Chess South Africa Ratings Database

PLAYER PAGE

Personal

Piek, S (Sebastian)

Chess SA id

106093982

FIDE id

Date of birth

2006-06-26 (U20)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1210.2	1141.6	1182.7	1242
Raw rating	1210.2	1141.6	1182.7	1242
Weighted rating	1210.2	1141.6	1182.7	1242
Weighted performance	788.7	677.4	0	0
Floor	722.1	700	753.6	742
K-factor	36	36	36	36
Min/Max rating change allowed	163.4	180.2	170	156.2
Highest rating	1230.8 2022-08-01	1200 2018-02-01	1304.8 2022-01-01	1302 2022-05-01
Highest raw rating	1222.1 2023-01-01	1200 2018-02-01	1253.6 2022-02-01	1242 2024-02-01
Highest weighted rating	1222.1 2024-05-01	1200 2018-02-01	1253.6 2022-07-01	1242 2024-05-01
Highest weighted performance	1230.8 2022-08-01	1200 2018-02-01	1304.8 2022-01-01	1302 2022-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1210.2	1141.6	1182.7	1242
Analysis
Rating	1210.2	1141.6	1182.7	1242
Raw rating	1210.2	1141.6	1182.7	1242
Weighted rating	1210.2	1141.6	1182.7
Weighted performance	788.7	677.4	0
K-factor	36	36	36	36
Floor	722.1	700	753.6	742
Max/Min rating change allowed	163.4	180.2	170	156.2
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	1210.2	1141.6	1182.7	1242
New weighted rating	1210.2	1141.6	1182.7	1242
New weighted performance	781.7	670.8	0	0
Temp new rating	1210.2	1141.6	1182.7	1242
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1210.2	1141.6	1182.7	1242
New K-factor	36	36	36	36
New floor	722.1	700	753.6	742

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	10	10	0	0
	28	7	15	6
	5	0	5	0
History	58	32	20	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	53	28.5	53.77	32.1	1197.8	1229.9
Standard	27	10	37.04	-110.2	1200.5	1090.3
Rapid	20	13.5	67.5	148.8	1189.1	1337.9
Blitz	6	5	83.33	283.3	1215	1498.3

Date	Main	Standard	Rapid	Blitz
2025-11-01	1210.2	1141.6	1182.7	1242
2025-09-30	1210.2	1141.6	1182.7	1242
2025-09-01	1210.2	1141.6	1182.7	1242
2025-08-01	1210.2	1141.6	1182.7	1242
2025-07-01	1210.2	1141.6	1182.7	1242
2025-06-01	1210.2	1141.6	1182.7	1242
2025-05-01	1210.2	1141.6	1182.7	1242
2025-04-01	1210.2	1141.6	1182.7	1242
2025-03-01	1210.2	1141.6	1182.7	1242
2025-02-01	1210.2	1141.6	1182.7	1242
2025-01-01	1210.2	1141.6	1182.7	1242
2024-12-01	1210.2	1141.6	1182.7	1242
2024-11-01	1210.2	1141.6	1182.7	1242
2024-10-01	1210.2	1141.6	1182.7	1242
2024-09-01	1210.2	1141.6	1182.7	1242
2024-08-01	1210.2	1141.6	1182.7	1242
2024-07-01	1210.2	1141.6	1182.7	1242
2024-09-01	1210.2	1141.6	1182.7	1242
2024-05-01	1210.2	1141.6	1182.7	1242
2024-04-01	1210.2	1141.6	1182.7	1242
2024-03-01	1210.2	1141.6	1182.7	1242
2024-02-01	1210.2	1141.6	1182.7	1242
2024-01-01	1210.2	1141.6	1182.7	1242
2023-12-01	1210.2	1141.6	1182.7	1242

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Inter Regional Chess Championship 2023 (U18)	2023-05-19	2023-05-20	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
2	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
3	2022 South African Junior Team Chess Championships (U18 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis
4	Mangaung Metro Chess 13 August 2022 (B)	2022-08-13	2022-08-13	Rapid	Mangaung (FMB)	5	5	3.5	Yes	Analysis
5	Mangaung Metro Chess 30 July 2022 (B)	2022-07-30	2022-07-30	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
6	Smart Chess Blitz 2022 (Juniors)	2022-05-07	2022-05-07	Blitz	Mangaung (FMB)	7	6	5	Yes	Analysis
7	Mangaung Metro Chess 22 January 2022 (B)	2022-01-22	2022-01-22	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
8	Mangaung Metro Chess 28 August 2021 (B)	2021-08-28	2021-08-28	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
9	Mangaung Metro Chess February 2020 (C)	2020-02-21	2020-02-22	Standard	Mangaung (FMB)	5	5	1	Yes	Analysis
10	2018 Gauteng League Final (U13)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Smart Chess Blitz 2022				Tournament Smart Chess Blitz 2022
		date 2022-05-07	rnd 3	type Blitz	result 1	date 2022-05-07	rnd 7	type Blitz	result 1
		Opponent Beelders, K (Kyra)				Opponent Snyman, J (Jan-Hendrik)
2	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mogorosie, L (Lindsay)				Opponent De Villiers, H (Hj)
3	4	Tournament Mangaung Metro Chess 28 August 2021				Tournament Mangaung Metro Chess 28 August 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 4	type Rapid	result 1
		Opponent Motsokobi, K (Keabetswe)				Opponent Whyte, W (Wyatt)

#	Games	Start				End
1	3	Tournament Inter Regional Chess Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-05-19	rnd 1	type Standard	result 1	date 2023-05-20	rnd 3	type Standard	result 1
		Opponent Leeuw, U (Unathi)				Opponent Van Wyk, S (Skai)
2	2	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jansen, R (Rikus)				Opponent Alexander, D (Darrion)
3	2	Tournament 2022 South African Junior Team Chess Championships				Tournament 2022 South African Junior Team Chess Championships
		date 2022-12-07	rnd 6	type Standard	result 1	date 2022-12-08	rnd 7	type Standard	result 0.5
		Opponent Vermeulen, D (Dian)				Opponent Pasaribu, M (Matthew)

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mogorosie, L (Lindsay)				Opponent De Villiers, H (Hj)
2	4	Tournament Mangaung Metro Chess 28 August 2021				Tournament Mangaung Metro Chess 28 August 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 4	type Rapid	result 1
		Opponent Motsokobi, K (Keabetswe)				Opponent Whyte, W (Wyatt)
3	3	Tournament Mangaung Metro Chess 13 August 2022				Tournament Mangaung Metro Chess 13 August 2022
		date 2022-08-13	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 3	type Rapid	result 0.5
		Opponent Lottering, JG (Gerhard)				Opponent Els, C (Christiaan)

#	Games	Start				End
1	5	Tournament Smart Chess Blitz 2022				Tournament Smart Chess Blitz 2022
		date 2022-05-07	rnd 3	type Blitz	result 1	date 2022-05-07	rnd 7	type Blitz	result 1
		Opponent Beelders, K (Kyra)				Opponent Snyman, J (Jan-Hendrik)

#	Games	Start				End
1	5	Tournament Smart Chess Blitz 2022				Tournament Smart Chess Blitz 2022
		date 2022-05-07	rnd 3	type Blitz	result 1	date 2022-05-07	rnd 7	type Blitz	result 1
		Opponent Beelders, K (Kyra)				Opponent Snyman, J (Jan-Hendrik)
2	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mogorosie, L (Lindsay)				Opponent De Villiers, H (Hj)
3	4	Tournament Mangaung Metro Chess 28 August 2021				Tournament Mangaung Metro Chess 28 August 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 4	type Rapid	result 1
		Opponent Motsokobi, K (Keabetswe)				Opponent Whyte, W (Wyatt)

#	Games	Start				End
1	2	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jansen, R (Rikus)				Opponent Alexander, D (Darrion)
2	1	Tournament Inter Regional Chess Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-05-20	rnd 3	type Standard	result 1	date 2023-05-20	rnd 3	type Standard	result 1
		Opponent Van Wyk, S (Skai)				Opponent Van Wyk, S (Skai)
3	1	Tournament Inter Regional Chess Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-05-19	rnd 1	type Standard	result 1	date 2023-05-19	rnd 1	type Standard	result 1
		Opponent Leeuw, U (Unathi)				Opponent Leeuw, U (Unathi)

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mogorosie, L (Lindsay)				Opponent De Villiers, H (Hj)
2	4	Tournament Mangaung Metro Chess 28 August 2021				Tournament Mangaung Metro Chess 28 August 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 4	type Rapid	result 1
		Opponent Motsokobi, K (Keabetswe)				Opponent Whyte, W (Wyatt)
3	2	Tournament Mangaung Metro Chess 13 August 2022				Tournament Mangaung Metro Chess 13 August 2022
		date 2022-08-13	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 2	type Rapid	result 1
		Opponent Lottering, JG (Gerhard)				Opponent Van Der Merwe, M (Marthinus)

#	Games	Start				End
1	5	Tournament Smart Chess Blitz 2022				Tournament Smart Chess Blitz 2022
		date 2022-05-07	rnd 3	type Blitz	result 1	date 2022-05-07	rnd 7	type Blitz	result 1
		Opponent Beelders, K (Kyra)				Opponent Snyman, J (Jan-Hendrik)

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 ,H (Hj)	3	1	-141.7	1	0	-425	1	1	425	1	0	-425
1	De Villiers ,H (Hj)	3	1350.2	1208.6	1	1282.7	925.2	1	1200	1775.2	1	1258.8	925.2
2	Lottering ,JG (Gerhard)	2	2	425	0	0	0	2	2	425	0	0	0
2	Lottering ,JG (Gerhard)	2	1105.4	1530.4	0	0	0	2	599.6	1530.4	0	0	0
3	Mitchell ,V (Vanadium)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Mitchell ,V (Vanadium)	2	1263.1	838.1	0	0	0	2	1189.6	838.1	0	0	0
4	Melville ,J (Jason)	2	0	-425	0	0	0	2	0	-425	0	0	0
4	Melville ,J (Jason)	2	1151.4	726.4	0	0	0	2	939.5	726.4	0	0	0
5	Els ,C (Christiaan)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
5	Els ,C (Christiaan)	2	1297.7	1510.2	0	0	0	2	1207.6	1510.2	0	0	0
6	Myburgh ,B (Brendan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Myburgh ,B (Brendan)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Vermeulen ,D (Dian)	1	1	425	1	1	425	0	0	0	0	0	0
7	Vermeulen ,D (Dian)	1	1340.4	1765.4	1	1355.3	1765.4	0	0	0	0	0	0
8	Karrani ,Z (Ziwan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Karrani ,Z (Ziwan)	1	790.2	1215.2	1	815.6	1215.2	0	0	0	0	0	0
9	Alexander ,D (Darrion)	1	1	425	1	1	425	0	0	0	0	0	0
9	Alexander ,D (Darrion)	1	1136.4	1561.4	1	1134.4	1561.4	0	0	0	0	0	0
10	Du Toit ,T (Tano)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Du Toit ,T (Tano)	1	706.6	281.6	1	637.4	281.6	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

Piek, 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