Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetser, S (Stefan)

Chess SA id

1010098781

FIDE id

Date of birth

2001-11-14 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1091.8	1070.8	1200	1200
Raw rating	1091.8	1070.8	1200	1200
Weighted rating	1091.8	1070.8	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	193.5	199.3	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 2024-12-01	1200 2024-12-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1091.8	1070.8	1200	1200
Analysis
Rating	1091.8	1070.8	1200	1200
Raw rating	1091.8	1070.8	1200	1200
Weighted rating	1091.8	1070.8	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	193.5	199.3	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	1091.8	1070.8	1200	1200
New weighted rating	1091.8	1070.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1091.8	1070.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1091.8	1070.8	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	9	9

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
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	9	3	33.33	-141.7	983.1	841.4
Standard	9	3	33.33	-141.7	983.1	841.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1091.8	1070.8	1200	1200
2025-09-30	1091.8	1070.8	1200	1200
2025-09-01	1091.8	1070.8	1200	1200
2025-08-01	1091.8	1070.8	1200	1200
2025-07-01	1091.8	1070.8	1200	1200
2025-06-01	1091.8	1070.8	1200	1200
2025-05-01	1091.8	1070.8	1200	1200
2025-04-01	1091.8	1070.8	1200	1200
2025-03-01	1091.8	1070.8	1200	1200
2025-02-01	1091.8	1070.8	1200	1200
2025-01-01	1091.8	1070.8	1200	1200
2024-12-01	1091.8	1070.8	1200	1200
2024-11-01	1091.8	1070.8	1200	1200
2024-10-01	1091.8	1070.8	1200	1200
2024-09-01	1091.8	1070.8	1200	1200
2024-08-01	1091.8	1070.8	1200	1200
2024-07-01	1091.8	1070.8	1200	1200
2024-09-01	1091.8	1070.8	1200	1200
2024-05-01	1091.8	1070.8	1200	1200
2024-04-01	1091.8	1070.8	1200	1200
2024-03-01	1091.8	1070.8	1200	1200
2024-02-01	1091.8	1070.8	1200	1200
2024-01-01	1091.8	1070.8	1200	1200
2023-12-01	1091.8	1070.8	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	Grey College Team Championship 2019 (B)	2019-02-22	2019-02-23	Standard	Mangaung (FMB)	5	4	1	Yes	Analysis
2	Grey College Inter Team Chess Tournament 2018 (B)	2018-02-23	2018-02-24	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 2	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Van Der Walt, H (Heinrich)				Opponent Van Der Walt, H (Heinrich)
2	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Bowles, C (Chane)				Opponent Bowles, C (Chane)
3	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-23	rnd 2	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Verwey, M (Micheal)				Opponent Verwey, M (Micheal)

#	Games	Start				End
1	1	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 2	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Van Der Walt, H (Heinrich)				Opponent Van Der Walt, H (Heinrich)
2	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Bowles, C (Chane)				Opponent Bowles, C (Chane)
3	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-23	rnd 2	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Verwey, M (Micheal)				Opponent Verwey, M (Micheal)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 2	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Van Der Walt, H (Heinrich)				Opponent Van Der Walt, H (Heinrich)
2	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Bowles, C (Chane)				Opponent Bowles, C (Chane)
3	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-23	rnd 2	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Verwey, M (Micheal)				Opponent Verwey, M (Micheal)

#	Games	Start				End
1	1	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 2	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Van Der Walt, H (Heinrich)				Opponent Van Der Walt, H (Heinrich)
2	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Bowles, C (Chane)				Opponent Bowles, C (Chane)
3	1	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-23	rnd 2	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Verwey, M (Micheal)				Opponent Verwey, M (Micheal)

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	Bowles ,C (Chane)	1	1	425	1	1	425	0	0	0	0	0	0
1	Bowles ,C (Chane)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Siyanda ,M (Myeni)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Siyanda ,M (Myeni)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Willemse ,T (Telisha)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Willemse ,T (Telisha)	1	705	280	1	705	280	0	0	0	0	0	0
4	Van Der Walt ,H (Heinrich)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Der Walt ,H (Heinrich)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Compaan ,N (Nicole)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Compaan ,N (Nicole)	1	791	366	1	791	366	0	0	0	0	0	0
6	Brown ,CP (Cherman)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Brown ,CP (Cherman)	1	515.5	90.5	1	517.6	90.5	0	0	0	0	0	0
7	Verwey ,M (Micheal)	1	1	425	1	1	425	0	0	0	0	0	0
7	Verwey ,M (Micheal)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Mhlakaza ,T (Thembane)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mhlakaza ,T (Thembane)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Namane ,O (Orapeleng)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Namane ,O (Orapeleng)	1	836	411	1	830.1	411	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Coetser, 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