Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzer, S (Stefan)

Chess SA id

1020098489

FIDE id

Date of birth

2002-03-27 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-05-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	946.1	910	1200	1200
Raw rating	946.1	910	1200	1200
Weighted rating	946.1	910	1200	1200
Weighted performance	131.2	128.6	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	238.1	250.6	165.8	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	946.1	910	1200	1200
Analysis
Rating	946.1	910	1200	1200
Raw rating	946.1	910	1200	1200
Weighted rating	946.1	910	1200
Weighted performance	131.2	128.6	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	238.1	250.6	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	946.1	910	1200	1200
New weighted rating	946.1	910	1200	1200
New weighted performance	126.2	123.7	0	0
Temp new rating	946.1	910	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	946.1	910	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	27	27

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
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	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	27	10	37.04	-110.2	919.3	809.1
Standard	27	10	37.04	-110.2	919.3	809.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	946.1	910	1200	1200
2025-09-30	946.1	910	1200	1200
2025-09-01	946.1	910	1200	1200
2025-08-01	946.1	910	1200	1200
2025-07-01	946.1	910	1200	1200
2025-06-01	946.1	910	1200	1200
2025-05-01	946.1	910	1200	1200
2025-04-01	946.1	910	1200	1200
2025-03-01	946.1	910	1200	1200
2025-02-01	946.1	910	1200	1200
2025-01-01	946.1	910	1200	1200
2024-12-01	946.1	910	1200	1200
2024-11-01	946.1	910	1200	1200
2024-10-01	946.1	910	1200	1200
2024-09-01	946.1	910	1200	1200
2024-08-01	946.1	910	1200	1200
2024-07-01	946.1	910	1200	1200
2024-09-01	946.1	910	1200	1200
2024-05-01	946.1	910	1200	1200
2024-04-01	946.1	910	1200	1200
2024-03-01	946.1	910	1200	1200
2024-02-01	946.1	910	1200	1200
2024-01-01	946.1	910	1200	1200
2023-12-01	946.1	910	1200	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	Eden Trials 3 2019 (U18 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	4	1	Yes	Analysis
2	Eden Trials 2 2019 (U18 Open)	2019-04-13	2019-04-13	Standard	Eden (WEG)	5	5	1	Yes	Analysis
3	Eden Trials 1 2019 (U18 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	EDENSC Closed 3 2018 (U18 Open)	2018-05-12	2018-05-12	Standard	Eden (WEG)	5	4	2	Yes	Analysis
5	EDENSC Closed 2 2018 (U18 (Open)	2018-04-14	2018-04-14	Standard	Eden (WEG)	5	5	3	Yes	Analysis
6	EDENSC Closed 1 2018 (U18)	2018-03-10	2018-03-10	Standard	Eden (WEG)	5	5	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Eden Trials 1 2019				Tournament Eden Trials 2 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-04-13	rnd 1	type Standard	result 1
		Opponent Jafta, M (Meghail)				Opponent Nomdie, J (Jodi)
2	2	Tournament EDENSC Closed 3 2018				Tournament EDENSC Closed 3 2018
		date 2018-05-12	rnd 4	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Botha, A (Austen)				Opponent Simons, N (Nazeem)
3	2	Tournament EDENSC Closed 2 2018				Tournament EDENSC Closed 2 2018
		date 2018-04-14	rnd 4	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Manuel, C (Caleb)				Opponent Arries, T (Taryn)

#	Games	Start				End
1	3	Tournament Eden Trials 1 2019				Tournament Eden Trials 2 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-04-13	rnd 1	type Standard	result 1
		Opponent Jafta, M (Meghail)				Opponent Nomdie, J (Jodi)
2	2	Tournament EDENSC Closed 3 2018				Tournament EDENSC Closed 3 2018
		date 2018-05-12	rnd 4	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Botha, A (Austen)				Opponent Simons, N (Nazeem)
3	2	Tournament EDENSC Closed 2 2018				Tournament EDENSC Closed 2 2018
		date 2018-04-14	rnd 4	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Manuel, C (Caleb)				Opponent Arries, T (Taryn)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Eden Trials 1 2019				Tournament Eden Trials 2 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-04-13	rnd 1	type Standard	result 1
		Opponent Jafta, M (Meghail)				Opponent Nomdie, J (Jodi)
2	2	Tournament EDENSC Closed 3 2018				Tournament EDENSC Closed 3 2018
		date 2018-05-12	rnd 4	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Botha, A (Austen)				Opponent Simons, N (Nazeem)
3	2	Tournament EDENSC Closed 2 2018				Tournament EDENSC Closed 2 2018
		date 2018-04-14	rnd 4	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Manuel, C (Caleb)				Opponent Arries, T (Taryn)

#	Games	Start				End
1	3	Tournament Eden Trials 1 2019				Tournament Eden Trials 2 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-04-13	rnd 1	type Standard	result 1
		Opponent Jafta, M (Meghail)				Opponent Nomdie, J (Jodi)
2	2	Tournament EDENSC Closed 3 2018				Tournament EDENSC Closed 3 2018
		date 2018-05-12	rnd 4	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Botha, A (Austen)				Opponent Simons, N (Nazeem)
3	2	Tournament EDENSC Closed 2 2018				Tournament EDENSC Closed 2 2018
		date 2018-04-14	rnd 4	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Manuel, C (Caleb)				Opponent Arries, T (Taryn)

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	Hermanus ,J (Jesse)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Hermanus ,J (Jesse)	2	1077.9	652.9	2	1067.6	652.9	0	0	0	0	0	0
2	Williams ,J (Johnadino)	2	1	0	2	1	0	0	0	0	0	0	0
2	Williams ,J (Johnadino)	2	797.6	797.6	2	801	797.6	0	0	0	0	0	0
3	Arries ,T (Taryn)	2	1	0	2	1	0	0	0	0	0	0	0
3	Arries ,T (Taryn)	2	847.8	847.8	2	860.1	847.8	0	0	0	0	0	0
4	Nomdie ,J (Jodi)	2	1	0	2	1	0	0	0	0	0	0	0
4	Nomdie ,J (Jodi)	2	1075.1	1075.1	2	959.6	1075.1	0	0	0	0	0	0
5	Jafta ,M (Meghail)	1	1	425	1	1	425	0	0	0	0	0	0
5	Jafta ,M (Meghail)	1	1182.2	1607.2	1	1179.1	1607.2	0	0	0	0	0	0
6	Prins ,W (Will-Shuayne)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Prins ,W (Will-Shuayne)	1	1064.2	639.2	1	1043.2	639.2	0	0	0	0	0	0
7	Arendse ,A (Amy-Leigh)	1	1	425	1	1	425	0	0	0	0	0	0
7	Arendse ,A (Amy-Leigh)	1	976	1401	1	923.6	1401	0	0	0	0	0	0
8	Manho ,R (Reineilmar)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Manho ,R (Reineilmar)	1	782	357	1	782	357	0	0	0	0	0	0
9	Manuel ,C (Caleb)	1	1	425	1	1	425	0	0	0	0	0	0
9	Manuel ,C (Caleb)	1	744	1169	1	744	1169	0	0	0	0	0	0
10	Williams ,S (Sergeh)	1	1	425	1	1	425	0	0	0	0	0	0
10	Williams ,S (Sergeh)	1	738	1163	1	738	1163	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

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PLAYER PAGE

Personal

Coetzer, S (Stefan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms