Chess South Africa Ratings Database

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Personal

Plaatjies, A (Ayren)

Chess SA id

1150193203

FIDE id

Date of birth

2015-09-22 (U12)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

42.7

Junior GPX Points

1257.6

Item	Main	Standard	Rapid	Blitz
Rating	1357.2	1388.2	1198.8	1200
Raw rating	1357.2	1388.2	1196.8	1200
Weighted rating	1316.5	1339.2	1198.8	1200
Weighted performance	1324.9	1380.2	0	0
Floor	857.2	888.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	132.5	126.8	166.6	165.8
Highest rating	1411.3 2024-04-01	1417.8 2024-04-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1357.2 2025-09-01	1388.2 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1327.6 2024-10-01	1362.7 2024-10-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1411.3 2024-04-01	1417.8 2024-04-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.2	0
New rating	1357.2	1388.2	1198.6	1200
Analysis
Rating	1357.2	1388.2	1198.8	1200
Raw rating	1357.2	1388.2	1196.8	1200
Weighted rating	1316.5	1339.2	1198.8
Weighted performance	1324.9	1380.2	0
K-factor	36	36	36	36
Floor	857.2	888.2	700	700
Max/Min rating change allowed	132.5	126.8	166.6	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	1357.2	1388.2	1196.8	1200
New weighted rating	1321.4	1345.3	1198.6	1200
New weighted performance	1324.4	1379.7	0	0
Temp new rating	1357.2	1388.2	1198.6	1200
Temp new rating +/-	0	0	-0.2	0
Final new rating +/-	0	0	-0.2	0
New rating	1357.2	1388.2	1198.6	1200
New K-factor	36	36	36	36
New floor	857.2	888.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	52	36	16
	25	25	0
	0	0	0
	0	0	0
	0	0	0
History	77	61	16

Games since
	Main 77	Standard 61		Rapid 16		Blitz 0
Gender	Male
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2593		820		223
Male	2105		621		170
U12	367		126		37
U12 Male	270		87		24
Standard
	RSA		Province		Region
Overall	2176		590		179
Male	1779		453		135
U12	286		82		31
U12 Male	210		58		21
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	52	25	48.08	-16.3	1325.4	1309
Standard	36	21	58.33	70.8	1306.2	1377
Rapid	16	4	25	-212.5	1368.6	1156.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	77	40.5	52.6	22.1	1316.5	1338.5
Standard	61	36.5	59.84	83.6	1302.8	1386.4
Rapid	16	4	25	-212.5	1368.6	1156.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1357.2	1388.2	1196.8	1200
2025-09-01	1357.2	1388.2	1196.8	1200
2025-08-01	1305.2	1339.6	1196.8	1200
2025-07-01	1309.2	1339.6	1199.4	1200
2025-06-01	1309.2	1339.6	1199.4	1200
2025-05-01	1300.2	1339.6	1199.2	1200
2025-04-01	1310.3	1362.7	1196.7	1200
2025-03-01	1307.7	1330.6	1196.6	1200
2025-02-01	1327.6	1337	1200	1200
2025-01-01	1327.6	1337	1200	1200
2024-12-01	1327.6	1337	1200	1200
2024-11-01	1327.6	1337	1200	1200
2024-10-01	1327.6	1337	1200	1200
2024-09-01	1327.6	1337	1200	1200
2024-08-01	1327.6	1337	1200	1200
2024-07-01	1327.6	1337	1200	1200
2024-06-01	1327.6	1337	1200	1200
2024-08-01	1316.5	1337.7	1200	1200
2024-04-01	1257.6	1272.2	1200	1200
2024-03-01	1222.6	1226.8	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	5	4	Yes	Analysis
2	2025 Eden Open & Women's Tournament (U10)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	2	Yes	Analysis
3	Knysna Oyster Festival Rapid 2025 (Scholars)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	5	1	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
5	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	2.5	Yes	Analysis
6	Oudtshoorn Rapid 2025 (Open)	2025-03-28	2025-03-28	Rapid	Eden (WEG)	6	6	2	Yes	Analysis
7	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis
8	Oudussa Trials 2025 (U11 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
9	Loerie Skaaktoernooi 2025	2025-02-22	2025-02-22	Rapid	Eden (WEG)	5	5	1	Yes	Analysis
10	Oudussa Trials 2 2025 (U11 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	5	4	Yes	Analysis
2	2025 Eden Open & Women's Tournament (U10)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	2	Yes	Analysis
3	Knysna Oyster Festival Rapid 2025 (Scholars)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	5	1	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
5	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	2.5	Yes	Analysis
6	Oudtshoorn Rapid 2025 (Open)	2025-03-28	2025-03-28	Rapid	Eden (WEG)	6	6	2	Yes	Analysis
7	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis
8	Oudussa Trials 2025 (U11 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
9	Loerie Skaaktoernooi 2025	2025-02-22	2025-02-22	Rapid	Eden (WEG)	5	5	1	Yes	Analysis
10	Oudussa Trials 2 2025 (U11 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
11	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
12	Eden Chess Trials 2 2024 (U10)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
13	Eden School Chess Trials 1 2024 (U9 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
14	OUDUSSA Trials 2 2024 (U7+U9 Boys+Girls)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	4	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Groenewald, J (Janu)				Opponent Van Den Berg, T (Teagan)
2	4	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Frans, L (Lyle)				Opponent Muza, B (Benjamin)
3	4	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Rabie, M (Mizelle)				Opponent Fritz, U (Ulysse)

#	Games	Start				End
1	6	Tournament Western Cape Schools Individual Championship 2025				Tournament Eden Top Schools 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Titus, M (Michael John)				Opponent Hartzenberg, J (Joshua)
2	5	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Groenewald, J (Janu)				Opponent Van Den Berg, T (Teagan)
3	4	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Frans, L (Lyle)				Opponent Muza, B (Benjamin)

#	Games	Start				End
1	1	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 2	type Rapid	result 1	date 2025-07-12	rnd 2	type Rapid	result 1
		Opponent Van Der Merwe, F (Finley)				Opponent Van Der Merwe, F (Finley)
2	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 5	type Rapid	result 1	date 2025-03-28	rnd 5	type Rapid	result 1
		Opponent Matheus, A (Avril)				Opponent Matheus, A (Avril)
3	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 3	type Rapid	result 1	date 2025-03-28	rnd 3	type Rapid	result 1
		Opponent Gelderblom, J (Jayden)				Opponent Gelderblom, J (Jayden)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Groenewald, J (Janu)				Opponent Van Den Berg, T (Teagan)
2	4	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Rabie, M (Mizelle)				Opponent Fritz, U (Ulysse)
3	3	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Pietersen, L (Linsey)				Opponent Hartzenberg, J (Joshua)

#	Games	Start				End
1	6	Tournament Western Cape Schools Individual Championship 2025				Tournament Eden Top Schools 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Titus, M (Michael John)				Opponent Hartzenberg, J (Joshua)
2	5	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Groenewald, J (Janu)				Opponent Van Den Berg, T (Teagan)
3	4	Tournament Eden Chess Trials 2 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Rabie, M (Mizelle)				Opponent Fritz, U (Ulysse)

#	Games	Start				End
1	1	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 2	type Rapid	result 1	date 2025-07-12	rnd 2	type Rapid	result 1
		Opponent Van Der Merwe, F (Finley)				Opponent Van Der Merwe, F (Finley)
2	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 5	type Rapid	result 1	date 2025-03-28	rnd 5	type Rapid	result 1
		Opponent Matheus, A (Avril)				Opponent Matheus, A (Avril)
3	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 3	type Rapid	result 1	date 2025-03-28	rnd 3	type Rapid	result 1
		Opponent Gelderblom, J (Jayden)				Opponent Gelderblom, J (Jayden)

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	Rabie ,M (Mizelle)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Rabie ,M (Mizelle)	3	1291.7	1150	3	1294.1	1150	0	0	0	0	0	0
2	Van Den Berg ,T (Teagan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	Van Den Berg ,T (Teagan)	2	1347.4	1559.9	2	1359.5	1559.9	0	0	0	0	0	0
3	Boamah ,J (Jack)	2	1	0	2	1	0	0	0	0	0	0	0
3	Boamah ,J (Jack)	2	1220.8	1220.8	2	1224.6	1220.8	0	0	0	0	0	0
4	Etsala-Kourou ,J (Josu�)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Etsala-Kourou ,J (Josu�)	2	1282.9	857.9	2	1239.3	857.9	0	0	0	0	0	0
5	Fritz ,U (Ulysse)	2	1	0	2	1	0	0	0	0	0	0	0
5	Fritz ,U (Ulysse)	2	1462.3	1462.3	2	1466	1462.3	0	0	0	0	0	0
6	Muza ,B (Benjamin)	2	2	425	2	2	425	0	0	0	0	0	0
6	Muza ,B (Benjamin)	2	1391.3	1816.3	2	1382.1	1816.3	0	0	0	0	0	0
7	De Villiers ,A (Azalea)	2	2	425	2	2	425	0	0	0	0	0	0
7	De Villiers ,A (Azalea)	2	1072.1	1497.1	2	1057	1497.1	0	0	0	0	0	0
8	Verster ,J (Juan Marais)	2	1	0	2	1	0	0	0	0	0	0	0
8	Verster ,J (Juan Marais)	2	1385.3	1385.3	2	1380.9	1385.3	0	0	0	0	0	0
9	Petersen ,B (Bryson)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Petersen ,B (Bryson)	2	1425.8	1000.8	1	1381.6	1000.8	1	1194.8	1000.8	0	0	0
10	Opperman ,C (Caden)	2	1	0	1	1	425	1	0	-425	0	0	0
10	Opperman ,C (Caden)	2	1517.2	1517.2	1	1510	1942.2	1	1267.7	1092.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Plaatjies, A (Ayren)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms