Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Koker, C (Caleb)

Chess SA id

1130152774

FIDE id

Date of birth

2013-05-01 (U14)

Gender

Male

Region

Frances Baard (NCF)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1230.2	1234.1	1200	1200
Raw rating	1230.2	1234.1	1200	1200
Weighted rating	1230.2	1234.1	1200	1200
Weighted performance	0	0	0	0
Floor	730.2	734.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.8	158	165.8	165.8
Highest rating	1247 2023-08-01	1244.5 2023-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1230.2 2024-03-01	1234.1 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1230.2 2025-07-01	1234.1 2025-07-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1247 2023-08-01	1244.5 2023-08-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1230.2	1234.1	1200	1200
Analysis
Rating	1230.2	1234.1	1200	1200
Raw rating	1230.2	1234.1	1200	1200
Weighted rating	1230.2	1234.1	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	730.2	734.1	700	700
Max/Min rating change allowed	158.8	158	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	1230.2	1234.1	1200	1200
New weighted rating	1230.2	1234.1	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1230.2	1234.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1230.2	1234.1	1200	1200
New K-factor	36	36	36	36
New floor	730.2	734.1	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	16	16
	0	0
	0	0
History	16	16

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Frances Baard (NCF)
Province	Northern Cape (NC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	16	8.5	53.12	26.6	1225	1251.6
Standard	16	8.5	53.12	26.6	1225	1251.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1230.2	1234.1	1200	1200
2025-09-01	1230.2	1234.1	1200	1200
2025-08-01	1230.2	1234.1	1200	1200
2025-07-01	1230.2	1234.1	1200	1200
2025-06-01	1230.2	1234.1	1200	1200
2025-05-01	1230.2	1234.1	1200	1200
2025-04-01	1230.2	1234.1	1200	1200
2025-03-01	1230.2	1234.1	1200	1200
2025-02-01	1230.2	1234.1	1200	1200
2025-01-01	1230.2	1234.1	1200	1200
2024-12-01	1230.2	1234.1	1200	1200
2024-11-01	1230.2	1234.1	1200	1200
2024-10-01	1230.2	1234.1	1200	1200
2024-09-01	1230.2	1234.1	1200	1200
2024-08-01	1230.2	1234.1	1200	1200
2024-07-01	1230.2	1234.1	1200	1200
2024-06-01	1230.2	1234.1	1200	1200
2024-08-01	1230.2	1234.1	1200	1200
2024-04-01	1230.2	1234.1	1200	1200
2024-03-01	1230.2	1234.1	1200	1200
2024-02-01	1230.2	1234.1	1200	1200
2024-01-01	1230.2	1234.1	1200	1200
2023-12-01	1230.2	1234.1	1200	1200
2023-11-01	1230.2	1234.1	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	Frances Baard Schools Open III 2023 (U11)	2023-08-05	2023-08-05	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
2	Kimberley Chess Club School Holiday Tournament 2023 (U12)	2023-06-29	2023-06-29	Standard	Frances Baard (NCF)	6	6	3	Yes	Analysis
3	Frances Baard School Open II 2023 (U11)	2023-03-18	2023-03-18	Standard	Frances Baard (NCF)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Fru, E (Emory)				Opponent Masike, K (Kitso)
2	2	Tournament Kimberley Chess Club School Holiday Tournament 2023				Tournament Kimberley Chess Club School Holiday Tournament 2023
		date 2023-06-29	rnd 2	type Standard	result 1	date 2023-06-29	rnd 3	type Standard	result 1
		Opponent Ngqele, N (Noluthando)				Opponent Mphofu, M (Musa)
3	2	Tournament Frances Baard School Open II 2023				Tournament Frances Baard School Open II 2023
		date 2023-03-18	rnd 4	type Standard	result 0.5	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Jansen, T (Taih)				Opponent Africa, A (Amantle)

#	Games	Start				End
1	2	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Fru, E (Emory)				Opponent Masike, K (Kitso)
2	2	Tournament Kimberley Chess Club School Holiday Tournament 2023				Tournament Kimberley Chess Club School Holiday Tournament 2023
		date 2023-06-29	rnd 2	type Standard	result 1	date 2023-06-29	rnd 3	type Standard	result 1
		Opponent Ngqele, N (Noluthando)				Opponent Mphofu, M (Musa)
3	2	Tournament Frances Baard School Open II 2023				Tournament Frances Baard School Open II 2023
		date 2023-03-18	rnd 4	type Standard	result 0.5	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Jansen, T (Taih)				Opponent Africa, A (Amantle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Fru, E (Emory)				Opponent Masike, K (Kitso)
2	2	Tournament Kimberley Chess Club School Holiday Tournament 2023				Tournament Kimberley Chess Club School Holiday Tournament 2023
		date 2023-06-29	rnd 2	type Standard	result 1	date 2023-06-29	rnd 3	type Standard	result 1
		Opponent Ngqele, N (Noluthando)				Opponent Mphofu, M (Musa)
3	1	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 2	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Van Staden, C (Clarisse)				Opponent Van Staden, C (Clarisse)

#	Games	Start				End
1	2	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Fru, E (Emory)				Opponent Masike, K (Kitso)
2	2	Tournament Kimberley Chess Club School Holiday Tournament 2023				Tournament Kimberley Chess Club School Holiday Tournament 2023
		date 2023-06-29	rnd 2	type Standard	result 1	date 2023-06-29	rnd 3	type Standard	result 1
		Opponent Ngqele, N (Noluthando)				Opponent Mphofu, M (Musa)
3	1	Tournament Frances Baard Schools Open III 2023				Tournament Frances Baard Schools Open III 2023
		date 2023-08-05	rnd 2	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Van Staden, C (Clarisse)				Opponent Van Staden, C (Clarisse)

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	Africa ,A (Amantle)	2	1	0	2	1	0	0	0	0	0	0	0
1	Africa ,A (Amantle)	2	1195.7	1195.7	2	1194.8	1195.7	0	0	0	0	0	0
2	Ahjum ,AXE (Annabelle)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Ahjum ,AXE (Annabelle)	2	1408.7	983.7	2	1410.3	983.7	0	0	0	0	0	0
3	Jansen ,T (Taih)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Jansen ,T (Taih)	1	1168.4	1168.4	1	1162	1168.4	0	0	0	0	0	0
4	Malemela ,G (Gomolemo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Malemela ,G (Gomolemo)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mathamela ,B (Bokang)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mathamela ,B (Bokang)	1	1208.2	783.2	1	1165.2	783.2	0	0	0	0	0	0
6	Oosthuizen ,M (Mackaylin)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Oosthuizen ,M (Mackaylin)	1	1200	775	1	1199.2	775	0	0	0	0	0	0
7	Masike ,K (Kitso)	1	1	425	1	1	425	0	0	0	0	0	0
7	Masike ,K (Kitso)	1	1199	1624	1	1198	1624	0	0	0	0	0	0
8	Sekamoeng ,N (Neelo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Sekamoeng ,N (Neelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Mothelesi ,O (Oratilwe)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mothelesi ,O (Oratilwe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Ngqele ,N (Noluthando)	1	1	425	1	1	425	0	0	0	0	0	0
10	Ngqele ,N (Noluthando)	1	1200	1625	1	1200	1625	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

De Koker, C (Caleb)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms