Chess South Africa Ratings Database

PLAYER PAGE

Personal

Osborne, W (Wentworth)

Chess SA id

1090104403

FIDE id

Date of birth

2009-06-06 (U18)

Gender

Male

Region

Namakwa (NCN)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-03-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1161.5	1158	1200	1200
Raw rating	1161.5	1158	1200	1200
Weighted rating	1161.5	1158	1200	1200
Weighted performance	266.6	266	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.2	176	165.8	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	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	1161.5	1158	1200	1200
Analysis
Rating	1161.5	1158	1200	1200
Raw rating	1161.5	1158	1200	1200
Weighted rating	1161.5	1158	1200
Weighted performance	266.6	266	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	175.2	176	165.8	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	1161.5	1158	1200	1200
New weighted rating	1161.5	1158	1200	1200
New weighted performance	266.2	265.6	0	0
Temp new rating	1161.5	1158	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1161.5	1158	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	28	28

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Namakwa (NCN)
Province	Northern Cape (NC)
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	28	12.5	44.64	-45.5	1175.6	1130.1
Standard	28	12.5	44.64	-45.5	1175.6	1130.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1161.5	1158	1200	1200
2025-09-01	1161.5	1158	1200	1200
2025-08-01	1161.5	1158	1200	1200
2025-07-01	1161.5	1158	1200	1200
2025-06-01	1161.5	1158	1200	1200
2025-05-01	1161.5	1158	1200	1200
2025-04-01	1161.5	1158	1200	1200
2025-03-01	1161.5	1158	1200	1200
2025-02-01	1161.5	1158	1200	1200
2025-01-01	1161.5	1158	1200	1200
2024-12-01	1161.5	1158	1200	1200
2024-11-01	1161.5	1158	1200	1200
2024-10-01	1161.5	1158	1200	1200
2024-09-01	1161.5	1158	1200	1200
2024-08-01	1161.5	1158	1200	1200
2024-07-01	1161.5	1158	1200	1200
2024-06-01	1161.5	1158	1200	1200
2024-08-01	1161.5	1158	1200	1200
2024-04-01	1161.5	1158	1200	1200
2024-03-01	1161.5	1158	1200	1200
2024-02-01	1161.5	1158	1200	1200
2024-01-01	1161.5	1158	1200	1200
2023-12-01	1161.5	1158	1200	1200
2023-11-01	1161.5	1158	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	Namakwa Distrik Proewe 2020 (U11+U13 Boys+Girls)	2020-03-14	2020-03-14	Standard	Namakwa (NCN)	5	5	2.5	Yes	Analysis
2	Namakwa Skaak 2019 (O14)	2019-08-03	2019-08-03	Standard	Namakwa (NCN)	5	4	1.5	Yes	Analysis
3	Namakwa Proewe 2019 (U11 Boys+Girls)	2019-03-02	2019-03-02	Standard	Namakwa (NCN)	5	4	1.5	Yes	Analysis
4	Namakwa Skaak Ope 2019 (O12)	2019-02-16	2019-02-16	Standard	Namakwa (NCN)	5	5	4	Yes	Analysis
5	Northern Cape Closed Chess Championships 2018 (U10 Open)	2018-08-31	2018-09-01	Standard	Frances Baard (NCF)	5	5	2	Yes	Analysis
6	Namakwa Proewe 2018 (O12)	2018-08-04	2018-08-04	Standard	Namakwa (NCN)	5	5	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 4	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Van Wyk, J (Juan)				Opponent Whitlow, K (Kylie)
2	3	Tournament Northern Cape Closed Chess Championships 2018				Tournament Namakwa Skaak Ope 2019
		date 2018-09-01	rnd 5	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Le Grange, P (Pedri)				Opponent Van Wyk, Z (Zairon)
3	2	Tournament Namakwa Distrik Proewe 2020				Tournament Namakwa Distrik Proewe 2020
		date 2020-03-14	rnd 3	type Standard	result 0.5	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Vries, J (Jayden)				Opponent Van Rooi, K (Kaitlin)

#	Games	Start				End
1	4	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 4	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Van Wyk, J (Juan)				Opponent Whitlow, K (Kylie)
2	3	Tournament Northern Cape Closed Chess Championships 2018				Tournament Namakwa Skaak Ope 2019
		date 2018-09-01	rnd 5	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Le Grange, P (Pedri)				Opponent Van Wyk, Z (Zairon)
3	2	Tournament Namakwa Distrik Proewe 2020				Tournament Namakwa Distrik Proewe 2020
		date 2020-03-14	rnd 3	type Standard	result 0.5	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Vries, J (Jayden)				Opponent Van Rooi, K (Kaitlin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Northern Cape Closed Chess Championships 2018				Tournament Namakwa Skaak Ope 2019
		date 2018-09-01	rnd 5	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Le Grange, P (Pedri)				Opponent Van Wyk, Z (Zairon)
2	2	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 4	type Standard	result 1	date 2019-02-16	rnd 5	type Standard	result 1
		Opponent Van Wyk, J (Juan)				Opponent Prinsloo, A (Anje)
3	1	Tournament Namakwa Distrik Proewe 2020				Tournament Namakwa Distrik Proewe 2020
		date 2020-03-14	rnd 4	type Standard	result 1	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Van Rooi, K (Kaitlin)				Opponent Van Rooi, K (Kaitlin)

#	Games	Start				End
1	3	Tournament Northern Cape Closed Chess Championships 2018				Tournament Namakwa Skaak Ope 2019
		date 2018-09-01	rnd 5	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Le Grange, P (Pedri)				Opponent Van Wyk, Z (Zairon)
2	2	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 4	type Standard	result 1	date 2019-02-16	rnd 5	type Standard	result 1
		Opponent Van Wyk, J (Juan)				Opponent Prinsloo, A (Anje)
3	1	Tournament Namakwa Distrik Proewe 2020				Tournament Namakwa Distrik Proewe 2020
		date 2020-03-14	rnd 4	type Standard	result 1	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Van Rooi, K (Kaitlin)				Opponent Van Rooi, K (Kaitlin)

No games found.

#	Games	Start				End

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	Van Wyk ,Z (Zairon)	2	2	425	2	2	425	0	0	0	0	0	0
1	Van Wyk ,Z (Zairon)	2	1105	1530	2	1086.6	1530	0	0	0	0	0	0
2	De Klerk ,J (Jayden)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	De Klerk ,J (Jayden)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
3	Saal ,L (Lylle)	1	1	425	1	1	425	0	0	0	0	0	0
3	Saal ,L (Lylle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Van Rooi ,K (Kaitlin)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Rooi ,K (Kaitlin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Van Kradenburg ,L (Le-Grant)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Kradenburg ,L (Le-Grant)	1	1254.6	829.6	1	1265.4	829.6	0	0	0	0	0	0
6	Botha ,J (Jan-Petrus)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Botha ,J (Jan-Petrus)	1	1098.5	673.5	1	1079.6	673.5	0	0	0	0	0	0
7	Saal ,K (Keshan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Saal ,K (Keshan)	1	1173.1	748.1	1	1168	748.1	0	0	0	0	0	0
8	Van Den Heever ,L (Leonard)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Den Heever ,L (Leonard)	1	1182.1	757.1	1	1178.4	757.1	0	0	0	0	0	0
9	De Bruyn ,B (Bernardt)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	De Bruyn ,B (Bernardt)	1	1120	695	1	1104.8	695	0	0	0	0	0	0
10	Fortuin ,M (Marjo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Fortuin ,M (Marjo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Osborne, W (Wentworth)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms