Chess South Africa Ratings Database

PLAYER PAGE

Personal

Heyns, S (Sebastiaan)

Chess SA id

1130310486

FIDE id

Date of birth

2013-04-17 (U14)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1229.2	1231.6	1200	1200
Raw rating	1229.2	1231.6	1200	1200
Weighted rating	1222.3	1226	1200	1200
Weighted performance	0	0	0	0
Floor	744.1	752.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	159.1	158.5	165.8	165.8
Highest rating	1340.7 2024-09-01	1347.5 2024-09-01	1200 2024-09-01	1200 2024-09-01
Highest raw rating	1244.1 2025-06-01	1252.8 2025-06-01	1200 2024-09-01	1200 2024-09-01
Highest weighted rating	1244.1 2024-10-01	1252.8 2024-10-01	1200 2024-09-01	1200 2024-09-01
Highest weighted performance	1340.7 2024-09-01	1347.5 2024-09-01	1200 2024-09-01	1200 2024-09-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1229.2	1231.6	1200	1200
Analysis
Rating	1229.2	1231.6	1200	1200
Raw rating	1229.2	1231.6	1200	1200
Weighted rating	1222.3	1226	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	744.1	752.8	700	700
Max/Min rating change allowed	159.1	158.5	165.8	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	1229.2	1231.6	1200	1200
New weighted rating	1223.5	1227.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1229.2	1231.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1229.2	1231.6	1200	1200
New K-factor	36	36	36	36
New floor	744.1	752.8	700	700

Item	Main	Standard
	0	0
	10	10
	10	10
	0	0
	0	0
	0	0
History	20	20

Games since
	Main 20	Standard 20		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
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	10	5.5	55	42.5	1255.9	1298.4
Standard	10	5.5	55	42.5	1255.9	1298.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	20	9.5	47.5	-21.2	1276.5	1255.3
Standard	20	9.5	47.5	-21.2	1276.5	1255.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1229.2	1231.6	1200	1200
2025-11-30	1229.2	1231.6	1200	1200
2025-11-01	1229.2	1231.6	1200	1200
2025-09-30	1244.1	1252.8	1200	1200
2025-09-01	1244.1	1252.8	1200	1200
2025-08-01	1244.1	1252.8	1200	1200
2025-07-01	1244.1	1252.8	1200	1200
2025-06-01	1244.1	1252.8	1200	1200
2025-05-01	1202.8	1203.6	1200	1200
2025-04-01	1202.8	1203.5	1200	1200
2025-03-01	1202.7	1203.4	1200	1200
2025-02-01	1202.6	1203.2	1200	1200
2025-01-01	1202.5	1203.1	1200	1200
2024-12-01	1202.5	1203.1	1200	1200
2024-11-01	1202.5	1203.1	1200	1200
2024-10-01	1227.6	1234.8	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200

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	2025 Gauteng Schools Provincial Individual Chess Championship (U13 Boys)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
2	D5 Anker 2025 (U13 Boys)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	Gauteng Top Schools 2024 (U11 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
4	Gauteng Schools Individuals Finals 2024 (U11 Boys)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament D5 Anker 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Du Plessis, M (Markus)				Opponent Dippenaar, E (Ethan)
2	3	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 3	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Mokhabela, D (Dipolelo)				Opponent Nzimande, S (Siphesihle)
3	1	Tournament 2025 Gauteng Schools Provincial Individual Chess Championship				Tournament 2025 Gauteng Schools Provincial Individual Chess Championship
		date 2025-09-27	rnd 4	type Standard	result 0.5	date 2025-09-27	rnd 4	type Standard	result 0.5
		Opponent Tsiane, T (Tebogo)				Opponent Tsiane, T (Tebogo)

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament D5 Anker 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Du Plessis, M (Markus)				Opponent Dippenaar, E (Ethan)
2	3	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 3	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Mokhabela, D (Dipolelo)				Opponent Nzimande, S (Siphesihle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament D5 Anker 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Du Plessis, M (Markus)				Opponent Dippenaar, E (Ethan)
2	3	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 3	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Mokhabela, D (Dipolelo)				Opponent Nzimande, S (Siphesihle)

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament D5 Anker 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Du Plessis, M (Markus)				Opponent Dippenaar, E (Ethan)
2	3	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 3	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Mokhabela, D (Dipolelo)				Opponent Nzimande, S (Siphesihle)

No games found.

#	Games	Start				End

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	Black ,K (Kyiron)	1	1	425	1	1	425	0	0	0	0	0	0
1	Black ,K (Kyiron)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Kemp ,O (Owen)	1	1	425	1	1	425	0	0	0	0	0	0
2	Kemp ,O (Owen)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Haupt ,A (Abigail)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Haupt ,A (Abigail)	1	1458.1	1033.1	1	1463.8	1033.1	0	0	0	0	0	0
4	Grahan ,T (Tylo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Grahan ,T (Tylo)	1	1525.8	1100.8	1	1524.5	1100.8	0	0	0	0	0	0
5	Lesia ,M (Matshidiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Lesia ,M (Matshidiso)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Botha ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Botha ,L (Logan)	1	1315.9	890.9	1	1320.5	890.9	0	0	0	0	0	0
7	Smuts ,W (Wessel)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Smuts ,W (Wessel)	1	1148.9	723.9	1	1140.1	723.9	0	0	0	0	0	0
8	Nwokwe ,C (Chuwudumebi)	1	1	425	1	1	425	0	0	0	0	0	0
8	Nwokwe ,C (Chuwudumebi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Du Plessis ,M (Markus)	1	1	425	1	1	425	0	0	0	0	0	0
9	Du Plessis ,M (Markus)	1	1188.6	1613.6	1	1185.6	1613.6	0	0	0	0	0	0
10	Mhlongo ,N (Nhlakanipho)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mhlongo ,N (Nhlakanipho)	1	1371.8	946.8	1	1344.8	946.8	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

Heyns, S (Sebastiaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms