Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Kock, S (Sebastian)

Chess SA id

1090150650

FIDE id

Date of birth

2009-02-13 (U18)

Gender

Male

Region

Overberg (WOS)

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

1169.5

Item	Main	Standard	Rapid	Blitz
Rating	1230.6	1226.3	1213	1200
Raw rating	1230.6	1226.3	1213	1200
Weighted rating	1187.5	1177.5	1201.7	1200
Weighted performance	1162	1102	0	0
Floor	730.6	726.3	713	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.8	159.7	162.8	165.8
Highest rating	1230.6 2025-09-01	1237.6 2024-07-01	1239.4 2023-02-01	1200 2018-10-01
Highest raw rating	1230.6 2025-09-01	1226.3 2025-09-01	1213 2025-03-01	1200 2024-03-01
Highest weighted rating	1204.3 2018-10-01	1200 2018-10-01	1213 2024-02-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1237.6 2024-07-01	1239.4 2023-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1230.6	1226.3	1213	1200
Analysis
Rating	1230.6	1226.3	1213	1200
Raw rating	1230.6	1226.3	1213	1200
Weighted rating	1187.5	1177.5	1201.7
Weighted performance	1162	1102	0
K-factor	36	36	36	36
Floor	730.6	726.3	713	700
Max/Min rating change allowed	158.8	159.7	162.8	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	1230.6	1226.3	1213	1200
New weighted rating	1192.2	1182.8	1202.9	1200
New weighted performance	1161.6	1101.6	0	0
Temp new rating	1230.6	1226.3	1213	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1230.6	1226.3	1213	1200
New K-factor	36	36	36	36
New floor	730.6	726.3	713	700

Item	Main	Standard	Rapid
	0	0	0
	16	10	6
	19	14	5
	15	5	10
	0	0	0
	0	0	0
History	50	29	21

Games since
	Main 35	Standard 24		Rapid 11		Blitz 0
Gender	Male
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	16	9	56.25	53.1	1217.7	1270.8
Standard	10	5.5	55	42.5	1232.3	1274.8
Rapid	6	3.5	58.33	70.8	1193.3	1264.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	50	24	48	-17	1212.6	1195.6
Standard	29	13.5	46.55	-29.3	1227.5	1198.2
Rapid	21	10.5	50	0	1191.9	1191.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1230.6	1226.3	1213	1200
2025-09-01	1230.6	1226.3	1213	1200
2025-08-01	1195.3	1182	1213	1200
2025-07-01	1195.3	1182	1213	1200
2025-06-01	1195.3	1182	1213	1200
2025-05-01	1195.3	1182	1213	1200
2025-04-01	1195.3	1182	1213	1200
2025-03-01	1204.3	1188.8	1213	1200
2025-02-01	1191.3	1188.8	1190.5	1200
2025-01-01	1191.3	1188.8	1186.5	1200
2024-12-01	1191.3	1188.8	1186.5	1200
2024-11-01	1191.3	1188.8	1186.5	1200
2024-10-01	1191.3	1188.8	1186.5	1200
2024-09-01	1166.7	1161.6	1186.5	1200
2024-08-01	1166.7	1161.6	1186.5	1200
2024-07-01	1108.9	1086.8	1186.5	1200
2024-06-01	1108.9	1086.8	1186.5	1200
2024-08-01	1108.9	1086.8	1186.5	1200
2024-04-01	1108.9	1086.8	1186.5	1200
2024-03-01	1147.7	1133.2	1186.5	1200
2024-02-01	1153	1133.2	1202	1200
2024-01-01	1153	1133.2	1202	1200
2023-12-01	1153	1133.2	1202	1200
2023-11-01	1153	1133.2	1202	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	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U17 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U17 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
4	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
5	Overberg Schools - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	3	3	Yes	Analysis
6	Curro Hermanus Freedom Day Rapid 2024 (U15)	2024-04-27	2024-04-27	Rapid	Overberg (WOS)	5	0	0	No	Analysis
7	Overberg High Schools Trails 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
8	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
9	Overberg High School Closed 2023 (U15 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
10	Overberg High Schools Trails 2023 (U15)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
11	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Top Schools 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Van Den Berg, R (Rhinus)				Opponent Pretorius, R (Ruald)
2	5	Tournament Overberg High Schools Trails 2023				Tournament Overberg High School Closed 2023
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Rabie, E (Eduan)				Opponent Aploon, G (Geraldo)
3	4	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Bebe, C (Chumani)				Opponent Muhirwa, T (Tristan)

#	Games	Start				End
1	5	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Top Schools 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Van Den Berg, R (Rhinus)				Opponent Pretorius, R (Ruald)
2	4	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Bebe, C (Chumani)				Opponent Muhirwa, T (Tristan)
3	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 3	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Bantam, J (Jaden-Leigh)				Opponent Bantam, J (Jaden-Leigh)

#	Games	Start				End
1	5	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Rabie, E (Eduan)				Opponent Du Plessis, G (Gabriel)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 0.5
		Opponent Carelse, A (Anthony)				Opponent Flippies, S (Shaun)
3	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Schrader, D (Deno)				Opponent Schrader, D (Deno)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Bebe, C (Chumani)				Opponent Muhirwa, T (Tristan)
2	3	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Top Schools 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Van Den Berg, R (Rhinus)				Opponent Du Plessis, G (Gabriel)
3	2	Tournament Western Cape Top Schools Championship 2024				Tournament Overberg Schools - HS Trials 2025
		date 2024-09-01	rnd 6	type Standard	result 1	date 2025-02-22	rnd 1	type Rapid	result 1
		Opponent Daniels, C (Colsten)				Opponent Skippers, C (Clyde)

#	Games	Start				End
1	4	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Bebe, C (Chumani)				Opponent Muhirwa, T (Tristan)
2	3	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Top Schools 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Van Den Berg, R (Rhinus)				Opponent Du Plessis, G (Gabriel)
3	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Pretorius, R (Ruald)				Opponent Pretorius, R (Ruald)

#	Games	Start				End
1	2	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-24	rnd 5	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Groenewald, M (Miguel)				Opponent Du Plessis, G (Gabriel)
2	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Schrader, D (Deno)				Opponent Schrader, D (Deno)
3	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Carelse, A (Anthony)				Opponent Carelse, A (Anthony)

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	Du Plessis ,G (Gabriel)	2	2	425	1	1	425	1	1	425	0	0	0
1	Du Plessis ,G (Gabriel)	2	1191.6	1616.6	1	1200	1616.6	1	1200	1616.6	0	0	0
2	Du Plessis ,MA (Matthys Armand)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Du Plessis ,MA (Matthys Armand)	2	1267.8	842.8	1	1188.6	842.8	1	1212.4	842.8	0	0	0
3	Matinywa ,T (Thobani)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Matinywa ,T (Thobani)	2	1335.9	910.9	1	1291.7	910.9	1	1238.4	910.9	0	0	0
4	Pekeur ,N (Nicole)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
4	Pekeur ,N (Nicole)	2	1143.2	930.8	0	0	0	2	1180.4	930.8	0	0	0
5	Witbooi ,G (Gere)	2	1	0	0	0	0	2	1	0	0	0	0
5	Witbooi ,G (Gere)	2	1198.2	1198.2	0	0	0	2	1219.3	1198.2	0	0	0
6	Daniels ,C (Colsten)	1	1	425	1	1	425	0	0	0	0	0	0
6	Daniels ,C (Colsten)	1	1232.2	1657.2	1	1235.8	1657.2	0	0	0	0	0	0
7	Sonaba ,L (Libhongo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Sonaba ,L (Libhongo)	1	1270.5	845.5	1	1207.5	845.5	0	0	0	0	0	0
8	Stander ,H (Hendrik)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Stander ,H (Hendrik)	1	1461.3	1036.3	1	1464.2	1036.3	0	0	0	0	0	0
9	Aploon ,G (Geraldo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Aploon ,G (Geraldo)	1	1202.2	1627.2	1	1200	1627.2	0	0	0	0	0	0
10	Pappas ,N (Nathan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Pappas ,N (Nathan)	1	1155.1	1580.1	1	1160.4	1580.1	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

De Kock, 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