Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nkosi, B (Bokamoso)

Chess SA id

1140322173

FIDE id

Date of birth

2014-02-06 (U12)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-17

Personal details last changed

1900-01-01

Junior GPX Games

14.5

Junior GPX Points

1158.9

Item	Main	Standard	Rapid	Blitz
Rating	1239.3	1225.5	1225.2	1200
Raw rating	1239.3	1225.5	1225.2	1200
Weighted rating	1204.7	1204	1202	1200
Weighted performance	0	0	0	0
Floor	739.3	725.5	725.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	156.8	159.9	160	165.8
Highest rating	1239.3 2025-09-30	1225.5 2025-09-01	1225.2 2025-09-30	1200 2025-07-01
Highest raw rating	1239.3 2025-09-30	1225.5 2025-09-01	1225.2 2025-09-30	1200 2025-07-01
Highest weighted rating	1204.7 2025-09-30	1202 2025-09-01	1202 2025-09-30	1200 2025-07-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1239.3	1225.5	1225.2	1200
Analysis
Rating	1239.3	1225.5	1225.2	1200
Raw rating	1239.3	1225.5	1225.2	1200
Weighted rating	1204.7	1204	1202
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	739.3	725.5	725.2	700
Max/Min rating change allowed	156.8	159.9	160	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	1239.3	1225.5	1225.2	1200
New weighted rating	1207.7	1205.8	1203.9	1200
New weighted performance	0	0	0	0
Temp new rating	1239.3	1225.5	1225.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1239.3	1225.5	1225.2	1200
New K-factor	36	36	36	36
New floor	739.3	725.5	725.2	700

Item	Main	Standard	Rapid
	0	0	0
	19	10	9
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	19	10	9

Games since
	Main 19	Standard 10		Rapid 9		Blitz 0
Gender	Male
Age group	U12
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	19	10.5	55.26	44.7	1226.7	1271.5
Standard	10	5.5	55	42.5	1205.7	1248.2
Rapid	9	5	55.56	47.2	1250.2	1297.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	19	10.5	55.26	44.7	1226.7	1271.5
Standard	10	5.5	55	42.5	1205.7	1248.2
Rapid	9	5	55.56	47.2	1250.2	1297.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1239.3	1225.5	1225.2	1200
2025-09-01	1220.7	1225.5	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1199.8	1199.8	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	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

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Soweto Chess Festival 2025	2025-09-27	2025-09-27	Rapid	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Soweto Chess Festival 2025	2025-09-27	2025-09-27	Rapid	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
2	Mkhelele Schools League 2025 (U12)	2025-09-10	2025-09-17	Rapid	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	Mkhelele Chess Academy Wednesday League 2025 (U15)	2025-08-13	2025-08-27	Rapid	Sedibeng (GSV)	5	4	2	Yes	Analysis
4	GDE (D8) Sedibeng West Schools - Teams 2025 (U13)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
5	GDE (D8) Sedibeng West Schools Individuals 2025 (U11 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Soweto Chess Festival 2025	2025-09-27	2025-09-27	Rapid	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
2	Mkhelele Schools League 2025 (U12)	2025-09-10	2025-09-17	Rapid	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	Mkhelele Chess Academy Wednesday League 2025 (U15)	2025-08-13	2025-08-27	Rapid	Sedibeng (GSV)	5	4	2	Yes	Analysis
4	GDE (D8) Sedibeng West Schools - Teams 2025 (U13)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
5	GDE (D8) Sedibeng West Schools Individuals 2025 (U11 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament Mkhelele Chess Academy Wednesday League 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-20	rnd 2	type Rapid	result 1
		Opponent Manande, Z (Zandile)				Opponent Moremi, L (Lesedi)
2	2	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 3	type Rapid	result 1	date 2025-09-17	rnd 4	type Rapid	result 1
		Opponent Moloi, L (Lerato)				Opponent Ndlovu, T (Thandolwethu)
3	2	Tournament GDE (D8) Sedibeng West Schools Individuals 2025				Tournament GDE (D8) Sedibeng West Schools Individuals 2025
		date 2025-06-07	rnd 4	type Standard	result 0.5	date 2025-06-07	rnd 5	type Standard	result 1
		Opponent Madlabane, N (Naledi)				Opponent Selebalo, G (Gift)

#	Games	Start				End
1	2	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Manande, Z (Zandile)				Opponent Cameron, Z (Zane)
2	2	Tournament GDE (D8) Sedibeng West Schools Individuals 2025				Tournament GDE (D8) Sedibeng West Schools Individuals 2025
		date 2025-06-07	rnd 4	type Standard	result 0.5	date 2025-06-07	rnd 5	type Standard	result 1
		Opponent Madlabane, N (Naledi)				Opponent Selebalo, G (Gift)
3	1	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Tsokodibane, N (Neo)				Opponent Tsokodibane, N (Neo)

#	Games	Start				End
1	2	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 3	type Rapid	result 1	date 2025-09-17	rnd 4	type Rapid	result 1
		Opponent Moloi, L (Lerato)				Opponent Ndlovu, T (Thandolwethu)
2	1	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 1	type Rapid	result 1	date 2025-09-10	rnd 1	type Rapid	result 1
		Opponent Khala, T (Tshepo)				Opponent Khala, T (Tshepo)
3	1	Tournament Mkhelele Chess Academy Wednesday League 2025				Tournament Mkhelele Chess Academy Wednesday League 2025
		date 2025-08-27	rnd 4	type Rapid	result 1	date 2025-08-27	rnd 4	type Rapid	result 1
		Opponent Mzangwa, J (Jabu)				Opponent Mzangwa, J (Jabu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament Mkhelele Chess Academy Wednesday League 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-20	rnd 2	type Rapid	result 1
		Opponent Manande, Z (Zandile)				Opponent Moremi, L (Lesedi)
2	2	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 3	type Rapid	result 1	date 2025-09-17	rnd 4	type Rapid	result 1
		Opponent Moloi, L (Lerato)				Opponent Ndlovu, T (Thandolwethu)
3	1	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 1	type Rapid	result 1	date 2025-09-10	rnd 1	type Rapid	result 1
		Opponent Khala, T (Tshepo)				Opponent Khala, T (Tshepo)

#	Games	Start				End
1	2	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Manande, Z (Zandile)				Opponent Cameron, Z (Zane)
2	1	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Tsokodibane, N (Neo)				Opponent Tsokodibane, N (Neo)
3	1	Tournament GDE (D8) Sedibeng West Schools Individuals 2025				Tournament GDE (D8) Sedibeng West Schools Individuals 2025
		date 2025-06-07	rnd 5	type Standard	result 1	date 2025-06-07	rnd 5	type Standard	result 1
		Opponent Selebalo, G (Gift)				Opponent Selebalo, G (Gift)

#	Games	Start				End
1	2	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 3	type Rapid	result 1	date 2025-09-17	rnd 4	type Rapid	result 1
		Opponent Moloi, L (Lerato)				Opponent Ndlovu, T (Thandolwethu)
2	1	Tournament Mkhelele Schools League 2025				Tournament Mkhelele Schools League 2025
		date 2025-09-10	rnd 1	type Rapid	result 1	date 2025-09-10	rnd 1	type Rapid	result 1
		Opponent Khala, T (Tshepo)				Opponent Khala, T (Tshepo)
3	1	Tournament Mkhelele Chess Academy Wednesday League 2025				Tournament Mkhelele Chess Academy Wednesday League 2025
		date 2025-08-27	rnd 4	type Rapid	result 1	date 2025-08-27	rnd 4	type Rapid	result 1
		Opponent Mzangwa, J (Jabu)				Opponent Mzangwa, J (Jabu)

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	Tsokodibane ,N (Neo)	1	1	425	1	1	425	0	0	0	0	0	0
1	Tsokodibane ,N (Neo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Cameron ,Z (Zane)	1	1	425	1	1	425	0	0	0	0	0	0
2	Cameron ,Z (Zane)	1	1192.7	1617.7	1	1191.4	1617.7	0	0	0	0	0	0
3	Owen ,A (Alexander)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Owen ,A (Alexander)	1	1199.5	774.5	1	1199.4	774.5	0	0	0	0	0	0
4	Madlabane ,N (Naledi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Madlabane ,N (Naledi)	1	1186.4	1186.4	1	1183.6	1186.4	0	0	0	0	0	0
5	Fourie ,J (Jayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Fourie ,J (Jayden)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Mofokeng ,H (Hlohonolofatso)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mofokeng ,H (Hlohonolofatso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Vanvinkenroye ,C (Caylyn)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Vanvinkenroye ,C (Caylyn)	1	1226.3	801.3	1	1230	801.3	0	0	0	0	0	0
8	Selebalo ,G (Gift)	1	1	425	1	1	425	0	0	0	0	0	0
8	Selebalo ,G (Gift)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Bekeer ,N (Njabulo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Bekeer ,N (Njabulo)	1	1251.7	826.7	1	1261.2	826.7	0	0	0	0	0	0
10	Manande ,Z (Zandile)	1	1	425	1	1	425	0	0	0	0	0	0
10	Manande ,Z (Zandile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Nkosi, B (Bokamoso)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms