Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koster, K (Kaelen)

Chess SA id

1130149284

FIDE id

Date of birth

2013-01-18 (U14)

Gender

Male

Region

Ethekwini (KED)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1202.8	1200	1205.6	1200
Raw rating	1202.8	1200	1205.6	1200
Weighted rating	1201.4	1200	1203.2	1200
Weighted performance	0	0	0	0
Floor	702.8	700	705.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.2	165.8	164.5	165.8
Highest rating	1202.8 2024-08-01	1200 2018-10-01	1205.6 2024-08-01	1200 2018-10-01
Highest raw rating	1202.8 2024-08-01	1200 2024-03-01	1205.6 2024-08-01	1200 2024-03-01
Highest weighted rating	1202.8 2018-10-01	1200 2018-10-01	1205.6 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-03-01	1204.1 2023-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1202.8	1200	1205.6	1200
Analysis
Rating	1202.8	1200	1205.6	1200
Raw rating	1202.8	1200	1205.6	1200
Weighted rating	1201.4	1200	1203.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	702.8	700	705.6	700
Max/Min rating change allowed	165.2	165.8	164.5	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	1202.8	1200	1205.6	1200
New weighted rating	1201.7	1200	1203.7	1200
New weighted performance	0	0	0	0
Temp new rating	1202.8	1200	1205.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1202.8	1200	1205.6	1200
New K-factor	36	36	36	36
New floor	702.8	700	705.6	700

Item	Main	Rapid
	0	0
	0	0
	13	13
	12	12
	0	0
	0	0
History	25	25

Games since
	Main 13	Standard 0		Rapid 13		Blitz 0
Gender	Male
Age group	U14
Region	Ethekwini (KED)
Province	KwaZulu Natal (KZ)
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	25	12	48	-17	1213.4	1196.4
Standard	0	0	0	0	0	0
Rapid	25	12	48	-17	1213.4	1196.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1202.8	1200	1205.6	1200
2025-09-30	1202.8	1200	1205.6	1200
2025-09-01	1202.8	1200	1205.6	1200
2025-08-01	1202.8	1200	1205.6	1200
2025-07-01	1202.8	1200	1205.6	1200
2025-06-01	1202.8	1200	1205.6	1200
2025-05-01	1202.8	1200	1205.6	1200
2025-04-01	1202.8	1200	1205.6	1200
2025-03-01	1202.8	1200	1205.6	1200
2025-02-01	1202.8	1200	1205.6	1200
2025-01-01	1202.8	1200	1205.6	1200
2024-12-01	1202.8	1200	1205.6	1200
2024-11-01	1202.8	1200	1205.6	1200
2024-10-01	1202.8	1200	1205.6	1200
2024-09-01	1202.8	1200	1205.6	1200
2024-08-01	1202.8	1200	1205.6	1200
2024-07-01	1190.9	1200	1185.2	1200
2024-09-01	1190.9	1200	1185.2	1200
2024-05-01	1190.9	1200	1185.2	1200
2024-04-01	1190.9	1200	1185.2	1200
2024-03-01	1190.9	1200	1185.2	1200
2024-02-01	1190.9	1200	1185.2	1200
2024-01-01	1190.9	1200	1185.2	1200
2023-12-01	1190.9	1200	1185.2	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	St James School Rapid Rated Chess Tournament 2024 (Senior Primary)	2024-07-20	2024-07-20	Rapid	Ethekwini (KED)	6	6	2.5	Yes	Analysis
2	Durban & Districts Chess Challenge 2024 (U12)	2024-06-08	2024-06-08	Rapid	Ethekwini (KED)	7	7	4	Yes	Analysis
3	Westville Senior Primary School Individual Invitational Chess Tournament 2023 (Senior Primary)	2023-04-22	2023-04-22	Rapid	Ethekwini (KED)	7	7	3	Yes	Analysis
4	St James 2023 (Senior Primary)	2023-02-11	2023-02-11	Rapid	Ethekwini (KED)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament St James 2023				Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023
		date 2023-02-11	rnd 3	type Rapid	result 1	date 2023-04-22	rnd 2	type Rapid	result 1
		Opponent Ramnarain, S (Shriya)				Opponent White, A (Arianna)
2	3	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 5	type Rapid	result 0.5	date 2024-06-08	rnd 7	type Rapid	result 1
		Opponent Mohan, V (Viraat)				Opponent Ori, S (Siddarth)
3	2	Tournament St James School Rapid Rated Chess Tournament 2024				Tournament St James School Rapid Rated Chess Tournament 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-07-20	rnd 3	type Rapid	result 0.5
		Opponent Mlangeni, K (Kutloano)				Opponent Munasur, D (Dishen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament St James 2023				Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023
		date 2023-02-11	rnd 3	type Rapid	result 1	date 2023-04-22	rnd 2	type Rapid	result 1
		Opponent Ramnarain, S (Shriya)				Opponent White, A (Arianna)
2	3	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 5	type Rapid	result 0.5	date 2024-06-08	rnd 7	type Rapid	result 1
		Opponent Mohan, V (Viraat)				Opponent Ori, S (Siddarth)
3	2	Tournament St James School Rapid Rated Chess Tournament 2024				Tournament St James School Rapid Rated Chess Tournament 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-07-20	rnd 3	type Rapid	result 0.5
		Opponent Mlangeni, K (Kutloano)				Opponent Munasur, D (Dishen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 7	type Rapid	result 1
		Opponent Prithiepal, S (Sohan)				Opponent Ori, S (Siddarth)
2	2	Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023				Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023
		date 2023-04-22	rnd 1	type Rapid	result 1	date 2023-04-22	rnd 2	type Rapid	result 1
		Opponent Ngcongo, L (Lwandile)				Opponent White, A (Arianna)
3	2	Tournament St James 2023				Tournament St James 2023
		date 2023-02-11	rnd 3	type Rapid	result 1	date 2023-02-11	rnd 4	type Rapid	result 1
		Opponent Ramnarain, S (Shriya)				Opponent Singh, A (Arabella)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 7	type Rapid	result 1
		Opponent Prithiepal, S (Sohan)				Opponent Ori, S (Siddarth)
2	2	Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023				Tournament Westville Senior Primary School Individual Invitational Chess Tournament 2023
		date 2023-04-22	rnd 1	type Rapid	result 1	date 2023-04-22	rnd 2	type Rapid	result 1
		Opponent Ngcongo, L (Lwandile)				Opponent White, A (Arianna)
3	2	Tournament St James 2023				Tournament St James 2023
		date 2023-02-11	rnd 3	type Rapid	result 1	date 2023-02-11	rnd 4	type Rapid	result 1
		Opponent Ramnarain, S (Shriya)				Opponent Singh, A (Arabella)

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	Mbeje ,U (Uminathi)	1	0	-425	0	0	0	1	0	-425	0	0	0
1	Mbeje ,U (Uminathi)	1	1244.1	819.1	0	0	0	1	1220	819.1	0	0	0
2	Claire ,C (Caleb)	1	1	425	0	0	0	1	1	425	0	0	0
2	Claire ,C (Caleb)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
3	Singh ,A (Arabella)	1	1	425	0	0	0	1	1	425	0	0	0
3	Singh ,A (Arabella)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
4	King ,C (Caleb)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	King ,C (Caleb)	1	1184.8	759.8	0	0	0	1	1200	759.8	0	0	0
5	Mohan ,V (Viraat)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
5	Mohan ,V (Viraat)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
6	Pillay ,R (Rushanth)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Pillay ,R (Rushanth)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Bramdeo ,A (Arik)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Bramdeo ,A (Arik)	1	1266.2	841.2	0	0	0	1	1304.7	841.2	0	0	0
8	Prithiepal ,S (Sohan)	1	1	425	0	0	0	1	1	425	0	0	0
8	Prithiepal ,S (Sohan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Jugree ,A (Abhay)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Jugree ,A (Abhay)	1	1523	1098	0	0	0	1	1511.1	1098	0	0	0
10	Sithole ,N (Ntokozo)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Sithole ,N (Ntokozo)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Koster, K (Kaelen)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms