Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petzer, W (Wilhelm)

Chess SA id

1140135771

FIDE id

Date of birth

2014-05-15 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1169.6

Item	Main	Standard	Rapid	Blitz
Rating	1181.6	1175.1	1200	1200
Raw rating	1181.6	1175.1	1200	1200
Weighted rating	1177.2	1169.8	1200	1200
Weighted performance	995.5	996.9	0	0
Floor	726.4	730	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.2	171.8	165.8	165.8
Highest rating	1302 2021-10-01	1302.5 2021-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1226.4 2024-02-01	1230 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1226.4 2024-03-01	1230 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1302 2021-10-01	1302.5 2021-10-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1181.6	1175.1	1200	1200
Analysis
Rating	1181.6	1175.1	1200	1200
Raw rating	1181.6	1175.1	1200	1200
Weighted rating	1177.2	1169.8	1200
Weighted performance	995.5	996.9	0
K-factor	36	36	36	36
Floor	726.4	730	700	700
Max/Min rating change allowed	170.2	171.8	165.8	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	1181.6	1175.1	1200	1200
New weighted rating	1177.2	1169.8	1200	1200
New weighted performance	989	990.4	0	0
Temp new rating	1181.6	1175.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1181.6	1175.1	1200	1200
New K-factor	36	36	36	36
New floor	726.4	730	700	700

Item	Main	Standard
	0	0
	14	14
	14	14
	5	5
	0	0
	5	5
History	38	38

Games since
	Main 28	Standard 28		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	14	5.5	39.29	-91.1	1227.9	1136.9
Standard	14	5.5	39.29	-91.1	1227.9	1136.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	16.5	43.42	-55.9	1212.7	1156.8
Standard	38	16.5	43.42	-55.9	1212.7	1156.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1181.6	1175.1	1200	1200
2025-09-30	1181.6	1175.1	1200	1200
2025-09-01	1181.6	1175.1	1200	1200
2025-08-01	1181.6	1175.1	1200	1200
2025-07-01	1181.6	1175.1	1200	1200
2025-06-01	1181.6	1175.1	1200	1200
2025-05-01	1181.6	1175.1	1200	1200
2025-04-01	1181.6	1175.1	1200	1200
2025-03-01	1181	1174.8	1200	1200
2025-02-01	1183.6	1177.7	1200	1200
2025-01-01	1170.5	1162	1200	1200
2024-12-01	1170.5	1162	1200	1200
2024-11-01	1155.6	1143.3	1200	1200
2024-10-01	1155.6	1143.3	1200	1200
2024-09-01	1155.6	1143.3	1200	1200
2024-08-01	1155.6	1143.3	1200	1200
2024-07-01	1155.6	1143.3	1200	1200
2024-09-01	1155.6	1143.3	1200	1200
2024-05-01	1155.6	1143.3	1200	1200
2024-04-01	1213.6	1212.4	1200	1200
2024-03-01	1226.4	1230	1200	1200
2024-02-01	1226.4	1230	1200	1200
2024-01-01	1226.4	1230	1200	1200
2023-12-01	1226.4	1230	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	2025 KSNG Open (D)	2025-02-22	2025-02-22	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
2	2025 Piet Robbertse Fide Rated Open Chess Tournament (D)	2025-02-01	2025-02-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
3	2025 Tshwane Chess OPEN Registration Tournament (C)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 KSNG Open (D)	2025-02-22	2025-02-22	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
2	2025 Piet Robbertse Fide Rated Open Chess Tournament (D)	2025-02-01	2025-02-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
3	2025 Tshwane Chess OPEN Registration Tournament (C)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
4	Lardies Ope 2024 (C)	2024-10-26	2024-10-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2024 Milos Ristic Open Chess Tournament (B)	2024-04-27	2024-04-27	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
6	2024 Wynie Robbertse Chess Tournament (D2)	2024-03-02	2024-03-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	Laerskool Constantiapark Open Chess Tournament 2023 (U10)	2023-02-18	2023-02-18	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	2021 Lardies Ope (F)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Lardies Ope 2024				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2024-10-26	rnd 4	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Stander, C (Christiaan)				Opponent De Klerk, D (Daniel)
2	3	Tournament 2021 Lardies Ope				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2021-10-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Mulamattathil, R (Raynah)
3	2	Tournament 2024 Wynie Robbertse Chess Tournament				Tournament 2024 Wynie Robbertse Chess Tournament
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Mamphweli, T (Tshedza)				Opponent Erwee, HP (Hermanus Philipus)

#	Games	Start				End
1	4	Tournament Lardies Ope 2024				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2024-10-26	rnd 4	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Stander, C (Christiaan)				Opponent De Klerk, D (Daniel)
2	3	Tournament 2021 Lardies Ope				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2021-10-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Mulamattathil, R (Raynah)
3	2	Tournament 2024 Wynie Robbertse Chess Tournament				Tournament 2024 Wynie Robbertse Chess Tournament
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Mamphweli, T (Tshedza)				Opponent Erwee, HP (Hermanus Philipus)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2021 Lardies Ope				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2021-10-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Mulamattathil, R (Raynah)
2	2	Tournament Lardies Ope 2024				Tournament Lardies Ope 2024
		date 2024-10-26	rnd 4	type Standard	result 1	date 2024-10-26	rnd 5	type Standard	result 1
		Opponent Stander, C (Christiaan)				Opponent Fireyi, D (David Buhlebenkosi)
3	2	Tournament 2024 Wynie Robbertse Chess Tournament				Tournament 2024 Wynie Robbertse Chess Tournament
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Mamphweli, T (Tshedza)				Opponent Erwee, HP (Hermanus Philipus)

#	Games	Start				End
1	3	Tournament 2021 Lardies Ope				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2021-10-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Mulamattathil, R (Raynah)
2	2	Tournament Lardies Ope 2024				Tournament Lardies Ope 2024
		date 2024-10-26	rnd 4	type Standard	result 1	date 2024-10-26	rnd 5	type Standard	result 1
		Opponent Stander, C (Christiaan)				Opponent Fireyi, D (David Buhlebenkosi)
3	2	Tournament 2024 Wynie Robbertse Chess Tournament				Tournament 2024 Wynie Robbertse Chess Tournament
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Mamphweli, T (Tshedza)				Opponent Erwee, HP (Hermanus Philipus)

No games found.

#	Games	Start				End

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 Der Merwe ,A (Aiden Joshua)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Der Merwe ,A (Aiden Joshua)	2	1276.9	851.9	2	1283.8	851.9	0	0	0	0	0	0
2	Botha ,D (Dante)	1	1	425	1	1	425	0	0	0	0	0	0
2	Botha ,D (Dante)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Dlamini ,N (Nkosenhle)	1	1	425	1	1	425	0	0	0	0	0	0
3	Dlamini ,N (Nkosenhle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Packirisamy ,V (Veeasha)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Packirisamy ,V (Veeasha)	1	1030.6	605.6	1	1064.8	605.6	0	0	0	0	0	0
5	Coetzee ,CF (Christiaan Frederik)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Coetzee ,CF (Christiaan Frederik)	1	1182.8	757.8	1	1180	757.8	0	0	0	0	0	0
6	Fourie ,P (Pieter)	1	1	425	1	1	425	0	0	0	0	0	0
6	Fourie ,P (Pieter)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Mokalapa ,J (Junior)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mokalapa ,J (Junior)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Van Der Berg ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Der Berg ,L (Luan)	1	1188.7	763.7	1	1186.8	763.7	0	0	0	0	0	0
9	Breytenbach ,E (Ewan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Breytenbach ,E (Ewan)	1	1237.5	1662.5	1	1246	1662.5	0	0	0	0	0	0
10	Olivier ,F (Frederik)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Olivier ,F (Frederik)	1	1244.4	819.4	1	1239.2	819.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Petzer, W (Wilhelm)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms