Chess South Africa Ratings Database

PLAYER TOURNAMENT ANALYSIS

Tournament analysis

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

No

Last active game

2025-12-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

TOURNAMENT
Tournament ID	20253802
Group ID	20253800
Tournament	USSA Chess Championships 2025 (Open)
Format	Individual Swiss
Rating type	Standard
Start	2025-12-01
End	2025-12-05
Rated	2025-12-24
Host	Johannesburg Metro (GJM)
Total time	120
Time weight	1
Official results	Official results
Tournament games	9
Tournament score	5
Final position	61
Shared position	56
Count for rating	Yes (OK)

Analysis

Type	Rating	Games	Score	%	Dp	Aor	Prat	We	SWe	1	=	0	+F	=F	Bye	=Bye	X
Main	1272.6	9	5	55.6	47.2	1412.1	1459.3	3.35	1.65	5	0	4	0	0	0	0	0
Standard	1275.8	9	5	55.6	47.2	1413.2	1460.4	3.44	1.56	5	0	4	0	0	0	0	0

Opponents

Rnd	Date	Opponent	Title	Reg	Fed	Main	Type	Col	Res	MWe	MSWe	TWe	TSWe
1	2025-12-01	Gounder, R (Rowan)		NBR	RSA	1921.8	1934.1	W	0	0.01	-0.01	0.01	-0.01
2	2025-12-01	Dayimani, N (Nkosinathi)		FMB	RSA	1200	1200	B	1	0.54	0.46	0.55	0.45
3	2025-12-02	Masoka, L (Lwando)		WCT	RSA	1775.6	1828.9	W	0	0.01	-0.01	0.01	-0.01
4	2025-12-02	Mapheto, W (Wiseman)		WCT	RSA	1200	1200	B	0	0.54	-0.54	0.55	-0.55
5	2025-12-03	Mohlakoana, L (Lenohang Victor)		CSA	RSA	1234.7	1234.5	W	1	0.59	0.41	0.59	0.41
6	2025-12-04	Summer, M (Masilo)		GSV	RSA	1348.9	1363.3	B	0	0.37	-0.37	0.36	-0.36
7	2025-12-04	Mfusi, M (Minenhle Njabulo)		GJM	RSA	1230.7	1238	W	1	0.59	0.41	0.59	0.41
8	2025-12-05	Ngwenya, B (Brilliant)		MEN	RSA	1469	1465.2	B	1	0.23	0.77	0.24	0.76
9	2025-12-05	Mathivha, I (Israel)		WCT	RSA	1328	1254.6	W	1	0.48	0.52	0.57	0.43