Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lee, B (Bicheng)

Chess SA id

2160153651

FIDE id

Date of birth

2016-10-10 (U10)

Gender

Female

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1270.2

Item	Main	Standard	Rapid	Blitz
Rating	1232.1	1247.6	1170.1	1200
Raw rating	1232.1	1247.6	1170.1	1200
Weighted rating	1148.9	1157.8	1169.2	1200
Weighted performance	1224.3	1218.6	0	0
Floor	732.1	761.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.4	154.9	173	165.8
Highest rating	1257.7 2023-08-01	1371.4 2023-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1232.1 2025-09-30	1261.3 2025-05-05	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1218.7 2018-10-01	1261.3 2023-09-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1257.7 2023-08-01	1371.4 2023-08-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1232.1	1247.6	1170.1	1200
Analysis
Rating	1232.1	1247.6	1170.1	1200
Raw rating	1232.1	1247.6	1170.1	1200
Weighted rating	1148.9	1157.8	1169.2
Weighted performance	1224.3	1218.6	0
K-factor	36	36	36	36
Floor	732.1	761.3	700	700
Max/Min rating change allowed	158.4	154.9	173	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	1232.1	1247.6	1170.1	1200
New weighted rating	1156.2	1166.1	1169.3	1200
New weighted performance	1223.9	1218.2	0	0
Temp new rating	1232.1	1247.6	1170.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1232.1	1247.6	1170.1	1200
New K-factor	36	36	36	36
New floor	732.1	761.3	700	700

Item	Main	Standard	Rapid
	0	0	0
	33	33	0
	35	35	0
	24	10	14
	0	0	0
	0	0	0
History	92	78	14

Games since
	Main 75	Standard 68		Rapid 7		Blitz 0
Gender	Female
Age group	U10
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	3787		509		162
Female	881		98		34
U10	343		43		16
U10 Female	81		13		7
Standard
	RSA		Province		Region
Overall	3537		497		165
Female	800		97		37
U10	305		40		16
U10 Female	62		12		6
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U10	-1		-1		-1
U10 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U10	-1		-1		-1
U10 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	33	17	51.52	12.9	1253.5	1266.4
Standard	33	17	51.52	12.9	1253.5	1266.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	92	39	42.39	-64.7	1222.4	1157.8
Standard	78	33	42.31	-65.4	1227.3	1161.9
Rapid	14	6	42.86	-60.7	1195.5	1134.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1232.1	1247.6	1170.1	1200
2025-09-01	1171.2	1186.8	1170.1	1200
2025-08-01	1177.8	1203.1	1170.1	1200
2025-07-01	1177.8	1203.1	1170.1	1200
2025-06-01	1177.8	1203.1	1170.1	1200
2025-05-01	1218.2	1261.3	1170.1	1200
2025-04-01	1160.4	1165.1	1170.1	1200
2025-03-01	1121.7	1119.4	1170.1	1200
2025-02-01	1121.6	1119.4	1170.1	1200
2025-01-01	1097	1096.7	1167.9	1200
2024-12-01	1097	1096.7	1167.9	1200
2024-11-01	1097	1096.7	1167.9	1200
2024-10-01	1091.9	1088.4	1167.9	1200
2024-09-01	1091.9	1088.4	1167.9	1200
2024-08-01	1145.4	1146	1167.9	1200
2024-07-01	1145.4	1146	1167.9	1200
2024-06-01	1098.2	1086.6	1167.9	1200
2024-08-01	1062.9	1039.8	1167.9	1200
2024-04-01	1075.4	1051.3	1167.9	1200
2024-03-01	1112.5	1099.2	1167.9	1200
2024-02-01	1171.7	1178	1167.9	1200
2024-01-01	1171.7	1178	1167.9	1200
2023-12-01	1171.7	1178	1167.9	1200
2023-11-01	1171.7	1178	1167.9	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	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	Buffalo City Chess Junior Closed 2025 (U10 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
3	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	2	Yes	Analysis
4	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
5	2025 Buffalo City Chess Trials 1 (U10)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
6	Vikings Classical March 2025 (U10)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
7	Rapid Feb Leg 1 2025 (U8+U10)	2025-02-15	2025-02-15	Rapid	Buffalo City (EBC)	7	0	0	No	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	Buffalo City Chess Junior Closed 2025 (U10 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
3	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	2	Yes	Analysis
4	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
5	2025 Buffalo City Chess Trials 1 (U10)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
6	Vikings Classical March 2025 (U10)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
7	Rapid Feb Leg 1 2025 (U8+U10)	2025-02-15	2025-02-15	Rapid	Buffalo City (EBC)	7	0	0	No	Analysis
8	East London Open 2024 (C)	2024-11-05	2024-11-05	Standard	Buffalo City (EBC)	6	5	2	Yes	Analysis
9	5th BC Trails 2024 (U10B)	2024-08-17	2024-08-17	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
10	Hackers Open 2024 (C)	2024-08-10	2024-08-10	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
11	4th BC Trials 2024 (U10B)	2024-06-08	2024-06-08	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
12	3rd BC Trials 2024 (U10B)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
13	UFH Open 2024 (D)	2024-04-13	2024-04-13	Standard	Amathole (EAL)	5	4	1	Yes	Analysis
14	2nd BC Trials 2024 (U10A)	2024-03-09	2024-03-09	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
15	Buffalo City Vikings Chess Trials 2024 (U10A+U10B)	2024-02-03	2024-02-03	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
16	Chess Vikings Exam Rapid 2023 (C)	2023-11-04	2023-11-04	Rapid	Buffalo City (EBC)	7	7	3	Yes	Analysis
17	BC 5th Trials 2023 (U10A)	2023-09-02	2023-09-02	Standard	Buffalo City (EBC)	5	5	1	Yes	Analysis
18	3rd BC Trials 2023 (U10B)	2023-08-12	2023-08-12	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
19	2nd BC Trials 2023 (U10B)	2023-06-03	2023-06-03	Rapid	Buffalo City (EBC)	7	7	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 4	type Standard	result 1	date 2024-06-08	rnd 4	type Standard	result 0.5
		Opponent Matengambiri, K (Kirsty)				Opponent Lin, Y (Yifan)
2	4	Tournament 3rd BC Trials 2023				Tournament 3rd BC Trials 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 5	type Standard	result 1
		Opponent Matengambiri, K (Kaylene)				Opponent Okorie, G (Goodness)
3	3	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent SINGANZI, M (MELOKUHLE)

#	Games	Start				End
1	6	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 4	type Standard	result 1	date 2024-06-08	rnd 4	type Standard	result 0.5
		Opponent Matengambiri, K (Kirsty)				Opponent Lin, Y (Yifan)
2	4	Tournament 3rd BC Trials 2023				Tournament 3rd BC Trials 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 5	type Standard	result 1
		Opponent Matengambiri, K (Kaylene)				Opponent Okorie, G (Goodness)
3	3	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent SINGANZI, M (MELOKUHLE)

#	Games	Start				End
1	3	Tournament Chess Vikings Exam Rapid 2023				Tournament Chess Vikings Exam Rapid 2023
		date 2023-11-04	rnd 5	type Rapid	result 1	date 2023-11-04	rnd 7	type Rapid	result 0.5
		Opponent Kwatsha, A (Alunamba)				Opponent Mkwinana, S (Sihlangule)
2	2	Tournament 2nd BC Trials 2023				Tournament Chess Vikings Exam Rapid 2023
		date 2023-06-03	rnd 7	type Rapid	result 1	date 2023-11-04	rnd 1	type Rapid	result 1
		Opponent Kwatsha, A (Alunamba)				Opponent Balura, T (Tumi)
3	1	Tournament 2nd BC Trials 2023				Tournament 2nd BC Trials 2023
		date 2023-06-03	rnd 3	type Rapid	result 1	date 2023-06-03	rnd 3	type Rapid	result 1
		Opponent Zhang, N (Nathan)				Opponent Zhang, N (Nathan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 4	type Standard	result 1	date 2024-06-08	rnd 3	type Standard	result 1
		Opponent Matengambiri, K (Kirsty)				Opponent Matengambiri, K (Kaylene)
2	3	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent SINGANZI, M (MELOKUHLE)
3	3	Tournament 2025 Buffalo City Chess Trials 2				Tournament 2025 Buffalo City Chess Trials 2
		date 2025-04-12	rnd 2	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Dayimani, Q (Qhayiya)				Opponent Parker, S (Semeen)

#	Games	Start				End
1	5	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 4	type Standard	result 1	date 2024-06-08	rnd 3	type Standard	result 1
		Opponent Matengambiri, K (Kirsty)				Opponent Matengambiri, K (Kaylene)
2	3	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent SINGANZI, M (MELOKUHLE)
3	3	Tournament 2025 Buffalo City Chess Trials 2				Tournament 2025 Buffalo City Chess Trials 2
		date 2025-04-12	rnd 2	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Dayimani, Q (Qhayiya)				Opponent Parker, S (Semeen)

#	Games	Start				End
1	2	Tournament 2nd BC Trials 2023				Tournament Chess Vikings Exam Rapid 2023
		date 2023-06-03	rnd 7	type Rapid	result 1	date 2023-11-04	rnd 1	type Rapid	result 1
		Opponent Kwatsha, A (Alunamba)				Opponent Balura, T (Tumi)
2	1	Tournament Chess Vikings Exam Rapid 2023				Tournament Chess Vikings Exam Rapid 2023
		date 2023-11-04	rnd 5	type Rapid	result 1	date 2023-11-04	rnd 5	type Rapid	result 1
		Opponent Kwatsha, A (Alunamba)				Opponent Kwatsha, A (Alunamba)
3	1	Tournament 2nd BC Trials 2023				Tournament 2nd BC Trials 2023
		date 2023-06-03	rnd 3	type Rapid	result 1	date 2023-06-03	rnd 3	type Rapid	result 1
		Opponent Zhang, N (Nathan)				Opponent Zhang, N (Nathan)

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	Matyeshana ,L (Likuwe)	5	3	85	5	3	85	0	0	0	0	0	0
1	Matyeshana ,L (Likuwe)	5	1211.2	1296.2	5	1207.9	1296.2	0	0	0	0	0	0
2	Mdaka ,V (Vuyanathi)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Mdaka ,V (Vuyanathi)	2	1318.9	893.9	2	1299.8	893.9	0	0	0	0	0	0
3	Mabhera ,A (Annikka Atida)	2	2	425	2	2	425	0	0	0	0	0	0
3	Mabhera ,A (Annikka Atida)	2	1188.1	1613.1	2	1200.1	1613.1	0	0	0	0	0	0
4	Wood ,S (Sebastian)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Wood ,S (Sebastian)	2	1245.7	820.7	2	1222.9	820.7	0	0	0	0	0	0
5	Matengambiri ,K (Kaylene)	2	2	425	2	2	425	0	0	0	0	0	0
5	Matengambiri ,K (Kaylene)	2	1173.8	1598.8	2	1171.1	1598.8	0	0	0	0	0	0
6	Bushula ,A (Alunamda)	2	2	425	2	2	425	0	0	0	0	0	0
6	Bushula ,A (Alunamda)	2	1203.6	1628.6	2	1204.2	1628.6	0	0	0	0	0	0
7	Jikijela ,A (Ayana)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Jikijela ,A (Ayana)	2	1371.8	946.8	2	1342.1	946.8	0	0	0	0	0	0
8	Wiseman ,L (Luke)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Wiseman ,L (Luke)	2	1175.2	750.2	2	1108	750.2	0	0	0	0	0	0
9	Gonya ,M (Mvuni)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
9	Gonya ,M (Mvuni)	2	1253.9	1041.4	1	1219.4	1253.9	1	1252.6	828.9	0	0	0
10	Balura ,T (Tumi)	2	1	0	1	0	-425	1	1	425	0	0	0
10	Balura ,T (Tumi)	2	1311.3	1311.3	1	1331.5	886.3	1	1237.6	1736.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Lee, B (Bicheng)

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