Chess South Africa Ratings Database

PLAYER PAGE

Personal

Roets, B (Bjorn)

Chess SA id

1150325878

FIDE id

Date of birth

2015-05-12 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1268.5	1283.5	1200	1200
Raw rating	1268.5	1283.5	1200	1200
Weighted rating	1210.7	1213.1	1200	1200
Weighted performance	0	0	0	0
Floor	768.5	783.5	700	700
K-factor	36	36	40	40
Min/Max rating change allowed	150.4	147.2	165.8	165.8
Highest rating	1268.5 2025-09-01	1283.5 2025-09-01	1199 2025-08-23	1199 2025-08-23
Highest raw rating	1268.5 2025-09-01	1283.5 2025-09-01	1199 2025-08-23	1199 2025-08-23
Highest weighted rating	1205.5 2025-09-01	1206.7 2025-09-01	0 2025-08-23	0 2025-08-23
Highest weighted performance	0 2025-08-23	0 2025-08-23	0 2025-08-23	0 2025-08-23

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1268.5	1283.5	1200	1200
Analysis
Rating	1268.5	1283.5	1200	1200
Raw rating	1268.5	1283.5	1200	1200
Weighted rating	1210.7	1213.1	1200
Weighted performance	0	0	0
K-factor	36	36	40	40
Floor	768.5	783.5	700	700
Max/Min rating change allowed	150.4	147.2	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	1268.5	1283.5	1200	1200
New weighted rating	1215.8	1219.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1268.5	1283.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1268.5	1283.5	1200	1200
New K-factor	36	36	36	36
New floor	768.5	783.5	700	700

Item	Main	Standard
	0	0
	5	5
	0	0
	0	0
	0	0
	0	0
History	5	5

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	M
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-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	5	4.5	90	340	1218.1	1558.1
Standard	5	4.5	90	340	1218.1	1558.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	5	4.5	90	340	1218.1	1558.1
Standard	5	4.5	90	340	1218.1	1558.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1268.5	1283.5	1200	1200
2025-09-01	1268.5	1283.5	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	2025 Gauteng North School District CLOSED League Finals - D1 (U11)	2025-08-16	2025-08-16	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng North School District CLOSED League Finals - D1 (U11)	2025-08-16	2025-08-16	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Sibanyoni, N (Nomsa)				Opponent Du Plessis, K (Karla)

#	Games	Start				End
1	5	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Sibanyoni, N (Nomsa)				Opponent Du Plessis, K (Karla)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Kiewiet, E (Ethan)				Opponent Du Plessis, K (Karla)
2	1	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Sibanyoni, N (Nomsa)				Opponent Sibanyoni, N (Nomsa)

#	Games	Start				End
1	3	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Kiewiet, E (Ethan)				Opponent Du Plessis, K (Karla)
2	1	Tournament 2025 Gauteng North School District CLOSED League Finals - D1				Tournament 2025 Gauteng North School District CLOSED League Finals - D1
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Sibanyoni, N (Nomsa)				Opponent Sibanyoni, N (Nomsa)

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	Kiewiet ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
1	Kiewiet ,E (Ethan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Sibanyoni ,N (Nomsa)	1	1	425	1	1	425	0	0	0	0	0	0
2	Sibanyoni ,N (Nomsa)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Mampe ,O (Olwethukuhle)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Mampe ,O (Olwethukuhle)	1	1236.4	1236.4	1	1246.6	1236.4	0	0	0	0	0	0
4	Du Plessis ,K (Karla)	1	1	425	1	1	425	0	0	0	0	0	0
4	Du Plessis ,K (Karla)	1	1254.1	1679.1	1	1264.5	1679.1	0	0	0	0	0	0
5	De Klerk ,A (Amelia)	1	1	425	1	1	425	0	0	0	0	0	0
5	De Klerk ,A (Amelia)	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

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PLAYER PAGE

Personal

Roets, B (Bjorn)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms