Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Jaco)

Chess SA id

103079983

FIDE id

Date of birth

2003-11-14 (Adult)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-11-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1223.7	1200	1179.6	1200
Raw rating	1223.7	1200	1179.6	1200
Weighted rating	1223.7	1200	1179.6	1200
Weighted performance	0	0	0	0
Floor	723.7	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.3	165.8	170.7	165.8
Highest rating	1223.7 2024-02-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1223.7 2024-02-01	1200 2024-02-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1223.7 2025-02-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1214.5 2022-11-01	1200 2024-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1223.7	1200	1179.6	1200
Analysis
Rating	1223.7	1200	1179.6	1200
Raw rating	1223.7	1200	1179.6	1200
Weighted rating	1223.7	1200	1179.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	723.7	700	700	700
Max/Min rating change allowed	160.3	165.8	170.7	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	1223.7	1200	1179.6	1200
New weighted rating	1223.7	1200	1179.6	1200
New weighted performance	0	0	0	0
Temp new rating	1223.7	1200	1179.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1223.7	1200	1179.6	1200
New K-factor	36	36	36	36
New floor	723.7	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	15	0	15
	0	0	0
History	24	9	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	15	7.5	50	0	1272.1	1272.1
Standard	0	0	0	0	0	0
Rapid	15	7.5	50	0	1272.1	1272.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1223.7	1200	1179.6	1200
2025-09-01	1223.7	1200	1179.6	1200
2025-08-01	1223.7	1200	1179.6	1200
2025-07-01	1223.7	1200	1179.6	1200
2025-06-01	1223.7	1200	1179.6	1200
2025-05-01	1223.7	1200	1179.6	1200
2025-04-01	1223.7	1200	1179.6	1200
2025-03-01	1223.7	1200	1179.6	1200
2025-02-01	1223.7	1200	1179.6	1200
2025-01-01	1223.7	1200	1179.6	1200
2024-12-01	1223.7	1200	1179.6	1200
2024-11-01	1223.7	1200	1179.6	1200
2024-10-01	1223.7	1200	1179.6	1200
2024-09-01	1223.7	1200	1179.6	1200
2024-08-01	1223.7	1200	1179.6	1200
2024-07-01	1223.7	1200	1179.6	1200
2024-06-01	1223.7	1200	1179.6	1200
2024-08-01	1223.7	1200	1179.6	1200
2024-04-01	1223.7	1200	1179.6	1200
2024-03-01	1223.7	1200	1179.6	1200
2024-02-01	1223.7	1200	1179.6	1200
2024-01-01	1223.7	1200	1179.6	1200
2023-12-01	1223.7	1200	1179.6	1200
2023-11-01	1223.7	1200	1179.6	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	Slum Knights 6th Open 2022 (B)	2022-11-12	2022-11-12	Rapid	Buffalo City (EBC)	8	8	4.5	Yes	Analysis
2	BC Chess Trials 5 of 5 2022 (B)	2022-06-11	2022-06-11	Rapid	Buffalo City (EBC)	7	7	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 2	type Rapid	result 1	date 2022-11-12	rnd 4	type Rapid	result 1
		Opponent Jikijela, A (Awenkosi)				Opponent George, A (Alaina)
2	2	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 6	type Rapid	result 1	date 2022-11-12	rnd 7	type Rapid	result 0.5
		Opponent Dyakopu, T (Thankdo)				Opponent Botha, T (Tyler)
3	2	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Moonilial, Y (Yashay)				Opponent Sibanda, S (Siyabonga)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 2	type Rapid	result 1	date 2022-11-12	rnd 4	type Rapid	result 1
		Opponent Jikijela, A (Awenkosi)				Opponent George, A (Alaina)
2	2	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 6	type Rapid	result 1	date 2022-11-12	rnd 7	type Rapid	result 0.5
		Opponent Dyakopu, T (Thankdo)				Opponent Botha, T (Tyler)
3	2	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Moonilial, Y (Yashay)				Opponent Sibanda, S (Siyabonga)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 2	type Rapid	result 1	date 2022-11-12	rnd 4	type Rapid	result 1
		Opponent Jikijela, A (Awenkosi)				Opponent George, A (Alaina)
2	2	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Moonilial, Y (Yashay)				Opponent Sibanda, S (Siyabonga)
3	1	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 6	type Rapid	result 1	date 2022-11-12	rnd 6	type Rapid	result 1
		Opponent Dyakopu, T (Thankdo)				Opponent Dyakopu, T (Thankdo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 2	type Rapid	result 1	date 2022-11-12	rnd 4	type Rapid	result 1
		Opponent Jikijela, A (Awenkosi)				Opponent George, A (Alaina)
2	2	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 1	type Rapid	result 1	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Moonilial, Y (Yashay)				Opponent Sibanda, S (Siyabonga)
3	1	Tournament Slum Knights 6th Open 2022				Tournament Slum Knights 6th Open 2022
		date 2022-11-12	rnd 6	type Rapid	result 1	date 2022-11-12	rnd 6	type Rapid	result 1
		Opponent Dyakopu, T (Thankdo)				Opponent Dyakopu, T (Thankdo)

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	Dyakopu ,T (Thankdo)	1	1	425	0	0	0	1	1	425	0	0	0
1	Dyakopu ,T (Thankdo)	1	1117.6	1542.6	0	0	0	1	1156.3	1542.6	0	0	0
2	Pearson ,D (Dane)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Pearson ,D (Dane)	1	1303.7	878.7	0	0	0	1	967.6	878.7	0	0	0
3	Ralph ,D (Daniel)	1	1	425	0	0	0	1	1	425	0	0	0
3	Ralph ,D (Daniel)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
4	Qengqa ,A (Asitha)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Qengqa ,A (Asitha)	1	1200	775	0	0	0	1	1200	775	0	0	0
5	Pearson ,E (Ethan)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Pearson ,E (Ethan)	1	1368.4	943.4	0	0	0	1	1113.2	943.4	0	0	0
6	Boshoff ,P (Pieter)	1	1	425	0	0	0	1	1	425	0	0	0
6	Boshoff ,P (Pieter)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	George ,A (Alaina)	1	1	425	0	0	0	1	1	425	0	0	0
7	George ,A (Alaina)	1	1307.5	1732.5	0	0	0	1	1294.5	1732.5	0	0	0
8	Botha ,T (Tyler)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Botha ,T (Tyler)	1	1403.5	1403.5	0	0	0	1	1171.6	1403.5	0	0	0
9	Moonilial ,Y (Yashay)	1	1	425	0	0	0	1	1	425	0	0	0
9	Moonilial ,Y (Yashay)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Gower ,D (Daniel)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Gower ,D (Daniel)	1	1231	806	0	0	0	1	1214.4	806	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

Van Der Merwe, J (Jaco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms