Chess South Africa Ratings Database

PLAYER PAGE

Personal

Voyiatzakis, Z (Zacharia)

Chess SA id

1090135710

FIDE id

Date of birth

2009-03-08 (U18)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1173.1	1150.8	1204.2	1200
Raw rating	1173.1	1150.8	1204.2	1200
Weighted rating	1171.5	1150.8	1200.2	1200
Weighted performance	0	0	0	0
Floor	700	700	739.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.3	177.9	164.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1349.7 2023-04-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1239.6 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1239.6 2024-04-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1349.7 2023-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1173.1	1150.8	1204.2	1200
Analysis
Rating	1173.1	1150.8	1204.2	1200
Raw rating	1173.1	1150.8	1204.2	1200
Weighted rating	1171.5	1150.8	1200.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	739.6	700
Max/Min rating change allowed	172.3	177.9	164.8	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	1173.1	1150.8	1204.2	1200
New weighted rating	1171.4	1150.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1173.1	1150.8	1204.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1173.1	1150.8	1204.2	1200
New K-factor	36	36	36	36
New floor	700	700	739.6	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	0	6
	6	0	6
	0	0	0
	4	4	0
History	16	4	12

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Male
Age group	U18
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	16	7	43.75	-53.1	1177.2	1124
Standard	4	1	25	-212.5	1155.5	943
Rapid	12	6	50	0	1184.4	1184.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1173.1	1150.8	1204.2	1200
2025-09-01	1173.1	1150.8	1204.2	1200
2025-08-01	1173.1	1150.8	1204.2	1200
2025-07-01	1173.1	1150.8	1204.2	1200
2025-06-01	1173.1	1150.8	1204.2	1200
2025-05-01	1173.1	1150.8	1204.2	1200
2025-04-01	1173.1	1150.8	1204.2	1200
2025-03-01	1173.1	1150.8	1204.2	1200
2025-02-01	1172.8	1150.8	1203.7	1200
2025-01-01	1165.2	1150.8	1184.5	1200
2024-12-01	1165.2	1150.8	1184.5	1200
2024-11-01	1165.2	1150.8	1184.5	1200
2024-10-01	1165.2	1150.8	1184.5	1200
2024-09-01	1165.2	1150.8	1184.5	1200
2024-08-01	1165.2	1150.8	1184.5	1200
2024-07-01	1165.2	1150.8	1184.5	1200
2024-06-01	1165.2	1150.8	1184.5	1200
2024-08-01	1165.2	1150.8	1184.5	1200
2024-04-01	1187.3	1150.8	1239.6	1200
2024-03-01	1187.3	1150.8	1239.6	1200
2024-02-01	1187.3	1150.8	1239.6	1200
2024-01-01	1187.3	1150.8	1239.6	1200
2023-12-01	1187.3	1150.8	1239.6	1200
2023-11-01	1187.3	1150.8	1239.6	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	NWU Super 16 2024	2024-04-19	2024-04-19	Rapid	Gert Sibande (MGS)	6	6	2	Yes	Analysis
2	NWU Super 16 2023 (B)	2023-04-21	2023-04-21	Rapid	Gert Sibande (MGS)	7	6	4	Yes	Analysis
3	2021 Lardies Ope (D)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament NWU Super 16 2024				Tournament NWU Super 16 2024
		date 2024-04-19	rnd 4	type Rapid	result 1	date 2024-04-19	rnd 5	type Rapid	result 1
		Opponent Martins, J (Jana)				Opponent Maunatlala, ME (Eugene)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 6	type Rapid	result 1
		Opponent Van Rooyen, B (Beyers)				Opponent Parry, M (Merchae)
3	2	Tournament 2021 Lardies Ope				Tournament NWU Super 16 2023
		date 2021-10-30	rnd 5	type Standard	result 1	date 2023-04-21	rnd 1	type Rapid	result 1
		Opponent Labuschagne, L (Langeline)				Opponent Botha, Z (Zean)

#	Games	Start				End
1	1	Tournament 2021 Lardies Ope				Tournament 2021 Lardies Ope
		date 2021-10-30	rnd 5	type Standard	result 1	date 2021-10-30	rnd 5	type Standard	result 1
		Opponent Labuschagne, L (Langeline)				Opponent Labuschagne, L (Langeline)

#	Games	Start				End
1	2	Tournament NWU Super 16 2024				Tournament NWU Super 16 2024
		date 2024-04-19	rnd 4	type Rapid	result 1	date 2024-04-19	rnd 5	type Rapid	result 1
		Opponent Martins, J (Jana)				Opponent Maunatlala, ME (Eugene)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 6	type Rapid	result 1
		Opponent Van Rooyen, B (Beyers)				Opponent Parry, M (Merchae)
3	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 3	type Rapid	result 1	date 2023-04-21	rnd 3	type Rapid	result 1
		Opponent Modiba, K (Kgothatso)				Opponent Modiba, K (Kgothatso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament NWU Super 16 2024				Tournament NWU Super 16 2024
		date 2024-04-19	rnd 4	type Rapid	result 1	date 2024-04-19	rnd 5	type Rapid	result 1
		Opponent Martins, J (Jana)				Opponent Maunatlala, ME (Eugene)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 6	type Rapid	result 1
		Opponent Van Rooyen, B (Beyers)				Opponent Parry, M (Merchae)
3	2	Tournament 2021 Lardies Ope				Tournament NWU Super 16 2023
		date 2021-10-30	rnd 5	type Standard	result 1	date 2023-04-21	rnd 1	type Rapid	result 1
		Opponent Labuschagne, L (Langeline)				Opponent Botha, Z (Zean)

#	Games	Start				End
1	1	Tournament 2021 Lardies Ope				Tournament 2021 Lardies Ope
		date 2021-10-30	rnd 5	type Standard	result 1	date 2021-10-30	rnd 5	type Standard	result 1
		Opponent Labuschagne, L (Langeline)				Opponent Labuschagne, L (Langeline)

#	Games	Start				End
1	2	Tournament NWU Super 16 2024				Tournament NWU Super 16 2024
		date 2024-04-19	rnd 4	type Rapid	result 1	date 2024-04-19	rnd 5	type Rapid	result 1
		Opponent Martins, J (Jana)				Opponent Maunatlala, ME (Eugene)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 6	type Rapid	result 1
		Opponent Van Rooyen, B (Beyers)				Opponent Parry, M (Merchae)
3	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 3	type Rapid	result 1	date 2023-04-21	rnd 3	type Rapid	result 1
		Opponent Modiba, K (Kgothatso)				Opponent Modiba, K (Kgothatso)

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	Buchner ,E (Emil)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Buchner ,E (Emil)	1	1214	789	1	1208.2	789	0	0	0	0	0	0
2	Labuschagne ,L (Langeline)	1	1	425	1	1	425	0	0	0	0	0	0
2	Labuschagne ,L (Langeline)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Du Preez ,M (Myndert)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Du Preez ,M (Myndert)	1	1130.1	705.1	1	1121.6	705.1	0	0	0	0	0	0
4	De Beer ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	De Beer ,L (Liam)	1	1077.8	652.8	1	1065.4	652.8	0	0	0	0	0	0
5	Pieterse ,JJ (Johan)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Pieterse ,JJ (Johan)	1	1293	868	0	0	0	1	1201.6	868	0	0	0
6	Modiba ,K (Kgothatso)	1	1	425	0	0	0	1	1	425	0	0	0
6	Modiba ,K (Kgothatso)	1	1080.5	1505.5	0	0	0	1	1200	1505.5	0	0	0
7	Parry ,M (Merchae)	1	1	425	0	0	0	1	1	425	0	0	0
7	Parry ,M (Merchae)	1	1197.6	1622.6	0	0	0	1	1193.2	1622.6	0	0	0
8	Van Rooyen ,B (Beyers)	1	1	425	0	0	0	1	1	425	0	0	0
8	Van Rooyen ,B (Beyers)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Botha ,Z (Zean)	1	1	425	0	0	0	1	1	425	0	0	0
9	Botha ,Z (Zean)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Martins ,J (Jana)	1	1	425	0	0	0	1	1	425	0	0	0
10	Martins ,J (Jana)	1	983	1408	0	0	0	1	716.8	1408	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Voyiatzakis, Z (Zacharia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms