Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bowkers, M (Marcelle)

Chess SA id

2110130851

FIDE id

Date of birth

2011-01-28 (U16)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1227.4	1231.5	1200	1200
Raw rating	1227.4	1231.5	1200	1200
Weighted rating	1227.4	1231.4	1200	1200
Weighted performance	0	0	0	0
Floor	727.7	731.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	159.5	158.5	165.8	165.8
Highest rating	1275.8 2020-03-01	1276.3 2020-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1227.7 2024-03-01	1231.8 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1227.7 2024-03-01	1231.8 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1275.8 2020-03-01	1276.3 2020-03-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1227.4	1231.5	1200	1200
Analysis
Rating	1227.4	1231.5	1200	1200
Raw rating	1227.4	1231.5	1200	1200
Weighted rating	1227.4	1231.4	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	727.7	731.8	700	700
Max/Min rating change allowed	159.5	158.5	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	1227.4	1231.5	1200	1200
New weighted rating	1227.4	1231.4	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1227.4	1231.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1227.4	1231.5	1200	1200
New K-factor	36	36	36	36
New floor	727.7	731.8	700	700

Item	Main	Standard
	0	0
	5	5
	0	0
	0	0
	0	0
	0	0
History	19	19

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-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	5	1.5	30	-170	1200	1030
Standard	5	1.5	30	-170	1200	1030
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	19	9.5	50	0	1200.7	1200.7
Standard	19	9.5	50	0	1200.7	1200.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1227.4	1231.5	1200	1200
2025-09-01	1227.4	1231.5	1200	1200
2025-08-01	1227.4	1231.5	1200	1200
2025-07-01	1227.4	1231.5	1200	1200
2025-06-01	1227.4	1231.5	1200	1200
2025-05-01	1227.4	1231.5	1200	1200
2025-04-01	1227.3	1231.3	1200	1200
2025-03-01	1225	1228.5	1200	1200
2025-02-01	1227.7	1231.8	1200	1200
2025-01-01	1227.7	1231.8	1200	1200
2024-12-01	1227.7	1231.8	1200	1200
2024-11-01	1227.7	1231.8	1200	1200
2024-10-01	1227.7	1231.8	1200	1200
2024-09-01	1227.7	1231.8	1200	1200
2024-08-01	1227.7	1231.8	1200	1200
2024-07-01	1227.7	1231.8	1200	1200
2024-06-01	1227.7	1231.8	1200	1200
2024-08-01	1227.7	1231.8	1200	1200
2024-04-01	1227.7	1231.8	1200	1200
2024-03-01	1227.7	1231.8	1200	1200
2024-02-01	1227.7	1231.8	1200	1200
2024-01-01	1227.7	1231.8	1200	1200
2023-12-01	1227.7	1231.8	1200	1200
2023-11-01	1227.7	1231.8	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	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	1.5	Yes	Analysis
2	Eden Schools Closed Trials 1 2020 (U9 Girls)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Mossel Bay Trials 2 2020 (U9)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
4	Mossel Bay Trials 1 2020 (U9)	2020-02-01	2020-02-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Mossel Bay Trials 2 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-02-15	rnd 3	type Standard	result 0.5	date 2020-03-07	rnd 2	type Standard	result 1
		Opponent Matthee, D (Deavan)				Opponent Frans, M (Meecha)
2	3	Tournament Mossel Bay Trials 1 2020				Tournament Mossel Bay Trials 1 2020
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-01	rnd 4	type Standard	result 0.5
		Opponent Stembok, A (Ashnique)				Opponent Cupido, N (Navin-Leigh)
3	2	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 4	type Standard	result 0.5	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Gerber, S (Shamiela)				Opponent Fillis, L (Lindokuhle)

#	Games	Start				End
1	5	Tournament Mossel Bay Trials 2 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-02-15	rnd 3	type Standard	result 0.5	date 2020-03-07	rnd 2	type Standard	result 1
		Opponent Matthee, D (Deavan)				Opponent Frans, M (Meecha)
2	3	Tournament Mossel Bay Trials 1 2020				Tournament Mossel Bay Trials 1 2020
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-01	rnd 4	type Standard	result 0.5
		Opponent Stembok, A (Ashnique)				Opponent Cupido, N (Navin-Leigh)
3	2	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 4	type Standard	result 0.5	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Gerber, S (Shamiela)				Opponent Fillis, L (Lindokuhle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Mossel Bay Trials 2 2020				Tournament Mossel Bay Trials 2 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-02-15	rnd 5	type Standard	result 1
		Opponent Sauerman, B (Brendon)				Opponent Simons, W (Waydene)
2	1	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 5	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Fillis, L (Lindokuhle)				Opponent Fillis, L (Lindokuhle)
3	1	Tournament Eden Schools Closed Trials 1 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-03-07	rnd 4	type Standard	result 1	date 2020-03-07	rnd 4	type Standard	result 1
		Opponent Moses, J (Jay-Leigh)				Opponent Moses, J (Jay-Leigh)

#	Games	Start				End
1	2	Tournament Mossel Bay Trials 2 2020				Tournament Mossel Bay Trials 2 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-02-15	rnd 5	type Standard	result 1
		Opponent Sauerman, B (Brendon)				Opponent Simons, W (Waydene)
2	1	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 5	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Fillis, L (Lindokuhle)				Opponent Fillis, L (Lindokuhle)
3	1	Tournament Eden Schools Closed Trials 1 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-03-07	rnd 4	type Standard	result 1	date 2020-03-07	rnd 4	type Standard	result 1
		Opponent Moses, J (Jay-Leigh)				Opponent Moses, J (Jay-Leigh)

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	Coetzee ,M (Marelize)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Coetzee ,M (Marelize)	1	1357.5	932.5	1	1353.6	932.5	0	0	0	0	0	0
2	Simons ,W (Waydene)	1	1	425	1	1	425	0	0	0	0	0	0
2	Simons ,W (Waydene)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Brits ,R (Rogan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Brits ,R (Rogan)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Bester ,L (Lize-Mari)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Bester ,L (Lize-Mari)	1	1090.1	665.1	1	1074	665.1	0	0	0	0	0	0
5	Vanqa ,A (Ahlomle)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Vanqa ,A (Ahlomle)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Prins ,S (Staton Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Prins ,S (Staton Lee)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Frans ,M (Meecha)	1	1	425	1	1	425	0	0	0	0	0	0
7	Frans ,M (Meecha)	1	1234	1659	1	1240	1659	0	0	0	0	0	0
8	Visser ,J (Junior)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Visser ,J (Junior)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
9	Cupido ,N (Navin-Leigh)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Cupido ,N (Navin-Leigh)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
10	Gelderbloem ,Q (Quelin)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Gelderbloem ,Q (Quelin)	1	1217	1217	1	1220	1217	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

Bowkers, M (Marcelle)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms