Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mcosana, O (Oyama)

Chess SA id

2080154672

FIDE id

Date of birth

2008-01-07 (U18)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-04-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1155	1112.1	1229.5	1200
Raw rating	1155	1112.1	1229.5	1200
Weighted rating	1155	1112	1229.5	1200
Weighted performance	766.1	572.6	0	0
Floor	704.5	700	729.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	176.8	187.9	159	165.8
Highest rating	1207.9 2018-08-01	1200 2018-02-01	1273.3 2023-02-01	1200 2018-10-01
Highest raw rating	1204.5 2023-03-01	1200 2018-02-01	1229.5 2024-02-01	1200 2024-02-01
Highest weighted rating	1204.5 2018-02-01	1200 2018-02-01	1229.5 2025-02-01	1200 2018-10-01
Highest weighted performance	1207.9 2018-08-01	1200 2018-02-01	1273.3 2023-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1155	1112.1	1229.5	1200
Analysis
Rating	1155	1112.1	1229.5	1200
Raw rating	1155	1112.1	1229.5	1200
Weighted rating	1155	1112	1229.5
Weighted performance	766.1	572.6	0
K-factor	36	36	36	36
Floor	704.5	700	729.5	700
Max/Min rating change allowed	176.8	187.9	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	1155	1112.1	1229.5	1200
New weighted rating	1155	1112	1229.5	1200
New weighted performance	759.1	565.8	0	0
Temp new rating	1155	1112.1	1229.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1155	1112.1	1229.5	1200
New K-factor	36	36	36	36
New floor	704.5	700	729.5	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	18	8	10
	5	5	0
	0	0	0
History	58	48	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	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	58	28	48.28	-14.7	1181	1166.3
Standard	48	22	45.83	-35.4	1170.6	1135.2
Rapid	10	6	60	85	1230.9	1315.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1155	1112.1	1229.5	1200
2025-09-30	1155	1112.1	1229.5	1200
2025-09-01	1155	1112.1	1229.5	1200
2025-08-01	1155	1112.1	1229.5	1200
2025-07-01	1155	1112.1	1229.5	1200
2025-06-01	1155	1112.1	1229.5	1200
2025-05-01	1155	1112.1	1229.5	1200
2025-04-01	1155	1112.1	1229.5	1200
2025-03-01	1155	1112.1	1229.5	1200
2025-02-01	1155	1112.1	1229.5	1200
2025-01-01	1154.9	1111.9	1229.5	1200
2024-12-01	1154.9	1111.9	1229.5	1200
2024-11-01	1154.9	1111.9	1229.5	1200
2024-10-01	1154.9	1111.9	1229.5	1200
2024-09-01	1154.9	1111.9	1229.5	1200
2024-08-01	1154.9	1111.9	1229.5	1200
2024-07-01	1154.9	1111.9	1229.5	1200
2024-09-01	1154.9	1111.9	1229.5	1200
2024-05-01	1154.9	1111.9	1229.5	1200
2024-04-01	1154.9	1111.9	1229.5	1200
2024-03-01	1154.9	1111.9	1229.5	1200
2024-02-01	1154.9	1111.9	1229.5	1200
2024-01-01	1154.9	1111.9	1229.5	1200
2023-12-01	1154.9	1111.9	1229.5	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	Western Cape HS Individuals 2023 (U15 Girls)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	3	0	Yes	Analysis
2	Overberg High School Closed 2023 (U15 Girls)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
3	Overberg High Schools Trails 2023 (U15)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg Schools Open Tournament 2023 (U16)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
5	Western Cape Top Schools 2022 (U15 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
6	Overberg Closed 2020 (U13 Girls)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
7	2019 Western Cape Club Championship (C)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
8	Western Cape Top Schools 2019 (U11 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	0	Yes	Analysis
9	Overberg Top Schools 2019 (U11)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
10	Overberg First Trial 2019 (U12)	2019-02-23	2019-02-23	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
11	Western Cape Top Schools 2018 (U9+U11 Girls)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
12	Overberg Schools Closed 2018 (U11 Girls)	2018-03-23	2018-03-24	Standard	Overberg (WOS)	6	6	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Overberg Schools Closed 2018				Tournament Western Cape Top Schools 2018
		date 2018-03-24	rnd 5	type Standard	result 1	date 2018-08-25	rnd 3	type Standard	result 1
		Opponent Dees, J (Jody)				Opponent Michaels, B (Bernadine)
2	3	Tournament 2019 Western Cape Club Championship				Tournament 2019 Western Cape Club Championship
		date 2019-10-25	rnd 1	type Standard	result 1	date 2019-10-26	rnd 3	type Standard	result 1
		Opponent Wynne-Roberts, D (Danik)				Opponent Whitebooi, S (Spencer)
3	2	Tournament Overberg High Schools Trails 2023				Tournament Overberg High School Closed 2023
		date 2023-02-24	rnd 5	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Duminy, Z (Zaldine)				Opponent Du Toit, I (Isabella)

#	Games	Start				End
1	5	Tournament Overberg Schools Closed 2018				Tournament Western Cape Top Schools 2018
		date 2018-03-24	rnd 5	type Standard	result 1	date 2018-08-25	rnd 3	type Standard	result 1
		Opponent Dees, J (Jody)				Opponent Michaels, B (Bernadine)
2	3	Tournament 2019 Western Cape Club Championship				Tournament 2019 Western Cape Club Championship
		date 2019-10-25	rnd 1	type Standard	result 1	date 2019-10-26	rnd 3	type Standard	result 1
		Opponent Wynne-Roberts, D (Danik)				Opponent Whitebooi, S (Spencer)
3	2	Tournament Western Cape Top Schools 2022				Tournament Overberg High School Closed 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Mjungu, L (Lubabalo Emmanuel)				Opponent Du Toit, I (Isabella)

#	Games	Start				End
1	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 1	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mnganisa, O (Ongama)
2	1	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 5	type Rapid	result 1
		Opponent Duminy, Z (Zaldine)				Opponent Duminy, Z (Zaldine)
3	1	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Booysen, W (Will-Matthew)				Opponent Booysen, W (Will-Matthew)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Overberg Schools Closed 2018				Tournament Western Cape Top Schools 2018
		date 2018-03-24	rnd 5	type Standard	result 1	date 2018-08-25	rnd 3	type Standard	result 1
		Opponent Dees, J (Jody)				Opponent Michaels, B (Bernadine)
2	3	Tournament 2019 Western Cape Club Championship				Tournament 2019 Western Cape Club Championship
		date 2019-10-25	rnd 1	type Standard	result 1	date 2019-10-26	rnd 3	type Standard	result 1
		Opponent Wynne-Roberts, D (Danik)				Opponent Whitebooi, S (Spencer)
3	2	Tournament Overberg High Schools Trails 2023				Tournament Overberg High School Closed 2023
		date 2023-02-24	rnd 5	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Duminy, Z (Zaldine)				Opponent Du Toit, I (Isabella)

#	Games	Start				End
1	5	Tournament Overberg Schools Closed 2018				Tournament Western Cape Top Schools 2018
		date 2018-03-24	rnd 5	type Standard	result 1	date 2018-08-25	rnd 3	type Standard	result 1
		Opponent Dees, J (Jody)				Opponent Michaels, B (Bernadine)
2	3	Tournament 2019 Western Cape Club Championship				Tournament 2019 Western Cape Club Championship
		date 2019-10-25	rnd 1	type Standard	result 1	date 2019-10-26	rnd 3	type Standard	result 1
		Opponent Wynne-Roberts, D (Danik)				Opponent Whitebooi, S (Spencer)
3	2	Tournament Western Cape Top Schools 2022				Tournament Overberg High School Closed 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Mjungu, L (Lubabalo Emmanuel)				Opponent Du Toit, I (Isabella)

#	Games	Start				End
1	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 1	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mnganisa, O (Ongama)
2	1	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 5	type Rapid	result 1
		Opponent Duminy, Z (Zaldine)				Opponent Duminy, Z (Zaldine)
3	1	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Booysen, W (Will-Matthew)				Opponent Booysen, W (Will-Matthew)

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	Sibeko ,M (Mbalntle)	3	0	-425	2	0	-425	1	0	-425	0	0	0
1	Sibeko ,M (Mbalntle)	3	1191.9	766.9	2	1186.8	766.9	1	558.4	766.9	0	0	0
2	Hlanzela ,M (Milani)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Hlanzela ,M (Milani)	2	1114.2	689.2	2	1114.8	689.2	0	0	0	0	0	0
3	Beveridge ,TG (Talitha Grace)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Beveridge ,TG (Talitha Grace)	2	1354.8	929.8	2	1351.9	929.8	0	0	0	0	0	0
4	Musahwe ,LA (Leeann)	1	1	425	1	1	425	0	0	0	0	0	0
4	Musahwe ,LA (Leeann)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Nel ,D (Danika)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Nel ,D (Danika)	1	1553.7	1128.7	1	1545.3	1128.7	0	0	0	0	0	0
6	Livi ,Z (Zininzi)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Livi ,Z (Zininzi)	1	1371.1	946.1	1	1323.3	946.1	0	0	0	0	0	0
7	Zikithi ,L (Lwandle)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Zikithi ,L (Lwandle)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Dondolo ,A (Ayola)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Dondolo ,A (Ayola)	1	1156.1	731.1	1	1137	731.1	0	0	0	0	0	0
9	Roto ,S (Sintle)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Roto ,S (Sintle)	1	1231.3	806.3	1	1260	806.3	0	0	0	0	0	0
10	Dees ,J (Jody)	1	1	425	1	1	425	0	0	0	0	0	0
10	Dees ,J (Jody)	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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PLAYER PAGE

Personal

Mcosana, O (Oyama)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms