Chess South Africa Ratings Database

PLAYER PAGE

Personal

Roos, R (Roxanne)

Chess SA id

206066091

FIDE id

Date of birth

2006-05-31 (U20)

Gender

Female

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-01-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1220.3	1212	621.2	621.2
Raw rating	1220.3	1212	621.2	621.2
Weighted rating	1220.2	1211.9	621.2	621.2
Weighted performance	831.7	831.1	0	0
Floor	782.8	783.1	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	161.1	163	378.2	378.2
Highest rating	1296.7 2019-08-01	1291.7 2019-08-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	1282.8 2019-12-01	1283.1 2019-12-01	621.2 2024-03-01	621.2 2024-03-01
Highest weighted rating	1282.8 2021-08-01	1283.1 2021-08-01	621.2 2024-11-01	621.2 2024-11-01
Highest weighted performance	1296.7 2019-08-01	1291.7 2019-08-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1220.3	1212	621.2	621.2
Analysis
Rating	1220.3	1212	621.2	621.2
Raw rating	1220.3	1212	621.2	621.2
Weighted rating	1220.2	1211.9	621.2
Weighted performance	831.7	831.1	0
K-factor	36	36	40	40
Floor	782.8	783.1	500	500
Max/Min rating change allowed	161.1	163	378.2	378.2
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	1220.3	1212	621.2	621.2
New weighted rating	1220.2	1211.9	621.2	621.2
New weighted performance	824.8	824.2	0	0
Temp new rating	1220.3	1212	621.2	621.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1220.3	1212	621.2	621.2
New K-factor	36	36	40	40
New floor	782.8	783.1	500	500

Item	Main	Standard
	0	0
	0	0
	5	5
	5	5
	15	15
	0	0
History	314	314

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	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	117	65.5	55.98	50.9	1016.6	1067.5
Standard	117	65.5	55.98	50.9	1016.6	1067.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1220.3	1212	621.2	621.2
2025-09-30	1220.3	1212	621.2	621.2
2025-09-01	1220.3	1212	621.2	621.2
2025-08-01	1220.3	1212	621.2	621.2
2025-07-01	1220.3	1211.9	621.2	621.2
2025-06-01	1220.3	1211.8	621.2	621.2
2025-05-01	1220.2	1211.8	621.2	621.2
2025-04-01	1220.2	1211.8	621.2	621.2
2025-03-01	1220.1	1211.8	621.2	621.2
2025-02-01	1220	1211.8	621.2	621.2
2025-01-01	1219.9	1211.8	621.2	621.2
2024-12-01	1219.9	1211.8	621.2	621.2
2024-11-01	1219.9	1211.8	621.2	621.2
2024-10-01	1219.9	1211.8	621.2	621.2
2024-09-01	1219.9	1211.8	621.2	621.2
2024-08-01	1219.9	1211.8	621.2	621.2
2024-07-01	1219.9	1211.8	621.2	621.2
2024-09-01	1219.9	1211.8	621.2	621.2
2024-05-01	1219.9	1211.8	621.2	621.2
2024-04-01	1219.9	1211.8	621.2	621.2
2024-03-01	1219.9	1211.8	621.2	621.2
2024-02-01	1219.9	1211.8	621.2	621.2
2024-01-01	1228.4	1219	621.2	621.2
2023-12-01	1228.4	1219	621.2	621.2

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	2024 Gauteng Inter-Region Chess Championship (U18 Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	Queens Gambit Chess Open 2023 (B)	2023-11-25	2023-11-25	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	D7 Teams 2022 (U17+U19 Mixed)	2022-08-13	2022-08-13	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	2022 Gauteng Schools Team Championships (U19 Open)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
5	Gaueng Schools D7 2022 (U18 Girls)	2022-06-04	2022-06-04	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
6	Heidelberg Open 2020 (C)	2020-02-01	2020-02-01	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	2019 Gauteng School League Finals (U13 Girls)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	D7 Primary School League 2019 (Girls)	2019-08-03	2019-08-03	Standard	Sedibeng (GSV)	6	6	6	Yes	Analysis
9	2019 Gauteng Primary Schools Individual Chess Championships (U13 Girls)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
10	D7 Individuals 2019 (U13 Girls)	2019-05-04	2019-05-04	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
11	Eagle`s Open 2018 (C)	2018-12-08	2018-12-08	Standard	Sedibeng (GSV)	5	4	3	Yes	Analysis
12	South African Junior Team Championships 2018 (U14A Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	1	Yes	Analysis
13	2018 Interregion Sedibeng vs Ekurhuleni (L)	2018-11-03	2018-11-03	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
14	2018 Sedibeng Summer Open (G)	2018-10-20	2018-10-20	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
15	2018 Gauteng League Final (U13 Girls)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
16	Hoerskool Drie Riviere Open 2018 (C)	2018-06-09	2018-06-09	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
17	2018 Gauteng Secondary Schools Individual Chess Championships (U13 Girls)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	Word of Life Open 2018 (C)	2018-05-12	2018-05-12	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
19	Heidelberg Skaak Klub 2018 (Team 7)	2018-05-05	2018-05-05	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
20	D7 Primary School League 2023 (U9-U13 Girls)	2018-04-21	2018-04-21	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
21	D7 Individual 2018 (U13 Girls)	2018-02-24	2018-02-24	Standard	Sedibeng (GSV)	5	4	2.5	Yes	Analysis
22	2018 Volkskool Open (E)	2018-02-17	2018-02-17	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
23	South African Junior Team Championships 2017 (U12D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	2.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament D7 Primary School League 2019				Tournament 2019 Gauteng School League Finals
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-23	rnd 3	type Standard	result 1
		Opponent Abrahams, C (Caylie)				Opponent Nkuna, B (Bongile)
2	6	Tournament D7 Individuals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-04	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Besele, N (Nomsa)				Opponent Mogabe, R (Refilwe)
3	5	Tournament Heidelberg Open 2020				Tournament Gaueng Schools D7 2022
		date 2020-02-01	rnd 5	type Standard	result 1	date 2022-06-04	rnd 4	type Standard	result 1
		Opponent Jacobs, N (Nicholaas)				Opponent Gladile, S (Smangele)

#	Games	Start				End
1	9	Tournament D7 Primary School League 2019				Tournament 2019 Gauteng School League Finals
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-23	rnd 3	type Standard	result 1
		Opponent Abrahams, C (Caylie)				Opponent Nkuna, B (Bongile)
2	6	Tournament D7 Individuals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-04	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Besele, N (Nomsa)				Opponent Mogabe, R (Refilwe)
3	5	Tournament Heidelberg Open 2020				Tournament Gaueng Schools D7 2022
		date 2020-02-01	rnd 5	type Standard	result 1	date 2022-06-04	rnd 4	type Standard	result 1
		Opponent Jacobs, N (Nicholaas)				Opponent Gladile, S (Smangele)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament D7 Primary School League 2019				Tournament 2019 Gauteng School League Finals
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-23	rnd 3	type Standard	result 1
		Opponent Abrahams, C (Caylie)				Opponent Nkuna, B (Bongile)
2	6	Tournament D7 Individuals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-04	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Besele, N (Nomsa)				Opponent Mogabe, R (Refilwe)
3	5	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 1	type Standard	result 1	date 2018-04-21	rnd 5	type Standard	result 1
		Opponent Van Der Wath, R (Rochelle)				Opponent Masilo, R (Rendane)

#	Games	Start				End
1	9	Tournament D7 Primary School League 2019				Tournament 2019 Gauteng School League Finals
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-23	rnd 3	type Standard	result 1
		Opponent Abrahams, C (Caylie)				Opponent Nkuna, B (Bongile)
2	6	Tournament D7 Individuals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-04	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Besele, N (Nomsa)				Opponent Mogabe, R (Refilwe)
3	5	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 1	type Standard	result 1	date 2018-04-21	rnd 5	type Standard	result 1
		Opponent Van Der Wath, R (Rochelle)				Opponent Masilo, R (Rendane)

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	Roos ,A (Abigail)	5	1	-255	5	1	-255	0	0	0	0	0	0
1	Roos ,A (Abigail)	5	937.9	682.9	5	941.8	682.9	0	0	0	0	0	0
2	Gladile ,S (Smangele)	3	3	425	3	3	425	0	0	0	0	0	0
2	Gladile ,S (Smangele)	3	974.1	1399.1	3	972.5	1399.1	0	0	0	0	0	0
3	Kelebogile ,M (Marumo)	3	3	425	3	3	425	0	0	0	0	0	0
3	Kelebogile ,M (Marumo)	3	1189.8	1614.8	3	1187.5	1614.8	0	0	0	0	0	0
4	Coetzee ,A (Anika)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Coetzee ,A (Anika)	3	863.7	580.3	3	852.8	580.3	0	0	0	0	0	0
5	Mateboho ,G (Gaula)	2	1	0	2	1	0	0	0	0	0	0	0
5	Mateboho ,G (Gaula)	2	1198.9	1198.9	2	1198.4	1198.9	0	0	0	0	0	0
6	Naude ,E (Enrique)	2	1	0	2	1	0	0	0	0	0	0	0
6	Naude ,E (Enrique)	2	961.4	961.4	2	959.5	961.4	0	0	0	0	0	0
7	Pretorius ,S (Suate)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Pretorius ,S (Suate)	2	767.3	554.8	2	768.7	554.8	0	0	0	0	0	0
8	Besele ,N (Nomsa)	2	2	425	2	2	425	0	0	0	0	0	0
8	Besele ,N (Nomsa)	2	749.8	1174.8	2	765.3	1174.8	0	0	0	0	0	0
9	Abrahams ,C (Caylie)	2	2	425	2	2	425	0	0	0	0	0	0
9	Abrahams ,C (Caylie)	2	1233.2	1658.2	2	1240	1658.2	0	0	0	0	0	0
10	Fourie ,K (Kira)	2	2	425	2	2	425	0	0	0	0	0	0
10	Fourie ,K (Kira)	2	1126	1551	2	1109.2	1551	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

Roos, R (Roxanne)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms