Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonkers, B (Bradley)

Chess SA id

1030113334

FIDE id

Date of birth

2003-11-20 (Adult)

Gender

Male

Region

ZF Mgcawu (NZF)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1242.8	1249.4	1200	1200
Raw rating	1242.8	1249.4	1200	1200
Weighted rating	1242.8	1249.4	1200	1200
Weighted performance	0	0	0	0
Floor	753	760.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	156	154.5	165.8	165.8
Highest rating	1418.6 2019-04-01	1409.7 2019-04-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1253 2023-03-01	1260.6 2023-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1253 2024-04-01	1260.6 2024-06-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1418.6 2019-04-01	1409.7 2019-04-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1242.8	1249.4	1200	1200
Analysis
Rating	1242.8	1249.4	1200	1200
Raw rating	1242.8	1249.4	1200	1200
Weighted rating	1242.8	1249.4	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	753	760.6	700	700
Max/Min rating change allowed	156	154.5	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	1242.8	1249.4	1200	1200
New weighted rating	1242.8	1249.4	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1242.8	1249.4	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1242.8	1249.4	1200	1200
New K-factor	36	36	36	36
New floor	753	760.6	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	8	8
	0	0
	0	0
History	13	13

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	ZF Mgcawu (NZF)
Province	Northern Cape (NC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	13	7.5	57.69	65.4	1239.7	1305.1
Standard	13	7.5	57.69	65.4	1239.7	1305.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1242.8	1249.4	1200	1200
2025-09-01	1242.8	1249.4	1200	1200
2025-08-01	1242.8	1249.4	1200	1200
2025-07-01	1242.8	1249.4	1200	1200
2025-06-01	1242.8	1249.4	1200	1200
2025-05-01	1242.8	1249.4	1200	1200
2025-04-01	1242.8	1249.4	1200	1200
2025-03-01	1242.8	1249.4	1200	1200
2025-02-01	1242.8	1249.4	1200	1200
2025-01-01	1242.8	1249.4	1200	1200
2024-12-01	1242.8	1249.4	1200	1200
2024-11-01	1242.8	1249.4	1200	1200
2024-10-01	1242.8	1249.4	1200	1200
2024-09-01	1242.8	1249.4	1200	1200
2024-08-01	1242.8	1249.4	1200	1200
2024-07-01	1242.8	1249.4	1200	1200
2024-06-01	1242.8	1249.4	1200	1200
2024-08-01	1242.8	1249.4	1200	1200
2024-04-01	1242.8	1249.4	1200	1200
2024-03-01	1242.8	1249.4	1200	1200
2024-02-01	1242.8	1249.4	1200	1200
2024-01-01	1242.8	1249.4	1200	1200
2023-12-01	1242.8	1249.4	1200	1200
2023-11-01	1242.8	1249.4	1200	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	Sol Plaatje Open II 2023	2023-03-18	2023-03-19	Standard	Frances Baard (NCF)	5	3	1	Yes	Analysis
2	Sol Plaatje Open 2023	2023-02-18	2023-02-19	Standard	Frances Baard (NCF)	5	5	2.5	Yes	Analysis
3	ZFM School Trials 2019 (U18)	2019-04-27	2019-04-27	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis

#	Games	Start				End
1	3	Tournament ZFM School Trials 2019				Tournament ZFM School Trials 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Gobo, M (Mbulelo)				Opponent Basson, A (Anwill Antonio)
2	2	Tournament Sol Plaatje Open 2023				Tournament Sol Plaatje Open 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 3	type Standard	result 1
		Opponent Songca, M (Misokuble)				Opponent Riet, C (Cassious)
3	1	Tournament Sol Plaatje Open II 2023				Tournament Sol Plaatje Open II 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 3	type Standard	result 1
		Opponent Motsamai, T (Tshenolo)				Opponent Motsamai, T (Tshenolo)

#	Games	Start				End
1	3	Tournament ZFM School Trials 2019				Tournament ZFM School Trials 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Gobo, M (Mbulelo)				Opponent Basson, A (Anwill Antonio)
2	2	Tournament Sol Plaatje Open 2023				Tournament Sol Plaatje Open 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 3	type Standard	result 1
		Opponent Songca, M (Misokuble)				Opponent Riet, C (Cassious)
3	1	Tournament Sol Plaatje Open II 2023				Tournament Sol Plaatje Open II 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 3	type Standard	result 1
		Opponent Motsamai, T (Tshenolo)				Opponent Motsamai, T (Tshenolo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament ZFM School Trials 2019				Tournament ZFM School Trials 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Gobo, M (Mbulelo)				Opponent Basson, A (Anwill Antonio)
2	2	Tournament Sol Plaatje Open 2023				Tournament Sol Plaatje Open 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 3	type Standard	result 1
		Opponent Songca, M (Misokuble)				Opponent Riet, C (Cassious)
3	1	Tournament Sol Plaatje Open II 2023				Tournament Sol Plaatje Open II 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 3	type Standard	result 1
		Opponent Motsamai, T (Tshenolo)				Opponent Motsamai, T (Tshenolo)

#	Games	Start				End
1	3	Tournament ZFM School Trials 2019				Tournament ZFM School Trials 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Gobo, M (Mbulelo)				Opponent Basson, A (Anwill Antonio)
2	2	Tournament Sol Plaatje Open 2023				Tournament Sol Plaatje Open 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 3	type Standard	result 1
		Opponent Songca, M (Misokuble)				Opponent Riet, C (Cassious)
3	1	Tournament Sol Plaatje Open II 2023				Tournament Sol Plaatje Open II 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 3	type Standard	result 1
		Opponent Motsamai, T (Tshenolo)				Opponent Motsamai, T (Tshenolo)

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	Ahjum ,SHA (Savannah)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Ahjum ,SHA (Savannah)	1	1547.9	1122.9	1	1567.1	1122.9	0	0	0	0	0	0
2	Mokapane ,T (Tshepo)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Mokapane ,T (Tshepo)	1	1346	921	1	1353.6	921	0	0	0	0	0	0
3	Basson ,A (Anwill Antonio)	1	1	425	1	1	425	0	0	0	0	0	0
3	Basson ,A (Anwill Antonio)	1	1198.7	1623.7	1	1198.4	1623.7	0	0	0	0	0	0
4	Mithi ,D (Dumiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mithi ,D (Dumiso)	1	1469.5	1044.5	1	1474.5	1044.5	0	0	0	0	0	0
5	Sibanda ,M (Michael)	1	1	425	1	1	425	0	0	0	0	0	0
5	Sibanda ,M (Michael)	1	1071.5	1496.5	1	1051.6	1496.5	0	0	0	0	0	0
6	Riet ,C (Cassious)	1	1	425	1	1	425	0	0	0	0	0	0
6	Riet ,C (Cassious)	1	1278	1703	1	1298.4	1703	0	0	0	0	0	0
7	Gobo ,M (Mbulelo)	1	1	425	1	1	425	0	0	0	0	0	0
7	Gobo ,M (Mbulelo)	1	1117	1542	1	1099.6	1542	0	0	0	0	0	0
8	Motsamai ,T (Tshenolo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Motsamai ,T (Tshenolo)	1	1176.3	1601.3	1	1176	1601.3	0	0	0	0	0	0
9	Ayton ,V (Vahan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ayton ,V (Vahan)	1	1168.5	1593.5	1	1162	1593.5	0	0	0	0	0	0
10	Songca ,M (Misokuble)	1	1	425	1	1	425	0	0	0	0	0	0
10	Songca ,M (Misokuble)	1	1088	1513	1	1086.8	1513	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Jonkers, B (Bradley)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms