Chess South Africa Ratings Database

PLAYER PAGE

Personal

Roos, J (Joshua)

Chess SA id

1100118991

FIDE id

Date of birth

2010-03-05 (U16)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1132.9	1128.4	1180	1200
Raw rating	1132.9	1128.4	1180	1200
Weighted rating	1132.9	1128.4	1180	1200
Weighted performance	662.1	602.2	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	182.4	183.6	170.6	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1132.9	1128.4	1180	1200
Analysis
Rating	1132.9	1128.4	1180	1200
Raw rating	1132.9	1128.4	1180	1200
Weighted rating	1132.9	1128.4	1180
Weighted performance	662.1	602.2	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	182.4	183.6	170.6	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	1132.9	1128.4	1180	1200
New weighted rating	1132.9	1128.4	1180	1200
New weighted performance	655.6	595.8	0	0
Temp new rating	1132.9	1128.4	1180	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1132.9	1128.4	1180	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	8	8	0
	6	0	6
	0	0	0
History	30	24	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	30	11	36.67	-113.3	1204.4	1091.1
Standard	24	8.5	35.42	-124	1213.2	1089.2
Rapid	6	2.5	41.67	-70.8	1169.5	1098.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1132.9	1128.4	1180	1200
2025-09-30	1132.9	1128.4	1180	1200
2025-09-01	1132.9	1128.4	1180	1200
2025-08-01	1132.9	1128.4	1180	1200
2025-07-01	1132.9	1128.4	1180	1200
2025-06-01	1132.9	1128.4	1180	1200
2025-05-01	1132.9	1128.4	1180	1200
2025-04-01	1132.9	1128.4	1180	1200
2025-03-01	1132.9	1128.4	1180	1200
2025-02-01	1132.9	1128.4	1180	1200
2025-01-01	1132.9	1128.4	1180	1200
2024-12-01	1132.9	1128.4	1180	1200
2024-11-01	1132.9	1128.4	1180	1200
2024-10-01	1132.9	1128.4	1180	1200
2024-09-01	1132.9	1128.4	1180	1200
2024-08-01	1132.9	1128.4	1180	1200
2024-07-01	1132.9	1128.4	1180	1200
2024-09-01	1132.9	1128.4	1180	1200
2024-05-01	1132.9	1128.4	1180	1200
2024-04-01	1132.9	1128.4	1180	1200
2024-03-01	1132.9	1128.4	1180	1200
2024-02-01	1132.9	1128.4	1180	1200
2024-01-01	1132.9	1128.4	1180	1200
2023-12-01	1132.9	1128.4	1180	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	D2 Schools Individuals 2023 (U13 Boys)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	4	3	Yes	Analysis
2	Gauteng Schools Individual Finals 2023 (U13 Boys)	2023-05-26	2023-05-26	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
3	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
4	2020 East District Individuals (U11)	2020-01-31	2020-02-01	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	2020 Cape Of Good Hope Open (Open)	2020-02-21	2020-02-23	Standard	Cape Town (WCT)	6	6	0	Yes	Analysis
6	The Manhattan Sweets & Super C National Chess Tournament 2019 (U9)	2019-09-06	2019-09-07	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Mothupi, R (Reotshepile)				Opponent Jonker, R (Reagan)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Lewis, C (Cayden Peter)				Opponent Kai, R (Rigby)
3	2	Tournament The Manhattan Sweets & Super C National Chess Tournament 2019				Tournament 2020 East District Individuals
		date 2019-09-07	rnd 5	type Standard	result 0.5	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Fouche, E (Elke)				Opponent Mncubela, Z (Zothando)

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Mothupi, R (Reotshepile)				Opponent Jonker, R (Reagan)
2	2	Tournament The Manhattan Sweets & Super C National Chess Tournament 2019				Tournament 2020 East District Individuals
		date 2019-09-07	rnd 5	type Standard	result 0.5	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Fouche, E (Elke)				Opponent Mncubela, Z (Zothando)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-26	rnd 5	type Standard	result 1	date 2023-05-26	rnd 5	type Standard	result 1
		Opponent Pindani, L (Luvuyo Gratitute)				Opponent Pindani, L (Luvuyo Gratitute)

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Lewis, C (Cayden Peter)				Opponent Kai, R (Rigby)
2	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 0.5	date 2022-03-12	rnd 1	type Rapid	result 0.5
		Opponent Olieslaer, W (Waylin)				Opponent Olieslaer, W (Waylin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Mothupi, R (Reotshepile)				Opponent Jonker, R (Reagan)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Lewis, C (Cayden Peter)				Opponent Kai, R (Rigby)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-26	rnd 5	type Standard	result 1	date 2023-05-26	rnd 5	type Standard	result 1
		Opponent Pindani, L (Luvuyo Gratitute)				Opponent Pindani, L (Luvuyo Gratitute)

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Mothupi, R (Reotshepile)				Opponent Jonker, R (Reagan)
2	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-26	rnd 5	type Standard	result 1	date 2023-05-26	rnd 5	type Standard	result 1
		Opponent Pindani, L (Luvuyo Gratitute)				Opponent Pindani, L (Luvuyo Gratitute)
3	1	Tournament 2020 East District Individuals				Tournament 2020 East District Individuals
		date 2020-02-01	rnd 6	type Standard	result 1	date 2020-02-01	rnd 6	type Standard	result 1
		Opponent Le Roux, O (Olivia)				Opponent Le Roux, O (Olivia)

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Lewis, C (Cayden Peter)				Opponent Kai, R (Rigby)

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	Malona ,B (Bokang)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Malona ,B (Bokang)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Van Schaik ,N (Neil)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Van Schaik ,N (Neil)	1	1295.3	870.3	1	1274	870.3	0	0	0	0	0	0
3	Fouche ,E (Elke)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Fouche ,E (Elke)	1	1078.7	1078.7	1	1050	1078.7	0	0	0	0	0	0
4	Coleman ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Coleman ,L (Liam)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Manqoba ,S (Sandile)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Manqoba ,S (Sandile)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Calitz ,J (Joey)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Calitz ,J (Joey)	1	1245.8	820.8	1	1193.6	820.8	0	0	0	0	0	0
7	Jonkers ,T (Tristan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Jonkers ,T (Tristan)	1	1280.3	855.3	1	1263.2	855.3	0	0	0	0	0	0
8	Mothupi ,R (Reotshepile)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mothupi ,R (Reotshepile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Claassen ,N (Nicolaas)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Claassen ,N (Nicolaas)	1	1265.4	840.4	1	1278	840.4	0	0	0	0	0	0
10	Luyendyk ,J (Jude)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Luyendyk ,J (Jude)	1	1188.7	763.7	1	1172	763.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Roos, J (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms