Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nkosi, B (Bulelani Alwande Asenathi)

Chess SA id

1080146014

FIDE id

Date of birth

2008-06-30 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1262.8	1236.8	1240	1200
Raw rating	1262.8	1236.8	1240	1200
Weighted rating	1255	1236.8	1231.2	1200
Weighted performance	0	0	0	0
Floor	762.8	736.8	740	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.6	157.3	156.6	165.8
Highest rating	1355.6 2023-08-01	1371.2 2023-08-01	1383.5 2024-10-01	1200 2018-10-01
Highest raw rating	1262.8 2024-11-01	1236.8 2024-02-01	1240 2024-11-01	1200 2024-02-01
Highest weighted rating	1250.3 2025-08-01	1236.8 2025-07-01	1226 2025-08-01	1200 2018-10-01
Highest weighted performance	1355.6 2023-08-01	1371.2 2023-08-01	1383.5 2024-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1262.8	1236.8	1240	1200
Analysis
Rating	1262.8	1236.8	1240	1200
Raw rating	1262.8	1236.8	1240	1200
Weighted rating	1255	1236.8	1231.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	762.8	736.8	740	700
Max/Min rating change allowed	151.6	157.3	156.6	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	1262.8	1236.8	1240	1200
New weighted rating	1256.3	1236.8	1232.7	1200
New weighted performance	0	0	0	0
Temp new rating	1262.8	1236.8	1240	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1262.8	1236.8	1240	1200
New K-factor	36	36	36	36
New floor	762.8	736.8	740	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	5	0	5
	5	5	0
	0	0	0
	0	0	0
History	10	5	5

Games since
	Main 5	Standard 0		Rapid 5		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-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	10	7	70	170	1241.4	1411.4
Standard	5	3.5	70	170	1177.3	1347.3
Rapid	5	3.5	70	170	1305.5	1475.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1262.8	1236.8	1240	1200
2025-09-30	1262.8	1236.8	1240	1200
2025-09-01	1262.8	1236.8	1240	1200
2025-08-01	1262.8	1236.8	1240	1200
2025-07-01	1262.8	1236.8	1240	1200
2025-06-01	1262.8	1236.8	1240	1200
2025-05-01	1262.8	1236.8	1240	1200
2025-04-01	1262.8	1236.8	1240	1200
2025-03-01	1262.8	1236.8	1240	1200
2025-02-01	1262.8	1236.8	1240	1200
2025-01-01	1262.8	1236.8	1240	1200
2024-12-01	1262.8	1236.8	1240	1200
2024-11-01	1262.8	1236.8	1240	1200
2024-10-01	1227.2	1236.8	1200	1200
2024-09-01	1227.2	1236.8	1200	1200
2024-08-01	1227.2	1236.8	1200	1200
2024-07-01	1227.2	1236.8	1200	1200
2024-09-01	1227.2	1236.8	1200	1200
2024-05-01	1227.2	1236.8	1200	1200
2024-04-01	1227.2	1236.8	1200	1200
2024-03-01	1227.2	1236.8	1200	1200
2024-02-01	1227.2	1236.8	1200	1200
2024-01-01	1227.2	1236.8	1200	1200
2023-12-01	1227.2	1236.8	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	Gauteng Top Schools 2024 (U17 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
2	2023 Gauteng Top Schools (U15 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2023 Gauteng Top Schools				Tournament Gauteng Top Schools 2024
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-10-05	rnd 2	type Rapid	result 1
		Opponent Visagie, R (Reuben)				Opponent Nyirenda, L (Letlotlo Kumbo)
2	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 4	type Rapid	result 0.5	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Horn, E (Evan)				Opponent Jansen Van Rensburg, N (Nicholas)
3	1	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 1	type Standard	result 0.5	date 2023-08-19	rnd 1	type Standard	result 0.5
		Opponent Robbetze, Z (Zamian)				Opponent Robbetze, Z (Zamian)

#	Games	Start				End
1	3	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 3	type Standard	result 1	date 2023-08-19	rnd 5	type Standard	result 1
		Opponent Visagie, R (Reuben)				Opponent Mgwevu, Z (Zamani)
2	1	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 1	type Standard	result 0.5	date 2023-08-19	rnd 1	type Standard	result 0.5
		Opponent Robbetze, Z (Zamian)				Opponent Robbetze, Z (Zamian)

#	Games	Start				End
1	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 4	type Rapid	result 0.5	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Horn, E (Evan)				Opponent Jansen Van Rensburg, N (Nicholas)
2	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 2	type Rapid	result 1
		Opponent Premkumar, H (Harshal)				Opponent Nyirenda, L (Letlotlo Kumbo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 2023 Gauteng Top Schools				Tournament Gauteng Top Schools 2024
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-10-05	rnd 2	type Rapid	result 1
		Opponent Visagie, R (Reuben)				Opponent Nyirenda, L (Letlotlo Kumbo)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Jansen Van Rensburg, N (Nicholas)				Opponent Jansen Van Rensburg, N (Nicholas)

#	Games	Start				End
1	3	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 3	type Standard	result 1	date 2023-08-19	rnd 5	type Standard	result 1
		Opponent Visagie, R (Reuben)				Opponent Mgwevu, Z (Zamani)

#	Games	Start				End
1	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 2	type Rapid	result 1
		Opponent Premkumar, H (Harshal)				Opponent Nyirenda, L (Letlotlo Kumbo)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Jansen Van Rensburg, N (Nicholas)				Opponent Jansen Van Rensburg, N (Nicholas)

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	Kruger ,D (Drickus)	1	1	425	1	1	425	0	0	0	0	0	0
1	Kruger ,D (Drickus)	1	959.1	1384.1	1	1017	1384.1	0	0	0	0	0	0
2	Mgwevu ,Z (Zamani)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mgwevu ,Z (Zamani)	1	1264	1689	1	1281.2	1689	0	0	0	0	0	0
3	Visagie ,R (Reuben)	1	1	425	1	1	425	0	0	0	0	0	0
3	Visagie ,R (Reuben)	1	1189.6	1614.6	1	1180.1	1614.6	0	0	0	0	0	0
4	Robbetze ,Z (Zamian)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Robbetze ,Z (Zamian)	1	1254.8	1254.8	1	1265.5	1254.8	0	0	0	0	0	0
5	Mbiza ,T (Thembani Tshepo)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mbiza ,T (Thembani Tshepo)	1	1219.1	794.1	1	1220.2	794.1	0	0	0	0	0	0
6	Horn ,E (Evan)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
6	Horn ,E (Evan)	1	1446.3	1446.3	0	0	0	1	1124.4	1446.3	0	0	0
7	Hamilton-Hall ,R (Riley)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Hamilton-Hall ,R (Riley)	1	1371.5	946.5	0	0	0	1	1353.7	946.5	0	0	0
8	Nyirenda ,L (Letlotlo Kumbo)	1	1	425	0	0	0	1	1	425	0	0	0
8	Nyirenda ,L (Letlotlo Kumbo)	1	1194.3	1619.3	0	0	0	1	1200	1619.3	0	0	0
9	Jansen Van Rensburg ,N (Nicholas)	1	1	425	0	0	0	1	1	425	0	0	0
9	Jansen Van Rensburg ,N (Nicholas)	1	1300.2	1725.2	0	0	0	1	1200	1725.2	0	0	0
10	Premkumar ,H (Harshal)	1	1	425	0	0	0	1	1	425	0	0	0
10	Premkumar ,H (Harshal)	1	1215.2	1640.2	0	0	0	1	1180	1640.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Nkosi, B (Bulelani Alwande Asenathi)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms