Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, D (Derick)

Chess SA id

1090107095

FIDE id

Date of birth

2009-02-12 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-08-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1254.9	1205.5	1275	1200
Raw rating	1254.9	1205.5	1275	1200
Weighted rating	1254.9	1205.5	1275	1200
Weighted performance	645.9	0	0	0
Floor	764.2	715.2	775	700
K-factor	36	36	36	36
Min/Max rating change allowed	153.3	164.5	149	165.8
Highest rating	1264.2 2022-06-01	1215.2 2022-06-01	1288.4 2018-10-01	1200 2018-10-01
Highest raw rating	1264.2 2022-06-01	1215.2 2022-06-01	1275 2024-02-01	1200 2024-02-01
Highest weighted rating	1264.2 2024-03-01	1215.2 2024-04-01	1275 2024-02-01	1200 2018-10-01
Highest weighted performance	1220 2022-05-01	1200 2018-02-01	1288.4 2018-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1254.9	1205.5	1275	1200
Analysis
Rating	1254.9	1205.5	1275	1200
Raw rating	1254.9	1205.5	1275	1200
Weighted rating	1254.9	1205.5	1275
Weighted performance	645.9	0	0
K-factor	36	36	36	36
Floor	764.2	715.2	775	700
Max/Min rating change allowed	153.3	164.5	149	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	1254.9	1205.5	1275	1200
New weighted rating	1254.9	1205.5	1275	1200
New weighted performance	638.3	0	0	0
Temp new rating	1254.9	1205.5	1275	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1254.9	1205.5	1275	1200
New K-factor	36	36	36	36
New floor	764.2	715.2	775	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	14	14	0
	5	0	5
History	48	26	22

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	48	26	54.17	35.4	1213.8	1249.2
Standard	26	13	50	0	1213.6	1213.6
Rapid	22	13	59.09	77.3	1214	1291.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1254.9	1205.5	1275	1200
2025-09-30	1254.9	1205.5	1275	1200
2025-09-01	1254.9	1205.5	1275	1200
2025-08-01	1254.9	1205.5	1275	1200
2025-07-01	1254.9	1205.5	1275	1200
2025-06-01	1254.9	1205.5	1275	1200
2025-05-01	1254.9	1205.5	1275	1200
2025-04-01	1254.9	1205.5	1275	1200
2025-03-01	1254.9	1205.5	1275	1200
2025-02-01	1254.9	1205.5	1275	1200
2025-01-01	1254.9	1205.5	1275	1200
2024-12-01	1254.9	1205.5	1275	1200
2024-11-01	1254.9	1205.5	1275	1200
2024-10-01	1254.9	1205.5	1275	1200
2024-09-01	1254.9	1205.5	1275	1200
2024-08-01	1254.9	1205.5	1275	1200
2024-07-01	1254.9	1205.5	1275	1200
2024-09-01	1254.9	1205.5	1275	1200
2024-05-01	1254.9	1205.5	1275	1200
2024-04-01	1254.9	1205.5	1275	1200
2024-03-01	1254.9	1205.5	1275	1200
2024-02-01	1254.9	1205.5	1275	1200
2024-01-01	1254.9	1205.5	1275	1200
2023-12-01	1254.9	1205.5	1275	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	Cape Winelands Schools Top Schools 2022 (U13 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	3	1	Yes	Analysis
2	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	Cape Winelands Schools 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
4	Cape Winelands Schools Closed 2021 (U13 Boys)	2021-09-24	2021-09-24	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	2020 Western Province Open (Development)	2020-03-07	2020-03-07	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
6	Nelson Mandela Rapid 2020 (Primary School)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
7	Cape Winelands Schools Trials 1 2020 (U11 Boys)	2020-02-08	2020-02-08	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
8	Cape Winelands Schools Closed 2019 (U11 Boys)	2019-03-16	2019-03-17	Standard	Cape Winelands (WCW)	7	7	2.5	Yes	Analysis
9	Courtrai Young Masters 2018 (U10)	2018-10-27	2018-10-27	Rapid	Cape Winelands (WCW)	7	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Courtrai Young Masters 2018				Tournament Cape Winelands Schools Closed 2019
		date 2018-10-27	rnd 3	type Rapid	result 1	date 2019-03-16	rnd 1	type Standard	result 0.5
		Opponent Sharma, M (Mihir)				Opponent Kriel, M (Marnus Juan)
2	3	Tournament Cape Winelands Schools 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 4	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Dangazele, S (Sibabalwe)				Opponent Petersen, S (Shenwin)
3	3	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools 2022
		date 2021-09-24	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 2	type Standard	result 0.5
		Opponent Baron, Z (Zeke)				Opponent De Klerk, H (Hanro)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 4	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Dangazele, S (Sibabalwe)				Opponent Petersen, S (Shenwin)
2	2	Tournament Cape Winelands Schools 2022				Tournament Cape Winelands Schools 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-03-12	rnd 2	type Standard	result 0.5
		Opponent Samuels, R (Reagan)				Opponent De Klerk, H (Hanro)
3	2	Tournament 2020 Western Province Open				Tournament 2020 Western Province Open
		date 2020-03-07	rnd 3	type Standard	result 1	date 2020-03-07	rnd 4	type Standard	result 1
		Opponent Adonis, D (Dylan)				Opponent Warren, T (Tristan)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-08	rnd 2	type Rapid	result 1	date 2020-02-08	rnd 4	type Rapid	result 1
		Opponent Du Preez, A (Andre)				Opponent Kana, D (Deequin)
2	3	Tournament Courtrai Young Masters 2018				Tournament Courtrai Young Masters 2018
		date 2018-10-27	rnd 3	type Rapid	result 1	date 2018-10-27	rnd 5	type Rapid	result 1
		Opponent Sharma, M (Mihir)				Opponent Malan, J (Jade-Leigh)
3	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 2	type Rapid	result 1	date 2021-09-24	rnd 3	type Rapid	result 1
		Opponent De Vlam, J (Jemeal)				Opponent Uys, K (Kayde)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands Schools 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 4	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Dangazele, S (Sibabalwe)				Opponent Petersen, S (Shenwin)
2	3	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-08	rnd 2	type Rapid	result 1	date 2020-02-08	rnd 4	type Rapid	result 1
		Opponent Du Preez, A (Andre)				Opponent Kana, D (Deequin)
3	3	Tournament Courtrai Young Masters 2018				Tournament Courtrai Young Masters 2018
		date 2018-10-27	rnd 3	type Rapid	result 1	date 2018-10-27	rnd 5	type Rapid	result 1
		Opponent Sharma, M (Mihir)				Opponent Malan, J (Jade-Leigh)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 4	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Dangazele, S (Sibabalwe)				Opponent Petersen, S (Shenwin)
2	2	Tournament 2020 Western Province Open				Tournament 2020 Western Province Open
		date 2020-03-07	rnd 3	type Standard	result 1	date 2020-03-07	rnd 4	type Standard	result 1
		Opponent Adonis, D (Dylan)				Opponent Warren, T (Tristan)
3	1	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-08-27	rnd 1	type Standard	result 1
		Opponent Fourie, O (Ockert)				Opponent Fourie, O (Ockert)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-08	rnd 2	type Rapid	result 1	date 2020-02-08	rnd 4	type Rapid	result 1
		Opponent Du Preez, A (Andre)				Opponent Kana, D (Deequin)
2	3	Tournament Courtrai Young Masters 2018				Tournament Courtrai Young Masters 2018
		date 2018-10-27	rnd 3	type Rapid	result 1	date 2018-10-27	rnd 5	type Rapid	result 1
		Opponent Sharma, M (Mihir)				Opponent Malan, J (Jade-Leigh)
3	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 2	type Rapid	result 1	date 2021-09-24	rnd 3	type Rapid	result 1
		Opponent De Vlam, J (Jemeal)				Opponent Uys, K (Kayde)

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	Oosthuizen ,E (Ethan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Oosthuizen ,E (Ethan)	3	1307.2	1165.6	3	1278.5	1165.6	0	0	0	0	0	0
2	Zungula ,C (Chulumanco)	2	1	0	1	0	-425	1	1	425	0	0	0
2	Zungula ,C (Chulumanco)	2	1176.1	1176.1	1	1100.8	751.1	1	1297.7	1601.1	0	0	0
3	Uys ,K (Kayde)	2	2	425	1	1	425	1	1	425	0	0	0
3	Uys ,K (Kayde)	2	1154.2	1579.2	1	1200	1579.2	1	1120.8	1579.2	0	0	0
4	Winters ,S (Sarocco)	1	1	425	1	1	425	0	0	0	0	0	0
4	Winters ,S (Sarocco)	1	1184.6	1609.6	1	1200	1609.6	0	0	0	0	0	0
5	Petersen ,S (Shenwin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Petersen ,S (Shenwin)	1	1368.8	1793.8	1	1380.3	1793.8	0	0	0	0	0	0
6	Adonis ,D (Dylan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Adonis ,D (Dylan)	1	1123.4	1548.4	1	976	1548.4	0	0	0	0	0	0
7	Fourie ,O (Ockert)	1	1	425	1	1	425	0	0	0	0	0	0
7	Fourie ,O (Ockert)	1	1142.9	1567.9	1	1130.8	1567.9	0	0	0	0	0	0
8	Jansen ,V (Verron)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Jansen ,V (Verron)	1	772.1	347.1	1	642.4	347.1	0	0	0	0	0	0
9	Samuels ,R (Reagan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Samuels ,R (Reagan)	1	1380.8	1805.8	1	1237.1	1805.8	0	0	0	0	0	0
10	Williams ,T (Tara)	1	1	425	1	1	425	0	0	0	0	0	0
10	Williams ,T (Tara)	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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Personal

Botha, D (Derick)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms