Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnston, A (Arthur)

Chess SA id

1120326657

FIDE id

Date of birth

2012-09-17 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1205.8	1200	1213.2	1200
Raw rating	1205.8	1200	1213.2	1200
Weighted rating	1201.3	1200	1203	1200
Weighted performance	0	0	0	0
Floor	705.8	700	713.2	700
K-factor	36	40	36	40
Min/Max rating change allowed	164.4	165.8	162.7	165.8
Highest rating	1205.8 2025-09-01	1199 2025-08-27	1213.2 2025-09-01	1199 2025-08-27
Highest raw rating	1205.8 2025-09-01	1199 2025-08-27	1213.2 2025-09-01	1199 2025-08-27
Highest weighted rating	1200.5 2025-09-01	0 2025-08-27	1201.1 2025-09-01	0 2025-08-27
Highest weighted performance	0 2025-08-27	0 2025-08-27	0 2025-08-27	0 2025-08-27

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1205.8	1200	1213.2	1200
Analysis
Rating	1205.8	1200	1213.2	1200
Raw rating	1205.8	1200	1213.2	1200
Weighted rating	1201.3	1200	1203
Weighted performance	0	0	0
K-factor	36	40	36	40
Floor	705.8	700	713.2	700
Max/Min rating change allowed	164.4	165.8	162.7	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	1205.8	1200	1213.2	1200
New weighted rating	1201.7	1200	1204	1200
New weighted performance	0	0	0	0
Temp new rating	1205.8	1200	1213.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1205.8	1200	1213.2	1200
New K-factor	36	36	36	36
New floor	705.8	700	713.2	700

Item	Main	Rapid
	0	0
	6	6
	0	0
	0	0
	0	0
	0	0
History	6	6

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	M
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U14	-1		-1		-1
U14 M	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U14	-1		-1		-1
U14 M	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U14	-1		-1		-1
U14 M	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U14	-1		-1		-1
U14 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	6	3	50	0	1238.6	1238.6
Standard	0	0	0	0	0	0
Rapid	6	3	50	0	1238.6	1238.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	6	3	50	0	1238.6	1238.6
Standard	0	0	0	0	0	0
Rapid	6	3	50	0	1238.6	1238.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1205.8	1200	1213.2	1200
2025-09-30	1205.8	1200	1213.2	1200
2025-09-01	1205.8	1200	1213.2	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
2024-09-01	1200	1200	1200	1200
2024-05-01	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

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	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Mboniswa, L (Lukhanyo)				Opponent Phakathi, I (Inam)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Buthongo, T (Talita)				Opponent Buthongo, T (Talita)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Mboniswa, L (Lukhanyo)				Opponent Phakathi, I (Inam)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Buthongo, T (Talita)				Opponent Buthongo, T (Talita)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Mboniswa, L (Lukhanyo)				Opponent Phakathi, I (Inam)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Buthongo, T (Talita)				Opponent Buthongo, T (Talita)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Mboniswa, L (Lukhanyo)				Opponent Phakathi, I (Inam)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Buthongo, T (Talita)				Opponent Buthongo, T (Talita)

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	Wang ,Z (Zi Ang)	1	0	-425	0	0	0	1	0	-425	0	0	0
1	Wang ,Z (Zi Ang)	1	1219.3	794.3	0	0	0	1	1284.4	794.3	0	0	0
2	Fouche ,B (Ben)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Fouche ,B (Ben)	1	1237.5	812.5	0	0	0	1	1240.1	812.5	0	0	0
3	Mboniswa ,L (Lukhanyo)	1	1	425	0	0	0	1	1	425	0	0	0
3	Mboniswa ,L (Lukhanyo)	1	1224.2	1649.2	0	0	0	1	1239.3	1649.2	0	0	0
4	Phakathi ,I (Inam)	1	1	425	0	0	0	1	1	425	0	0	0
4	Phakathi ,I (Inam)	1	1224.3	1649.3	0	0	0	1	1239	1649.3	0	0	0
5	Geldenhuys ,K (Katja)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Geldenhuys ,K (Katja)	1	1326.6	901.6	0	0	0	1	1281.2	901.6	0	0	0
6	Buthongo ,T (Talita)	1	1	425	0	0	0	1	1	425	0	0	0
6	Buthongo ,T (Talita)	1	1199.8	1624.8	0	0	0	1	1199.7	1624.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Johnston, A (Arthur)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms