Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, K (Kelvin)

Chess SA id

1110136656

FIDE id

Date of birth

2011-10-17 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1170	1163	1200	1200
Raw rating	1169.7	1162.6	1200	1200
Weighted rating	1170	1163	1200	1200
Weighted performance	890.7	886.9	0	0
Floor	702.7	703.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.1	174.9	165.8	165.8
Highest rating	1220.7 2022-07-01	1212.1 2022-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1202.7 2023-08-01	1203.2 2023-08-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1202.7 2018-10-01	1203.2 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1220.7 2022-07-01	1212.1 2022-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.1	0	0
New rating	1170.1	1163.1	1200	1200
Analysis
Rating	1170	1163	1200	1200
Raw rating	1169.7	1162.6	1200	1200
Weighted rating	1170	1163	1200
Weighted performance	890.7	886.9	0
K-factor	36	36	36	36
Floor	702.7	703.2	700	700
Max/Min rating change allowed	173.1	174.9	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	1169.7	1162.6	1200	1200
New weighted rating	1170.1	1163.1	1200	1200
New weighted performance	890.3	886.5	0	0
Temp new rating	1170.1	1163.1	1200	1200
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1170.1	1163.1	1200	1200
New K-factor	36	36	36	36
New floor	702.7	703.2	700	700

Item	Main	Standard
	0	0
	0	0
	10	10
	10	10
	8	8
	0	0
History	28	28

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	28	12	42.86	-60.7	1207.5	1146.8
Standard	28	12	42.86	-60.7	1207.5	1146.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1169.7	1162.6	1200	1200
2025-09-01	1169.7	1162.6	1200	1200
2025-08-01	1169.7	1162.6	1200	1200
2025-07-01	1169.6	1162.5	1200	1200
2025-06-01	1169.6	1162.5	1200	1200
2025-05-01	1169.6	1162.5	1200	1200
2025-04-01	1169.6	1162.5	1200	1200
2025-03-01	1169.6	1162.5	1200	1200
2025-02-01	1169.5	1162.3	1200	1200
2025-01-01	1164.1	1155.7	1200	1200
2024-12-01	1164.1	1155.7	1200	1200
2024-11-01	1164.1	1155.7	1200	1200
2024-10-01	1164.1	1155.7	1200	1200
2024-09-01	1164.1	1155.7	1200	1200
2024-08-01	1200.3	1200.3	1200	1200
2024-07-01	1200.3	1200.3	1200	1200
2024-06-01	1200.3	1200.3	1200	1200
2024-08-01	1157	1147	1200	1200
2024-04-01	1157	1147	1200	1200
2024-03-01	1157	1147	1200	1200
2024-02-01	1157	1147	1200	1200
2024-01-01	1157	1147	1200	1200
2023-12-01	1157	1147	1200	1200
2023-11-01	1157	1147	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	D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13A)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	2024 Tshwane South School District CLOSED Individual Championships (U13 Mixed)	2024-05-11	2024-05-11	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2023 Gauteng Top Schools (U13 Mixed)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
4	2023 Tshwane South School District CLOSED League Championship (U13)	2023-07-29	2023-07-29	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	D4 Play Offs 2022 (U11)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	3	2	Yes	Analysis
6	2022 Tshwane Chess Open Registration Tournament (D2)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Le Roux, B (Benn)				Opponent De Jager, G (Gustave)
2	4	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament D4 Play Offs 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Olivier, T (Theana)				Opponent Richards, J (Jc)
3	2	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Gauteng Top Schools
		date 2023-07-29	rnd 5	type Standard	result 0.5	date 2023-08-18	rnd 1	type Standard	result 1
		Opponent Ramkhelawan, A (Adhi)				Opponent Mpofu, L (Learnard)

#	Games	Start				End
1	5	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Le Roux, B (Benn)				Opponent De Jager, G (Gustave)
2	4	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament D4 Play Offs 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Olivier, T (Theana)				Opponent Richards, J (Jc)
3	2	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Gauteng Top Schools
		date 2023-07-29	rnd 5	type Standard	result 0.5	date 2023-08-18	rnd 1	type Standard	result 1
		Opponent Ramkhelawan, A (Adhi)				Opponent Mpofu, L (Learnard)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-05-11	rnd 3	type Standard	result 1
		Opponent Le Roux, B (Benn)				Opponent Pretorius, P (Pieter)
2	2	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Yousafzai, S (Sangin Khan)
3	2	Tournament D4 Play Offs 2022				Tournament D4 Play Offs 2022
		date 2022-07-30	rnd 1	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Eksteen, A (Andrich)				Opponent Richards, J (Jc)

#	Games	Start				End
1	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-05-11	rnd 3	type Standard	result 1
		Opponent Le Roux, B (Benn)				Opponent Pretorius, P (Pieter)
2	2	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Yousafzai, S (Sangin Khan)
3	2	Tournament D4 Play Offs 2022				Tournament D4 Play Offs 2022
		date 2022-07-30	rnd 1	type Standard	result 1	date 2022-07-30	rnd 2	type Standard	result 1
		Opponent Eksteen, A (Andrich)				Opponent Richards, J (Jc)

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	Pretorius ,P (Pieter)	1	1	425	1	1	425	0	0	0	0	0	0
1	Pretorius ,P (Pieter)	1	1296.1	1721.1	1	1293.9	1721.1	0	0	0	0	0	0
2	Vermaak ,GJ (Gerhardus Jacobus (Eckhard))	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Vermaak ,GJ (Gerhardus Jacobus (Eckhard))	1	1265.8	840.8	1	1267.9	840.8	0	0	0	0	0	0
3	Wiehahn ,H (Hailey)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Wiehahn ,H (Hailey)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
4	Maheshi ,R (Rehaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Maheshi ,R (Rehaan)	1	1101.1	676.1	1	1076.7	676.1	0	0	0	0	0	0
5	Richards ,J (Jc)	1	1	425	1	1	425	0	0	0	0	0	0
5	Richards ,J (Jc)	1	1131.3	1556.3	1	1115.6	1556.3	0	0	0	0	0	0
6	Mpofu ,L (Learnard)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mpofu ,L (Learnard)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Krause ,R (Ricardo Freitas)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Krause ,R (Ricardo Freitas)	1	1262.7	837.7	1	1269.4	837.7	0	0	0	0	0	0
8	Van Wyk ,L (Louis)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Van Wyk ,L (Louis)	1	1303.8	1303.8	1	1298.7	1303.8	0	0	0	0	0	0
9	Vindell ,K (Kevin)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Vindell ,K (Kevin)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Mcphail ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mcphail ,M (Matthew)	1	1266.2	841.2	1	1262	841.2	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

Van Der Westhuizen, K (Kelvin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms