Chess South Africa Ratings Database

PLAYER PAGE

Personal

Siebert, J (Joshua)

Chess SA id

1140158836

FIDE id

Date of birth

2014-09-16 (U12)

Gender

Male

Region

Gert Sibande (MGS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1165.4	1200	1138.6	1200
Raw rating	1165.4	1200	1138.6	1200
Weighted rating	1162.6	1200	1134.1	1200
Weighted performance	806.7	0	845	0
Floor	711.2	700	719.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.2	165.8	181	165.8
Highest rating	1229 2023-07-01	1200 2018-10-01	1296.9 2023-07-01	1200 2018-10-01
Highest raw rating	1211.2 2023-08-01	1200 2024-03-01	1219.4 2023-08-01	1200 2024-03-01
Highest weighted rating	1211.2 2023-08-01	1200 2018-10-01	1219.4 2023-08-01	1200 2018-10-01
Highest weighted performance	1229 2023-07-01	1200 2024-03-01	1296.9 2023-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1165.4	1200	1138.6	1200
Analysis
Rating	1165.4	1200	1138.6	1200
Raw rating	1165.4	1200	1138.6	1200
Weighted rating	1162.6	1200	1134.1
Weighted performance	806.7	0	845
K-factor	36	36	36	36
Floor	711.2	700	719.4	700
Max/Min rating change allowed	174.2	165.8	181	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	1165.4	1200	1138.6	1200
New weighted rating	1162.5	1200	1134	1200
New weighted performance	806.3	0	844.6	0
Temp new rating	1165.4	1200	1138.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1165.4	1200	1138.6	1200
New K-factor	36	36	36	36
New floor	711.2	700	719.4	700

Item	Main	Rapid
	0	0
	0	0
	10	10
	15	15
	0	0
	0	0
History	25	25

Games since
	Main 10	Standard 0		Rapid 10		Blitz 0
Gender	Male
Age group	U12
Region	Gert Sibande (MGS)
Province	Mpumalanga (MP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	25	10	40	-85	1184.9	1099.9
Standard	0	0	0	0	0	0
Rapid	25	10	40	-85	1184.9	1099.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1165.4	1200	1138.6	1200
2025-09-01	1165.4	1200	1138.6	1200
2025-08-01	1165.4	1200	1138.6	1200
2025-07-01	1165.4	1200	1138.6	1200
2025-06-01	1165.4	1200	1138.6	1200
2025-05-01	1165.4	1200	1138.6	1200
2025-04-01	1165.4	1200	1138.6	1200
2025-03-01	1165.4	1200	1138.6	1200
2025-02-01	1164.3	1200	1137	1200
2025-01-01	1139.1	1200	1097.7	1200
2024-12-01	1139.1	1200	1097.7	1200
2024-11-01	1139.1	1200	1097.7	1200
2024-10-01	1139.1	1200	1097.7	1200
2024-09-01	1139.1	1200	1097.7	1200
2024-08-01	1181.4	1200	1162.9	1200
2024-07-01	1181.4	1200	1162.9	1200
2024-06-01	1181.4	1200	1162.9	1200
2024-08-01	1181.4	1200	1162.9	1200
2024-04-01	1181.4	1200	1162.9	1200
2024-03-01	1181.4	1200	1162.9	1200
2024-02-01	1181.4	1200	1162.9	1200
2024-01-01	1181.4	1200	1162.9	1200
2023-12-01	1181.4	1200	1162.9	1200
2023-11-01	1181.4	1200	1162.9	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	Top Schools Gert Sibande 2024 (B-Teams)	2024-08-16	2024-08-16	Rapid	Gert Sibande (MGS)	5	5	2	Yes	Analysis
2	Govan Mbeki 2024 (B-Teams)	2024-08-02	2024-08-02	Rapid	Gert Sibande (MGS)	5	5	1	Yes	Analysis
3	Highveld Ridge West 2023 (U9)	2023-08-09	2023-08-09	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis
4	Govin Mbeki Teams Chess Tournament 2023 (U9)	2023-08-18	2023-08-18	Rapid	Gert Sibande (MGS)	5	5	1	Yes	Analysis
5	Ho�veldgroep 2023 (O9)	2023-07-28	2023-07-28	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 3	type Rapid	result 0.5	date 2024-08-16	rnd 5	type Rapid	result 0.5
		Opponent Janse Van Rensburg, D (Daniel)				Opponent Ntladi, T (Tshepiso)
2	2	Tournament Highveld Ridge West 2023				Tournament Highveld Ridge West 2023
		date 2023-08-09	rnd 1	type Rapid	result 1	date 2023-08-09	rnd 2	type Rapid	result 1
		Opponent Basson, H (Hayley)				Opponent Van Der Spuy, J (Joshua)
3	2	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Grobler, L (Lilika)				Opponent Masilela, S (Skanyiso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 3	type Rapid	result 0.5	date 2024-08-16	rnd 5	type Rapid	result 0.5
		Opponent Janse Van Rensburg, D (Daniel)				Opponent Ntladi, T (Tshepiso)
2	2	Tournament Highveld Ridge West 2023				Tournament Highveld Ridge West 2023
		date 2023-08-09	rnd 1	type Rapid	result 1	date 2023-08-09	rnd 2	type Rapid	result 1
		Opponent Basson, H (Hayley)				Opponent Van Der Spuy, J (Joshua)
3	2	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Grobler, L (Lilika)				Opponent Masilela, S (Skanyiso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Highveld Ridge West 2023				Tournament Highveld Ridge West 2023
		date 2023-08-09	rnd 1	type Rapid	result 1	date 2023-08-09	rnd 2	type Rapid	result 1
		Opponent Basson, H (Hayley)				Opponent Van Der Spuy, J (Joshua)
2	2	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Grobler, L (Lilika)				Opponent Masilela, S (Skanyiso)
3	1	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 4	type Rapid	result 1	date 2024-08-16	rnd 4	type Rapid	result 1
		Opponent Labuschagne, J (Juandre)				Opponent Labuschagne, J (Juandre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Highveld Ridge West 2023				Tournament Highveld Ridge West 2023
		date 2023-08-09	rnd 1	type Rapid	result 1	date 2023-08-09	rnd 2	type Rapid	result 1
		Opponent Basson, H (Hayley)				Opponent Van Der Spuy, J (Joshua)
2	2	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Grobler, L (Lilika)				Opponent Masilela, S (Skanyiso)
3	1	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 4	type Rapid	result 1	date 2024-08-16	rnd 4	type Rapid	result 1
		Opponent Labuschagne, J (Juandre)				Opponent Labuschagne, J (Juandre)

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	Grobler ,L (Lilika)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
1	Grobler ,L (Lilika)	3	1163.4	1021.7	0	0	0	3	1139.1	1021.7	0	0	0
2	Labuschagne ,J (Juandre)	2	1	0	0	0	0	2	1	0	0	0	0
2	Labuschagne ,J (Juandre)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
3	Janse Van Rensburg ,D (Daniel)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
3	Janse Van Rensburg ,D (Daniel)	2	1095.7	883.2	0	0	0	2	1041.8	883.2	0	0	0
4	Le Roux ,R (Riano)	2	0	-425	0	0	0	2	0	-425	0	0	0
4	Le Roux ,R (Riano)	2	1200	775	0	0	0	2	1200	775	0	0	0
5	Soko ,O (Okwenkosi)	1	1	425	0	0	0	1	1	425	0	0	0
5	Soko ,O (Okwenkosi)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Mabunga ,D (Dakalo)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Mabunga ,D (Dakalo)	1	1240.4	815.4	0	0	0	1	1269.1	815.4	0	0	0
7	Botha ,B (Ben-Paul)	1	1	425	0	0	0	1	1	425	0	0	0
7	Botha ,B (Ben-Paul)	1	1209.7	1634.7	0	0	0	1	1218	1634.7	0	0	0
8	Van Der Spuy ,J (Joshua)	1	1	425	0	0	0	1	1	425	0	0	0
8	Van Der Spuy ,J (Joshua)	1	1163.3	1588.3	0	0	0	1	1139.6	1588.3	0	0	0
9	Maloka ,S (Sthembiso)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Maloka ,S (Sthembiso)	1	1262.4	837.4	0	0	0	1	1327.9	837.4	0	0	0
10	Hauptfleish ,A (Azer)	1	1	425	0	0	0	1	1	425	0	0	0
10	Hauptfleish ,A (Azer)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Siebert, 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