Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mackenzie, J (Johan)

Chess SA id

1060110183

FIDE id

Date of birth

2006-10-14 (U20)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1213	1200	1221.6	1200
Raw rating	1213	1200	1221.6	1200
Weighted rating	1213	1200	1221.6	1200
Weighted performance	0	0	0	0
Floor	713	700	721.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.8	165.8	160.8	165.8
Highest rating	1284.2 2019-02-01	1200 2018-10-01	1351.8 2019-02-01	1200 2018-10-01
Highest raw rating	1213 2024-02-01	1200 2024-02-01	1221.6 2024-02-01	1200 2024-02-01
Highest weighted rating	1213 2024-02-01	1200 2018-10-01	1221.6 2025-02-01	1200 2018-10-01
Highest weighted performance	1284.2 2019-02-01	1200 2024-02-01	1351.8 2019-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1213	1200	1221.6	1200
Analysis
Rating	1213	1200	1221.6	1200
Raw rating	1213	1200	1221.6	1200
Weighted rating	1213	1200	1221.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	713	700	721.6	700
Max/Min rating change allowed	162.8	165.8	160.8	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	1213	1200	1221.6	1200
New weighted rating	1213	1200	1221.6	1200
New weighted performance	0	0	0	0
Temp new rating	1213	1200	1221.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1213	1200	1221.6	1200
New K-factor	36	36	36	36
New floor	713	700	721.6	700

Item	Main	Rapid
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	3	3

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	3	2	66.67	141.7	1200	1341.7
Standard	0	0	0	0	0	0
Rapid	3	2	66.67	141.7	1200	1341.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1213	1200	1221.6	1200
2025-09-01	1213	1200	1221.6	1200
2025-08-01	1213	1200	1221.6	1200
2025-07-01	1213	1200	1221.6	1200
2025-06-01	1213	1200	1221.6	1200
2025-05-01	1213	1200	1221.6	1200
2025-04-01	1213	1200	1221.6	1200
2025-03-01	1213	1200	1221.6	1200
2025-02-01	1213	1200	1221.6	1200
2025-01-01	1213	1200	1221.6	1200
2024-12-01	1213	1200	1221.6	1200
2024-11-01	1213	1200	1221.6	1200
2024-10-01	1213	1200	1221.6	1200
2024-09-01	1213	1200	1221.6	1200
2024-08-01	1213	1200	1221.6	1200
2024-07-01	1213	1200	1221.6	1200
2024-06-01	1213	1200	1221.6	1200
2024-08-01	1213	1200	1221.6	1200
2024-04-01	1213	1200	1221.6	1200
2024-03-01	1213	1200	1221.6	1200
2024-02-01	1213	1200	1221.6	1200
2024-01-01	1213	1200	1221.6	1200
2023-12-01	1213	1200	1221.6	1200
2023-11-01	1213	1200	1221.6	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	Onder-Weskus Skole Proewe 2019 (O13 Seuns)	2019-02-16	2019-02-23	Rapid	West Coast (WCU)	7	3	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 7	type Rapid	result 0.5
		Opponent Botha, C (Cameron Lee)				Opponent Bester, C (Coenraad)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 7	type Rapid	result 0.5
		Opponent Botha, C (Cameron Lee)				Opponent Bester, C (Coenraad)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Botha, C (Cameron Lee)				Opponent Botha, C (Cameron Lee)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Botha, C (Cameron Lee)				Opponent Botha, C (Cameron Lee)

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	Bester ,C (Coenraad)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
1	Bester ,C (Coenraad)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
2	Botha ,C (Cameron Lee)	1	1	425	0	0	0	1	1	425	0	0	0
2	Botha ,C (Cameron Lee)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
3	Ceaser ,M (Miqyle)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
3	Ceaser ,M (Miqyle)	1	1200	1200	0	0	0	1	1200	1200	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

Mackenzie, J (Johan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms