Chess South Africa Ratings Database

PLAYER PAGE

Personal

Sedeman, A (Aiden)

Chess SA id

1100192698

FIDE id

Date of birth

2010-08-31 (U16)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

49.8

Junior GPX Points

1330.7

Item	Main	Standard	Rapid	Blitz
Rating	1557.8	1472.9	1544.6	1356.8
Raw rating	1532.6	1472.9	1516.6	1356.8
Weighted rating	1393.4	1307.9	1416.1	1343.9
Weighted performance	1557.8	1471.5	1544.6	0
Floor	1032.6	972.9	1016.6	856.8
K-factor	32	32	32	36
Min/Max rating change allowed	103.2	112.4	105.6	132.6
Highest rating	1557.8 2025-09-30	1472.9 2025-09-30	1618.9 2024-04-01	1446 2024-05-01
Highest raw rating	1532.6 2025-09-30	1472.9 2025-09-30	1516.6 2025-09-30	1356.8 2024-06-01
Highest weighted rating	1424.1 2024-10-01	1307.9 2025-09-30	1440.4 2024-07-01	1356.8 2024-10-01
Highest weighted performance	1557.8 2025-09-30	1471.5 2025-09-30	1618.9 2024-04-01	1446 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	0	-0.5	0
New rating	1557.3	1472.9	1544	1356.8
Analysis
Rating	1557.8	1472.9	1544.6	1356.8
Raw rating	1532.6	1472.9	1516.6	1356.8
Weighted rating	1393.4	1307.9	1416.1
Weighted performance	1557.8	1471.5	1544.6
K-factor	32	32	32	36
Floor	1032.6	972.9	1016.6	856.8
Max/Min rating change allowed	103.2	112.4	105.6	132.6
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	1532.6	1472.9	1516.6	1356.8
New weighted rating	1408	1324.5	1427.1	1347.3
New weighted performance	1557.3	1471	1544	0
Temp new rating	1557.3	1472.9	1544	1356.8
Temp new rating +/-	-0.5	0	-0.5	0
Final new rating +/-	-0.5	0	-0.5	0
New rating	1557.3	1472.9	1544	1356.8
New K-factor	32	32	32	36
New floor	1032.6	972.9	1016.6	856.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	58	33	25	0
	69	14	36	19
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	127	47	61	19

Games since
	Main 127	Standard 47		Rapid 61		Blitz 19
Gender	Male
Age group	U16
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	856		249		16
Male	760		213		13
U16	103		29		3
U16 Male	87		25		3
Standard
	RSA		Province		Region
Overall	1377		373		21
Male	1159		299		17
U16	192		59		3
U16 Male	151		46		3
Rapid
	RSA		Province		Region
Overall	153		73		15
Male	148		70		12
U16	18		12		5
U16 Male	17		11		4
Blitz
	RSA		Province		Region
Overall	222		95		7
Male	214		91		6
U16	14		6		2
U16 Male	13		6		2


	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	58	40.5	69.83	168.5	1343.8	1512.3
Standard	33	20	60.61	90.2	1406.1	1496.2
Rapid	25	20.5	82	272	1261.5	1533.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	127	83.5	65.75	133.9	1335.4	1469.3
Standard	47	27.5	58.51	72.3	1388.3	1460.6
Rapid	61	42.5	69.67	167.2	1307	1474.2
Blitz	19	13.5	71.05	178.9	1296	1474.9

Date	Main	Standard	Rapid	Blitz
2025-09-30	1532.6	1472.9	1516.6	1356.8
2025-09-01	1445.2	1378.9	1490.4	1356.8
2025-08-01	1411.6	1378.9	1416.9	1356.8
2025-07-01	1405.7	1367.3	1415.1	1356.8
2025-06-01	1405.7	1367.3	1415.1	1356.8
2025-05-01	1416.9	1374.4	1415.1	1356.8
2025-04-01	1424.1	1336.5	1415.1	1356.8
2025-03-01	1405.2	1297.5	1415.1	1356.8
2025-02-01	1396.1	1297.5	1399.9	1356.8
2025-01-01	1396.1	1297.5	1399.9	1356.8
2024-12-01	1353.5	1217.6	1399.9	1356.8
2024-11-01	1353.5	1217.6	1399.9	1356.8
2024-10-01	1353.5	1217.6	1399.9	1356.8
2024-09-01	1349.5	1217.6	1399.9	1356.8
2024-08-01	1340.8	1189.6	1399.9	1356.8
2024-07-01	1357.5	1189.6	1435.4	1356.8
2024-06-01	1366.2	1189.6	1440.4	1356.8
2024-08-01	1345.6	1189.6	1434	1273.6
2024-04-01	1260.6	1189.6	1332.8	1200
2024-03-01	1281.8	1200	1332.8	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	Basil Ellman Annual Rapid 2025 (Seniors)	2025-09-20	2025-09-20	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
3	Rooibos Open 2025 (Elite)	2025-08-30	2025-08-30	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
4	Pedro Booyse Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	6	6	4.5	Yes	Analysis
5	Western Cape Women�s Championship 2025 (Advanced)	2025-08-08	2025-08-10	Standard	West Coast (WCU)	6	0	0	No	Analysis
6	West Coast College Inter Campus 2025	2025-07-26	2025-07-26	Rapid	West Coast (WCU)	5	5	5	Yes	Analysis
7	Lower West Coast Top Schools 2025 (U15)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
8	Deep Blue Open 2025 (A)	2025-06-21	2025-06-21	Standard	West Coast (WCU)	5	4	1	Yes	Analysis
9	West Coast And Mykonos Open 2025 (Open)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
10	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
11	West Coast Schools Chess Prestige 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
12	Lower West Coast Prestige 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Basil Ellman Annual Rapid 2025 (Seniors)	2025-09-20	2025-09-20	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
3	Rooibos Open 2025 (Elite)	2025-08-30	2025-08-30	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
4	Pedro Booyse Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	6	6	4.5	Yes	Analysis
5	Western Cape Women�s Championship 2025 (Advanced)	2025-08-08	2025-08-10	Standard	West Coast (WCU)	6	0	0	No	Analysis
6	West Coast College Inter Campus 2025	2025-07-26	2025-07-26	Rapid	West Coast (WCU)	5	5	5	Yes	Analysis
7	Lower West Coast Top Schools 2025 (U15)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
8	Deep Blue Open 2025 (A)	2025-06-21	2025-06-21	Standard	West Coast (WCU)	5	4	1	Yes	Analysis
9	West Coast And Mykonos Open 2025 (Open)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
10	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
11	West Coast Schools Chess Prestige 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
12	Lower West Coast Prestige 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
13	Lambertsbay Chess Club Crayfish Classic 2024	2024-12-16	2024-12-16	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
14	The Rooibos Open 2024 (Elite)	2024-08-24	2024-08-24	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
15	Pedro Booyse Top Schools Championships 2024 (U15)	2024-07-20	2024-07-20	Standard	West Coast (WCU)	5	3	2	Yes	Analysis
16	Vredendal North CC Open 2024 (Elite)	2024-07-27	2024-07-27	Rapid	West Coast (WCU)	5	4	1	Yes	Analysis
17	Lambertsbay Youth Open 2024 (Elite)	2024-06-17	2024-06-17	Rapid	West Coast (WCU)	5	5	2.5	Yes	Analysis
18	Basil Ellman Annual Rapid 2024 (Elite)	2024-06-08	2024-06-08	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
19	Deep Blue CC May Blitz 2024	2024-05-22	2024-05-22	Blitz	West Coast (WCU)	7	7	6	Yes	Analysis
20	Lower West Top Schools 2024 (U15)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	2	1.5	Yes	Analysis
21	Deep Blue Chess Club April Blitz 2024	2024-04-24	2024-04-24	Blitz	West Coast (WCU)	7	7	5	Yes	Analysis
22	Deep Blue Open 2024 (Advanced)	2024-04-13	2024-04-13	Rapid	West Coast (WCU)	5	5	5	Yes	Analysis
23	Deep Blue March Blitz 2024	2024-03-27	2024-03-27	Blitz	West Coast (WCU)	5	5	2.5	Yes	Analysis
24	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	1.5	Yes	Analysis
25	West Coast Schools Chess Prestige Championships 2024 (U15 Boys)	2024-02-24	2024-02-24	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
26	Lower West Coast Schools Chess Prestige 2024 (U15 Boys)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis

#	Games	Start				End
1	8	Tournament Deep Blue Chess Club April Blitz 2024				Tournament Deep Blue CC May Blitz 2024
		date 2024-04-24	rnd 6	type Blitz	result 1	date 2024-05-22	rnd 4	type Blitz	result 1
		Opponent Marinus, M (Madison)				Opponent Stoffberg, M (Mikaeel)
2	7	Tournament Western Cape Schools - Top Schools 2025				Tournament Basil Ellman Annual Rapid 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Scholz, G (Gabriel)				Opponent Nabo, B (Banele)
3	6	Tournament West Coast College Inter Campus 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-07-26	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Yeko, L (Lisakhanya)				Opponent Cardinal, J (Jacelynn)

#	Games	Start				End
1	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Scholz, G (Gabriel)				Opponent Matima, A (Aiden)
2	5	Tournament Lambertsbay Chess Club Crayfish Classic 2024				Tournament West Coast Schools Chess Prestige 2025
		date 2024-12-16	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Jordaan, PC (Pieter)				Opponent Booysen, C (Chadlin)
3	3	Tournament Rooibos Open 2025				Tournament Rooibos Open 2025
		date 2025-08-30	rnd 2	type Standard	result 1	date 2025-08-30	rnd 4	type Standard	result 1
		Opponent Ockhuis, DM (Deno Marc)				Opponent Booysen, J (Jenilo)

#	Games	Start				End
1	8	Tournament Lower West Coast Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-06-14	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Matesha, J (Jameson)				Opponent Cardinal, J (Jacelynn)
2	7	Tournament Deep Blue Open 2024				Tournament Lower West Top Schools 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-05-11	rnd 4	type Rapid	result 0.5
		Opponent Meyer, D (Dewanio)				Opponent Swarts, R (Rudigar)
3	5	Tournament Pedro Booyse Top Schools 2025				Tournament Basil Ellman Annual Rapid 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Cloete, S (Stan Lee)				Opponent Nabo, B (Banele)

#	Games	Start				End
1	6	Tournament Deep Blue Chess Club April Blitz 2024				Tournament Deep Blue CC May Blitz 2024
		date 2024-04-24	rnd 6	type Blitz	result 1	date 2024-05-22	rnd 4	type Blitz	result 1
		Opponent Marinus, M (Madison)				Opponent Stoffberg, M (Mikaeel)
2	3	Tournament Deep Blue Chess Club April Blitz 2024				Tournament Deep Blue Chess Club April Blitz 2024
		date 2024-04-24	rnd 2	type Blitz	result 1	date 2024-04-24	rnd 4	type Blitz	result 1
		Opponent Siebritz, N (Noelle)				Opponent Kujinga, T (Tawanayasha)
3	2	Tournament Deep Blue CC May Blitz 2024				Tournament Deep Blue CC May Blitz 2024
		date 2024-05-22	rnd 6	type Blitz	result 1	date 2024-05-22	rnd 7	type Blitz	result 1
		Opponent Khosa, L (Lwandle)				Opponent Siebritz, Y (Yul)

#	Games	Start				End
1	7	Tournament Western Cape Schools - Top Schools 2025				Tournament Basil Ellman Annual Rapid 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Scholz, G (Gabriel)				Opponent Nabo, B (Banele)
2	6	Tournament West Coast College Inter Campus 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-07-26	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Yeko, L (Lisakhanya)				Opponent Cardinal, J (Jacelynn)
3	5	Tournament Lambertsbay Chess Club Crayfish Classic 2024				Tournament Lower West Coast Prestige 2025
		date 2024-12-16	rnd 4	type Standard	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Jordaan, PC (Pieter)				Opponent Brand, E (Evan)

#	Games	Start				End
1	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Scholz, G (Gabriel)				Opponent Matima, A (Aiden)
2	5	Tournament Lambertsbay Chess Club Crayfish Classic 2024				Tournament West Coast Schools Chess Prestige 2025
		date 2024-12-16	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Jordaan, PC (Pieter)				Opponent Booysen, C (Chadlin)
3	3	Tournament Rooibos Open 2025				Tournament Rooibos Open 2025
		date 2025-08-30	rnd 2	type Standard	result 1	date 2025-08-30	rnd 4	type Standard	result 1
		Opponent Ockhuis, DM (Deno Marc)				Opponent Booysen, J (Jenilo)

#	Games	Start				End
1	8	Tournament Lower West Coast Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-06-14	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Matesha, J (Jameson)				Opponent Cardinal, J (Jacelynn)
2	6	Tournament Deep Blue Open 2024				Tournament Lower West Top Schools 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-05-11	rnd 3	type Rapid	result 1
		Opponent Meyer, D (Dewanio)				Opponent Danster, K (Kesia)
3	4	Tournament The Rooibos Open 2024				Tournament Lower West Coast Prestige 2025
		date 2024-08-24	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent White, J (Jonavan)				Opponent Brand, E (Evan)

#	Games	Start				End
1	6	Tournament Deep Blue Chess Club April Blitz 2024				Tournament Deep Blue CC May Blitz 2024
		date 2024-04-24	rnd 6	type Blitz	result 1	date 2024-05-22	rnd 4	type Blitz	result 1
		Opponent Marinus, M (Madison)				Opponent Stoffberg, M (Mikaeel)
2	3	Tournament Deep Blue Chess Club April Blitz 2024				Tournament Deep Blue Chess Club April Blitz 2024
		date 2024-04-24	rnd 2	type Blitz	result 1	date 2024-04-24	rnd 4	type Blitz	result 1
		Opponent Siebritz, N (Noelle)				Opponent Kujinga, T (Tawanayasha)
3	2	Tournament Deep Blue CC May Blitz 2024				Tournament Deep Blue CC May Blitz 2024
		date 2024-05-22	rnd 6	type Blitz	result 1	date 2024-05-22	rnd 7	type Blitz	result 1
		Opponent Khosa, L (Lwandle)				Opponent Siebritz, Y (Yul)

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	Ellman ,A (Anne-Belle)	6	3.5	70.8	1	1	425	2	1	0	3	1.5	0
1	Ellman ,A (Anne-Belle)	6	1405.4	1476.2	1	1324.7	1830.4	2	1336.2	1405.4	3	1311.6	1405.4
2	Elliott ,M (Matayo)	4	1.5	-106.2	1	1	425	3	0.5	-283.3	0	0	0
2	Elliott ,M (Matayo)	4	1357.2	1250.9	1	1205.7	1782.2	3	1389.4	1073.8	0	0	0
3	Siebritz ,N (Noelle)	4	4	425	0	0	0	1	1	425	3	3	425
3	Siebritz ,N (Noelle)	4	1178.3	1603.3	0	0	0	1	1415.9	1603.3	3	1151.7	1603.3
4	Siebritz ,Y (Yul)	4	1	-212.5	0	0	0	1	0	-425	3	1	-141.7
4	Siebritz ,Y (Yul)	4	1405.6	1193.1	0	0	0	1	1495	980.6	3	1300.7	1263.9
5	Stoffberg ,M (Mikaeel)	3	3	425	1	1	425	0	0	0	2	2	425
5	Stoffberg ,M (Mikaeel)	3	1294.3	1719.3	1	1336.6	1719.3	0	0	0	2	1238.3	1719.3
6	Meyer ,D (Dewanio)	3	3	425	0	0	0	3	3	425	0	0	0
6	Meyer ,D (Dewanio)	3	1211.3	1636.3	0	0	0	3	1227.6	1636.3	0	0	0
7	Basson ,JE (Jacques Elbert)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Basson ,JE (Jacques Elbert)	2	1672.2	1247.2	2	1660.2	1247.2	0	0	0	0	0	0
8	Booysen ,J (Jenilo)	2	1	0	1	1	425	1	0	-425	0	0	0
8	Booysen ,J (Jenilo)	2	1510.2	1510.2	1	1423.3	1935.2	1	1505.3	1085.2	0	0	0
9	Njokweni ,L (Llyabona)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Njokweni ,L (Llyabona)	2	1589.4	1164.4	1	1581.8	1164.4	1	1558.1	1164.4	0	0	0
10	Nabo ,B (Banele)	2	2	425	1	1	425	1	1	425	0	0	0
10	Nabo ,B (Banele)	2	1216.9	1641.9	1	1200	1641.9	1	1264.1	1641.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Sedeman, A (Aiden)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms