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

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1275.8

Item	Main	Standard	Rapid	Blitz
Rating	1253	1267.4	1170.1	1200
Raw rating	1250.6	1267.4	1170.1	1200
Weighted rating	1157.7	1167.7	1169.3	1200
Weighted performance	1253	1249.5	0	0
Floor	750.6	767.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	154.3	150.6	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	1250.6 2025-11-01	1267.4 2025-11-01	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	-2.4	0	0	0
New rating	1250.6	1267.4	1170.1	1200
Analysis
Rating	1253	1267.4	1170.1	1200
Raw rating	1250.6	1267.4	1170.1	1200
Weighted rating	1157.7	1167.7	1169.3
Weighted performance	1253	1249.5	0
K-factor	36	36	36	36
Floor	750.6	767.4	700	700
Max/Min rating change allowed	154.3	150.6	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	1250.6	1267.4	1170.1	1200
New weighted rating	1166.3	1177.2	1169.4	1200
New weighted performance	1245.5	1242.1	0	0
Temp new rating	1250.6	1267.4	1170.1	1200
Temp new rating +/-	-2.4	0	0	0
Final new rating +/-	-2.4	0	0	0
New rating	1250.6	1267.4	1170.1	1200
New K-factor	36	36	36	36
New floor	750.6	767.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	38	38	0
	35	35	0
	24	10	14
	0	0	0
	0	0	0
History	97	83	14

Games since
	Main 80	Standard 73		Rapid 7		Blitz 0
Gender	Female
Age group	U10
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	3697		455		152
Female	820		82		28
U10	331		38		15
U10 Female	68		9		3
Standard
	RSA		Province		Region
Overall	3485		451		155
Female	758		81		30
U10	297		36		13
U10 Female	59		9		3
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	38	20	52.63	22.4	1252.6	1275
Standard	38	20	52.63	22.4	1252.6	1275
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	97	42	43.3	-57	1223.7	1166.7
Standard	83	36	43.37	-56.3	1228.4	1172.1
Rapid	14	6	42.86	-60.7	1195.5	1134.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1250.6	1267.4	1170.1	1200
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
2024-09-01	1098.2	1086.6	1167.9	1200
2024-05-01	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

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	Chess Vikings Trials 2 2025 (D)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
2	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U10 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
4	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	2	Yes	Analysis
5	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
6	2025 Buffalo City Chess Trials 1 (U10)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
7	Vikings Classical March 2025 (U10)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
8	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	Chess Vikings Trials 2 2025 (D)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
2	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U10 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
4	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	2	Yes	Analysis
5	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
6	2025 Buffalo City Chess Trials 1 (U10)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
7	Vikings Classical March 2025 (U10)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
8	Rapid Feb Leg 1 2025 (U8+U10)	2025-02-15	2025-02-15	Rapid	Buffalo City (EBC)	7	0	0	No	Analysis
9	East London Open 2024 (C)	2024-11-05	2024-11-05	Standard	Buffalo City (EBC)	6	5	2	Yes	Analysis
10	5th BC Trails 2024 (U10B)	2024-08-17	2024-08-17	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
11	Hackers Open 2024 (C)	2024-08-10	2024-08-10	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
12	4th BC Trials 2024 (U10B)	2024-06-08	2024-06-08	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
13	3rd BC Trials 2024 (U10B)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
14	UFH Open 2024 (D)	2024-04-13	2024-04-13	Standard	Amathole (EAL)	5	4	1	Yes	Analysis
15	2nd BC Trials 2024 (U10A)	2024-03-09	2024-03-09	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
16	Buffalo City Vikings Chess Trials 2024 (U10A+U10B)	2024-02-03	2024-02-03	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
17	Chess Vikings Exam Rapid 2023 (C)	2023-11-04	2023-11-04	Rapid	Buffalo City (EBC)	7	7	3	Yes	Analysis
18	BC 5th Trials 2023 (U10A)	2023-09-02	2023-09-02	Standard	Buffalo City (EBC)	5	5	1	Yes	Analysis
19	3rd BC Trials 2023 (U10B)	2023-08-12	2023-08-12	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
20	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 EC Closed 2025				Tournament Chess Vikings Trials 2 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-10-18	rnd 1	type Standard	result 1
		Opponent Matyeshana, L (Likuwe)				Opponent Makrune, L (Lulo)

#	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	Mabhera ,A (Annikka Atida)	2	2	425	2	2	425	0	0	0	0	0	0
2	Mabhera ,A (Annikka Atida)	2	1188.1	1613.1	2	1200.1	1613.1	0	0	0	0	0	0
3	Matengambiri ,K (Kaylene)	2	2	425	2	2	425	0	0	0	0	0	0
3	Matengambiri ,K (Kaylene)	2	1173.8	1598.8	2	1171.1	1598.8	0	0	0	0	0	0
4	Bushula ,A (Alunamda)	2	2	425	2	2	425	0	0	0	0	0	0
4	Bushula ,A (Alunamda)	2	1203.6	1628.6	2	1204.2	1628.6	0	0	0	0	0	0
5	Wiseman ,L (Luke)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Wiseman ,L (Luke)	2	1175.2	750.2	2	1108	750.2	0	0	0	0	0	0
6	Jikijela ,A (Ayana)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Jikijela ,A (Ayana)	2	1371.8	946.8	2	1342.1	946.8	0	0	0	0	0	0
7	Mdaka ,V (Vuyanathi)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Mdaka ,V (Vuyanathi)	2	1318.9	893.9	2	1299.8	893.9	0	0	0	0	0	0
8	Wood ,S (Sebastian)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Wood ,S (Sebastian)	2	1245.7	820.7	2	1222.9	820.7	0	0	0	0	0	0
9	Balura ,T (Tumi)	2	1	0	1	0	-425	1	1	425	0	0	0
9	Balura ,T (Tumi)	2	1311.3	1311.3	1	1331.5	886.3	1	1237.6	1736.3	0	0	0
10	Bopi ,H (Hlelokuhle)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Bopi ,H (Hlelokuhle)	2	1175.1	750.1	1	1160	750.1	1	1200	750.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Lee, B (Bicheng)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms