Chess South Africa Ratings Database

PLAYER PAGE

Personal

Muizenheimer, S (Sebastian)

Chess SA id

1130193601

FIDE id

Date of birth

2013-07-18 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

18.5

Junior GPX Points

1284.9

Item	Main	Standard	Rapid	Blitz
Rating	1346.9	1366.9	1220.1	1200
Raw rating	1346.9	1366.9	1220.1	1200
Weighted rating	1288.3	1303.1	1209.3	1200
Weighted performance	1296.7	1313.9	0	0
Floor	846.9	866.9	720.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	134.5	130.7	161.1	165.8
Highest rating	1390.1 2024-05-01	1371.9 2024-05-01	1222.6 2024-07-01	1200 2024-02-01
Highest raw rating	1346.9 2025-09-01	1366.9 2025-09-01	1220.1 2025-09-01	1200 2024-02-01
Highest weighted rating	1302.5 2024-10-01	1322.9 2024-10-01	1208.8 2024-10-01	1200 2024-02-01
Highest weighted performance	1390.1 2024-05-01	1371.9 2024-05-01	1222.6 2024-07-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1346.9	1366.9	1220.1	1200
Analysis
Rating	1346.9	1366.9	1220.1	1200
Raw rating	1346.9	1366.9	1220.1	1200
Weighted rating	1288.3	1303.1	1209.3
Weighted performance	1296.7	1313.9	0
K-factor	36	36	36	36
Floor	846.9	866.9	720.1	700
Max/Min rating change allowed	134.5	130.7	161.1	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	1346.9	1366.9	1220.1	1200
New weighted rating	1294.4	1309.8	1210.3	1200
New weighted performance	1296.3	1313.4	0	0
Temp new rating	1346.9	1366.9	1220.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1346.9	1366.9	1220.1	1200
New K-factor	36	36	36	36
New floor	846.9	866.9	720.1	700

Item	Main	Standard	Rapid
	0	0	0
	22	16	6
	28	17	11
	0	0	0
	0	0	0
	0	0	0
History	50	33	17

Games since
	Main 50	Standard 33		Rapid 17		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2696		851		349
Male	2178		640		276
U14	475		155		65
U14 Male	356		106		45
Standard
	RSA		Province		Region
Overall	2398		670		290
Male	1948		505		224
U14	412		123		53
U14 Male	307		82		34
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	22	13	59.09	77.3	1296.4	1373.7
Standard	16	10	62.5	106.2	1296.2	1402.5
Rapid	6	3	50	0	1296.9	1296.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	50	28	56	51	1298.9	1349.9
Standard	33	20	60.61	90.2	1308.5	1398.7
Rapid	17	8	47.06	-25	1280.1	1255.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1346.9	1366.9	1220.1	1200
2025-09-01	1346.9	1366.9	1220.1	1200
2025-08-01	1279.1	1288	1208.8	1200
2025-07-01	1279.1	1286.3	1208.8	1200
2025-06-01	1279.1	1285.8	1208.8	1200
2025-05-01	1279.1	1285.8	1208.8	1200
2025-04-01	1279.1	1285.8	1208.8	1200
2025-03-01	1302.5	1322.9	1208.8	1200
2025-02-01	1280	1304.7	1208.8	1200
2025-01-01	1280	1304.7	1208.8	1200
2024-12-01	1280	1304.7	1208.8	1200
2024-11-01	1280	1304.7	1208.8	1200
2024-10-01	1280	1304.7	1208.8	1200
2024-09-01	1280	1304.7	1208.8	1200
2024-08-01	1280	1304.7	1208.8	1200
2024-07-01	1298.6	1304.7	1200	1200
2024-06-01	1298.6	1304.7	1200	1200
2024-08-01	1264.5	1267.6	1200	1200
2024-04-01	1264.5	1267.6	1200	1200
2024-03-01	1228.9	1235.2	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	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U13 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U13 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
5	CT District North Top Schools 2024 (U11 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
6	Curro Durbanville Chess Rapid Open 2024 (Beginner)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
7	Western Cape PS Individuals Championship 2024 (U11 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
8	Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
9	North District School Trials 2024 (U11 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament CT Metro Schools Individual Closed 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Fourie, O (Oliver)				Opponent Katsidzira, B (Benjamin)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 2	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Von Wielligh, S (Sven)				Opponent Copley, M (Murray)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-03-03	rnd 6	type Standard	result 1
		Opponent Pieters, E (Eli)				Opponent De Villiers, C (Christiaan)

#	Games	Start				End
1	6	Tournament CT Metro Schools Individual Closed 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Fourie, O (Oliver)				Opponent Mphelo, T (Tshego)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 2	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Von Wielligh, S (Sven)				Opponent Copley, M (Murray)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-03-03	rnd 6	type Standard	result 1
		Opponent Pieters, E (Eli)				Opponent De Villiers, C (Christiaan)

#	Games	Start				End
1	2	Tournament CT District North Top Schools 2024				Tournament Curro Chess Open Rapid 2025
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Afrika, K (Keon)				Opponent Katsidzira, B (Benjamin)
2	2	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Graham, M (Mia)				Opponent Gerber, S (Stefan)
3	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Timm, M (Matthew)				Opponent Timm, M (Matthew)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament CT Metro Schools Individual Closed 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Fourie, O (Oliver)				Opponent Katsidzira, B (Benjamin)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 2	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Von Wielligh, S (Sven)				Opponent Copley, M (Murray)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-03-03	rnd 6	type Standard	result 1
		Opponent Pieters, E (Eli)				Opponent De Villiers, C (Christiaan)

#	Games	Start				End
1	6	Tournament CT Metro Schools Individual Closed 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Fourie, O (Oliver)				Opponent Mphelo, T (Tshego)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 2	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Von Wielligh, S (Sven)				Opponent Copley, M (Murray)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-03-03	rnd 6	type Standard	result 1
		Opponent Pieters, E (Eli)				Opponent De Villiers, C (Christiaan)

#	Games	Start				End
1	2	Tournament CT District North Top Schools 2024				Tournament Curro Chess Open Rapid 2025
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Afrika, K (Keon)				Opponent Katsidzira, B (Benjamin)
2	2	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Graham, M (Mia)				Opponent Gerber, S (Stefan)
3	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Timm, M (Matthew)				Opponent Timm, M (Matthew)

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	De Villiers ,C (Christiaan)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
1	De Villiers ,C (Christiaan)	3	1439.8	1298.1	2	1332.1	1439.8	1	1542.4	1014.8	0	0	0
2	Botha ,J (Jason)	1	1	425	1	1	425	0	0	0	0	0	0
2	Botha ,J (Jason)	1	1199.8	1624.8	1	1199.7	1624.8	0	0	0	0	0	0
3	Mpangeva ,B (Buntu)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mpangeva ,B (Buntu)	1	1270.2	1695.2	1	1279.2	1695.2	0	0	0	0	0	0
4	Marner ,B (Bryan Neil)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Marner ,B (Bryan Neil)	1	1459.9	1034.9	1	1505.8	1034.9	0	0	0	0	0	0
5	Fourie ,O (Oliver)	1	1	425	1	1	425	0	0	0	0	0	0
5	Fourie ,O (Oliver)	1	1244.9	1669.9	1	1215.6	1669.9	0	0	0	0	0	0
6	Kruger ,M (Migael)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kruger ,M (Migael)	1	1432.2	1007.2	1	1403.4	1007.2	0	0	0	0	0	0
7	Harrison ,S (Strauss)	1	1	425	1	1	425	0	0	0	0	0	0
7	Harrison ,S (Strauss)	1	1202.4	1627.4	1	1200	1627.4	0	0	0	0	0	0
8	Bontese ,A (Ahlumile)	1	1	425	1	1	425	0	0	0	0	0	0
8	Bontese ,A (Ahlumile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Pieters ,E (Eli)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pieters ,E (Eli)	1	1194.6	1619.6	1	1206.1	1619.6	0	0	0	0	0	0
10	Henning ,N (Nicolas)	1	1	425	1	1	425	0	0	0	0	0	0
10	Henning ,N (Nicolas)	1	1356.2	1781.2	1	1316	1781.2	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

Muizenheimer, 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