Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mwembe, R (Rachel)

Chess SA id

2150302610

FIDE id

Date of birth

2015-04-06 (U12)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1155	1200	1126.8	1200
Raw rating	1105	1200	1052.4	1200
Weighted rating	1155	1200	1126.8	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	189.9	165.8	204.6	165.8
Highest rating	1200 2024-11-01	1200 2024-05-01	1200 2024-11-01	1200 2024-05-01
Highest raw rating	1200 2024-04-01	1200 2024-05-01	1200 2024-04-01	1200 2024-05-01
Highest weighted rating	1200 2024-11-01	1200 2024-05-01	1200 2024-11-01	1200 2024-05-01
Highest weighted performance	1200 2024-12-01	1200 2024-05-01	1200 2024-12-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-4.8	0	-7.2	0
New rating	1150.3	1200	1119.6	1200
Analysis
Rating	1155	1200	1126.8	1200
Raw rating	1105	1200	1052.4	1200
Weighted rating	1155	1200	1126.8
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	189.9	165.8	204.6	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	1105	1200	1052.4	1200
New weighted rating	1150.3	1200	1119.6	1200
New weighted performance	0	0	0	0
Temp new rating	1150.3	1200	1119.6	1200
Temp new rating +/-	-4.8	0	-7.2	0
Final new rating +/-	-4.8	0	-7.2	0
New rating	1150.3	1200	1119.6	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Rapid
	0	0
	12	12
	5	5
	0	0
	0	0
	0	0
History	17	17

Games since
	Main 17	Standard 0		Rapid 17		Blitz 0
Gender	Female
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	12	2	16.67	-283.3	1198.1	914.7
Standard	0	0	0	0	0	0
Rapid	12	2	16.67	-283.3	1198.1	914.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	17	2.5	14.71	-300	1196.3	896.3
Standard	0	0	0	0	0	0
Rapid	17	2.5	14.71	-300	1196.3	896.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1105	1200	1052.4	1200
2025-09-01	1105	1200	1052.4	1200
2025-08-01	1165.5	1200	1142.6	1200
2025-07-01	1165.1	1200	1142.1	1200
2025-06-01	1169.2	1200	1148.7	1200
2025-05-01	1169.2	1200	1148.7	1200
2025-04-01	1169.2	1200	1148.7	1200
2025-03-01	1169.2	1200	1148.7	1200
2025-02-01	1168.8	1200	1148	1200
2025-01-01	1152	1200	1120	1200
2024-12-01	1152	1200	1120	1200
2024-11-01	1152	1200	1120	1200
2024-10-01	1152	1200	1120	1200
2024-09-01	1152	1200	1120	1200
2024-08-01	1152	1200	1120	1200
2024-07-01	1152	1200	1120	1200
2024-06-01	1152	1200	1120	1200
2024-08-01	1152	1200	1120	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	Ekurhuleni North Schools Teams 2025 (U13 Girls)	2025-08-16	2025-08-16	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis
2	Kempton Park Team Clusters LS 2025 (U13)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	5	4	0	Yes	Analysis
3	Kemptonpark School Cluster 2025 (U11 Girls)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U13 Girls)	2025-08-16	2025-08-16	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis
2	Kempton Park Team Clusters LS 2025 (U13)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	5	4	0	Yes	Analysis
3	Kemptonpark School Cluster 2025 (U11 Girls)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis
4	Kempton Park Cluster Teams League 2024 (U9A)	2024-04-13	2024-04-13	Rapid	Ekurhuleni (GE)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Rapid	result 1	date 2025-08-16	rnd 3	type Rapid	result 1
		Opponent Da Silva, Z (Zachelle)				Opponent Da Silva, Z (Zachelle)
2	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 2	type Rapid	result 1	date 2025-06-07	rnd 2	type Rapid	result 1
		Opponent Maponyane, O (Omphemetse)				Opponent Maponyane, O (Omphemetse)
3	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 2	type Rapid	result 0.5	date 2024-04-13	rnd 2	type Rapid	result 0.5
		Opponent Boucher, A (Abigail)				Opponent Boucher, A (Abigail)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Rapid	result 1	date 2025-08-16	rnd 3	type Rapid	result 1
		Opponent Da Silva, Z (Zachelle)				Opponent Da Silva, Z (Zachelle)
2	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 2	type Rapid	result 1	date 2025-06-07	rnd 2	type Rapid	result 1
		Opponent Maponyane, O (Omphemetse)				Opponent Maponyane, O (Omphemetse)
3	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 2	type Rapid	result 0.5	date 2024-04-13	rnd 2	type Rapid	result 0.5
		Opponent Boucher, A (Abigail)				Opponent Boucher, A (Abigail)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Rapid	result 1	date 2025-08-16	rnd 3	type Rapid	result 1
		Opponent Da Silva, Z (Zachelle)				Opponent Da Silva, Z (Zachelle)
2	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 2	type Rapid	result 1	date 2025-06-07	rnd 2	type Rapid	result 1
		Opponent Maponyane, O (Omphemetse)				Opponent Maponyane, O (Omphemetse)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Rapid	result 1	date 2025-08-16	rnd 3	type Rapid	result 1
		Opponent Da Silva, Z (Zachelle)				Opponent Da Silva, Z (Zachelle)
2	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 2	type Rapid	result 1	date 2025-06-07	rnd 2	type Rapid	result 1
		Opponent Maponyane, O (Omphemetse)				Opponent Maponyane, O (Omphemetse)

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	Da Silva ,Z (Zachelle)	2	1	0	0	0	0	2	1	0	0	0	0
1	Da Silva ,Z (Zachelle)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
2	Musindo ,M (Michaela)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Musindo ,M (Michaela)	1	1200	775	0	0	0	1	1200	775	0	0	0
3	Kloppers ,H (Hayley)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Kloppers ,H (Hayley)	1	1211.9	786.9	0	0	0	1	1183.3	786.9	0	0	0
4	Serra ,D (Dino)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Serra ,D (Dino)	1	1199.7	774.7	0	0	0	1	1199.5	774.7	0	0	0
5	Muthambi ,D (Dzithendo)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Muthambi ,D (Dzithendo)	1	1200	775	0	0	0	1	1200	775	0	0	0
6	Pretorius ,J (Judith)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Pretorius ,J (Judith)	1	1191.7	766.7	0	0	0	1	1254.5	766.7	0	0	0
7	Kitching ,J (James)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Kitching ,J (James)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Tsibolane ,E (Eana)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Tsibolane ,E (Eana)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Abbott ,B (Bianca)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Abbott ,B (Bianca)	1	1182.4	757.4	0	0	0	1	1200	757.4	0	0	0
10	Pelser ,F (Frederik)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Pelser ,F (Frederik)	1	1177.9	752.9	0	0	0	1	1160	752.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Mwembe, R (Rachel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms