0	0
	4	0	4
	5	0	5
	6	0	6
	13	9	4
	0	0	0
History	28	9	19

Games since
	Main 15	Standard 0		Rapid 15		Blitz 0
Gender	Male
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	4	2	50	0	1342.9	1342.9
Standard	0	0	0	0	0	0
Rapid	4	2	50	0	1342.9	1342.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	28	13	46.43	-30.4	1219.9	1189.6
Standard	9	3	33.33	-141.7	1169.5	1027.8
Rapid	19	10	52.63	22.4	1243.8	1266.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1243.5	1194	1264.8	1200
2025-09-01	1243.5	1194	1264.8	1200
2025-08-01	1231.8	1194	1261.2	1200
2025-07-01	1231.8	1194	1261.2	1200
2025-06-01	1231.8	1194	1261.2	1200
2025-05-01	1231.8	1194	1261.2	1200
2025-04-01	1231.8	1194	1261.2	1200
2025-03-01	1231.8	1194	1261.2	1200
2025-02-01	1231.8	1194	1261.2	1200
2025-01-01	1231.8	1194	1261.2	1200
2024-12-01	1231.8	1194	1261.2	1200
2024-11-01	1231.8	1194	1261.2	1200
2024-10-01	1231.8	1194	1261.2	1200
2024-09-01	1231.8	1194	1261.2	1200
2024-08-01	1231.8	1194	1261.2	1200
2024-07-01	1231.8	1194	1261.2	1200
2024-06-01	1231.8	1194	1261.2	1200
2024-08-01	1185.2	1194	1176	1200
2024-04-01	1185.2	1194	1176	1200
2024-03-01	1185.2	1194	1176	1200
2024-02-01	1185.2	1194	1176	1200
2024-01-01	1185.2	1194	1176	1200
2023-12-01	1185.2	1194	1176	1200
2023-11-01	1185.2	1194	1176	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	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis
2	Robertson Strategema Chess May 2024 (U11)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
3	Worcester Knock-Out 2023 (U13 Boys)	2023-10-14	2023-10-14	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
4	Western Cape Woman`s Championship 2022 (Open)	2022-09-02	2022-09-04	Standard	West Coast (WCU)	5	5	1	Yes	Analysis
5	Cape Winelands Schools Top Schools 2022 (U13 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
6	Strategema Chess Festival 2022 (U11 Boys)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	5	4	0	Yes	Analysis

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Robertson Strategema Chess May 2024
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Davidse, Z (Zac)				Opponent Evertson, A (Anthea)
2	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Lukas, J (Janeva)				Opponent Kwamane, Z (Zingce)
3	2	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Kriel, D (Daniel)				Opponent Rankin, A (Alexander Rohan)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 3	type Standard	result 1	date 2022-08-27	rnd 4	type Standard	result 1
		Opponent Coetzee, A (Alexia)				Opponent Muller, R (Randall)
2	1	Tournament Western Cape Woman`s Championship 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-09-03	rnd 4	type Standard	result 1	date 2022-09-03	rnd 4	type Standard	result 1
		Opponent Rooi, J (Josh-Lee)				Opponent Rooi, J (Josh-Lee)

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Robertson Strategema Chess May 2024
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Davidse, Z (Zac)				Opponent Evertson, A (Anthea)
2	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Lukas, J (Janeva)				Opponent Kwamane, Z (Zingce)
3	2	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Kriel, D (Daniel)				Opponent Rankin, A (Alexander Rohan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Robertson Strategema Chess May 2024
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Davidse, Z (Zac)				Opponent Evertson, A (Anthea)
2	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Lukas, J (Janeva)				Opponent Kwamane, Z (Zingce)
3	2	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Kriel, D (Daniel)				Opponent Rankin, A (Alexander Rohan)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 3	type Standard	result 1	date 2022-08-27	rnd 4	type Standard	result 1
		Opponent Coetzee, A (Alexia)				Opponent Muller, R (Randall)
2	1	Tournament Western Cape Woman`s Championship 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-09-03	rnd 4	type Standard	result 1	date 2022-09-03	rnd 4	type Standard	result 1
		Opponent Rooi, J (Josh-Lee)				Opponent Rooi, J (Josh-Lee)

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Robertson Strategema Chess May 2024
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Davidse, Z (Zac)				Opponent Evertson, A (Anthea)
2	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Lukas, J (Janeva)				Opponent Kwamane, Z (Zingce)
3	2	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Kriel, D (Daniel)				Opponent Rankin, A (Alexander Rohan)

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	Rooi ,J (Josh-Lee)	1	1	425	1	1	425	0	0	0	0	0	0
1	Rooi ,J (Josh-Lee)	1	1101.4	1526.4	1	1082	1526.4	0	0	0	0	0	0
2	Muller ,R (Randall)	1	1	425	1	1	425	0	0	0	0	0	0
2	Muller ,R (Randall)	1	1142.9	1567.9	1	1123.2	1567.9	0	0	0	0	0	0
3	Siebritz ,Y (Yul)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Siebritz ,Y (Yul)	1	1192.8	767.8	1	1205.2	767.8	0	0	0	0	0	0
4	Visser ,D (Denwill)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Visser ,D (Denwill)	1	1219.2	794.2	1	1261.7	794.2	0	0	0	0	0	0
5	Visagie ,R (Rawdune)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Visagie ,R (Rawdune)	1	1210.6	785.6	1	1179.6	785.6	0	0	0	0	0	0
6	Ellman ,A (Anne-Belle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ellman ,A (Anne-Belle)	1	1316.4	891.4	1	1346.4	891.4	0	0	0	0	0	0
7	Conradie ,Q (Quewin)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Conradie ,Q (Quewin)	1	1082.6	657.6	1	1127.6	657.6	0	0	0	0	0	0
8	Coetzee ,A (Alexia)	1	1	425	1	1	425	0	0	0	0	0	0
8	Coetzee ,A (Alexia)	1	1146.9	1571.9	1	1148	1571.9	0	0	0	0	0	0
9	Moller ,A (Armand)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Moller ,A (Armand)	1	1200.2	775.2	0	0	0	1	1196.8	775.2	0	0	0
10	Evertson ,A (Anthea)	1	1	425	0	0	0	1	1	425	0	0	0
10	Evertson ,A (Anthea)	1	1169	1594	0	0	0	1	1200.4	1594	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Blaauws, J (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms