Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rosslee, S (Stephanus Johannes)

Chess SA id

1140306015

FIDE id

Date of birth

2014-05-10 (U12)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

27.5

Junior GPX Points

1267.7

Item	Main	Standard	Rapid	Blitz
Rating	1247.2	1248.8	1204.5	1200
Raw rating	1247.2	1248.8	1204.5	1200
Weighted rating	1199.4	1198.6	1201.9	1200
Weighted performance	1236.6	1240.2	0	0
Floor	747.2	748.8	704.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	155	154.7	164.8	165.8
Highest rating	1249.4 2025-09-01	1253 2025-09-01	1204.5 2025-05-05	1200 2024-06-01
Highest raw rating	1247.2 2025-09-01	1248.8 2025-09-01	1204.5 2025-05-05	1200 2024-06-01
Highest weighted rating	1220.7 2024-06-01	1217.8 2024-06-01	1201.4 2025-08-01	1200 2024-06-01
Highest weighted performance	1249.4 2025-09-01	1253 2025-09-01	1200 2024-06-01	1200 2024-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1247.2	1248.8	1204.5	1200
Analysis
Rating	1247.2	1248.8	1204.5	1200
Raw rating	1247.2	1248.8	1204.5	1200
Weighted rating	1199.4	1198.6	1201.9
Weighted performance	1236.6	1240.2	0
K-factor	36	36	36	36
Floor	747.2	748.8	704.5	700
Max/Min rating change allowed	155	154.7	164.8	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	1247.2	1248.8	1204.5	1200
New weighted rating	1203.6	1203	1202.2	1200
New weighted performance	1236.2	1239.7	0	0
Temp new rating	1247.2	1248.8	1204.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1247.2	1248.8	1204.5	1200
New K-factor	36	36	36	36
New floor	747.2	748.8	704.5	700

Item	Main	Standard	Rapid
	0	0	0
	25	20	5
	20	20	0
	0	0	0
	0	0	0
	0	0	0
History	45	40	5

Games since
	Main 45	Standard 40		Rapid 5		Blitz 0
Gender	Male
Age group	U12
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3660		1191		139
Male	2809		920		112
U12	582		192		16
U12 Male	406		136		13
Standard
	RSA		Province		Region
Overall	3525		1249		148
Male	2707		969		117
U12	540		200		18
U12 Male	379		139		14
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	25	12.5	50	0	1289.5	1289.5
Standard	20	10	50	0	1293.6	1293.6
Rapid	5	2.5	50	0	1273.2	1273.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	45	19.5	43.33	-56.7	1267.4	1210.8
Standard	40	17	42.5	-63.8	1266.7	1203
Rapid	5	2.5	50	0	1273.2	1273.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1247.2	1248.8	1204.5	1200
2025-09-01	1247.2	1248.8	1204.5	1200
2025-08-01	1220.7	1217.8	1204.5	1200
2025-07-01	1220.7	1217.8	1204.5	1200
2025-06-01	1205.5	1201.6	1204.5	1200
2025-05-01	1213.2	1210.2	1204.5	1200
2025-04-01	1205.5	1210.2	1200	1200
2025-03-01	1205.5	1210.2	1200	1200
2025-02-01	1177.3	1176.2	1200	1200
2025-01-01	1158.5	1158	1200	1200
2024-12-01	1158.5	1158	1200	1200
2024-11-01	1158.5	1158	1200	1200
2024-10-01	1128.3	1117.6	1200	1200
2024-09-01	1184.7	1187.6	1200	1200
2024-08-01	1161.8	1158	1200	1200
2024-07-01	1161.8	1158	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	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	GDE (D7) Sedibeng East Schools 2025 (U9+U11)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
2	LS Vryheidsmonument Chess Open 21 Jun 2025 (E)	2025-06-21	2025-06-21	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
3	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
4	HS Overvaal Rapid 12 Apr 2025 (E)	2025-04-12	2025-04-12	Rapid	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
5	Laer Volkskool Open 15 Feb 2025 (E)	2025-02-15	2025-02-15	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	GDE (D7) Sedibeng East Schools 2025 (U9+U11)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
2	LS Vryheidsmonument Chess Open 21 Jun 2025 (E)	2025-06-21	2025-06-21	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
3	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
4	HS Overvaal Rapid 12 Apr 2025 (E)	2025-04-12	2025-04-12	Rapid	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
5	Laer Volkskool Open 15 Feb 2025 (E)	2025-02-15	2025-02-15	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
6	Gauteng Top Schools 2024 (U11 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
7	Gauteng Schools Individuals Finals 2024 (U11 Boys)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	0	Yes	Analysis
8	Sedibeng East D7 Teams Trials 2024 (U11)	2024-08-03	2024-08-03	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
9	AG Visser Open 2024 (D)	2024-06-08	2024-06-08	Standard	Sedibeng (GSV)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Kharafu, OA (Oratile Augustine)				Opponent Dipitso, K (Keamogetswe)
2	2	Tournament LS Vryheidsmonument Chess Open 21 Jun 2025				Tournament LS Vryheidsmonument Chess Open 21 Jun 2025
		date 2025-06-21	rnd 2	type Standard	result 1	date 2025-06-21	rnd 3	type Standard	result 1
		Opponent Nolan, F (Fillipa)				Opponent Emanuel, S (Shiloh)
3	2	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-04-12	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Mphanya, N (Naledi)				Opponent Mahlangu, N (Ntando Junior)

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Kharafu, OA (Oratile Augustine)				Opponent Dipitso, K (Keamogetswe)
2	2	Tournament LS Vryheidsmonument Chess Open 21 Jun 2025				Tournament LS Vryheidsmonument Chess Open 21 Jun 2025
		date 2025-06-21	rnd 2	type Standard	result 1	date 2025-06-21	rnd 3	type Standard	result 1
		Opponent Nolan, F (Fillipa)				Opponent Emanuel, S (Shiloh)
3	2	Tournament Laer Volkskool Open 15 Feb 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Feldman, A (Alec Yacoub)				Opponent Mahlangu, N (Ntando Junior)

#	Games	Start				End
1	2	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 2	type Rapid	result 1	date 2025-04-12	rnd 3	type Rapid	result 0.5
		Opponent Mofokeng, S (Sibusiswe Omphile)				Opponent Karsten, A (Aiden)
2	1	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 5	type Rapid	result 1	date 2025-04-12	rnd 5	type Rapid	result 1
		Opponent Mphanya, N (Naledi)				Opponent Mphanya, N (Naledi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Kharafu, OA (Oratile Augustine)				Opponent Dipitso, K (Keamogetswe)
2	2	Tournament LS Vryheidsmonument Chess Open 21 Jun 2025				Tournament LS Vryheidsmonument Chess Open 21 Jun 2025
		date 2025-06-21	rnd 2	type Standard	result 1	date 2025-06-21	rnd 3	type Standard	result 1
		Opponent Nolan, F (Fillipa)				Opponent Emanuel, S (Shiloh)
3	2	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-04-12	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Mphanya, N (Naledi)				Opponent Mahlangu, N (Ntando Junior)

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Kharafu, OA (Oratile Augustine)				Opponent Dipitso, K (Keamogetswe)
2	2	Tournament LS Vryheidsmonument Chess Open 21 Jun 2025				Tournament LS Vryheidsmonument Chess Open 21 Jun 2025
		date 2025-06-21	rnd 2	type Standard	result 1	date 2025-06-21	rnd 3	type Standard	result 1
		Opponent Nolan, F (Fillipa)				Opponent Emanuel, S (Shiloh)
3	2	Tournament Laer Volkskool Open 15 Feb 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Feldman, A (Alec Yacoub)				Opponent Mahlangu, N (Ntando Junior)

#	Games	Start				End
1	1	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 5	type Rapid	result 1	date 2025-04-12	rnd 5	type Rapid	result 1
		Opponent Mphanya, N (Naledi)				Opponent Mphanya, N (Naledi)
2	1	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 2	type Rapid	result 1	date 2025-04-12	rnd 2	type Rapid	result 1
		Opponent Mofokeng, S (Sibusiswe Omphile)				Opponent Mofokeng, S (Sibusiswe Omphile)

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	Karsten ,A (Aiden)	2	1	0	1	0.5	0	1	0.5	0	0	0	0
1	Karsten ,A (Aiden)	2	1184.4	1184.4	1	1180.4	1184.4	1	1200	1184.4	0	0	0
2	Abdul ,MA (Muhammed Ayaan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Abdul ,MA (Muhammed Ayaan)	2	1448.3	1023.3	1	1483.4	1023.3	1	1265.5	1023.3	0	0	0
3	Kruger ,J (Juanika)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Kruger ,J (Juanika)	1	1153.3	728.3	1	1145.3	728.3	0	0	0	0	0	0
4	Mahlangu ,N (Ntando Junior)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mahlangu ,N (Ntando Junior)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Wahl ,A (Adele Marie E)	1	1	425	1	1	425	0	0	0	0	0	0
5	Wahl ,A (Adele Marie E)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Mashianoke ,K (Kgaugelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mashianoke ,K (Kgaugelo)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Moses ,W (Willow Jasmine)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Moses ,W (Willow Jasmine)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Du Bruyn ,J (Juan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Du Bruyn ,J (Juan)	1	1209.3	1634.3	1	1210.3	1634.3	0	0	0	0	0	0
9	Janse Van Rensburg ,J (Josh)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Janse Van Rensburg ,J (Josh)	1	1530.9	1105.9	1	1524.6	1105.9	0	0	0	0	0	0
10	Nyathi ,B (Bonginkosi)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nyathi ,B (Bonginkosi)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Rosslee, S (Stephanus Johannes)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms