Chess South Africa Ratings Database

PLAYER PAGE

Personal

Dekker, J (Jean)

Chess SA id

1080160248

FIDE id

Date of birth

2008-09-12 (U18)

Gender

Male

Region

King Cetshwayo (KUR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1273.2	1285.3	1200	1200
Raw rating	1273.2	1285.3	1200	1200
Weighted rating	1273.2	1285.3	1200	1200
Weighted performance	0	0	0	0
Floor	773.2	785.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	149.4	146.8	165.8	165.8
Highest rating	1404.7 2023-09-01	1401.5 2023-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1273.2 2024-03-01	1285.3 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1273.2 2025-08-01	1285.3 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1404.7 2023-09-01	1401.5 2023-09-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1273.2	1285.3	1200	1200
Analysis
Rating	1273.2	1285.3	1200	1200
Raw rating	1273.2	1285.3	1200	1200
Weighted rating	1273.2	1285.3	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	773.2	785.3	700	700
Max/Min rating change allowed	149.4	146.8	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	1273.2	1285.3	1200	1200
New weighted rating	1273.2	1285.3	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1273.2	1285.3	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1273.2	1285.3	1200	1200
New K-factor	36	36	36	36
New floor	773.2	785.3	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	13	13
	0	0
	0	0
History	13	13

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	King Cetshwayo (KUR)
Province	KwaZulu Natal (KZ)
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	13	8.5	65.38	130.8	1244.5	1375.3
Standard	13	8.5	65.38	130.8	1244.5	1375.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1273.2	1285.3	1200	1200
2025-09-30	1273.2	1285.3	1200	1200
2025-09-01	1273.2	1285.3	1200	1200
2025-08-01	1273.2	1285.3	1200	1200
2025-07-01	1273.2	1285.3	1200	1200
2025-06-01	1273.2	1285.3	1200	1200
2025-05-01	1273.2	1285.3	1200	1200
2025-04-01	1273.2	1285.3	1200	1200
2025-03-01	1273.2	1285.3	1200	1200
2025-02-01	1273.2	1285.3	1200	1200
2025-01-01	1273.2	1285.3	1200	1200
2024-12-01	1273.2	1285.3	1200	1200
2024-11-01	1273.2	1285.3	1200	1200
2024-10-01	1273.2	1285.3	1200	1200
2024-09-01	1273.2	1285.3	1200	1200
2024-08-01	1273.2	1285.3	1200	1200
2024-07-01	1273.2	1285.3	1200	1200
2024-09-01	1273.2	1285.3	1200	1200
2024-05-01	1273.2	1285.3	1200	1200
2024-04-01	1273.2	1285.3	1200	1200
2024-03-01	1273.2	1285.3	1200	1200
2024-02-01	1273.2	1285.3	1200	1200
2024-01-01	1273.2	1285.3	1200	1200
2023-12-01	1273.2	1285.3	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	UniZulu Tournament 2023 (U16)	2023-09-23	2023-09-23	Standard	King Cetshwayo (KUR)	6	6	4	Yes	Analysis
2	2023 King Cetshwayo Winter Open (U16)	2023-07-29	2023-07-30	Standard	King Cetshwayo (KUR)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2023 King Cetshwayo Winter Open				Tournament UniZulu Tournament 2023
		date 2023-07-30	rnd 6	type Standard	result 1	date 2023-09-23	rnd 1	type Standard	result 1
		Opponent Kavuala, G (Grace)				Opponent Nyawo, N (Nqubeko)
2	2	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 3	type Standard	result 1	date 2023-09-23	rnd 4	type Standard	result 1
		Opponent Nkosi, M (Mandisa)				Opponent Naidoo, P (Poovan)
3	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 3	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Ngubane, N (Ngcebo)				Opponent Mamba, S (Sanele)

#	Games	Start				End
1	3	Tournament 2023 King Cetshwayo Winter Open				Tournament UniZulu Tournament 2023
		date 2023-07-30	rnd 6	type Standard	result 1	date 2023-09-23	rnd 1	type Standard	result 1
		Opponent Kavuala, G (Grace)				Opponent Nyawo, N (Nqubeko)
2	2	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 3	type Standard	result 1	date 2023-09-23	rnd 4	type Standard	result 1
		Opponent Nkosi, M (Mandisa)				Opponent Naidoo, P (Poovan)
3	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 3	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Ngubane, N (Ngcebo)				Opponent Mamba, S (Sanele)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 3	type Standard	result 1	date 2023-09-23	rnd 4	type Standard	result 1
		Opponent Nkosi, M (Mandisa)				Opponent Naidoo, P (Poovan)
2	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 3	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Ngubane, N (Ngcebo)				Opponent Mamba, S (Sanele)
3	1	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 6	type Standard	result 1	date 2023-09-23	rnd 6	type Standard	result 1
		Opponent Mbeje, A (Aphiwe)				Opponent Mbeje, A (Aphiwe)

#	Games	Start				End
1	2	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 3	type Standard	result 1	date 2023-09-23	rnd 4	type Standard	result 1
		Opponent Nkosi, M (Mandisa)				Opponent Naidoo, P (Poovan)
2	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 3	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Ngubane, N (Ngcebo)				Opponent Mamba, S (Sanele)
3	1	Tournament UniZulu Tournament 2023				Tournament UniZulu Tournament 2023
		date 2023-09-23	rnd 6	type Standard	result 1	date 2023-09-23	rnd 6	type Standard	result 1
		Opponent Mbeje, A (Aphiwe)				Opponent Mbeje, A (Aphiwe)

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	Kavuala ,G (Grace)	1	1	425	1	1	425	0	0	0	0	0	0
1	Kavuala ,G (Grace)	1	1177.3	1602.3	1	1169.4	1602.3	0	0	0	0	0	0
2	Nyawo ,N (Nqubeko)	1	1	425	1	1	425	0	0	0	0	0	0
2	Nyawo ,N (Nqubeko)	1	1300.8	1725.8	1	1313.2	1725.8	0	0	0	0	0	0
3	Mathonsi ,A (Andile)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mathonsi ,A (Andile)	1	1361.2	936.2	1	1368.3	936.2	0	0	0	0	0	0
4	Adekola ,T (Treasure)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Adekola ,T (Treasure)	1	1387.3	962.3	1	1410.7	962.3	0	0	0	0	0	0
5	Nkosi ,M (Mandisa)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nkosi ,M (Mandisa)	1	1232.9	1657.9	1	1179.2	1657.9	0	0	0	0	0	0
6	Buthelezi ,T (Thandolwethu)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Buthelezi ,T (Thandolwethu)	1	1207.8	1207.8	1	1209	1207.8	0	0	0	0	0	0
7	Ngubane ,N (Ngcebo)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ngubane ,N (Ngcebo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Mamba ,S (Sanele)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mamba ,S (Sanele)	1	1192.5	1617.5	1	1188.5	1617.5	0	0	0	0	0	0
9	Segadevan ,S (Saien)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Segadevan ,S (Saien)	1	1500.4	1075.4	1	1493.3	1075.4	0	0	0	0	0	0
10	Mbeje ,A (Aphiwe)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mbeje ,A (Aphiwe)	1	1211.3	1636.3	1	1213.3	1636.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Dekker, J (Jean)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms