Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Plessis, A (Arno)

Chess SA id

175082822

FIDE id

Date of birth

1975-02-10 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-06-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1314.2	1323.6	758.3	651.1
Raw rating	1314.2	1323.6	758.3	651.1
Weighted rating	1313.2	1323.4	758.3	651.1
Weighted performance	922.1	963.5	0	0
Floor	828.1	824.9	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	140.9	139	311.1	362.5
Highest rating	1355.8 2022-12-01	1340.4 2022-12-01	1208.6 2021-09-01	1200 2020-01-01
Highest raw rating	1328.1 2023-01-01	1324.9 2024-02-01	761.9 2021-10-01	651.1 2024-02-01
Highest weighted rating	1312.7 2025-08-01	1324.9 2025-03-01	761.9 2024-11-01	651.1 2024-11-01
Highest weighted performance	1355.8 2022-12-01	1340.4 2022-12-01	1208.6 2021-09-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1314.2	1323.6	758.3	651.1
Analysis
Rating	1314.2	1323.6	758.3	651.1
Raw rating	1314.2	1323.6	758.3	651.1
Weighted rating	1313.2	1323.4	758.3
Weighted performance	922.1	963.5	0
K-factor	36	36	40	40
Floor	828.1	824.9	500	500
Max/Min rating change allowed	140.9	139	311.1	362.5
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	1314.2	1323.6	758.3	651.1
New weighted rating	1313.4	1323.4	758.3	651.1
New weighted performance	921.6	963	0	0
Temp new rating	1314.2	1323.6	758.3	651.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1314.2	1323.6	758.3	651.1
New K-factor	36	36	40	40
New floor	828.1	824.9	500	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	5	5	0	0
	16	0	0	16
	25	20	5	0
	7	0	7	0
History	96	56	24	16

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Eden (WEG)
Province	Western Cape (WC)
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	74	31	41.89	-68.9	1354.4	1285.5
Standard	46	22.5	48.91	-9.2	1363	1353.7
Rapid	12	5.5	45.83	-35.4	1249.7	1214.3
Blitz	16	3	18.75	-265.6	1408.2	1142.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1314.2	1323.6	758.3	651.1
2025-09-01	1314.2	1323.6	758.3	651.1
2025-08-01	1314.2	1323.6	758.3	651.1
2025-07-01	1314.2	1323.6	758.3	651.1
2025-06-01	1314.2	1323.6	758.3	651.1
2025-05-01	1314.2	1323.6	758.3	651.1
2025-04-01	1314.2	1323.6	758.3	651.1
2025-03-01	1314.2	1323.6	758.3	651.1
2025-02-01	1314.2	1323.5	758.3	651.1
2025-01-01	1314.2	1322.4	758.3	651.1
2024-12-01	1314.2	1322.4	758.3	651.1
2024-11-01	1314.2	1322.4	758.3	651.1
2024-10-01	1314.2	1322.4	758.3	651.1
2024-09-01	1314.2	1322.4	758.3	651.1
2024-08-01	1314.2	1322.4	758.3	651.1
2024-07-01	1314.2	1322.4	758.3	651.1
2024-06-01	1306.1	1324.9	758.3	651.1
2024-08-01	1306.1	1324.9	758.3	651.1
2024-04-01	1306.1	1324.9	758.3	651.1
2024-03-01	1306.1	1324.9	758.3	651.1
2024-02-01	1306.1	1324.9	758.3	651.1
2024-01-01	1306.1	1324.9	758.3	651.1
2023-12-01	1306.1	1324.9	758.3	651.1
2023-11-01	1306.1	1324.9	758.3	651.1

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	Eden Open 2024 (A)	2024-06-22	2024-06-22	Standard	Eden (WEG)	5	5	2	Yes	Analysis
2	Inter Club Blitz 2 2023 (Open)	2023-06-21	2023-06-21	Blitz	Eden (WEG)	10	8	1	Yes	Analysis
3	Inter Club Blitz 1 2023	2023-05-24	2023-05-24	Blitz	Eden (WEG)	10	8	2	Yes	Analysis
4	George Open 2022 (B)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	4	3	Yes	Analysis
5	Mossel Bay Open 2022 (A)	2022-09-30	2022-10-02	Standard	Eden (WEG)	6	5	2.5	Yes	Analysis
6	Pacaltsdorp Chess Club 2022 (A)	2022-08-27	2022-08-27	Rapid	Eden (WEG)	6	5	0	Yes	Analysis
7	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	4.5	Yes	Analysis
8	Eden Chess League 2021 (2nd Division)	2021-09-18	2021-09-18	Rapid	Eden (WEG)	7	7	5.5	Yes	Analysis
9	George Open Chess Tournament 2019 (B)	2019-11-30	2019-12-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
10	Mossel Bay Chess Open 2019 (B)	2019-10-04	2019-10-05	Standard	Eden (WEG)	6	6	4	Yes	Analysis
11	2019 Boardwalk Pearson Open (Open)	2019-03-28	2019-03-31	Standard	Nelson Mandela Bay (ENM)	9	9	3.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 1	type Rapid	result 1	date 2021-09-18	rnd 5	type Rapid	result 0.5
		Opponent Kammies, E (Elmo)				Opponent Sheldon, A (Ackim)
2	4	Tournament Mossel Bay Chess Open 2019				Tournament George Open Chess Tournament 2019
		date 2019-10-05	rnd 4	type Standard	result 1	date 2019-11-30	rnd 1	type Standard	result 1
		Opponent Jacobs, M (Menwill)				Opponent Mostert, J (Jan-Abraham)
3	3	Tournament Mossel Bay Open 2022				Tournament Mossel Bay Open 2022
		date 2022-10-01	rnd 3	type Standard	result 1	date 2022-10-02	rnd 5	type Standard	result 1
		Opponent Claassen, R (Raynier)				Opponent Wilson, RP (Reginald)

#	Games	Start				End
1	4	Tournament Mossel Bay Chess Open 2019				Tournament George Open Chess Tournament 2019
		date 2019-10-05	rnd 4	type Standard	result 1	date 2019-11-30	rnd 1	type Standard	result 1
		Opponent Jacobs, M (Menwill)				Opponent Mostert, J (Jan-Abraham)
2	3	Tournament Mossel Bay Open 2022				Tournament Mossel Bay Open 2022
		date 2022-10-01	rnd 3	type Standard	result 1	date 2022-10-02	rnd 5	type Standard	result 1
		Opponent Claassen, R (Raynier)				Opponent Wilson, RP (Reginald)
3	3	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-15	rnd 8	type Standard	result 1	date 2022-07-16	rnd 10	type Standard	result 0.5
		Opponent Jurgens, C (C)				Opponent Mahadeo, S (Shreeya)

#	Games	Start				End
1	5	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 1	type Rapid	result 1	date 2021-09-18	rnd 5	type Rapid	result 0.5
		Opponent Kammies, E (Elmo)				Opponent Sheldon, A (Ackim)
2	1	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 7	type Rapid	result 1	date 2021-09-18	rnd 7	type Rapid	result 1
		Opponent Cornforth, K (Kayleigh)				Opponent Cornforth, K (Kayleigh)

#	Games	Start				End
1	1	Tournament Inter Club Blitz 2 2023				Tournament Inter Club Blitz 2 2023
		date 2023-06-21	rnd 5	type Blitz	result 1	date 2023-06-21	rnd 5	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
2	1	Tournament Inter Club Blitz 1 2023				Tournament Inter Club Blitz 1 2023
		date 2023-05-24	rnd 10	type Blitz	result 1	date 2023-05-24	rnd 10	type Blitz	result 1
		Opponent Van Staden, P (Pearson)				Opponent Van Staden, P (Pearson)
3	1	Tournament Inter Club Blitz 1 2023				Tournament Inter Club Blitz 1 2023
		date 2023-05-24	rnd 4	type Blitz	result 1	date 2023-05-24	rnd 4	type Blitz	result 1
		Opponent Oktober, D (Dimitri)				Opponent Oktober, D (Dimitri)

#	Games	Start				End
1	4	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 1	type Rapid	result 1	date 2021-09-18	rnd 4	type Rapid	result 1
		Opponent Kammies, E (Elmo)				Opponent Potts, M (Markwin)
2	4	Tournament Mossel Bay Chess Open 2019				Tournament George Open Chess Tournament 2019
		date 2019-10-05	rnd 4	type Standard	result 1	date 2019-11-30	rnd 1	type Standard	result 1
		Opponent Jacobs, M (Menwill)				Opponent Mostert, J (Jan-Abraham)
3	2	Tournament George Open 2022				Tournament George Open 2022
		date 2022-12-03	rnd 2	type Standard	result 1	date 2022-12-03	rnd 3	type Standard	result 1
		Opponent Botha, C (Chris)				Opponent Jafta, S (Shaunley)

#	Games	Start				End
1	4	Tournament Mossel Bay Chess Open 2019				Tournament George Open Chess Tournament 2019
		date 2019-10-05	rnd 4	type Standard	result 1	date 2019-11-30	rnd 1	type Standard	result 1
		Opponent Jacobs, M (Menwill)				Opponent Mostert, J (Jan-Abraham)
2	2	Tournament George Open 2022				Tournament George Open 2022
		date 2022-12-03	rnd 2	type Standard	result 1	date 2022-12-03	rnd 3	type Standard	result 1
		Opponent Botha, C (Chris)				Opponent Jafta, S (Shaunley)
3	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-15	rnd 8	type Standard	result 1	date 2022-07-16	rnd 9	type Standard	result 1
		Opponent Jurgens, C (C)				Opponent Blankenberg, T (Taylon)

#	Games	Start				End
1	4	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 1	type Rapid	result 1	date 2021-09-18	rnd 4	type Rapid	result 1
		Opponent Kammies, E (Elmo)				Opponent Potts, M (Markwin)
2	1	Tournament Eden Chess League 2021				Tournament Eden Chess League 2021
		date 2021-09-18	rnd 7	type Rapid	result 1	date 2021-09-18	rnd 7	type Rapid	result 1
		Opponent Cornforth, K (Kayleigh)				Opponent Cornforth, K (Kayleigh)

#	Games	Start				End
1	1	Tournament Inter Club Blitz 2 2023				Tournament Inter Club Blitz 2 2023
		date 2023-06-21	rnd 5	type Blitz	result 1	date 2023-06-21	rnd 5	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
2	1	Tournament Inter Club Blitz 1 2023				Tournament Inter Club Blitz 1 2023
		date 2023-05-24	rnd 10	type Blitz	result 1	date 2023-05-24	rnd 10	type Blitz	result 1
		Opponent Van Staden, P (Pearson)				Opponent Van Staden, P (Pearson)
3	1	Tournament Inter Club Blitz 1 2023				Tournament Inter Club Blitz 1 2023
		date 2023-05-24	rnd 4	type Blitz	result 1	date 2023-05-24	rnd 4	type Blitz	result 1
		Opponent Oktober, D (Dimitri)				Opponent Oktober, D (Dimitri)

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	Kerspuy ,G (Gurswin)	4	1	-212.5	1	1	425	1	0	-425	2	0	-425
1	Kerspuy ,G (Gurswin)	4	1240.4	1027.9	1	1253.4	1665.4	1	1186.8	815.4	2	1085.3	815.4
2	Daniels ,J (Jerome)	4	0	-425	0	0	0	0	0	0	4	0	-425
2	Daniels ,J (Jerome)	4	1475.4	1050.4	0	0	0	0	0	0	4	1281.2	1050.4
3	Du Plessis ,A (Arno)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Du Plessis ,A (Arno)	3	1417.7	992.7	2	1386.1	992.7	1	1218.7	992.7	0	0	0
4	Lewis ,M (Mark)	3	1	-141.7	1	1	425	0	0	0	2	0	-425
4	Lewis ,M (Mark)	3	1279.7	1138	1	1305.1	1704.7	0	0	0	2	835.2	854.7
5	Adams ,L (Leonard)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Adams ,L (Leonard)	2	1350.7	1138.2	2	1330.9	1138.2	0	0	0	0	0	0
6	Swart ,S (Sune)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Swart ,S (Sune)	2	1470.1	1682.6	2	1464.8	1682.6	0	0	0	0	0	0
7	Miggels ,A (Alaric)	2	1	0	1	1	425	1	0	-425	0	0	0
7	Miggels ,A (Alaric)	2	1204.8	1204.8	1	1178.4	1629.8	1	500	779.8	0	0	0
8	Petersen ,S (Shenwin)	2	1	0	0	0	0	0	0	0	2	1	0
8	Petersen ,S (Shenwin)	2	1437	1437	0	0	0	0	0	0	2	1003.8	1437
9	Oktober ,D (Dimitri)	2	1	0	0	0	0	0	0	0	2	1	0
9	Oktober ,D (Dimitri)	2	1197.4	1197.4	0	0	0	0	0	0	2	1230.4	1197.4
10	Van Staden ,P (Pearson)	2	1	0	0	0	0	0	0	0	2	1	0
10	Van Staden ,P (Pearson)	2	1663.2	1663.2	0	0	0	0	0	0	2	1200	1663.2

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Du Plessis, A (Arno)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms