Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, A (Adriaan)

Chess SA id

1100115348

FIDE id

Date of birth

2010-06-21 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-04-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1244	1204.2	1290	1200
Raw rating	1244	1204.2	1290	1200
Weighted rating	1243.9	1204.1	1290	1200
Weighted performance	794.3	684.7	0	0
Floor	832.2	801.8	790	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.7	164.8	145.9	165.8
Highest rating	1336.3 2019-06-01	1329.5 2019-06-01	1396.3 2022-05-01	1200 2018-10-01
Highest raw rating	1332.2 2023-03-01	1301.8 2023-03-01	1290 2024-02-01	1200 2024-02-01
Highest weighted rating	1332.2 2023-04-01	1301.8 2023-04-01	1290 2024-05-01	1200 2018-10-01
Highest weighted performance	1336.3 2019-06-01	1329.5 2019-06-01	1396.3 2022-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1244	1204.2	1290	1200
Analysis
Rating	1244	1204.2	1290	1200
Raw rating	1244	1204.2	1290	1200
Weighted rating	1243.9	1204.1	1290
Weighted performance	794.3	684.7	0
K-factor	36	36	36	36
Floor	832.2	801.8	790	700
Max/Min rating change allowed	155.7	164.8	145.9	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	1244	1204.2	1290	1200
New weighted rating	1244	1204.1	1290	1200
New weighted performance	793.8	684.3	0	0
Temp new rating	1244	1204.2	1290	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1244	1204.2	1290	1200
New K-factor	36	36	36	36
New floor	832.2	801.8	790	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	14	14	0
	13	0	13
	0	0	0
History	37	24	13

Games since
	Main 0	Standard 0		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	37	23.5	63.51	114.9	1176	1290.9
Standard	24	14	58.33	70.8	1171.8	1242.6
Rapid	13	9.5	73.08	196.2	1183.9	1380
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1244	1204.2	1290	1200
2025-09-01	1244	1204.2	1290	1200
2025-08-01	1244	1204.2	1290	1200
2025-07-01	1244	1204.2	1290	1200
2025-06-01	1244	1204.2	1290	1200
2025-05-01	1244	1204.2	1290	1200
2025-04-01	1244	1204.2	1290	1200
2025-03-01	1244	1204.2	1290	1200
2025-02-01	1244	1204.2	1290	1200
2025-01-01	1243.8	1203.9	1290	1200
2024-12-01	1243.8	1203.9	1290	1200
2024-11-01	1243.8	1203.9	1290	1200
2024-10-01	1243.8	1203.9	1290	1200
2024-09-01	1243.8	1203.9	1290	1200
2024-08-01	1243.8	1203.9	1290	1200
2024-07-01	1243.8	1203.9	1290	1200
2024-06-01	1243.8	1203.9	1290	1200
2024-08-01	1243.8	1203.9	1290	1200
2024-04-01	1243.8	1203.9	1290	1200
2024-03-01	1243.8	1203.9	1290	1200
2024-02-01	1243.8	1203.9	1290	1200
2024-01-01	1243.8	1203.9	1290	1200
2023-12-01	1243.8	1203.9	1290	1200
2023-11-01	1243.8	1203.9	1290	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 Individual Championships (U13 Open)	2023-04-22	2023-04-22	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	Chris Greyling Open Tournament 2023 (C)	2023-03-21	2023-03-21	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
3	Laerskool Constantiapark Open Chess Tournament 2023 (U14)	2023-02-18	2023-02-18	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
4	RMS Swiss For Rating of Players 2022 (U13)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	6	Yes	Analysis
5	D4 Individuals 2022 (U13 Open)	2022-04-23	2022-04-23	Rapid	Tshwane (GTP)	7	7	3.5	Yes	Analysis
6	2019 RMS Laerskole (U9)	2019-06-01	2019-06-01	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
7	2019 Lubowski Open Tournament (E)	2019-05-11	2019-05-11	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament D4 Individuals 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-04-23	rnd 6	type Rapid	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Matthee, WD (William)				Opponent Tennant, N (Nathan)
2	6	Tournament 2019 Lubowski Open Tournament				Tournament 2019 RMS Laerskole
		date 2019-05-11	rnd 5	type Standard	result 1	date 2019-06-01	rnd 5	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Ras, JN (Nicolaas)
3	2	Tournament Chris Greyling Open Tournament 2023				Tournament Chris Greyling Open Tournament 2023
		date 2023-03-21	rnd 4	type Standard	result 1	date 2023-03-21	rnd 5	type Standard	result 1
		Opponent Du Bruyn, D (Dylan)				Opponent Viljoen, A (Amber)

#	Games	Start				End
1	8	Tournament 2019 Lubowski Open Tournament				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2019-05-11	rnd 5	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Veldman, C (Chantane)				Opponent Tennant, N (Nathan)
2	2	Tournament Chris Greyling Open Tournament 2023				Tournament Chris Greyling Open Tournament 2023
		date 2023-03-21	rnd 4	type Standard	result 1	date 2023-03-21	rnd 5	type Standard	result 1
		Opponent Du Bruyn, D (Dylan)				Opponent Viljoen, A (Amber)
3	2	Tournament Laerskool Constantiapark Open Chess Tournament 2023				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2023-02-18	rnd 4	type Standard	result 1	date 2023-02-18	rnd 5	type Standard	result 1
		Opponent Jacobs, AE (Alyssa)				Opponent Coetzee, M (Marko)

#	Games	Start				End
1	8	Tournament D4 Individuals 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-04-23	rnd 6	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Matthee, WD (William)				Opponent Janssen, A (Alec)
2	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 3	type Rapid	result 1	date 2022-04-23	rnd 4	type Rapid	result 1
		Opponent Makgotlwe, P (Phenyo)				Opponent De Wet, L (Lambert Hugo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament RMS Swiss For Rating of Players 2022				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent El Qouar, T (Tamir)				Opponent Tennant, N (Nathan)
2	3	Tournament 2019 RMS Laerskole				Tournament 2019 RMS Laerskole
		date 2019-06-01	rnd 3	type Standard	result 1	date 2019-06-01	rnd 5	type Standard	result 1
		Opponent Labuschagne, M (Melindie)				Opponent Ras, JN (Nicolaas)
3	2	Tournament Chris Greyling Open Tournament 2023				Tournament Chris Greyling Open Tournament 2023
		date 2023-03-21	rnd 4	type Standard	result 1	date 2023-03-21	rnd 5	type Standard	result 1
		Opponent Du Bruyn, D (Dylan)				Opponent Viljoen, A (Amber)

#	Games	Start				End
1	5	Tournament 2019 RMS Laerskole				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2019-06-01	rnd 3	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Labuschagne, M (Melindie)				Opponent Tennant, N (Nathan)
2	2	Tournament Chris Greyling Open Tournament 2023				Tournament Chris Greyling Open Tournament 2023
		date 2023-03-21	rnd 4	type Standard	result 1	date 2023-03-21	rnd 5	type Standard	result 1
		Opponent Du Bruyn, D (Dylan)				Opponent Viljoen, A (Amber)
3	2	Tournament Laerskool Constantiapark Open Chess Tournament 2023				Tournament Laerskool Constantiapark Open Chess Tournament 2023
		date 2023-02-18	rnd 4	type Standard	result 1	date 2023-02-18	rnd 5	type Standard	result 1
		Opponent Jacobs, AE (Alyssa)				Opponent Coetzee, M (Marko)

#	Games	Start				End
1	6	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent El Qouar, T (Tamir)				Opponent Janssen, A (Alec)
2	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 3	type Rapid	result 1	date 2022-04-23	rnd 4	type Rapid	result 1
		Opponent Makgotlwe, P (Phenyo)				Opponent De Wet, L (Lambert Hugo)
3	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 6	type Rapid	result 1	date 2022-04-23	rnd 6	type Rapid	result 1
		Opponent Matthee, WD (William)				Opponent Matthee, WD (William)

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	De Wet ,L (Lambert Hugo)	2	1	0	1	0	-425	1	1	425	0	0	0
1	De Wet ,L (Lambert Hugo)	2	1195.2	1195.2	1	1200	770.2	1	1200	1620.2	0	0	0
2	Labuschagne ,M (Melindie)	2	2	425	1	1	425	1	1	425	0	0	0
2	Labuschagne ,M (Melindie)	2	1189.9	1614.9	1	1171.6	1614.9	1	1200	1614.9	0	0	0
3	Veldman ,C (Chantane)	1	1	425	1	1	425	0	0	0	0	0	0
3	Veldman ,C (Chantane)	1	1021.8	1446.8	1	1012.5	1446.8	0	0	0	0	0	0
4	Acker ,S (Steven)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Acker ,S (Steven)	1	1219.3	794.3	1	1222	794.3	0	0	0	0	0	0
5	Viljoen ,A (Amber)	1	1	425	1	1	425	0	0	0	0	0	0
5	Viljoen ,A (Amber)	1	1163.3	1588.3	1	1161.5	1588.3	0	0	0	0	0	0
6	Kotze ,S (Seth)	1	1	425	1	1	425	0	0	0	0	0	0
6	Kotze ,S (Seth)	1	1103.1	1528.1	1	1086.8	1528.1	0	0	0	0	0	0
7	Coetzee ,M (Marko)	1	1	425	1	1	425	0	0	0	0	0	0
7	Coetzee ,M (Marko)	1	1268.5	1693.5	1	1261.7	1693.5	0	0	0	0	0	0
8	Zondagh ,Z (Zea)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Zondagh ,Z (Zea)	1	982.6	982.6	1	969.8	982.6	0	0	0	0	0	0
9	Meades ,RA (Ruben Abraham)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Meades ,RA (Ruben Abraham)	1	1369.8	944.8	1	1358.2	944.8	0	0	0	0	0	0
10	Chathury ,N (Nihal)	1	1	425	1	1	425	0	0	0	0	0	0
10	Chathury ,N (Nihal)	1	1105	1530	1	1100.4	1530	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Van Der Merwe, A (Adriaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms