Chess South Africa Ratings Database

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Personal

Sehlangu, OM (Olwakhe Mbonga)

Chess SA id

1110118125

FIDE id

Date of birth

2011-02-11 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

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

Item	Main	Standard	Rapid	Blitz
Rating	1111.6	1028.8	1229.5	1200
Raw rating	1111.6	1028.8	1229.5	1200
Weighted rating	1063.4	1028.8	1206.6	1200
Weighted performance	815.5	0	0	0
Floor	700	700	754.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	188.1	211.6	159	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1254.7 2025-09-30	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1254.7 2025-09-30	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1206.6 2025-11-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1111.6	1028.8	1229.5	1200
Analysis
Rating	1111.6	1028.8	1229.5	1200
Raw rating	1111.6	1028.8	1229.5	1200
Weighted rating	1063.4	1028.8	1206.6
Weighted performance	815.5	0	0
K-factor	36	36	36	36
Floor	700	700	754.7	700
Max/Min rating change allowed	188.1	211.6	159	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	1111.6	1028.8	1229.5	1200
New weighted rating	1067.5	1028.8	1208.6	1200
New weighted performance	809.3	0	0	0
Temp new rating	1111.6	1028.8	1229.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1111.6	1028.8	1229.5	1200
New K-factor	36	36	36	36
New floor	700	700	754.7	700

Item	Main	Standard	Rapid
	0	0	0
	11	0	11
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	29	18	11

Games since
	Main 11	Standard 0		Rapid 11		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	11	6.5	59.09	77.3	1214.9	1292.1
Standard	0	0	0	0	0	0
Rapid	11	6.5	59.09	77.3	1214.9	1292.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	29	10.5	36.21	-117.2	1187.6	1070.4
Standard	18	4	22.22	-236.1	1171	934.9
Rapid	11	6.5	59.09	77.3	1214.9	1292.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1111.6	1028.8	1229.5	1200
2025-09-30	1103.2	1028.8	1254.7	1200
2025-09-01	1055.2	1028.8	1200	1200
2025-08-01	1055.2	1028.8	1200	1200
2025-07-01	1055.2	1028.8	1200	1200
2025-06-01	1055.2	1028.8	1200	1200
2025-05-01	1055.2	1028.8	1200	1200
2025-04-01	1055.2	1028.8	1200	1200
2025-03-01	1055.2	1028.8	1200	1200
2025-02-01	1055.2	1028.8	1200	1200
2025-01-01	1055.2	1028.8	1200	1200
2024-12-01	1055.2	1028.8	1200	1200
2024-11-01	1055.2	1028.8	1200	1200
2024-10-01	1055.2	1028.8	1200	1200
2024-09-01	1055.2	1028.8	1200	1200
2024-08-01	1055.2	1028.8	1200	1200
2024-07-01	1055.2	1028.8	1200	1200
2024-09-01	1055.2	1028.8	1200	1200
2024-05-01	1055.2	1028.8	1200	1200
2024-04-01	1055.2	1028.8	1200	1200
2024-03-01	1055.2	1028.8	1200	1200
2024-02-01	1055.2	1028.8	1200	1200
2024-01-01	1055.2	1028.8	1200	1200
2023-12-01	1055.2	1028.8	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	SACSSA Nationals 2025 (U15 Boys)	2025-10-18	2025-10-18	Rapid	Ekurhuleni (GE)	6	6	2.5	Yes	Analysis
2	G7 Regional Chess Tournament 2025 (U15)	2025-09-13	2025-09-13	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SACSSA Nationals 2025 (U15 Boys)	2025-10-18	2025-10-18	Rapid	Ekurhuleni (GE)	6	6	2.5	Yes	Analysis
2	G7 Regional Chess Tournament 2025 (U15)	2025-09-13	2025-09-13	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
3	The King`s Cup League 2020 (C)	2020-03-07	2020-03-07	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
4	The King`s Cup League 2019 (B)	2019-10-19	2019-10-19	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
5	The King`s Cup League - Stage 2 2019 (B)	2019-09-07	2019-09-07	Standard	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis
6	2019 Gauteng School League Finals (U9 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 3	type Rapid	result 1
		Opponent Chinake, A (Anenyashe)				Opponent Tabane, K (Kimani)
2	2	Tournament G7 Regional Chess Tournament 2025				Tournament SACSSA Nationals 2025
		date 2025-09-13	rnd 5	type Rapid	result 1	date 2025-10-18	rnd 1	type Rapid	result 1
		Opponent Mthembu, B (Bonginkosi)				Opponent Tabane, K (Kimani)
3	2	Tournament 2019 Gauteng School League Finals				Tournament 2019 Gauteng School League Finals
		date 2019-08-23	rnd 3	type Standard	result 1	date 2019-08-23	rnd 4	type Standard	result 1
		Opponent Pearson, M (Milano)				Opponent Enslin, K (Keyleigh)

#	Games	Start				End
1	2	Tournament 2019 Gauteng School League Finals				Tournament 2019 Gauteng School League Finals
		date 2019-08-23	rnd 3	type Standard	result 1	date 2019-08-23	rnd 4	type Standard	result 1
		Opponent Pearson, M (Milano)				Opponent Enslin, K (Keyleigh)
2	1	Tournament The King`s Cup League 2019				Tournament The King`s Cup League 2019
		date 2019-10-19	rnd 4	type Standard	result 0.5	date 2019-10-19	rnd 4	type Standard	result 0.5
		Opponent Sedingwe, O (Onalerona)				Opponent Sedingwe, O (Onalerona)
3	1	Tournament The King`s Cup League 2019				Tournament The King`s Cup League 2019
		date 2019-10-19	rnd 2	type Standard	result 1	date 2019-10-19	rnd 2	type Standard	result 1
		Opponent Macala, L (Lunam)				Opponent Macala, L (Lunam)

#	Games	Start				End
1	3	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 3	type Rapid	result 1
		Opponent Chinake, A (Anenyashe)				Opponent Tabane, K (Kimani)
2	1	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 5	type Rapid	result 1	date 2025-09-13	rnd 5	type Rapid	result 1
		Opponent Mthembu, B (Bonginkosi)				Opponent Mthembu, B (Bonginkosi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 3	type Rapid	result 1
		Opponent Chinake, A (Anenyashe)				Opponent Tabane, K (Kimani)
2	2	Tournament 2019 Gauteng School League Finals				Tournament 2019 Gauteng School League Finals
		date 2019-08-23	rnd 3	type Standard	result 1	date 2019-08-23	rnd 4	type Standard	result 1
		Opponent Pearson, M (Milano)				Opponent Enslin, K (Keyleigh)
3	1	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 5	type Rapid	result 1	date 2025-09-13	rnd 5	type Rapid	result 1
		Opponent Mthembu, B (Bonginkosi)				Opponent Mthembu, B (Bonginkosi)

#	Games	Start				End
1	2	Tournament 2019 Gauteng School League Finals				Tournament 2019 Gauteng School League Finals
		date 2019-08-23	rnd 3	type Standard	result 1	date 2019-08-23	rnd 4	type Standard	result 1
		Opponent Pearson, M (Milano)				Opponent Enslin, K (Keyleigh)
2	1	Tournament The King`s Cup League 2019				Tournament The King`s Cup League 2019
		date 2019-10-19	rnd 2	type Standard	result 1	date 2019-10-19	rnd 2	type Standard	result 1
		Opponent Macala, L (Lunam)				Opponent Macala, L (Lunam)

#	Games	Start				End
1	3	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 3	type Rapid	result 1
		Opponent Chinake, A (Anenyashe)				Opponent Tabane, K (Kimani)
2	1	Tournament G7 Regional Chess Tournament 2025				Tournament G7 Regional Chess Tournament 2025
		date 2025-09-13	rnd 5	type Rapid	result 1	date 2025-09-13	rnd 5	type Rapid	result 1
		Opponent Mthembu, B (Bonginkosi)				Opponent Mthembu, B (Bonginkosi)

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	Macala ,L (Lunam)	2	1	0	2	1	0	0	0	0	0	0	0
1	Macala ,L (Lunam)	2	1123.8	1123.8	2	1112.2	1123.8	0	0	0	0	0	0
2	Tabane ,K (Kimani)	2	2	425	0	0	0	2	2	425	0	0	0
2	Tabane ,K (Kimani)	2	1095.2	1520.2	0	0	0	2	1198.7	1520.2	0	0	0
3	Pearson ,M (Milano)	1	1	425	1	1	425	0	0	0	0	0	0
3	Pearson ,M (Milano)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Mungunda ,U (Unotjari)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mungunda ,U (Unotjari)	1	1171.6	746.6	1	1172	746.6	0	0	0	0	0	0
5	Teen ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Teen ,J (Jordan)	1	532.5	107.5	1	539.2	107.5	0	0	0	0	0	0
6	Still ,J (Joss)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Still ,J (Joss)	1	1215.3	790.3	1	1217.6	790.3	0	0	0	0	0	0
7	Ukachukwi ,D (Danial)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ukachukwi ,D (Danial)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Bennie ,T (Thomas)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Bennie ,T (Thomas)	1	1325.3	900.3	1	1317.4	900.3	0	0	0	0	0	0
9	Mphahlele ,L (Leago)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mphahlele ,L (Leago)	1	1195.7	770.7	1	1190.4	770.7	0	0	0	0	0	0
10	Mohlabane ,AA (Atlehang Alwande)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mohlabane ,AA (Atlehang Alwande)	1	1188.4	763.4	1	1188	763.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Sehlangu, OM (Olwakhe Mbonga)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms