Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonker, M (Marisa)

Chess SA id

2110099288

FIDE id

Date of birth

2011-06-02 (U16)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-12-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1053.6	1037.6	1200	1200
Raw rating	1053.6	1037.6	1200	1200
Weighted rating	1053.6	1037.6	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	204.3	209	165.8	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1053.6	1037.6	1200	1200
Analysis
Rating	1053.6	1037.6	1200	1200
Raw rating	1053.6	1037.6	1200	1200
Weighted rating	1053.6	1037.6	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	204.3	209	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	1053.6	1037.6	1200	1200
New weighted rating	1053.6	1037.6	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1053.6	1037.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1053.6	1037.6	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	21	21

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-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	21	5.5	26.19	-202.4	1180.3	977.9
Standard	21	5.5	26.19	-202.4	1180.3	977.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1053.6	1037.6	1200	1200
2025-09-01	1053.6	1037.6	1200	1200
2025-08-01	1053.6	1037.6	1200	1200
2025-07-01	1053.6	1037.6	1200	1200
2025-06-01	1053.6	1037.6	1200	1200
2025-05-01	1053.6	1037.6	1200	1200
2025-04-01	1053.6	1037.6	1200	1200
2025-03-01	1053.6	1037.6	1200	1200
2025-02-01	1053.6	1037.6	1200	1200
2025-01-01	1053.6	1037.6	1200	1200
2024-12-01	1053.6	1037.6	1200	1200
2024-11-01	1053.6	1037.6	1200	1200
2024-10-01	1053.6	1037.6	1200	1200
2024-09-01	1053.6	1037.6	1200	1200
2024-08-01	1053.6	1037.6	1200	1200
2024-07-01	1053.6	1037.6	1200	1200
2024-06-01	1053.6	1037.6	1200	1200
2024-08-01	1053.6	1037.6	1200	1200
2024-04-01	1053.6	1037.6	1200	1200
2024-03-01	1053.6	1037.6	1200	1200
2024-02-01	1053.6	1037.6	1200	1200
2024-01-01	1053.6	1037.6	1200	1200
2023-12-01	1053.6	1037.6	1200	1200
2023-11-01	1053.6	1037.6	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	South African Junior Team Championships 2018 (U8B+U8 Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
2	Inter Region GE vs JHB Metro 2018 (U8)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
3	Fonties Challenge 2018 (U7)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	4	1.5	Yes	Analysis
4	The Outpost Chess Club Open 2018 (Development)	2018-03-17	2018-03-17	Standard	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Williams, C (Caden)				Opponent Williams, C (Caden)
2	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Veldman, C (Chantane)
3	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 5	type Standard	result 0.5	date 2018-04-21	rnd 5	type Standard	result 0.5
		Opponent Slabbert, M (Mianke)				Opponent Slabbert, M (Mianke)

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Williams, C (Caden)				Opponent Williams, C (Caden)
2	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Veldman, C (Chantane)
3	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 5	type Standard	result 0.5	date 2018-04-21	rnd 5	type Standard	result 0.5
		Opponent Slabbert, M (Mianke)				Opponent Slabbert, M (Mianke)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Williams, C (Caden)				Opponent Williams, C (Caden)
2	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Veldman, C (Chantane)
3	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 3	type Standard	result 1
		Opponent Janse Van Rensburg, G (Gunther)				Opponent Janse Van Rensburg, G (Gunther)

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Williams, C (Caden)				Opponent Williams, C (Caden)
2	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Veldman, C (Chantane)
3	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 3	type Standard	result 1
		Opponent Janse Van Rensburg, G (Gunther)				Opponent Janse Van Rensburg, G (Gunther)

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	Van Der Merwe ,D (Divan)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Der Merwe ,D (Divan)	2	1170.1	745.1	2	1163.8	745.1	0	0	0	0	0	0
2	Pillay ,Z (Zac)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Pillay ,Z (Zac)	2	1161.8	736.8	2	1152.7	736.8	0	0	0	0	0	0
3	Mulovhedzi ,H (Hope)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mulovhedzi ,H (Hope)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Van Niekerk ,D (Dillan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Niekerk ,D (Dillan)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Brink ,C (Charlene)	1	1	425	1	1	425	0	0	0	0	0	0
5	Brink ,C (Charlene)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Klopper ,PA (Phillippus Arnoldus)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Klopper ,PA (Phillippus Arnoldus)	1	1103.7	678.7	1	1098.8	678.7	0	0	0	0	0	0
7	Fourie ,N (Nine Mari)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fourie ,N (Nine Mari)	1	1201.2	776.2	1	1196.4	776.2	0	0	0	0	0	0
8	D`Alton ,E (Ezra)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	D`Alton ,E (Ezra)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Meij ,A (Ariel)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Meij ,A (Ariel)	1	1132.2	707.2	1	1118.6	707.2	0	0	0	0	0	0
10	Van Niekerk ,M (Mikayla)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Van Niekerk ,M (Mikayla)	1	1200	775	1	1200	775	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

Jonker, M (Marisa)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms