Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koorsen, M (Marnus)

Chess SA id

108086460

FIDE id

Date of birth

2008-04-10 (U18)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-03-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1098.5	1090.3	534.4	534.4
Raw rating	1098.5	1090.3	534.4	534.4
Weighted rating	1098.5	1090.3	534.4	534.4
Weighted performance	320.6	318.2	0	0
Floor	598.5	590.3	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	191.6	193.9	428	428
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1098.5 2024-02-01	1090.3 2024-02-01	534.4 2024-02-01	534.4 2024-02-01
Highest weighted rating	1098.5 2024-11-01	1090.3 2024-11-01	534.4 2024-11-01	534.4 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1098.5	1090.3	534.4	534.4
Analysis
Rating	1098.5	1090.3	534.4	534.4
Raw rating	1098.5	1090.3	534.4	534.4
Weighted rating	1098.5	1090.3	534.4
Weighted performance	320.6	318.2	0
K-factor	40	40	40	40
Floor	598.5	590.3	500	500
Max/Min rating change allowed	191.6	193.9	428	428
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	1098.5	1090.3	534.4	534.4
New weighted rating	1098.5	1090.3	534.4	534.4
New weighted performance	320.2	317.8	0	0
Temp new rating	1098.5	1090.3	534.4	534.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1098.5	1090.3	534.4	534.4
New K-factor	40	40	40	40
New floor	598.5	590.3	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	123	123

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	93	40.5	43.55	-54.8	1040.6	985.8
Standard	93	40.5	43.55	-54.8	1040.6	985.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1098.5	1090.3	534.4	534.4
2025-09-01	1098.5	1090.3	534.4	534.4
2025-08-01	1098.5	1090.3	534.4	534.4
2025-07-01	1098.5	1090.3	534.4	534.4
2025-06-01	1098.5	1090.3	534.4	534.4
2025-05-01	1098.5	1090.3	534.4	534.4
2025-04-01	1098.5	1090.3	534.4	534.4
2025-03-01	1098.5	1090.3	534.4	534.4
2025-02-01	1098.5	1090.3	534.4	534.4
2025-01-01	1098.5	1090.3	534.4	534.4
2024-12-01	1098.5	1090.3	534.4	534.4
2024-11-01	1098.5	1090.3	534.4	534.4
2024-10-01	1098.5	1090.3	534.4	534.4
2024-09-01	1098.5	1090.3	534.4	534.4
2024-08-01	1098.5	1090.3	534.4	534.4
2024-07-01	1098.5	1090.3	534.4	534.4
2024-06-01	1098.5	1090.3	534.4	534.4
2024-08-01	1098.5	1090.3	534.4	534.4
2024-04-01	1098.5	1090.3	534.4	534.4
2024-03-01	1098.5	1090.3	534.4	534.4
2024-02-01	1098.5	1090.3	534.4	534.4
2024-01-01	1098.5	1090.3	534.4	534.4
2023-12-01	1098.5	1090.3	534.4	534.4
2023-11-01	1098.5	1090.3	534.4	534.4

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	Die Wilge 2020 (U14)	2020-03-14	2020-03-14	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
2	Wesvalia 2020 (C)	2020-02-15	2020-02-15	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
3	Matlosana Test 2019 (C)	2019-12-07	2019-12-07	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
4	Doringkruin 2019 (U12)	2019-09-07	2019-09-07	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
5	Boys + Girls Tournament 2019 (U12)	2019-08-17	2019-08-17	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
6	President 2019 (B)	2019-07-13	2019-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
7	Doringkruin 2019 (U12)	2019-06-08	2019-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
8	Volkies 2019 (C)	2019-05-11	2019-05-11	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
9	Strathvaal 2019 (U12)	2019-04-13	2019-03-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
10	2019 Hervormde Kerk (U12)	2019-03-09	2019-03-09	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
11	Wesvalia 2019 (C)	2019-02-16	2019-02-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
12	Volkskool 2019 (U12)	2019-02-02	2019-02-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	1	Yes	Analysis
13	Strathvaal 2018 (D)	2018-11-03	2018-11-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
14	Boys and Girls 2018 (U12 Boys)	2018-08-25	2018-08-25	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
15	Driefontein Proewe 2018 (O12 Seuns)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
16	President 16 Junie 2018 (U12)	2018-06-16	2018-06-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
17	Volkies 2018 (U12)	2018-05-12	2018-05-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
18	Hervormde Kerk 2018 (U12)	2018-04-21	2018-04-21	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
19	Wesvalia 2018 (U12)	2018-02-17	2018-02-17	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Doringkruin 2019				Tournament Matlosana Test 2019
		date 2019-09-07	rnd 4	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Mdaka, T (Thembelhile)				Opponent Zanazo, K (Kopano)
2	3	Tournament Volkies 2019				Tournament Volkies 2019
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Steenkamp, C (Christopher)				Opponent Mfingwana, N (Nasiphi)
3	3	Tournament Wesvalia 2019				Tournament Wesvalia 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 1
		Opponent Buys, T (Tiaan)				Opponent Havenga, S (Shaylee)

#	Games	Start				End
1	3	Tournament Doringkruin 2019				Tournament Matlosana Test 2019
		date 2019-09-07	rnd 4	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Mdaka, T (Thembelhile)				Opponent Zanazo, K (Kopano)
2	3	Tournament Volkies 2019				Tournament Volkies 2019
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Steenkamp, C (Christopher)				Opponent Mfingwana, N (Nasiphi)
3	3	Tournament Wesvalia 2019				Tournament Wesvalia 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 1
		Opponent Buys, T (Tiaan)				Opponent Havenga, S (Shaylee)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Doringkruin 2019				Tournament Matlosana Test 2019
		date 2019-09-07	rnd 4	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Mdaka, T (Thembelhile)				Opponent Zanazo, K (Kopano)
2	3	Tournament Volkies 2019				Tournament Volkies 2019
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Steenkamp, C (Christopher)				Opponent Mfingwana, N (Nasiphi)
3	3	Tournament Wesvalia 2019				Tournament Wesvalia 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 1
		Opponent Buys, T (Tiaan)				Opponent Havenga, S (Shaylee)

#	Games	Start				End
1	3	Tournament Doringkruin 2019				Tournament Matlosana Test 2019
		date 2019-09-07	rnd 4	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Mdaka, T (Thembelhile)				Opponent Zanazo, K (Kopano)
2	3	Tournament Volkies 2019				Tournament Volkies 2019
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Steenkamp, C (Christopher)				Opponent Mfingwana, N (Nasiphi)
3	3	Tournament Wesvalia 2019				Tournament Wesvalia 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 1
		Opponent Buys, T (Tiaan)				Opponent Havenga, S (Shaylee)

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	Walters ,DA (Declan Ashwin)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Walters ,DA (Declan Ashwin)	3	1136.8	711.8	3	1132.2	711.8	0	0	0	0	0	0
2	Molusi ,K (Katlego)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Molusi ,K (Katlego)	3	1033	608	3	1037	608	0	0	0	0	0	0
3	Meyer ,J (Jared)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Meyer ,J (Jared)	3	1129.6	1271.3	3	1120.8	1271.3	0	0	0	0	0	0
4	Fourie ,Q (Quewen)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Fourie ,Q (Quewen)	3	1088.8	663.8	3	1084.9	663.8	0	0	0	0	0	0
5	Muller ,C (Christiaan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Muller ,C (Christiaan)	3	933.4	791.7	3	942.8	791.7	0	0	0	0	0	0
6	Janse Van Rensburg ,N (Nian)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Janse Van Rensburg ,N (Nian)	2	921.2	496.2	2	892.2	496.2	0	0	0	0	0	0
7	Fouche ,H (Heinrich)	2	1	0	2	1	0	0	0	0	0	0	0
7	Fouche ,H (Heinrich)	2	1108.6	1108.6	2	1118	1108.6	0	0	0	0	0	0
8	Jooste ,J (Jayden)	2	1	0	2	1	0	0	0	0	0	0	0
8	Jooste ,J (Jayden)	2	893.1	893.1	2	885.3	893.1	0	0	0	0	0	0
9	Handford ,C (Cassidy)	2	2	425	2	2	425	0	0	0	0	0	0
9	Handford ,C (Cassidy)	2	813.7	1238.7	2	782.8	1238.7	0	0	0	0	0	0
10	Pretorius ,M (Martin)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Pretorius ,M (Martin)	2	956.1	531.1	2	951.8	531.1	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

Koorsen, M (Marnus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms