Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ogbonna, M (Mirriam)

Chess SA id

2060136390

FIDE id

Date of birth

2006-09-07 (Adult)

Gender

Female

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-09-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	957	940.4	1200	1200
Raw rating	957	940.4	1200	1200
Weighted rating	957	940.4	1200	1200
Weighted performance	518.5	515.6	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	234.4	240	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	957	940.4	1200	1200
Analysis
Rating	957	940.4	1200	1200
Raw rating	957	940.4	1200	1200
Weighted rating	957	940.4	1200
Weighted performance	518.5	515.6	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	234.4	240	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	957	940.4	1200	1200
New weighted rating	957	940.4	1200	1200
New weighted performance	512.6	509.8	0	0
Temp new rating	957	940.4	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	957	940.4	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
	35	35
	0	0
History	35	35

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	35	7	20	-255	1172.6	917.6
Standard	35	7	20	-255	1172.6	917.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	957	940.4	1200	1200
2025-11-30	957	940.4	1200	1200
2025-11-01	957	940.4	1200	1200
2025-09-30	957	940.4	1200	1200
2025-09-01	957	940.4	1200	1200
2025-08-01	957	940.4	1200	1200
2025-07-01	957	940.4	1200	1200
2025-06-01	957	940.4	1200	1200
2025-05-01	957	940.4	1200	1200
2025-04-01	957	940.4	1200	1200
2025-03-01	957	940.4	1200	1200
2025-02-01	957	940.4	1200	1200
2025-01-01	957	940.4	1200	1200
2024-12-01	957	940.4	1200	1200
2024-11-01	957	940.4	1200	1200
2024-10-01	957	940.4	1200	1200
2024-09-01	957	940.4	1200	1200
2024-11-01	957	940.4	1200	1200
2024-07-01	957	940.4	1200	1200
2024-06-01	957	940.4	1200	1200
2024-05-01	957	940.4	1200	1200
2024-04-01	957	940.4	1200	1200
2024-03-01	957	940.4	1200	1200
2024-02-01	957	940.4	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	Harties Wolf Pack 2023 (Knights)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	0	0	No	Analysis
2	Larries The Final Wild Card Tournament 2022 (Knights)	2022-09-17	2022-09-17	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
3	Bojanala SAJCC Trials 2022 (U18)	2022-09-23	2022-09-23	Standard	Bojanala Platina (NBR)	5	4	0	Yes	Analysis
4	Bojanala Chess Federation Wildcards 2022 (Knights)	2022-08-20	2022-08-20	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Bojanala Chess Federation Clash of Schools 2022 (HS Seniors)	2022-07-23	2022-07-23	Standard	Bojanala Platina (NBR)	4	3	0	Yes	Analysis
6	Bojanala Chess Federation Clash of Schools 2022 (HS Juniors)	2022-07-23	2022-07-23	Standard	Bojanala Platina (NBR)	4	4	1	Yes	Analysis
7	Winter Games Chess Championships 2022 (U17 Girls)	2022-04-30	2022-04-30	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
8	Lebone II 2022 (D)	2022-02-12	2022-02-12	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
9	The Meridian 2022 (Open)	2022-01-22	2022-01-22	Standard	Bojanala Platina (NBR)	5	4	0	Yes	Analysis

#	Games	Start				End
1	2	Tournament Lebone II 2022				Tournament Winter Games Chess Championships 2022
		date 2022-02-12	rnd 5	type Standard	result 1	date 2022-04-30	rnd 1	type Standard	result 1
		Opponent Nkone, O (Onthatile)				Opponent Tsikira, B (Britney)
2	1	Tournament Larries The Final Wild Card Tournament 2022				Tournament Larries The Final Wild Card Tournament 2022
		date 2022-09-17	rnd 3	type Standard	result 1	date 2022-09-17	rnd 3	type Standard	result 1
		Opponent Nong, L (Lethabo)				Opponent Nong, L (Lethabo)
3	1	Tournament Bojanala Chess Federation Wildcards 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Masingi, A (Amogelang)				Opponent Masingi, A (Amogelang)

#	Games	Start				End
1	2	Tournament Lebone II 2022				Tournament Winter Games Chess Championships 2022
		date 2022-02-12	rnd 5	type Standard	result 1	date 2022-04-30	rnd 1	type Standard	result 1
		Opponent Nkone, O (Onthatile)				Opponent Tsikira, B (Britney)
2	1	Tournament Larries The Final Wild Card Tournament 2022				Tournament Larries The Final Wild Card Tournament 2022
		date 2022-09-17	rnd 3	type Standard	result 1	date 2022-09-17	rnd 3	type Standard	result 1
		Opponent Nong, L (Lethabo)				Opponent Nong, L (Lethabo)
3	1	Tournament Bojanala Chess Federation Wildcards 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Masingi, A (Amogelang)				Opponent Masingi, A (Amogelang)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Lebone II 2022				Tournament Winter Games Chess Championships 2022
		date 2022-02-12	rnd 5	type Standard	result 1	date 2022-04-30	rnd 1	type Standard	result 1
		Opponent Nkone, O (Onthatile)				Opponent Tsikira, B (Britney)
2	1	Tournament Larries The Final Wild Card Tournament 2022				Tournament Larries The Final Wild Card Tournament 2022
		date 2022-09-17	rnd 3	type Standard	result 1	date 2022-09-17	rnd 3	type Standard	result 1
		Opponent Nong, L (Lethabo)				Opponent Nong, L (Lethabo)
3	1	Tournament Bojanala Chess Federation Wildcards 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Masingi, A (Amogelang)				Opponent Masingi, A (Amogelang)

#	Games	Start				End
1	2	Tournament Lebone II 2022				Tournament Winter Games Chess Championships 2022
		date 2022-02-12	rnd 5	type Standard	result 1	date 2022-04-30	rnd 1	type Standard	result 1
		Opponent Nkone, O (Onthatile)				Opponent Tsikira, B (Britney)
2	1	Tournament Larries The Final Wild Card Tournament 2022				Tournament Larries The Final Wild Card Tournament 2022
		date 2022-09-17	rnd 3	type Standard	result 1	date 2022-09-17	rnd 3	type Standard	result 1
		Opponent Nong, L (Lethabo)				Opponent Nong, L (Lethabo)
3	1	Tournament Bojanala Chess Federation Wildcards 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Masingi, A (Amogelang)				Opponent Masingi, A (Amogelang)

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	Sibiya ,A (Abigail)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Sibiya ,A (Abigail)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Moeng ,K (Keamogetswe)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Moeng ,K (Keamogetswe)	1	1183.2	758.2	1	1177.9	758.2	0	0	0	0	0	0
3	Bogopane ,T (Tlhomamo)	1	1	425	1	1	425	0	0	0	0	0	0
3	Bogopane ,T (Tlhomamo)	1	1045.4	1470.4	1	1020.4	1470.4	0	0	0	0	0	0
4	Van Staden ,R (Ruan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Staden ,R (Ruan)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Matlakgomo ,G (Goboitshepo)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Matlakgomo ,G (Goboitshepo)	1	1214.3	789.3	1	1217.2	789.3	0	0	0	0	0	0
6	Kihoro ,C (Caleb Ngugi)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kihoro ,C (Caleb Ngugi)	1	1224.9	799.9	1	1229.6	799.9	0	0	0	0	0	0
7	Mokoena ,T (Thoriso)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mokoena ,T (Thoriso)	1	1226.6	801.6	1	1239.2	801.6	0	0	0	0	0	0
8	Matshego ,T (Tshiamo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Matshego ,T (Tshiamo)	1	1142.6	717.6	1	1126	717.6	0	0	0	0	0	0
9	Phemelo ,M (Molabatsi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Phemelo ,M (Molabatsi)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Molaudzi ,W (William)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Molaudzi ,W (William)	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

Ogbonna, M (Mirriam)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms