Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jefthas, Z (Zairon)

Chess SA id

1060097997

FIDE id

Date of birth

2006-09-18 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1167	1145.2	1160.8	1200
Raw rating	1167	1145.2	1160.8	1200
Weighted rating	1167	1145.2	1160.8	1200
Weighted performance	242.7	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.8	179.3	175.3	165.8
Highest rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1167	1145.2	1160.8	1200
Analysis
Rating	1167	1145.2	1160.8	1200
Raw rating	1167	1145.2	1160.8	1200
Weighted rating	1167	1145.2	1160.8
Weighted performance	242.7	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	173.8	179.3	175.3	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	1167	1145.2	1160.8	1200
New weighted rating	1167	1145.2	1160.8	1200
New weighted performance	236.2	0	0	0
Temp new rating	1167	1145.2	1160.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1167	1145.2	1160.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	30	7	23

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
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	30	15	50	0	1118.4	1118.4
Standard	7	3.5	50	0	1127	1127
Rapid	23	11.5	50	0	1115.8	1115.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1167	1145.2	1160.8	1200
2025-09-30	1167	1145.2	1160.8	1200
2025-09-01	1167	1145.2	1160.8	1200
2025-08-01	1167	1145.2	1160.8	1200
2025-07-01	1167	1145.2	1160.8	1200
2025-06-01	1167	1145.2	1160.8	1200
2025-05-01	1167	1145.2	1160.8	1200
2025-04-01	1167	1145.2	1160.8	1200
2025-03-01	1167	1145.2	1160.8	1200
2025-02-01	1167	1145.2	1160.8	1200
2025-01-01	1167	1145.2	1160.8	1200
2024-12-01	1167	1145.2	1160.8	1200
2024-11-01	1167	1145.2	1160.8	1200
2024-10-01	1167	1145.2	1160.8	1200
2024-09-01	1167	1145.2	1160.8	1200
2024-08-01	1167	1145.2	1160.8	1200
2024-07-01	1167	1145.2	1160.8	1200
2024-09-01	1167	1145.2	1160.8	1200
2024-05-01	1167	1145.2	1160.8	1200
2024-04-01	1167	1145.2	1160.8	1200
2024-03-01	1167	1145.2	1160.8	1200
2024-02-01	1167	1145.2	1160.8	1200
2024-01-01	1167	1145.2	1160.8	1200
2023-12-01	1167	1145.2	1160.8	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	Cape Winelands Schools Trials 1 2020 (U15 Boys)	2020-02-15	2020-02-15	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
2	Cape Winelands Schools - Top Schools 2019 (U13 Mix)	2019-07-27	2019-07-27	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Schools Closed 2019 (U13 Boys)	2019-03-16	2019-03-17	Standard	Cape Winelands (WCW)	7	7	3.5	Yes	Analysis
4	CW Schools Open 2019 (U13 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
5	Cape Winelands Schools Trials 1 2018 (U13 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament CW Schools Open 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-02-02	rnd 4	type Rapid	result 1	date 2019-03-16	rnd 2	type Standard	result 1
		Opponent Wooding, C (Connor)				Opponent De Wet, M (Malcolm)
2	3	Tournament Cape Winelands Schools - Top Schools 2019				Tournament Cape Winelands Schools Trials 1 2020
		date 2019-07-27	rnd 4	type Rapid	result 0.5	date 2020-02-15	rnd 1	type Rapid	result 1
		Opponent King, B (Brandon)				Opponent Batoshie, B (Bradley)
3	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Sacco, C (Clayton)				Opponent September, M (Matthew)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 1	type Standard	result 1	date 2019-03-16	rnd 2	type Standard	result 1
		Opponent Kemp, D (Daniel)				Opponent De Wet, M (Malcolm)
2	1	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-17	rnd 6	type Standard	result 0.5	date 2019-03-17	rnd 6	type Standard	result 0.5
		Opponent Africa, G (Gillmore)				Opponent Africa, G (Gillmore)
3	1	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 4	type Standard	result 1	date 2019-03-16	rnd 4	type Standard	result 1
		Opponent Jonkers, D (Deon)				Opponent Jonkers, D (Deon)

#	Games	Start				End
1	5	Tournament CW Schools Open 2019				Tournament Cape Winelands Schools - Top Schools 2019
		date 2019-02-02	rnd 4	type Rapid	result 1	date 2019-07-27	rnd 2	type Rapid	result 1
		Opponent Wooding, C (Connor)				Opponent Kram, R (Rexandro)
2	3	Tournament Cape Winelands Schools - Top Schools 2019				Tournament Cape Winelands Schools Trials 1 2020
		date 2019-07-27	rnd 4	type Rapid	result 0.5	date 2020-02-15	rnd 1	type Rapid	result 1
		Opponent King, B (Brandon)				Opponent Batoshie, B (Bradley)
3	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Sacco, C (Clayton)				Opponent September, M (Matthew)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Sacco, C (Clayton)				Opponent September, M (Matthew)
2	2	Tournament Cape Winelands Schools - Top Schools 2019				Tournament Cape Winelands Schools - Top Schools 2019
		date 2019-07-27	rnd 1	type Rapid	result 1	date 2019-07-27	rnd 2	type Rapid	result 1
		Opponent Meyson, T (Tharwah)				Opponent Kram, R (Rexandro)
3	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 1	type Standard	result 1	date 2019-03-16	rnd 2	type Standard	result 1
		Opponent Kemp, D (Daniel)				Opponent De Wet, M (Malcolm)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 1	type Standard	result 1	date 2019-03-16	rnd 2	type Standard	result 1
		Opponent Kemp, D (Daniel)				Opponent De Wet, M (Malcolm)
2	1	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 4	type Standard	result 1	date 2019-03-16	rnd 4	type Standard	result 1
		Opponent Jonkers, D (Deon)				Opponent Jonkers, D (Deon)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Sacco, C (Clayton)				Opponent September, M (Matthew)
2	2	Tournament Cape Winelands Schools - Top Schools 2019				Tournament Cape Winelands Schools - Top Schools 2019
		date 2019-07-27	rnd 1	type Rapid	result 1	date 2019-07-27	rnd 2	type Rapid	result 1
		Opponent Meyson, T (Tharwah)				Opponent Kram, R (Rexandro)
3	1	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 3	type Rapid	result 1	date 2020-02-15	rnd 3	type Rapid	result 1
		Opponent Kirchner, K (Keenan)				Opponent Kirchner, K (Keenan)

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	Van Tonder ,W (Wium)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Van Tonder ,W (Wium)	1	1169.7	744.7	1	1078.4	744.7	0	0	0	0	0	0
2	De Wet ,M (Malcolm)	1	1	425	1	1	425	0	0	0	0	0	0
2	De Wet ,M (Malcolm)	1	1149	1574	1	881.2	1574	0	0	0	0	0	0
3	Jonkers ,D (Deon)	1	1	425	1	1	425	0	0	0	0	0	0
3	Jonkers ,D (Deon)	1	1039.9	1464.9	1	1000.2	1464.9	0	0	0	0	0	0
4	Jacobs ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jacobs ,J (Joshua)	1	1064	639	1	974	639	0	0	0	0	0	0
5	Sikiti ,Y (Yolani)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Sikiti ,Y (Yolani)	1	1122.8	697.8	1	1037.6	697.8	0	0	0	0	0	0
6	Africa ,G (Gillmore)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Africa ,G (Gillmore)	1	1143.5	1143.5	1	1074	1143.5	0	0	0	0	0	0
7	Jacobs ,CJ (Christiaan)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
7	Jacobs ,CJ (Christiaan)	1	833.2	833.2	0	0	0	1	826	833.2	0	0	0
8	Jaap ,I (Isabella)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Jaap ,I (Isabella)	1	1283.2	1283.2	0	0	0	1	1057.4	1283.2	0	0	0
9	Opperman ,E (Enrico)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Opperman ,E (Enrico)	1	1017.1	592.1	0	0	0	1	1027.6	592.1	0	0	0
10	King ,B (Brandon)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
10	King ,B (Brandon)	1	1066.3	1066.3	0	0	0	1	1093.6	1066.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Jefthas, Z (Zairon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms