Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzer, PWJ (Pieter Wilhelm)

Chess SA id

165005322

FIDE id

Date of birth

1965-09-21 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

2025-05-09

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	2072	2080.8	2069.4	2074.4
Raw rating	2046.3	2067	2053.5	2064.8
Weighted rating	2072	2080.8	2069.4	2074.4
Weighted performance	0	0	0	0
Floor	1594	1594	1594	1594
K-factor	20	20	20	20
Min/Max rating change allowed	49.7	48.2	49.1	48.4
Highest rating	2094 2024-02-01	2094 2024-02-01	2094 2024-02-01	2094 2024-02-01
Highest raw rating	2094 2024-02-01	2094 2024-02-01	2094 2024-02-01	2094 2024-02-01
Highest weighted rating	2066.5 2025-09-01	2074 2025-09-01	2053.5 2025-08-01	2057.5 2025-08-01
Highest weighted performance	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	2.7	4	3.4	4.1
New rating	2074.8	2084.8	2072.8	2078.5
Analysis
Rating	2072	2080.8	2069.4	2074.4
Raw rating	2046.3	2067	2053.5	2064.8
Weighted rating	2072	2080.8	2069.4
Weighted performance	0	0	0
K-factor	20	20	20	20
Floor	1594	1594	1594	1594
Max/Min rating change allowed	49.7	48.2	49.1	48.4
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	2046.3	2067	2053.5	2064.8
New weighted rating	2074.8	2084.8	2072.8	2078.5
New weighted performance	0	0	0	0
Temp new rating	2074.8	2084.8	2072.8	2078.5
Temp new rating +/-	2.7	4	3.4	4.1
Final new rating +/-	2.7	4	3.4	4.1
New rating	2074.8	2084.8	2072.8	2078.5
New K-factor	20	20	20	20
New floor	1594	1594	1594	1594

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	20	5	7	8
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	20	5	7	8

Games since
	Main 20	Standard 5		Rapid 7		Blitz 8
Gender	Male
Age group	Adult
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	20	14.5	72.5	191.2	1569.3	1760.5
Standard	5	3.5	70	170	1569.9	1739.9
Rapid	7	4.5	64.29	121.4	1616.7	1738.1
Blitz	8	6.5	81.25	265.6	1527.4	1793
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	20	14.5	72.5	191.2	1569.3	1760.5
Standard	5	3.5	70	170	1569.9	1739.9
Rapid	7	4.5	64.29	121.4	1616.7	1738.1
Blitz	8	6.5	81.25	265.6	1527.4	1793

Date	Main	Standard	Rapid	Blitz
2025-09-30	2046.3	2067	2053.5	2064.8
2025-09-01	2046.3	2067	2053.5	2064.8
2025-08-01	2067.6	2094	2053.5	2064.8
2025-07-01	2067.6	2094	2047.6	2064.8
2025-06-01	2067.6	2094	2047.6	2064.8
2025-05-01	2094	2094	2094	2094
2025-04-01	2094	2094	2094	2094
2025-03-01	2094	2094	2094	2094
2025-02-01	2094	2094	2094	2094
2025-01-01	2094	2094	2094	2094
2024-12-01	2094	2094	2094	2094
2024-11-01	2094	2094	2094	2094
2024-10-01	2094	2094	2094	2094
2024-09-01	2094	2094	2094	2094
2024-08-01	2094	2094	2094	2094
2024-07-01	2094	2094	2094	2094
2024-06-01	2094	2094	2094	2094
2024-08-01	2094	2094	2094	2094
2024-04-01	2094	2094	2094	2094
2024-03-01	2094	2094	2094	2094
2024-02-01	2094	2094	2094	2094
2024-01-01	2094	2094	2094	2094
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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 Eden Open & Women's Tournament (Championship)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
2	InterClub Blitz 2 2025	2025-05-08	2025-05-08	Blitz	Eden (WEG)	10	8	6.5	Yes	Analysis
3	Southern Knights Rapid 2025 (Open)	2025-05-03	2025-05-03	Rapid	Eden (WEG)	7	7	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Eden Open & Women's Tournament (Championship)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
2	InterClub Blitz 2 2025	2025-05-08	2025-05-08	Blitz	Eden (WEG)	10	8	6.5	Yes	Analysis
3	Southern Knights Rapid 2025 (Open)	2025-05-03	2025-05-03	Rapid	Eden (WEG)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Southern Knights Rapid 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-08	rnd 7	type Blitz	result 0.5
		Opponent Swart, S (Sune)				Opponent Nortje, P (Pieter)
2	5	Tournament InterClub Blitz 2 2025				Tournament 2025 Eden Open & Women's Tournament
		date 2025-05-08	rnd 9	type Blitz	result 1	date 2025-08-23	rnd 3	type Standard	result 0.5
		Opponent Simon, R (Riley)				Opponent Michaels, A (Antonio)
3	3	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 1	type Rapid	result 1	date 2025-05-03	rnd 3	type Rapid	result 0.5
		Opponent Coleman, A (Anthony)				Opponent Van Heerden, CL (Claude Leon)

#	Games	Start				End
1	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 1	type Standard	result 1	date 2025-08-23	rnd 3	type Standard	result 0.5
		Opponent Cornforth, RM (Rodney)				Opponent Michaels, A (Antonio)
2	1	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 5	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Nortje, P (Pieter)				Opponent Nortje, P (Pieter)

#	Games	Start				End
1	3	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 1	type Rapid	result 1	date 2025-05-03	rnd 3	type Rapid	result 0.5
		Opponent Coleman, A (Anthony)				Opponent Van Heerden, CL (Claude Leon)
2	2	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 7	type Rapid	result 1
		Opponent Swart, S (Sune)				Opponent Scheepers, J (Jonathan)

#	Games	Start				End
1	5	Tournament InterClub Blitz 2 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-08	rnd 1	type Blitz	result 1	date 2025-05-08	rnd 7	type Blitz	result 0.5
		Opponent Kerspuy, G (Gurswin)				Opponent Nortje, P (Pieter)
2	2	Tournament InterClub Blitz 2 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-08	rnd 9	type Blitz	result 1	date 2025-05-08	rnd 10	type Blitz	result 1
		Opponent Simon, R (Riley)				Opponent Simon, R (Riley)

#	Games	Start				End
1	6	Tournament Southern Knights Rapid 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-08	rnd 6	type Blitz	result 1
		Opponent Swart, S (Sune)				Opponent Brewis, S (Sienna)
2	4	Tournament InterClub Blitz 2 2025				Tournament 2025 Eden Open & Women's Tournament
		date 2025-05-08	rnd 9	type Blitz	result 1	date 2025-08-23	rnd 2	type Standard	result 1
		Opponent Simon, R (Riley)				Opponent Botes, R (Renier)
3	2	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 1	type Rapid	result 1	date 2025-05-03	rnd 2	type Rapid	result 1
		Opponent Coleman, A (Anthony)				Opponent Nortje, P (Pieter)

#	Games	Start				End
1	2	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 1	type Standard	result 1	date 2025-08-23	rnd 2	type Standard	result 1
		Opponent Cornforth, RM (Rodney)				Opponent Botes, R (Renier)
2	1	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 5	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Nortje, P (Pieter)				Opponent Nortje, P (Pieter)

#	Games	Start				End
1	2	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 7	type Rapid	result 1
		Opponent Swart, S (Sune)				Opponent Scheepers, J (Jonathan)
2	2	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 1	type Rapid	result 1	date 2025-05-03	rnd 2	type Rapid	result 1
		Opponent Coleman, A (Anthony)				Opponent Nortje, P (Pieter)

#	Games	Start				End
1	4	Tournament InterClub Blitz 2 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-08	rnd 1	type Blitz	result 1	date 2025-05-08	rnd 6	type Blitz	result 1
		Opponent Kerspuy, G (Gurswin)				Opponent Brewis, S (Sienna)
2	2	Tournament InterClub Blitz 2 2025				Tournament InterClub Blitz 2 2025
		date 2025-05-08	rnd 9	type Blitz	result 1	date 2025-05-08	rnd 10	type Blitz	result 1
		Opponent Simon, R (Riley)				Opponent Simon, R (Riley)

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	Nortje ,P (Pieter)	4	2.5	106.2	1	1	425	1	1	425	2	0.5	-212.5
1	Nortje ,P (Pieter)	4	1552.4	1658.7	1	1527.5	1977.4	1	1397.2	1977.4	2	1428.3	1339.9
2	Brewis ,S (Sienna)	2	2	425	0	0	0	0	0	0	2	2	425
2	Brewis ,S (Sienna)	2	1533.8	1958.8	0	0	0	0	0	0	2	1183.6	1958.8
3	Kerspuy ,G (Gurswin)	2	2	425	0	0	0	0	0	0	2	2	425
3	Kerspuy ,G (Gurswin)	2	1316.5	1741.5	0	0	0	0	0	0	2	1211.7	1741.5
4	Simon ,R (Riley)	2	2	425	0	0	0	0	0	0	2	2	425
4	Simon ,R (Riley)	2	1710.2	2135.2	0	0	0	0	0	0	2	1333.4	2135.2
5	Botes ,R (Renier)	1	1	425	1	1	425	0	0	0	0	0	0
5	Botes ,R (Renier)	1	1534.9	1959.9	1	1505.3	1959.9	0	0	0	0	0	0
6	Thoresen ,K (Kyle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Thoresen ,K (Kyle)	1	1569.7	1144.7	1	1592.7	1144.7	0	0	0	0	0	0
7	Cornforth ,RM (Rodney)	1	1	425	1	1	425	0	0	0	0	0	0
7	Cornforth ,RM (Rodney)	1	1410.8	1835.8	1	1365.9	1835.8	0	0	0	0	0	0
8	Michaels ,A (Antonio)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Michaels ,A (Antonio)	1	1771.2	1771.2	1	1739.8	1771.2	0	0	0	0	0	0
9	Swart ,S (Sune)	1	1	425	0	0	0	1	1	425	0	0	0
9	Swart ,S (Sune)	1	1556.2	1981.2	0	0	0	1	1315.6	1981.2	0	0	0
10	Scheepers ,J (Jonathan)	1	1	425	0	0	0	1	1	425	0	0	0
10	Scheepers ,J (Jonathan)	1	1501.6	1926.6	0	0	0	1	1280.7	1926.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Coetzer, PWJ (Pieter Wilhelm)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms