Chess South Africa Ratings Database

PLAYER PAGE

Personal

Plaatjies, J (Joy)

Chess SA id

2120136819

FIDE id

Date of birth

2012-05-02 (U14)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1157.4

Item	Main	Standard	Rapid	Blitz
Rating	1122.9	1118.9	1200	1200
Raw rating	1122.9	1118.9	1200	1200
Weighted rating	1081.5	1061.6	1200	1200
Weighted performance	1099.6	1102	0	0
Floor	704.2	707.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	185.1	186.1	165.8	165.8
Highest rating	1210.7 2023-02-01	1209.5 2023-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1204.2 2023-03-01	1207.2 2023-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1204.2 2018-10-01	1207.2 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1210.7 2023-02-01	1209.5 2023-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1122.9	1118.9	1200	1200
Analysis
Rating	1122.9	1118.9	1200	1200
Raw rating	1122.9	1118.9	1200	1200
Weighted rating	1081.5	1061.6	1200
Weighted performance	1099.6	1102	0
K-factor	36	36	36	36
Floor	704.2	707.2	700	700
Max/Min rating change allowed	185.1	186.1	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	1122.9	1118.9	1200	1200
New weighted rating	1084.4	1065.9	1200	1200
New weighted performance	1092.9	1095.3	0	0
Temp new rating	1122.9	1118.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1122.9	1118.9	1200	1200
New K-factor	36	36	36	36
New floor	704.2	707.2	700	700

Item	Main	Standard
	0	0
	27	27
	18	18
	21	21
	4	4
	0	0
History	70	70

Games since
	Main 45	Standard 45		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4444		1499		397
Female	1137		457		135
U14	887		299		67
U14 Female	268		114		27
Standard
	RSA		Province		Region
Overall	4421		1244		439
Female	1138		406		157
U14	883		238		75
U14 Female	275		99		31
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-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	27	10	37.04	-110.2	1236.7	1126.5
Standard	27	10	37.04	-110.2	1236.7	1126.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	70	26	37.14	-109.3	1199.7	1090.4
Standard	70	26	37.14	-109.3	1199.7	1090.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1122.9	1118.9	1200	1200
2025-09-30	1122.9	1118.9	1200	1200
2025-09-01	1122.9	1118.9	1200	1200
2025-08-01	1077.2	1054.8	1200	1200
2025-07-01	1077.2	1054.8	1200	1200
2025-06-01	1077.2	1054.8	1200	1200
2025-05-01	1077.2	1054.8	1200	1200
2025-04-01	1097.3	1083.8	1200	1200
2025-03-01	1091.6	1073.6	1200	1200
2025-02-01	1079	1055.3	1200	1200
2025-01-01	1035.8	1002.7	1200	1200
2024-12-01	1035.8	1002.7	1200	1200
2024-11-01	1035.8	1002.7	1200	1200
2024-10-01	1035.8	1002.7	1200	1200
2024-09-01	1035.8	1002.7	1200	1200
2024-08-01	1035.8	1002.7	1200	1200
2024-07-01	1035.8	1002.7	1200	1200
2024-09-01	1035.8	1002.7	1200	1200
2024-05-01	1035.8	1002.7	1200	1200
2024-04-01	1158.3	1151.4	1200	1200
2024-03-01	1175	1172.3	1200	1200
2024-02-01	1155.4	1148.5	1200	1200
2024-01-01	1155.4	1148.5	1200	1200
2023-12-01	1155.4	1148.5	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	4	1	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U13 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Eden Chess Trials 2 2025 (U14)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	2	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	Mossel Bay Schools Trials 2 2025 (U13 Girls)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	4	2	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	4	1	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U13 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Eden Chess Trials 2 2025 (U14)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	2	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	Mossel Bay Schools Trials 2 2025 (U13 Girls)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	4	2	Yes	Analysis
6	Eden Chess Trials 2 2024 (U14)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	8	0	Yes	Analysis
7	Eden School Chess Trials 1 2024 (U13 Girls)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	2	Yes	Analysis
8	Mossel Bay Schools Trials 2 2024 (U13)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	Fountains Mall Open 2023 (Development)	2023-05-13	2023-05-13	Standard	Sarah Baartman (ESB)	6	6	2	Yes	Analysis
10	Eden Trails 1 2023 (U11 Girls)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	2	Yes	Analysis
11	Mossel Bay Schools Trials 2 2023 (U11 Girls)	2023-02-18	2023-02-18	Standard	Eden (WEG)	5	5	3	Yes	Analysis
12	Mossel Bay Schools Trials 1 2023 (U11 Girls)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	3	Yes	Analysis
13	Mosselbaai Skole Skaak Proewe 1 2022 (U11 Girls)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Nuade, S (Shamila)				Opponent Oosthuizen, N (Nikita)
2	3	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 0.5	date 2023-03-11	rnd 3	type Standard	result 0.5
		Opponent Manuel, T (Tehmia)				Opponent Botha, G (Galeren)
3	3	Tournament Mossel Bay Schools Trials 2 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Hlabisa, K (Kaylene)				Opponent Zwane, O (Othello)

#	Games	Start				End
1	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Nuade, S (Shamila)				Opponent Oosthuizen, N (Nikita)
2	3	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 0.5	date 2023-03-11	rnd 3	type Standard	result 0.5
		Opponent Manuel, T (Tehmia)				Opponent Botha, G (Galeren)
3	3	Tournament Mossel Bay Schools Trials 2 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Hlabisa, K (Kaylene)				Opponent Zwane, O (Othello)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Nuade, S (Shamila)				Opponent Oosthuizen, N (Nikita)
2	3	Tournament Mossel Bay Schools Trials 2 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Hlabisa, K (Kaylene)				Opponent Zwane, O (Othello)
3	2	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Moodie, A (Ava)				Opponent Armoed, R (Rashnick)

#	Games	Start				End
1	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Nuade, S (Shamila)				Opponent Oosthuizen, N (Nikita)
2	3	Tournament Mossel Bay Schools Trials 2 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Hlabisa, K (Kaylene)				Opponent Zwane, O (Othello)
3	2	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Moodie, A (Ava)				Opponent Armoed, R (Rashnick)

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	Plaatjies ,A (Akechia)	2	2	425	2	2	425	0	0	0	0	0	0
1	Plaatjies ,A (Akechia)	2	1181.9	1606.9	2	1178.2	1606.9	0	0	0	0	0	0
2	Gelderbloem ,Q (Quelin)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Gelderbloem ,Q (Quelin)	2	1134.1	709.1	2	1125.8	709.1	0	0	0	0	0	0
3	Taylor ,D (Denashkia)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Taylor ,D (Denashkia)	2	1202.7	777.7	2	1203.4	777.7	0	0	0	0	0	0
4	Van Rooyen ,N (Niche-Leigh)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Van Rooyen ,N (Niche-Leigh)	2	1208.7	783.7	2	1200	783.7	0	0	0	0	0	0
5	Gumenge ,U (Uyathandwa)	2	1	0	2	1	0	0	0	0	0	0	0
5	Gumenge ,U (Uyathandwa)	2	1204.4	1204.4	2	1205.2	1204.4	0	0	0	0	0	0
6	Fillies ,K (Kira)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Fillies ,K (Kira)	2	1294.1	869.1	2	1298.6	869.1	0	0	0	0	0	0
7	Barends ,L (Laurcha)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Barends ,L (Laurcha)	1	1213.8	788.8	1	1215.7	788.8	0	0	0	0	0	0
8	Berry ,L (Luthando)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Berry ,L (Luthando)	1	1293.7	868.7	1	1306.9	868.7	0	0	0	0	0	0
9	Steenberg ,A (Ava)	1	1	425	1	1	425	0	0	0	0	0	0
9	Steenberg ,A (Ava)	1	1080.2	1505.2	1	1062	1505.2	0	0	0	0	0	0
10	Busch ,D (Devandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Busch ,D (Devandre)	1	1147.8	722.8	1	1139.6	722.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Plaatjies, J (Joy)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms