Chess South Africa Ratings Database

PLAYER PAGE

Personal

Plaat, J (Joshua)

Chess SA id

1000115871

FIDE id

Date of birth

2000-11-30 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1334.7	1249.6	1359.5	1200
Raw rating	1334.7	1249.6	1359.5	1200
Weighted rating	1316.6	1249.6	1333.8	1200
Weighted performance	1187.4	0	1201.9	0
Floor	834.7	749.6	859.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	136.9	154.5	132.1	165.8
Highest rating	1334.7 2025-05-05	1249.6 2024-02-01	1359.5 2025-05-05	1200 2018-10-01
Highest raw rating	1334.7 2025-05-05	1249.6 2024-02-01	1359.5 2025-05-05	1200 2024-02-01
Highest weighted rating	1312.3 2025-08-01	1249.6 2025-02-01	1327.6 2025-08-01	1200 2018-10-01
Highest weighted performance	1315.8 2025-05-05	1227 2023-03-01	1273.5 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1334.7	1249.6	1359.5	1200
Analysis
Rating	1334.7	1249.6	1359.5	1200
Raw rating	1334.7	1249.6	1359.5	1200
Weighted rating	1316.6	1249.6	1333.8
Weighted performance	1187.4	0	1201.9
K-factor	36	36	36	36
Floor	834.7	749.6	859.5	700
Max/Min rating change allowed	136.9	154.5	132.1	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	1334.7	1249.6	1359.5	1200
New weighted rating	1318.6	1249.6	1336.6	1200
New weighted performance	1186.9	0	1201.4	0
Temp new rating	1334.7	1249.6	1359.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1334.7	1249.6	1359.5	1200
New K-factor	36	36	36	36
New floor	834.7	749.6	859.5	700

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	12	0	12
	6	6	0
	11	5	6
	7	0	7
History	60	17	43

Games since
	Main 18	Standard 0		Rapid 18		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
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	6	4.5	75	212.5	1321.7	1534.2
Standard	0	0	0	0	0	0
Rapid	6	4.5	75	212.5	1321.7	1534.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	60	35.5	59.17	77.9	1248.4	1326.3
Standard	17	8	47.06	-25	1284.4	1259.4
Rapid	43	27.5	63.95	118.6	1234.2	1352.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1334.7	1249.6	1359.5	1200
2025-09-01	1334.7	1249.6	1359.5	1200
2025-08-01	1334.7	1249.6	1359.5	1200
2025-07-01	1334.7	1249.6	1359.5	1200
2025-06-01	1334.7	1249.6	1359.5	1200
2025-05-01	1334.7	1249.6	1359.5	1200
2025-04-01	1307.5	1249.6	1318.5	1200
2025-03-01	1307.5	1249.6	1318.5	1200
2025-02-01	1307.5	1249.6	1318.5	1200
2025-01-01	1307.5	1249.6	1318.5	1200
2024-12-01	1304.1	1249.6	1320.3	1200
2024-11-01	1304.1	1249.6	1320.3	1200
2024-10-01	1298.9	1249.6	1308.8	1200
2024-09-01	1298.9	1249.6	1308.8	1200
2024-08-01	1298.9	1249.6	1308.8	1200
2024-07-01	1298.9	1249.6	1308.8	1200
2024-06-01	1298.9	1249.6	1308.8	1200
2024-08-01	1298.9	1249.6	1308.8	1200
2024-04-01	1298.9	1249.6	1308.8	1200
2024-03-01	1298.9	1249.6	1308.8	1200
2024-02-01	1298.9	1249.6	1308.8	1200
2024-01-01	1298.9	1249.6	1308.8	1200
2023-12-01	1298.9	1249.6	1308.8	1200
2023-11-01	1298.9	1249.6	1308.8	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	Rylib Autumn Slam 2025 (Open)	2025-04-26	2025-04-26	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rylib Autumn Slam 2025 (Open)	2025-04-26	2025-04-26	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
2	Rylib Summer Slam 2024 (Open)	2024-12-03	2024-12-03	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Spring Slam 2024 (B)	2024-10-05	2024-10-05	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
4	Cape Town Open Chess Championship 2024 (Intermediate)	2024-03-16	2024-03-17	Standard	Cape Town (WCT)	6	0	0	No	Analysis
5	Cape Town Open 2023 (Intermediate)	2023-03-25	2023-03-26	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
6	Summer Slam 2022 (C)	2022-12-13	2022-12-13	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
7	2022 Western Province Club League (D)	2022-08-27	2022-10-01	Standard	Cape Town (WCT)	7	5	2	Yes	Analysis
8	Summer Slam 2021 (Open)	2021-12-13	2021-12-13	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
9	2020 Western Province Open (Prestige)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
10	Imam Haron 50th Commemoration Event Open 2019	2019-06-15	2019-06-15	Rapid	Cape Town (WCT)	7	6	2	Yes	Analysis
11	2019 Rylands Library Winter Slam (Intermediate)	2019-06-27	2019-06-27	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	8	Tournament Summer Slam 2022				Tournament Cape Town Open 2023
		date 2022-12-13	rnd 1	type Rapid	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Ling, D (Dane)				Opponent Smith, Z (Zion)
2	7	Tournament Rylib Summer Slam 2024				Tournament Rylib Autumn Slam 2025
		date 2024-12-03	rnd 5	type Rapid	result 1	date 2025-04-26	rnd 5	type Rapid	result 1
		Opponent Adams, G (Gerrard)				Opponent Butau, C (Claude)
3	4	Tournament Summer Slam 2021				Tournament 2022 Western Province Club League
		date 2021-12-13	rnd 6	type Rapid	result 1	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Richards, C (Caitlin)				Opponent Delport, E (Eugene)

#	Games	Start				End
1	3	Tournament 2020 Western Province Open				Tournament 2022 Western Province Club League
		date 2020-03-08	rnd 6	type Standard	result 0.5	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Van Der Brook, MJ (Marvin)				Opponent Delport, E (Eugene)
2	2	Tournament Cape Town Open 2023				Tournament Cape Town Open 2023
		date 2023-03-26	rnd 5	type Standard	result 1	date 2023-03-26	rnd 6	type Standard	result 1
		Opponent Davids, C (Chad)				Opponent Grove, E (Emily)
3	2	Tournament Cape Town Open 2023				Tournament Cape Town Open 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Daweti, L (Luhle)				Opponent Smith, Z (Zion)

#	Games	Start				End
1	8	Tournament Summer Slam 2021				Tournament Summer Slam 2022
		date 2021-12-13	rnd 6	type Rapid	result 1	date 2022-12-13	rnd 6	type Rapid	result 1
		Opponent Richards, C (Caitlin)				Opponent Plaat, J (Jerome)
2	7	Tournament Rylib Summer Slam 2024				Tournament Rylib Autumn Slam 2025
		date 2024-12-03	rnd 5	type Rapid	result 1	date 2025-04-26	rnd 5	type Rapid	result 1
		Opponent Adams, G (Gerrard)				Opponent Butau, C (Claude)
3	3	Tournament Spring Slam 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-12-03	rnd 1	type Rapid	result 1
		Opponent Xipu, K (Kamvalethu)				Opponent Muberuka, N (Natasha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Summer Slam 2022				Tournament Cape Town Open 2023
		date 2022-12-13	rnd 1	type Rapid	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Ling, D (Dane)				Opponent Smith, Z (Zion)
2	4	Tournament Rylib Summer Slam 2024				Tournament Rylib Autumn Slam 2025
		date 2024-12-03	rnd 5	type Rapid	result 1	date 2025-04-26	rnd 2	type Rapid	result 1
		Opponent Adams, G (Gerrard)				Opponent Adams, G (Gerrard)
3	4	Tournament Summer Slam 2021				Tournament 2022 Western Province Club League
		date 2021-12-13	rnd 6	type Rapid	result 1	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Richards, C (Caitlin)				Opponent Delport, E (Eugene)

#	Games	Start				End
1	2	Tournament Cape Town Open 2023				Tournament Cape Town Open 2023
		date 2023-03-26	rnd 5	type Standard	result 1	date 2023-03-26	rnd 6	type Standard	result 1
		Opponent Davids, C (Chad)				Opponent Grove, E (Emily)
2	2	Tournament Cape Town Open 2023				Tournament Cape Town Open 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Daweti, L (Luhle)				Opponent Smith, Z (Zion)
3	2	Tournament 2022 Western Province Club League				Tournament 2022 Western Province Club League
		date 2022-08-27	rnd 2	type Standard	result 1	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Willenberg, I (Ivan)				Opponent Delport, E (Eugene)

#	Games	Start				End
1	8	Tournament Summer Slam 2021				Tournament Summer Slam 2022
		date 2021-12-13	rnd 6	type Rapid	result 1	date 2022-12-13	rnd 6	type Rapid	result 1
		Opponent Richards, C (Caitlin)				Opponent Plaat, J (Jerome)
2	4	Tournament Rylib Summer Slam 2024				Tournament Rylib Autumn Slam 2025
		date 2024-12-03	rnd 5	type Rapid	result 1	date 2025-04-26	rnd 2	type Rapid	result 1
		Opponent Adams, G (Gerrard)				Opponent Adams, G (Gerrard)
3	3	Tournament Spring Slam 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-12-03	rnd 1	type Rapid	result 1
		Opponent Xipu, K (Kamvalethu)				Opponent Muberuka, N (Natasha)

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	Adams ,G (Gerrard)	2	2	425	0	0	0	2	2	425	0	0	0
1	Adams ,G (Gerrard)	2	1199.5	1624.5	0	0	0	2	1199	1624.5	0	0	0
2	Muberuka ,N (Natasha)	2	2	425	0	0	0	2	2	425	0	0	0
2	Muberuka ,N (Natasha)	2	1186.1	1611.1	0	0	0	2	1182.2	1611.1	0	0	0
3	Severin ,M (Martin)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Severin ,M (Martin)	1	1396	971	1	1392.9	971	0	0	0	0	0	0
4	Daweti ,L (Luhle)	1	1	425	1	1	425	0	0	0	0	0	0
4	Daweti ,L (Luhle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Ebrahim ,MB (Mumtaaz)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Ebrahim ,MB (Mumtaaz)	1	1140.1	1140.1	1	1138	1140.1	0	0	0	0	0	0
6	Davids ,C (Chad)	1	1	425	1	1	425	0	0	0	0	0	0
6	Davids ,C (Chad)	1	1153.8	1578.8	1	1126.8	1578.8	0	0	0	0	0	0
7	Mlahleni ,O (Okuhle)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mlahleni ,O (Okuhle)	1	1274.3	1699.3	1	1258.8	1699.3	0	0	0	0	0	0
8	Shapiro ,M (Matthew)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Shapiro ,M (Matthew)	1	1510.3	1085.3	0	0	0	1	1539.8	1085.3	0	0	0
9	King ,V (Vicario)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	King ,V (Vicario)	1	1312	887	0	0	0	1	1314.5	887	0	0	0
10	Khalphe ,M (Mubeen)	1	1	425	0	0	0	1	1	425	0	0	0
10	Khalphe ,M (Mubeen)	1	1180.5	1605.5	0	0	0	1	1157.2	1605.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Plaat, J (Joshua)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms