Chess South Africa Ratings Database

PLAYER PAGE

Personal

Donald, J (Joshua)

Chess SA id

1060134486

FIDE id

Date of birth

2006-10-17 (U20)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-01-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1447.6	1428.7	1078.2	1170.6
Raw rating	1447.6	1428.7	1078.2	1170.6
Weighted rating	1444	1425.9	1078.2	1170.6
Weighted performance	1006.1	1030	0	0
Floor	992.8	975.4	605.4	670.6
K-factor	32	32	40	40
Min/Max rating change allowed	116.5	119.7	197.2	172.9
Highest rating	1542.7 2023-03-01	1555.6 2023-03-01	1200 2019-12-01	1321.2 2023-01-01
Highest raw rating	1492.8 2023-04-01	1475.4 2023-10-01	1105.4 2019-12-01	1170.6 2024-02-01
Highest weighted rating	1492.8 2025-02-01	1475.4 2025-03-01	1105.4 2024-11-01	1170.6 2024-11-01
Highest weighted performance	1542.7 2023-03-01	1555.6 2023-03-01	1200 2019-12-01	1321.2 2023-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1447.6	1428.7	1078.2	1170.6
Analysis
Rating	1447.6	1428.7	1078.2	1170.6
Raw rating	1447.6	1428.7	1078.2	1170.6
Weighted rating	1444	1425.9	1078.2
Weighted performance	1006.1	1030	0
K-factor	32	32	40	40
Floor	992.8	975.4	605.4	670.6
Max/Min rating change allowed	116.5	119.7	197.2	172.9
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	1447.6	1428.7	1078.2	1170.6
New weighted rating	1444	1425.8	1078.2	1170.6
New weighted performance	1005.7	1029.5	0	0
Temp new rating	1447.6	1428.7	1078.2	1170.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1447.6	1428.7	1078.2	1170.6
New K-factor	32	32	40	40
New floor	992.8	975.4	605.4	670.6

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	5	5	0	0
	34	20	0	14
	18	10	0	8
	10	0	10	0
History	67	35	10	22

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Johannesburg Metro (GJM)
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	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	67	37	55.22	44.4	1397.7	1442.1
Standard	35	20.5	58.57	72.9	1375.9	1448.8
Rapid	10	5.5	55	42.5	1278.1	1320.6
Blitz	22	11	50	0	1486.6	1486.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1447.6	1428.7	1078.2	1170.6
2025-09-01	1447.6	1428.7	1078.2	1170.6
2025-08-01	1447.6	1428.7	1078.2	1170.6
2025-07-01	1447.6	1428.7	1078.2	1170.6
2025-06-01	1447.6	1428.7	1078.2	1170.6
2025-05-01	1447.6	1428.7	1078.2	1170.6
2025-04-01	1447.6	1428.7	1078.2	1170.6
2025-03-01	1447.6	1428.7	1078.2	1170.6
2025-02-01	1447.6	1428.1	1078.2	1170.6
2025-01-01	1435.8	1418.8	1078.2	1170.6
2024-12-01	1435.8	1418.8	1078.2	1170.6
2024-11-01	1435.8	1418.8	1078.2	1170.6
2024-10-01	1435.8	1418.8	1078.2	1170.6
2024-09-01	1435.8	1418.8	1078.2	1170.6
2024-08-01	1435.8	1418.8	1078.2	1170.6
2024-07-01	1435.8	1418.8	1078.2	1170.6
2024-06-01	1435.8	1418.8	1078.2	1170.6
2024-08-01	1435.8	1418.8	1078.2	1170.6
2024-04-01	1435.8	1418.8	1078.2	1170.6
2024-03-01	1435.8	1418.8	1078.2	1170.6
2024-02-01	1435.8	1418.8	1078.2	1170.6
2024-01-01	1489.3	1475.4	1078.2	1170.6
2023-12-01	1489.3	1475.4	1078.2	1170.6
2023-11-01	1489.3	1475.4	1078.2	1170.6

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	2024 Gauteng Inter-Region Chess Championship (U18A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
2	JMC Closed Aug 2023 (U18+U20)	2023-08-04	2023-08-06	Standard	Johannesburg Metro (GJM)	6	5	2.5	Yes	Analysis
3	JMC Trinity Little Falls 2023 (C)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
4	JMC - The Higher Ground Restaurant 2nd Blitz Event 2023	2023-07-30	2023-07-30	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
5	JNW Open - Crawford 2023 (B)	2023-03-04	2023-03-04	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
6	AG Visser Open 2023 (A+B)	2023-02-18	2023-02-18	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
7	Chess WP Individual Blitz 2023 (Open)	2023-01-03	2023-01-03	Blitz	Cape Town (WCT)	7	7	4	Yes	Analysis
8	JMC 2nd Trials 2022 (B)	2022-08-27	2022-08-27	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
9	JMC Blitz Open 8 August 2022 (A)	2022-08-08	2022-08-08	Blitz	Johannesburg Metro (GJM)	9	8	3	Yes	Analysis
10	JMC Trials 1 - Laerskool Fontainebleau 2022 (U16+U18)	2022-07-24	2022-07-24	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
11	JMC Helpmekaar 2021 (U16)	2021-09-06	2021-09-06	Rapid	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
12	CWP Youth Day Rapid 2021 (U16)	2021-06-16	2021-06-16	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament Chess WP Individual Blitz 2023				Tournament JNW Open - Crawford 2023
		date 2023-01-03	rnd 6	type Blitz	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Oosthuizen, E (Ethan)				Opponent Naidoo, K (Kajol)
2	4	Tournament CWP Youth Day Rapid 2021				Tournament JMC Helpmekaar 2021
		date 2021-06-16	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 1	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Mangana, K (Keratilwe)
3	3	Tournament JMC Closed Aug 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-06	rnd 5	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Pretorius, K (Klarissa)				Opponent Tshabalala, R (Reboane)

#	Games	Start				End
1	8	Tournament AG Visser Open 2023				Tournament JNW Open - Crawford 2023
		date 2023-02-18	rnd 1	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Ma, B (Ben)				Opponent Naidoo, K (Kajol)
2	3	Tournament JMC Closed Aug 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-06	rnd 5	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Pretorius, K (Klarissa)				Opponent Tshabalala, R (Reboane)
3	3	Tournament JNW Open - Crawford 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-07-02	rnd 2	type Standard	result 1
		Opponent Mungal, Z (Zoey)				Opponent Klaas, O (Oyintanda)

#	Games	Start				End
1	4	Tournament CWP Youth Day Rapid 2021				Tournament JMC Helpmekaar 2021
		date 2021-06-16	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 1	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Mangana, K (Keratilwe)
2	1	Tournament JMC Helpmekaar 2021				Tournament JMC Helpmekaar 2021
		date 2021-09-06	rnd 5	type Rapid	result 0.5	date 2021-09-06	rnd 5	type Rapid	result 0.5
		Opponent Mazibuko, T (Thembinkosi)				Opponent Mazibuko, T (Thembinkosi)
3	1	Tournament JMC Helpmekaar 2021				Tournament JMC Helpmekaar 2021
		date 2021-09-06	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 3	type Rapid	result 1
		Opponent Shatlin, D (Damien)				Opponent Shatlin, D (Damien)

#	Games	Start				End
1	3	Tournament Chess WP Individual Blitz 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-01-03	rnd 6	type Blitz	result 1	date 2023-07-30	rnd 1	type Blitz	result 1
		Opponent Oosthuizen, E (Ethan)				Opponent Subroyen, J (Jeevesh)
2	2	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 3	type Blitz	result 1	date 2023-07-30	rnd 4	type Blitz	result 1
		Opponent Venter, C (Christiaan)				Opponent Stelloh, S (Sebastian)
3	2	Tournament Chess WP Individual Blitz 2023				Tournament Chess WP Individual Blitz 2023
		date 2023-01-03	rnd 3	type Blitz	result 1	date 2023-01-03	rnd 4	type Blitz	result 1
		Opponent Gorrie, D (Dylan)				Opponent Chiriya, T (Takudzwa)

#	Games	Start				End
1	7	Tournament Chess WP Individual Blitz 2023				Tournament AG Visser Open 2023
		date 2023-01-03	rnd 6	type Blitz	result 1	date 2023-02-18	rnd 5	type Standard	result 1
		Opponent Oosthuizen, E (Ethan)				Opponent Williams, A (Anika)
2	4	Tournament CWP Youth Day Rapid 2021				Tournament JMC Helpmekaar 2021
		date 2021-06-16	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 1	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Mangana, K (Keratilwe)
3	3	Tournament JMC Closed Aug 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-06	rnd 5	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Pretorius, K (Klarissa)				Opponent Tshabalala, R (Reboane)

#	Games	Start				End
1	5	Tournament AG Visser Open 2023				Tournament AG Visser Open 2023
		date 2023-02-18	rnd 1	type Standard	result 1	date 2023-02-18	rnd 5	type Standard	result 1
		Opponent Ma, B (Ben)				Opponent Williams, A (Anika)
2	3	Tournament JMC Closed Aug 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-06	rnd 5	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Pretorius, K (Klarissa)				Opponent Tshabalala, R (Reboane)
3	3	Tournament JNW Open - Crawford 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-07-02	rnd 2	type Standard	result 1
		Opponent Mungal, Z (Zoey)				Opponent Klaas, O (Oyintanda)

#	Games	Start				End
1	4	Tournament CWP Youth Day Rapid 2021				Tournament JMC Helpmekaar 2021
		date 2021-06-16	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 1	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Mangana, K (Keratilwe)
2	1	Tournament JMC Helpmekaar 2021				Tournament JMC Helpmekaar 2021
		date 2021-09-06	rnd 3	type Rapid	result 1	date 2021-09-06	rnd 3	type Rapid	result 1
		Opponent Shatlin, D (Damien)				Opponent Shatlin, D (Damien)

#	Games	Start				End
1	3	Tournament Chess WP Individual Blitz 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-01-03	rnd 6	type Blitz	result 1	date 2023-07-30	rnd 1	type Blitz	result 1
		Opponent Oosthuizen, E (Ethan)				Opponent Subroyen, J (Jeevesh)
2	2	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 3	type Blitz	result 1	date 2023-07-30	rnd 4	type Blitz	result 1
		Opponent Venter, C (Christiaan)				Opponent Stelloh, S (Sebastian)
3	2	Tournament Chess WP Individual Blitz 2023				Tournament Chess WP Individual Blitz 2023
		date 2023-01-03	rnd 3	type Blitz	result 1	date 2023-01-03	rnd 4	type Blitz	result 1
		Opponent Gorrie, D (Dylan)				Opponent Chiriya, T (Takudzwa)

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	Jones ,W (William)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Jones ,W (William)	2	1563.4	1138.4	2	1560.4	1138.4	0	0	0	0	0	0
2	Joseph ,J (Jamie)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Joseph ,J (Jamie)	2	1308.7	1096.2	2	1316.4	1096.2	0	0	0	0	0	0
3	Johnson ,C (Caleb)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
3	Johnson ,C (Caleb)	2	1520.4	1307.9	1	1513.9	1520.4	1	1200	1095.4	0	0	0
4	Li ,Z (Zhengfei)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Li ,Z (Zhengfei)	1	1505.2	1080.2	1	1450	1080.2	0	0	0	0	0	0
5	Mungal ,Z (Zoey)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mungal ,Z (Zoey)	1	1435.9	1860.9	1	1462.2	1860.9	0	0	0	0	0	0
6	Thomas ,H (Hayden)	1	1	425	1	1	425	0	0	0	0	0	0
6	Thomas ,H (Hayden)	1	1200.7	1625.7	1	1199.6	1625.7	0	0	0	0	0	0
7	Shen Yu ,F (Frank)	1	1	425	1	1	425	0	0	0	0	0	0
7	Shen Yu ,F (Frank)	1	1394	1819	1	1389.9	1819	0	0	0	0	0	0
8	Moyana ,D (David)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Moyana ,D (David)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Reyneke ,HJ (Hugo Josephus)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Reyneke ,HJ (Hugo Josephus)	1	1511.9	1511.9	1	1535	1511.9	0	0	0	0	0	0
10	Chinoruma ,T (Tawana)	1	1	425	1	1	425	0	0	0	0	0	0
10	Chinoruma ,T (Tawana)	1	1373.1	1798.1	1	1367.9	1798.1	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

Donald, J (Joshua)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms