Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonas, OJ (Olebogeng)

Chess SA id

199054844

FIDE id

Date of birth

1999-09-27 (Adult)

Gender

Male

Region

Xhariep (FXT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-12-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1272.6	1275.8	1233	1233
Raw rating	1272.6	1275.8	1233	1233
Weighted rating	1272.6	1275.8	1233	1233
Weighted performance	167.9	167.6	0	0
Floor	772.6	775.8	733	733
K-factor	36	36	36	36
Min/Max rating change allowed	149.5	148.8	158.2	158.2
Highest rating	1293.9 2018-03-01	1295.8 2018-03-01	1233 2019-02-01	1233 2019-02-01
Highest raw rating	1272.6 2024-02-01	1275.8 2024-02-01	1233 2024-02-01	1233 2024-02-01
Highest weighted rating	1272.6 2025-02-01	1275.8 2024-02-01	1233 2019-02-01	1233 2019-02-01
Highest weighted performance	1293.9 2018-03-01	1295.8 2018-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1272.6	1275.8	1233	1233
Analysis
Rating	1272.6	1275.8	1233	1233
Raw rating	1272.6	1275.8	1233	1233
Weighted rating	1272.6	1275.8	1233
Weighted performance	167.9	167.6	0
K-factor	36	36	36	36
Floor	772.6	775.8	733	733
Max/Min rating change allowed	149.5	148.8	158.2	158.2
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	1272.6	1275.8	1233	1233
New weighted rating	1272.6	1275.8	1233	1233
New weighted performance	167.5	167.1	0	0
Temp new rating	1272.6	1275.8	1233	1233
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1272.6	1275.8	1233	1233
New K-factor	36	36	36	36
New floor	772.6	775.8	733	733

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	65	65

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Xhariep (FXT)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	34	15.5	45.59	-37.5	1314.3	1276.8
Standard	34	15.5	45.59	-37.5	1314.3	1276.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1272.6	1275.8	1233	1233
2025-09-01	1272.6	1275.8	1233	1233
2025-08-01	1272.6	1275.8	1233	1233
2025-07-01	1272.6	1275.8	1233	1233
2025-06-01	1272.6	1275.8	1233	1233
2025-05-01	1272.6	1275.8	1233	1233
2025-04-01	1272.6	1275.8	1233	1233
2025-03-01	1272.6	1275.8	1233	1233
2025-02-01	1272.6	1275.8	1233	1233
2025-01-01	1272.6	1275.8	1233	1233
2024-12-01	1272.6	1275.8	1233	1233
2024-11-01	1272.6	1275.8	1233	1233
2024-10-01	1272.6	1275.8	1233	1233
2024-09-01	1272.6	1275.8	1233	1233
2024-08-01	1272.6	1275.8	1233	1233
2024-07-01	1272.6	1275.8	1233	1233
2024-06-01	1272.6	1275.8	1233	1233
2024-08-01	1272.6	1275.8	1233	1233
2024-04-01	1272.6	1275.8	1233	1233
2024-03-01	1272.6	1275.8	1233	1233
2024-02-01	1272.6	1275.8	1233	1233
2024-01-01	1272.6	1275.8	1233	1233
2023-12-01	1272.6	1275.8	1233	1233
2023-11-01	1272.6	1275.8	1233	1233

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	2019 USSA Championships (Open)	2019-12-02	2019-12-06	Standard	Sarah Baartman (ESB)	9	9	4	Yes	Analysis
2	Kimberley Chess Club Open FIDE Tournament 2018	2018-04-06	2018-04-07	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
3	Moja Chess Club Open Tournament 2018 (A)	2018-03-02	2018-03-04	Standard	Frances Baard (NCF)	6	6	4	Yes	Analysis
4	South African Inter Regional Championships 2017	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
5	South African Junior Team Championships 2017 (U20B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Moja Chess Club Open Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-03-03	rnd 4	type Standard	result 1	date 2018-04-06	rnd 1	type Standard	result 1
		Opponent Moroke, G (Gavin)				Opponent Daniels, O (Owethu)
2	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 5	type Standard	result 1
		Opponent Mamorare, O (Olefile)				Opponent Mupazviriwo, RF (Robert F)
3	2	Tournament Kimberley Chess Club Open FIDE Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-04-07	rnd 4	type Standard	result 1	date 2018-04-07	rnd 5	type Standard	result 1
		Opponent Vorster, N (Norman)				Opponent Moller, N (Nicole)

#	Games	Start				End
1	4	Tournament Moja Chess Club Open Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-03-03	rnd 4	type Standard	result 1	date 2018-04-06	rnd 1	type Standard	result 1
		Opponent Moroke, G (Gavin)				Opponent Daniels, O (Owethu)
2	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 5	type Standard	result 1
		Opponent Mamorare, O (Olefile)				Opponent Mupazviriwo, RF (Robert F)
3	2	Tournament Kimberley Chess Club Open FIDE Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-04-07	rnd 4	type Standard	result 1	date 2018-04-07	rnd 5	type Standard	result 1
		Opponent Vorster, N (Norman)				Opponent Moller, N (Nicole)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Moja Chess Club Open Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-03-03	rnd 4	type Standard	result 1	date 2018-04-06	rnd 1	type Standard	result 1
		Opponent Moroke, G (Gavin)				Opponent Daniels, O (Owethu)
2	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 5	type Standard	result 1
		Opponent Mamorare, O (Olefile)				Opponent Mupazviriwo, RF (Robert F)
3	2	Tournament Kimberley Chess Club Open FIDE Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-04-07	rnd 4	type Standard	result 1	date 2018-04-07	rnd 5	type Standard	result 1
		Opponent Vorster, N (Norman)				Opponent Moller, N (Nicole)

#	Games	Start				End
1	4	Tournament Moja Chess Club Open Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-03-03	rnd 4	type Standard	result 1	date 2018-04-06	rnd 1	type Standard	result 1
		Opponent Moroke, G (Gavin)				Opponent Daniels, O (Owethu)
2	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 5	type Standard	result 1
		Opponent Mamorare, O (Olefile)				Opponent Mupazviriwo, RF (Robert F)
3	2	Tournament Kimberley Chess Club Open FIDE Tournament 2018				Tournament Kimberley Chess Club Open FIDE Tournament 2018
		date 2018-04-07	rnd 4	type Standard	result 1	date 2018-04-07	rnd 5	type Standard	result 1
		Opponent Vorster, N (Norman)				Opponent Moller, N (Nicole)

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	Mnisi ,T (Trevor)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Mnisi ,T (Trevor)	1	1217	792	1	1217	792	0	0	0	0	0	0
2	Vorster ,N (Norman)	1	1	425	1	1	425	0	0	0	0	0	0
2	Vorster ,N (Norman)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Moller ,N (Nicole)	1	1	425	1	1	425	0	0	0	0	0	0
3	Moller ,N (Nicole)	1	1166.9	1591.9	1	1163.4	1591.9	0	0	0	0	0	0
4	Nzima ,N (Nicolas)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Nzima ,N (Nicolas)	1	1380.1	955.1	1	1396.3	955.1	0	0	0	0	0	0
5	Van Greuning ,AR (Alex Roets)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Greuning ,AR (Alex Roets)	1	1562.6	1137.6	1	1562.6	1137.6	0	0	0	0	0	0
6	Ndabambi ,ME (Mpo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Ndabambi ,ME (Mpo)	1	1537	1962	1	1539	1962	0	0	0	0	0	0
7	Mamorare ,O (Olefile)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mamorare ,O (Olefile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Phakathi ,M (Lunga)	1	1	425	1	1	425	0	0	0	0	0	0
8	Phakathi ,M (Lunga)	1	1068.7	1493.7	1	954.4	1493.7	0	0	0	0	0	0
9	Salem ,A (Abdarahim)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Salem ,A (Abdarahim)	1	1808.9	1383.9	1	1784.8	1383.9	0	0	0	0	0	0
10	Oosthuizen ,MJ (Michal Jacobus)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Oosthuizen ,MJ (Michal Jacobus)	1	1510.3	1085.3	1	1510.3	1085.3	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

Jonas, OJ (Olebogeng)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms