Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kotze, S (Seth)

Chess SA id

1110097361

FIDE id

Date of birth

2011-12-12 (U16)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1208.8	1122.7	1298.2	1200
Raw rating	1208.8	1122.7	1298.2	1200
Weighted rating	1193.6	1087	1296.6	1200
Weighted performance	1016.6	856.6	0	0
Floor	708.8	700	819.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.8	185.1	144.2	165.8
Highest rating	1208.8 2025-09-01	1200 2018-02-01	1637.7 2022-05-01	1200 2018-10-01
Highest raw rating	1208.8 2025-09-01	1200 2018-02-01	1319.6 2022-06-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1319.6 2024-03-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1637.7 2022-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1208.8	1122.7	1298.2	1200
Analysis
Rating	1208.8	1122.7	1298.2	1200
Raw rating	1208.8	1122.7	1298.2	1200
Weighted rating	1193.6	1087	1296.6
Weighted performance	1016.6	856.6	0
K-factor	36	36	36	36
Floor	708.8	700	819.6	700
Max/Min rating change allowed	163.8	185.1	144.2	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	1208.8	1122.7	1298.2	1200
New weighted rating	1195.2	1090.3	1296.6	1200
New weighted performance	1009.5	849.9	0	0
Temp new rating	1208.8	1122.7	1298.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1208.8	1122.7	1298.2	1200
New K-factor	36	36	36	36
New floor	708.8	700	819.6	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	10	0	10
	9	4	5
	16	10	6
	0	0	0
History	56	35	21

Games since
	Main 15	Standard 5		Rapid 10		Blitz 0
Gender	Male
Age group	U16
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
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	5	3	60	85	1219.7	1304.7
Standard	5	3	60	85	1219.7	1304.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	56	26	46.43	-30.4	1200.8	1170.5
Standard	35	11.5	32.86	-145.7	1197.2	1051.5
Rapid	21	14.5	69.05	161.9	1206.9	1368.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1208.8	1122.7	1298.2	1200
2025-09-30	1208.8	1122.7	1298.2	1200
2025-09-01	1208.8	1122.7	1298.2	1200
2025-08-01	1189.9	1076.7	1298.2	1200
2025-07-01	1189.9	1076.7	1298.2	1200
2025-06-01	1189.9	1076.7	1298.2	1200
2025-05-01	1189.9	1076.7	1298.2	1200
2025-04-01	1189.9	1076.7	1298.2	1200
2025-03-01	1189.9	1076.7	1298.2	1200
2025-02-01	1189.9	1076.7	1298.2	1200
2025-01-01	1189.9	1076	1291.5	1200
2024-12-01	1189.9	1076	1291.5	1200
2024-11-01	1189.9	1076	1291.5	1200
2024-10-01	1189.9	1076	1291.5	1200
2024-09-01	1189.9	1076	1291.5	1200
2024-08-01	1189.9	1076	1291.5	1200
2024-07-01	1189.9	1076	1291.5	1200
2024-09-01	1189.9	1076	1291.5	1200
2024-05-01	1189.9	1076	1291.5	1200
2024-04-01	1189.9	1076	1291.5	1200
2024-03-01	1182.9	1076	1310.2	1200
2024-02-01	1163.7	1076	1313.8	1200
2024-01-01	1163.7	1076	1313.8	1200
2023-12-01	1163.7	1076	1313.8	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	Ekurhuleni North Schools Teams 2025 (U15 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U15 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Benoni Primary School Cluster Individuals 2024 (U13 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
3	Laerskool Northmead Proewe 2024 (U13)	2024-02-10	2024-02-10	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	2023 Ekurhuleni North District Schools Finals (U13 Reserves)	2023-07-29	2023-07-29	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
5	Gauteng Open Arnold Classic 2023 (U16)	2023-05-19	2023-05-19	Rapid	Tshwane (GTP)	5	5	3	Yes	Analysis
6	Ekurhuleni-North Schools Teams 2022 (U11)	2022-08-06	2022-08-06	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	RMS Swiss For Rating of Players 2022 (U11)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	6	Yes	Analysis
8	Ekurhuleni-North Schools Finals Indiv 2022 (U11 Boys)	2022-05-13	2022-05-13	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	2019 RMS Laerskole (U9)	2019-06-01	2019-06-01	Standard	Tshwane (GTP)	5	5	0.5	Yes	Analysis
10	Ekurhuleni North District Schools Final 2018 (Primary School Reserves)	2018-08-04	2018-08-04	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
11	Ekurhuleni North Schools Individuals 2018	2018-05-12	2018-05-12	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
12	Brakpan Open 2018 (D)	2018-02-24	2018-02-24	Standard	Ekurhuleni (GE)	5	2	0	Yes	Analysis

#	Games	Start				End
1	8	Tournament Ekurhuleni-North Schools Finals Indiv 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-13	rnd 4	type Standard	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Lukhele, K (Karabo)				Opponent Moilwe, T (Tshiamo)
2	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Wolmarans, J (Johannes)				Opponent Ntombela, M (Mvela)
3	3	Tournament Gauteng Open Arnold Classic 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-05-19	rnd 4	type Rapid	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Lepedi, J (John)				Opponent Magopa, I (Itumeleng)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Wolmarans, J (Johannes)				Opponent Ntombela, M (Mvela)
2	2	Tournament Ekurhuleni-North Schools Teams 2022				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2022-08-06	rnd 5	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Magopa, I (Itumeleng)
3	2	Tournament Ekurhuleni-North Schools Finals Indiv 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-05-13	rnd 4	type Standard	result 1	date 2022-05-13	rnd 5	type Standard	result 1
		Opponent Lukhele, K (Karabo)				Opponent Vorster, K (Kean Pieter)

#	Games	Start				End
1	6	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Coetzee, L (Lilie)				Opponent Moilwe, T (Tshiamo)
2	4	Tournament Gauteng Open Arnold Classic 2023				Tournament Laerskool Northmead Proewe 2024
		date 2023-05-19	rnd 4	type Rapid	result 1	date 2024-02-10	rnd 2	type Rapid	result 1
		Opponent Lepedi, J (John)				Opponent Nel, M (Mekeilah)
3	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 4	type Rapid	result 0.5	date 2024-03-09	rnd 5	type Rapid	result 1
		Opponent Mynhardt, L (Liam)				Opponent Mellanby, A (Areli)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Ekurhuleni-North Schools Finals Indiv 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-13	rnd 4	type Standard	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Lukhele, K (Karabo)				Opponent Moilwe, T (Tshiamo)
2	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Wolmarans, J (Johannes)				Opponent Ntombela, M (Mvela)
3	3	Tournament Gauteng Open Arnold Classic 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-05-19	rnd 4	type Rapid	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Lepedi, J (John)				Opponent Magopa, I (Itumeleng)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Wolmarans, J (Johannes)				Opponent Ntombela, M (Mvela)
2	2	Tournament Ekurhuleni-North Schools Teams 2022				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2022-08-06	rnd 5	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Magopa, I (Itumeleng)
3	2	Tournament Ekurhuleni-North Schools Finals Indiv 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-05-13	rnd 4	type Standard	result 1	date 2022-05-13	rnd 5	type Standard	result 1
		Opponent Lukhele, K (Karabo)				Opponent Vorster, K (Kean Pieter)

#	Games	Start				End
1	6	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Coetzee, L (Lilie)				Opponent Moilwe, T (Tshiamo)
2	4	Tournament Gauteng Open Arnold Classic 2023				Tournament Laerskool Northmead Proewe 2024
		date 2023-05-19	rnd 4	type Rapid	result 1	date 2024-02-10	rnd 2	type Rapid	result 1
		Opponent Lepedi, J (John)				Opponent Nel, M (Mekeilah)
3	1	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-03-09	rnd 5	type Rapid	result 1
		Opponent Mellanby, A (Areli)				Opponent Mellanby, A (Areli)

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	Billing ,A (Aidin)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Billing ,A (Aidin)	2	1322.1	897.1	0	0	0	2	1249.4	897.1	0	0	0
2	Mabogo ,P (Pfufho Alpha)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Mabogo ,P (Pfufho Alpha)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Thobejane ,K (Kabo)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Thobejane ,K (Kabo)	1	1184.7	759.7	1	1181.6	759.7	0	0	0	0	0	0
4	Peters ,S (Sizo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Peters ,S (Sizo)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
5	Ntombela ,M (Mvela)	1	1	425	1	1	425	0	0	0	0	0	0
5	Ntombela ,M (Mvela)	1	1199.5	1624.5	1	1200	1624.5	0	0	0	0	0	0
6	Van Der Merwe ,A (Adriaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Van Der Merwe ,A (Adriaan)	1	1188	763	1	1186	763	0	0	0	0	0	0
7	Ngqoseni ,J (Jamal Musa)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ngqoseni ,J (Jamal Musa)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Wolmarans ,J (Johannes)	1	1	425	1	1	425	0	0	0	0	0	0
8	Wolmarans ,J (Johannes)	1	1199.3	1624.3	1	1199.2	1624.3	0	0	0	0	0	0
9	Sibeko ,K (Koketso)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sibeko ,K (Koketso)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Bell ,S (Shaune)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bell ,S (Shaune)	1	1200	775	1	1200	775	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

Kotze, S (Seth)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms