Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, A (Aiden Joshua)

Chess SA id

1140134633

FIDE id

Date of birth

2014-05-29 (U12)

Gender

Male

Region

Chess South Africa (CSA)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-07-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1338.6	1352.4	1200	1200
Raw rating	1338.6	1352.4	1200	1200
Weighted rating	1338.6	1352.4	1200	1200
Weighted performance	928.1	926.9	0	0
Floor	838.6	852.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	136.1	133.5	165.8	165.8
Highest rating	1424.5 2021-08-01	1424.7 2021-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1338.6 2024-02-01	1352.4 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1338.6 2025-06-01	1352.4 2025-06-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1424.5 2021-08-01	1424.7 2021-08-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1338.6	1352.4	1200	1200
Analysis
Rating	1338.6	1352.4	1200	1200
Raw rating	1338.6	1352.4	1200	1200
Weighted rating	1338.6	1352.4	1200
Weighted performance	928.1	926.9	0
K-factor	36	36	36	36
Floor	838.6	852.4	700	700
Max/Min rating change allowed	136.1	133.5	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	1338.6	1352.4	1200	1200
New weighted rating	1338.6	1352.4	1200	1200
New weighted performance	927.6	926.4	0	0
Temp new rating	1338.6	1352.4	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1338.6	1352.4	1200	1200
New K-factor	36	36	36	36
New floor	838.6	852.4	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	9	9
	20	20
	16	16
History	45	45

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Chess South Africa (CSA)
Province
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	45	30	66.67	141.7	1197.9	1339.6
Standard	45	30	66.67	141.7	1197.9	1339.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1338.6	1352.4	1200	1200
2025-09-01	1338.6	1352.4	1200	1200
2025-08-01	1338.6	1352.4	1200	1200
2025-07-01	1338.6	1352.4	1200	1200
2025-06-01	1338.6	1352.4	1200	1200
2025-05-01	1338.6	1352.4	1200	1200
2025-04-01	1338.6	1352.4	1200	1200
2025-03-01	1338.6	1352.4	1200	1200
2025-02-01	1338.6	1352.4	1200	1200
2025-01-01	1338.6	1352.4	1200	1200
2024-12-01	1338.6	1352.4	1200	1200
2024-11-01	1338.6	1352.4	1200	1200
2024-10-01	1338.6	1352.4	1200	1200
2024-09-01	1338.6	1352.4	1200	1200
2024-08-01	1338.6	1352.4	1200	1200
2024-07-01	1338.6	1352.4	1200	1200
2024-06-01	1338.6	1352.4	1200	1200
2024-08-01	1338.6	1352.4	1200	1200
2024-04-01	1338.6	1352.4	1200	1200
2024-03-01	1338.6	1352.4	1200	1200
2024-02-01	1338.6	1352.4	1200	1200
2024-01-01	1338.6	1352.4	1200	1200
2023-12-01	1338.6	1352.4	1200	1200
2023-11-01	1338.6	1352.4	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	2023 Tshwane South School District CLOSED League Championship (U9)	2023-07-29	2023-07-29	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
2	Laerskool Constantiapark Open Chess Tournament 2023 (U10)	2023-02-18	2023-02-18	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
3	D4 Play Offs 2022 (U9)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
4	CP Ope 2022 (E)	2022-02-19	2022-02-19	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2022 Gauteng Interregion (U8 Open+Girls)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
6	2022 Tshwane Chess Open Registration Tournament (E)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	2021 Lardies Ope (F)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
8	2021 Etienne Lewis Closed Trials (U8 Open)	2021-09-24	2021-09-24	Standard	Nelson Mandela Bay (ENM)	7	7	4.5	Yes	Analysis
9	2021 Alekhine Open (F)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament D4 Play Offs 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-07-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Steyn, J (Joshua)				Opponent Kleynhans, M (Magnus)
2	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Lardies Ope
		date 2021-09-24	rnd 7	type Standard	result 1	date 2021-10-30	rnd 3	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Der Merwe, C (Caleb)
3	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Etienne Lewis Closed Trials
		date 2021-09-24	rnd 2	type Standard	result 0.5	date 2021-09-24	rnd 5	type Standard	result 1
		Opponent Minny, L (Lunka)				Opponent Zimbler, A (Alexander)

#	Games	Start				End
1	4	Tournament D4 Play Offs 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-07-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Steyn, J (Joshua)				Opponent Kleynhans, M (Magnus)
2	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Lardies Ope
		date 2021-09-24	rnd 7	type Standard	result 1	date 2021-10-30	rnd 3	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Der Merwe, C (Caleb)
3	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Etienne Lewis Closed Trials
		date 2021-09-24	rnd 2	type Standard	result 0.5	date 2021-09-24	rnd 5	type Standard	result 1
		Opponent Minny, L (Lunka)				Opponent Zimbler, A (Alexander)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament D4 Play Offs 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-07-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Steyn, J (Joshua)				Opponent Kleynhans, M (Magnus)
2	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Lardies Ope
		date 2021-09-24	rnd 7	type Standard	result 1	date 2021-10-30	rnd 3	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Der Merwe, C (Caleb)
3	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 5	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Wyk, A (Am�)

#	Games	Start				End
1	4	Tournament D4 Play Offs 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-07-30	rnd 4	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Steyn, J (Joshua)				Opponent Kleynhans, M (Magnus)
2	4	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2021 Lardies Ope
		date 2021-09-24	rnd 7	type Standard	result 1	date 2021-10-30	rnd 3	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Der Merwe, C (Caleb)
3	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 5	type Standard	result 1
		Opponent Erwee, HP (Hermanus Philipus)				Opponent Van Wyk, A (Am�)

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	Erwee ,HP (Hermanus Philipus)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Erwee ,HP (Hermanus Philipus)	3	1280.6	1422.3	3	1281.3	1422.3	0	0	0	0	0	0
2	Van Niekerk ,A (Arike)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Van Niekerk ,A (Arike)	3	1254.4	1112.7	3	1262.4	1112.7	0	0	0	0	0	0
3	Barkhuizen ,SJ (Simon Jurgens)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Barkhuizen ,SJ (Simon Jurgens)	3	1328.9	903.9	3	1325.7	903.9	0	0	0	0	0	0
4	Minny ,L (Lunka)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Minny ,L (Lunka)	2	1191.9	1404.4	2	1191.4	1404.4	0	0	0	0	0	0
5	Petzer ,W (Wilhelm)	2	2	425	2	2	425	0	0	0	0	0	0
5	Petzer ,W (Wilhelm)	2	1209.4	1634.4	2	1211.2	1634.4	0	0	0	0	0	0
6	Roberts ,F (Frans-Leigh)	2	1	0	2	1	0	0	0	0	0	0	0
6	Roberts ,F (Frans-Leigh)	2	842.3	842.3	2	862.6	842.3	0	0	0	0	0	0
7	Ottermann ,A (Ayla)	2	2	425	2	2	425	0	0	0	0	0	0
7	Ottermann ,A (Ayla)	2	1134.3	1559.3	2	1138	1559.3	0	0	0	0	0	0
8	Deysel ,E (Eli)	1	1	425	1	1	425	0	0	0	0	0	0
8	Deysel ,E (Eli)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Bornman ,R (Rousseau)	1	1	425	1	1	425	0	0	0	0	0	0
9	Bornman ,R (Rousseau)	1	1169.1	1594.1	1	1163.6	1594.1	0	0	0	0	0	0
10	Olivier ,F (Frederik)	1	1	425	1	1	425	0	0	0	0	0	0
10	Olivier ,F (Frederik)	1	1180.4	1605.4	1	1175.6	1605.4	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 Merwe, A (Aiden Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms