Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petersen, Z (Zackery)

Chess SA id

1120190196

FIDE id

Date of birth

2012-02-21 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-02-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1159.5	1161.4	1182.2	1200
Raw rating	1159.5	1161.4	1182.2	1200
Weighted rating	1156.4	1157.7	1182	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.7	175.2	170.1	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1159.5	1161.4	1182.2	1200
Analysis
Rating	1159.5	1161.4	1182.2	1200
Raw rating	1159.5	1161.4	1182.2	1200
Weighted rating	1156.4	1157.7	1182
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	175.7	175.2	170.1	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	1159.5	1161.4	1182.2	1200
New weighted rating	1156.5	1157.8	1182	1200
New weighted performance	0	0	0	0
Temp new rating	1159.5	1161.4	1182.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1159.5	1161.4	1182.2	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	5	5	0
	5	0	5
	0	0	0
	0	0	0
History	10	5	5

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	10	3	30	-170	1200.4	1030.4
Standard	5	1	20	-255	1201.3	946.3
Rapid	5	2	40	-85	1199.5	1114.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1159.5	1161.4	1182.2	1200
2025-09-30	1159.5	1161.4	1182.2	1200
2025-09-01	1159.5	1161.4	1182.2	1200
2025-08-01	1159.5	1161.4	1182.2	1200
2025-07-01	1159.5	1161.4	1182.2	1200
2025-06-01	1159.5	1161.4	1182.2	1200
2025-05-01	1159.5	1161.4	1182.2	1200
2025-04-01	1159.5	1161.4	1182.2	1200
2025-03-01	1159.5	1161.4	1182.2	1200
2025-02-01	1159.5	1161.4	1182.2	1200
2025-01-01	1148.3	1147.8	1181.6	1200
2024-12-01	1148.3	1147.8	1181.6	1200
2024-11-01	1148.3	1147.8	1181.6	1200
2024-10-01	1148.3	1147.8	1181.6	1200
2024-09-01	1148.3	1147.8	1181.6	1200
2024-08-01	1148.3	1147.8	1181.6	1200
2024-07-01	1148.3	1147.8	1181.6	1200
2024-09-01	1148.3	1147.8	1181.6	1200
2024-05-01	1148.3	1147.8	1181.6	1200
2024-04-01	1148.3	1147.8	1181.6	1200
2024-03-01	1148.3	1147.8	1181.6	1200
2024-02-01	1190.1	1200	1181.6	1200
2024-01-01	1190.1	1200	1181.6	1200
2023-12-01	1190.1	1200	1181.6	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	North District School Trials 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
2	CT Metro District North Top Schools Chess 2023 (U13 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Govender, N (Nikhail)				Opponent Govender, N (Nikhail)
2	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Gomis, L (Levi)				Opponent Gomis, L (Levi)
3	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Petersen, A (Aneeka)				Opponent Petersen, A (Aneeka)

#	Games	Start				End
1	1	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Govender, N (Nikhail)				Opponent Govender, N (Nikhail)

#	Games	Start				End
1	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Gomis, L (Levi)				Opponent Gomis, L (Levi)
2	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Petersen, A (Aneeka)				Opponent Petersen, A (Aneeka)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Govender, N (Nikhail)				Opponent Govender, N (Nikhail)
2	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Gomis, L (Levi)				Opponent Gomis, L (Levi)
3	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Petersen, A (Aneeka)				Opponent Petersen, A (Aneeka)

#	Games	Start				End
1	1	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Govender, N (Nikhail)				Opponent Govender, N (Nikhail)

#	Games	Start				End
1	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Gomis, L (Levi)				Opponent Gomis, L (Levi)
2	1	Tournament CT Metro District North Top Schools Chess 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-29	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Petersen, A (Aneeka)				Opponent Petersen, A (Aneeka)

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	Govender ,N (Nikhail)	1	1	425	1	1	425	0	0	0	0	0	0
1	Govender ,N (Nikhail)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Ebrahim ,Z (Zaidan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Ebrahim ,Z (Zaidan)	1	1224	799	1	1200	799	0	0	0	0	0	0
3	Fumhai ,A (Albert)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Fumhai ,A (Albert)	1	1205.3	780.3	1	1207.6	780.3	0	0	0	0	0	0
4	House ,J (Josh)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	House ,J (Josh)	1	1177.4	752.4	1	1200	752.4	0	0	0	0	0	0
5	Daniel ,M (Marko)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Daniel ,M (Marko)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Dominique ,K (Kabeya Glory)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Dominique ,K (Kabeya Glory)	1	1219.6	794.6	0	0	0	1	1200	794.6	0	0	0
7	Gomis ,L (Levi)	1	1	425	0	0	0	1	1	425	0	0	0
7	Gomis ,L (Levi)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Mtati ,W (Wazo)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Mtati ,W (Wazo)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Petersen ,A (Aneeka)	1	1	425	0	0	0	1	1	425	0	0	0
9	Petersen ,A (Aneeka)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Van Schalkwyk ,C (Cameron)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Van Schalkwyk ,C (Cameron)	1	1178	753	0	0	0	1	1152.8	753	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

Petersen, Z (Zackery)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms