Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, S (Sebastian)

Chess SA id

1140153029

FIDE id

Date of birth

2014-11-17 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1210.4	1224.8	1229.6	1200
Raw rating	1210.4	1224.8	1193.7	1200
Weighted rating	1207.4	1194.4	1229.6	1200
Weighted performance	1100.6	1114.7	0	0
Floor	732.7	724.8	738.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.4	160	167.3	165.8
Highest rating	1267.2 2023-03-01	1251.6 2023-03-01	1282.3 2024-03-01	1200 2018-10-01
Highest raw rating	1232.7 2025-05-05	1224.8 2025-05-05	1238.5 2024-04-01	1200 2024-03-01
Highest weighted rating	1232.7 2024-01-01	1224.8 2024-01-01	1234.9 2025-08-01	1200 2018-10-01
Highest weighted performance	1267.2 2023-03-01	1251.6 2023-03-01	1282.3 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-2.6	0
New rating	1210.4	1224.8	1226.9	1200
Analysis
Rating	1210.4	1224.8	1229.6	1200
Raw rating	1210.4	1224.8	1193.7	1200
Weighted rating	1207.4	1194.4	1229.6
Weighted performance	1100.6	1114.7	0
K-factor	36	36	36	36
Floor	732.7	724.8	738.5	700
Max/Min rating change allowed	163.4	160	167.3	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	1210.4	1224.8	1193.7	1200
New weighted rating	1208.2	1197.7	1226.9	1200
New weighted performance	1100.2	1114.2	0	0
Temp new rating	1210.4	1224.8	1226.9	1200
Temp new rating +/-	0	0	-2.6	0
Final new rating +/-	0	0	-2.6	0
New rating	1210.4	1224.8	1226.9	1200
New K-factor	36	36	36	36
New floor	732.7	724.8	738.5	700

Item	Main	Standard	Rapid
	0	0	0
	11	5	6
	36	24	12
	10	10	0
	0	0	0
	0	0	0
History	57	39	18

Games since
	Main 47	Standard 29		Rapid 18		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3966		1279		211
Male	2997		980		157
U12	661		210		36
U12 Male	455		150		27
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	11	5.5	50	0	1219.4	1219.4
Standard	5	3.5	70	170	1207.5	1377.5
Rapid	6	2	33.33	-141.7	1229.3	1087.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	57	26.5	46.49	-29.8	1230.3	1200.5
Standard	39	17.5	44.87	-43.6	1238.7	1195.1
Rapid	18	9	50	0	1212.2	1212.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1210.4	1224.8	1193.7	1200
2025-09-01	1210.4	1224.8	1193.7	1200
2025-08-01	1232.7	1224.8	1238.5	1200
2025-07-01	1232.7	1224.8	1238.5	1200
2025-06-01	1232.7	1224.8	1238.5	1200
2025-05-01	1232.7	1224.8	1238.5	1200
2025-04-01	1203.3	1184.6	1238.5	1200
2025-03-01	1203.3	1184.6	1238.5	1200
2025-02-01	1203.3	1184.6	1238.5	1200
2025-01-01	1203.3	1184.6	1238.5	1200
2024-12-01	1203.3	1184.6	1238.5	1200
2024-11-01	1203.3	1184.6	1238.5	1200
2024-10-01	1203.3	1184.6	1238.5	1200
2024-09-01	1176.4	1143.2	1238.5	1200
2024-08-01	1176.4	1143.2	1238.5	1200
2024-07-01	1183.3	1144.6	1238.5	1200
2024-06-01	1183.3	1144.6	1238.5	1200
2024-08-01	1183.3	1144.6	1238.5	1200
2024-04-01	1192.6	1150	1238.5	1200
2024-03-01	1156.7	1150	1200	1200
2024-02-01	1156.7	1150	1200	1200
2024-01-01	1205.8	1202.6	1200	1200
2023-12-01	1205.8	1202.6	1200	1200
2023-11-01	1205.8	1202.6	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	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	2	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	2	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
3	Ekurhuleni North Schools Finals - Teams 2024 (U11 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	Ekurhuleni Trails 3 2024 (U12)	2024-08-24	2024-08-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	Ekurhuleni Trails 2 2024 (U12)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
6	Westwood Open 2024 (C)	2024-04-13	2024-04-13	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	Ekurhuleni North Chess Club Open Tournament 2024 (E)	2024-03-02	2024-03-02	Rapid	Ehlanzeni (MEN)	7	7	4	Yes	Analysis
8	Benoni Primary School Cluster Individuals 2024 (U11 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	2024 Gauteng Inter-Region Chess Championship (U10B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
10	Ekurhuleni Chess Trial 3 2023 (U10)	2023-06-17	2023-06-17	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
11	Ekhuruleni Chess Trials 1 2023 (U8+U10)	2023-03-25	2023-03-25	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Combrink, D (Danny)				Opponent Peens, C (Caitlyn)
2	3	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-02	rnd 7	type Rapid	result 1	date 2024-03-09	rnd 2	type Rapid	result 1
		Opponent Van Der Westhuizen, L (L-Ree)				Opponent Voogt, J (Jaak)
3	2	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Ekurhuleni North Chess Club Open Tournament 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Mendonca, N (Nelita)				Opponent Michel, N (Nazario)

#	Games	Start				End
1	3	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 0.5
		Opponent Combrink, D (Danny)				Opponent Marais, S (Sj)
2	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekurhuleni Chess Trial 3 2023
		date 2023-03-25	rnd 5	type Standard	result 1	date 2023-06-17	rnd 1	type Standard	result 1
		Opponent Collins, J (Jaytem)				Opponent Naicker, K (Kahlayo)
3	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Van Wyk, P (Paul)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-02	rnd 7	type Rapid	result 1	date 2024-03-09	rnd 2	type Rapid	result 1
		Opponent Van Der Westhuizen, L (L-Ree)				Opponent Voogt, J (Jaak)
2	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Teams 2025
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Du Preez, D (Daniel)				Opponent Peens, C (Caitlyn)
3	2	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Ekurhuleni North Chess Club Open Tournament 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Mendonca, N (Nelita)				Opponent Michel, N (Nazario)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-02	rnd 7	type Rapid	result 1	date 2024-03-09	rnd 2	type Rapid	result 1
		Opponent Van Der Westhuizen, L (L-Ree)				Opponent Voogt, J (Jaak)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Combrink, D (Danny)				Opponent De Bruin, E (EJ)
3	2	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Ekurhuleni North Chess Club Open Tournament 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Mendonca, N (Nelita)				Opponent Michel, N (Nazario)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Combrink, D (Danny)				Opponent De Bruin, E (EJ)
2	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekurhuleni Chess Trial 3 2023
		date 2023-03-25	rnd 5	type Standard	result 1	date 2023-06-17	rnd 1	type Standard	result 1
		Opponent Collins, J (Jaytem)				Opponent Naicker, K (Kahlayo)
3	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Van Wyk, P (Paul)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-02	rnd 7	type Rapid	result 1	date 2024-03-09	rnd 2	type Rapid	result 1
		Opponent Van Der Westhuizen, L (L-Ree)				Opponent Voogt, J (Jaak)
2	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Teams 2025
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Du Preez, D (Daniel)				Opponent Peens, C (Caitlyn)
3	2	Tournament Ekurhuleni North Chess Club Open Tournament 2024				Tournament Ekurhuleni North Chess Club Open Tournament 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Mendonca, N (Nelita)				Opponent Michel, N (Nazario)

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	Opperman ,N (Naude)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Opperman ,N (Naude)	2	1429.9	1004.9	2	1425.2	1004.9	0	0	0	0	0	0
2	Ngcongolo ,Z (Zanothando)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Ngcongolo ,Z (Zanothando)	2	1343	918	2	1339.1	918	0	0	0	0	0	0
3	Janse Van Vuuren ,E (Estiaan)	2	2	425	2	2	425	0	0	0	0	0	0
3	Janse Van Vuuren ,E (Estiaan)	2	982.5	1407.5	2	951.4	1407.5	0	0	0	0	0	0
4	Rossouw ,L (Lience)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Rossouw ,L (Lience)	2	1252.8	827.8	2	1237.8	827.8	0	0	0	0	0	0
5	Collins ,J (Jaytem)	2	2	425	1	1	425	1	1	425	0	0	0
5	Collins ,J (Jaytem)	2	1097.9	1522.9	1	1091.2	1522.9	1	1146	1522.9	0	0	0
6	Stevens ,L (Luke)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Stevens ,L (Luke)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Fourie ,J (Jacques)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fourie ,J (Jacques)	1	1320.4	895.4	1	1315.3	895.4	0	0	0	0	0	0
8	Louw ,J (Jean)	1	1	425	1	1	425	0	0	0	0	0	0
8	Louw ,J (Jean)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Benjamin ,L (Luyolo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Benjamin ,L (Luyolo)	1	1262.4	837.4	1	1255.3	837.4	0	0	0	0	0	0
10	De Bruin ,E (EJ)	1	1	425	1	1	425	0	0	0	0	0	0
10	De Bruin ,E (EJ)	1	1200	1625	1	1200	1625	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

Botha, S (Sebastian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms