Chess South Africa Ratings Database

PLAYER PAGE

Personal

Joubert, J (Joshia)

Chess SA id

1070307565

FIDE id

Date of birth

2007-08-21 (U20)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1179.6	1162.7	1216.4	1200
Raw rating	1179.6	1162.7	1216.4	1200
Weighted rating	1164.1	1157.5	1197.5	1200
Weighted performance	0	0	0	0
Floor	700	700	716.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.7	174.9	162	165.8
Highest rating	1200 2024-07-01	1200 2024-07-01	1216.4 2025-09-30	1200 2024-10-01
Highest raw rating	1200 2024-07-01	1200 2024-07-01	1216.4 2025-09-30	1200 2024-10-01
Highest weighted rating	1200 2024-07-01	1200 2024-07-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1179.6	1162.7	1216.4	1200
Analysis
Rating	1179.6	1162.7	1216.4	1200
Raw rating	1179.6	1162.7	1216.4	1200
Weighted rating	1164.1	1157.5	1197.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	716.4	700
Max/Min rating change allowed	170.7	174.9	162	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	1179.6	1162.7	1216.4	1200
New weighted rating	1164.8	1157.2	1199	1200
New weighted performance	0	0	0	0
Temp new rating	1179.6	1162.7	1216.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1179.6	1162.7	1216.4	1200
New K-factor	36	36	36	36
New floor	700	700	716.4	700

Item	Main	Standard	Rapid
	0	0	0
	8	0	8
	9	4	5
	0	0	0
	0	0	0
	0	0	0
History	17	4	13

Games since
	Main 17	Standard 4		Rapid 13		Blitz 0
Gender	Male
Age group	U20
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	8	4	50	0	1187.4	1187.4
Standard	0	0	0	0	0	0
Rapid	8	4	50	0	1187.4	1187.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	17	6	35.29	-125	1188.6	1063.6
Standard	4	0	0	-425	1200.8	775.8
Rapid	13	6	46.15	-32.7	1184.8	1152.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1179.6	1162.7	1216.4	1200
2025-09-01	1166.6	1162.7	1196.3	1200
2025-08-01	1166.6	1162.7	1196.3	1200
2025-07-01	1166.6	1162.7	1196.3	1200
2025-06-01	1166.6	1162.7	1196.3	1200
2025-05-01	1166.6	1162.7	1196.3	1200
2025-04-01	1166.6	1162.7	1195	1200
2025-03-01	1168.2	1162.7	1196.7	1200
2025-02-01	1166.5	1160.8	1195.8	1200
2025-01-01	1129.3	1120	1181.6	1200
2024-12-01	1129.3	1120	1181.6	1200
2024-11-01	1133.6	1120	1200	1200
2024-10-01	1133.6	1120	1200	1200
2024-09-01	1133.6	1120	1200	1200
2024-08-01	1133.6	1120	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2023-11-01	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	Eureka Skooltoernooi - 29 Aug 2025 (A)	2025-08-29	2025-08-29	Rapid	Sedibeng (GSV)	4	3	2	Yes	Analysis
2	Eureka Chess Open 26 July 2025 (LSEN A)	2025-07-26	2025-07-26	Standard	Sedibeng (GSV)	5	0	0	No	Analysis
3	Destinata Rapid Open 025 (LSEN)	2025-03-15	2025-03-15	Rapid	Sedibeng (GSV)	6	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eureka Skooltoernooi - 29 Aug 2025 (A)	2025-08-29	2025-08-29	Rapid	Sedibeng (GSV)	4	3	2	Yes	Analysis
2	Eureka Chess Open 26 July 2025 (LSEN A)	2025-07-26	2025-07-26	Standard	Sedibeng (GSV)	5	0	0	No	Analysis
3	Destinata Rapid Open 025 (LSEN)	2025-03-15	2025-03-15	Rapid	Sedibeng (GSV)	6	5	2	Yes	Analysis
4	Laerskool Midvaal Rapid 16 Nov 2024 (LSEN)	2024-11-16	2024-11-16	Rapid	Sedibeng (GSV)	5	5	2	Yes	Analysis
5	Eureka Open 27 July 2024 (LSEN A)	2024-07-27	2024-07-27	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis

#	Games	Start				End
1	3	Tournament Eureka Skooltoernooi - 29 Aug 2025				Tournament Eureka Skooltoernooi - 29 Aug 2025
		date 2025-08-29	rnd 2	type Rapid	result 0.5	date 2025-08-29	rnd 4	type Rapid	result 1
		Opponent Martens, V (Venetia)				Opponent Willer, D (Dewald)
2	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Destinata Rapid Open 025
		date 2024-11-16	rnd 5	type Rapid	result 1	date 2025-03-15	rnd 1	type Rapid	result 1
		Opponent Lubbe, T (Tiaan)				Opponent Labuschagne, K (Kylie)
3	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Laerskool Midvaal Rapid 16 Nov 2024
		date 2024-11-16	rnd 2	type Rapid	result 0.5	date 2024-11-16	rnd 3	type Rapid	result 0.5
		Opponent Labuschagne, K (Kylie)				Opponent Van Der Merwe, B (Braam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Eureka Skooltoernooi - 29 Aug 2025				Tournament Eureka Skooltoernooi - 29 Aug 2025
		date 2025-08-29	rnd 2	type Rapid	result 0.5	date 2025-08-29	rnd 4	type Rapid	result 1
		Opponent Martens, V (Venetia)				Opponent Willer, D (Dewald)
2	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Destinata Rapid Open 025
		date 2024-11-16	rnd 5	type Rapid	result 1	date 2025-03-15	rnd 1	type Rapid	result 1
		Opponent Lubbe, T (Tiaan)				Opponent Labuschagne, K (Kylie)
3	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Laerskool Midvaal Rapid 16 Nov 2024
		date 2024-11-16	rnd 2	type Rapid	result 0.5	date 2024-11-16	rnd 3	type Rapid	result 0.5
		Opponent Labuschagne, K (Kylie)				Opponent Van Der Merwe, B (Braam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Destinata Rapid Open 025
		date 2024-11-16	rnd 5	type Rapid	result 1	date 2025-03-15	rnd 1	type Rapid	result 1
		Opponent Lubbe, T (Tiaan)				Opponent Labuschagne, K (Kylie)
2	1	Tournament Eureka Skooltoernooi - 29 Aug 2025				Tournament Eureka Skooltoernooi - 29 Aug 2025
		date 2025-08-29	rnd 4	type Rapid	result 1	date 2025-08-29	rnd 4	type Rapid	result 1
		Opponent Willer, D (Dewald)				Opponent Willer, D (Dewald)
3	1	Tournament Destinata Rapid Open 025				Tournament Destinata Rapid Open 025
		date 2025-03-15	rnd 4	type Rapid	result 1	date 2025-03-15	rnd 4	type Rapid	result 1
		Opponent Wessels, R (Ruan)				Opponent Wessels, R (Ruan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Laerskool Midvaal Rapid 16 Nov 2024				Tournament Destinata Rapid Open 025
		date 2024-11-16	rnd 5	type Rapid	result 1	date 2025-03-15	rnd 1	type Rapid	result 1
		Opponent Lubbe, T (Tiaan)				Opponent Labuschagne, K (Kylie)
2	1	Tournament Eureka Skooltoernooi - 29 Aug 2025				Tournament Eureka Skooltoernooi - 29 Aug 2025
		date 2025-08-29	rnd 4	type Rapid	result 1	date 2025-08-29	rnd 4	type Rapid	result 1
		Opponent Willer, D (Dewald)				Opponent Willer, D (Dewald)
3	1	Tournament Destinata Rapid Open 025				Tournament Destinata Rapid Open 025
		date 2025-03-15	rnd 4	type Rapid	result 1	date 2025-03-15	rnd 4	type Rapid	result 1
		Opponent Wessels, R (Ruan)				Opponent Wessels, R (Ruan)

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	Martens ,V (Venetia)	2	0.5	-212.5	1	0	-425	1	0.5	0	0	0	0
1	Martens ,V (Venetia)	2	1194.7	982.2	1	1200	769.7	1	1199.7	1194.7	0	0	0
2	Labuschagne ,K (Kylie)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
2	Labuschagne ,K (Kylie)	2	1196.6	1409.1	0	0	0	2	1194.8	1409.1	0	0	0
3	Stoltz ,C (Clarissa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Stoltz ,C (Clarissa)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Plaatjies ,C (Clayton)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Plaatjies ,C (Clayton)	1	1203	778	1	1203.6	778	0	0	0	0	0	0
5	Stoop ,J (Johannes)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Stoop ,J (Johannes)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Ross ,H (Henkie)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Ross ,H (Henkie)	1	1194.8	769.8	0	0	0	1	1218	769.8	0	0	0
7	Mlambo ,N (Nyiko)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Mlambo ,N (Nyiko)	1	1199.4	774.4	0	0	0	1	1200	774.4	0	0	0
8	Walker ,T (Tyrone)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Walker ,T (Tyrone)	1	1159.2	734.2	0	0	0	1	1200	734.2	0	0	0
9	Lubbe ,T (Tiaan)	1	1	425	0	0	0	1	1	425	0	0	0
9	Lubbe ,T (Tiaan)	1	1145	1570	0	0	0	1	1200	1570	0	0	0
10	Wessels ,R (Ruan)	1	1	425	0	0	0	1	1	425	0	0	0
10	Wessels ,R (Ruan)	1	1168.1	1593.1	0	0	0	1	1200	1593.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Joubert, J (Joshia)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms