Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pretorius, S (Stefan)

Chess SA id

1130141653

FIDE id

Date of birth

2013-03-28 (U14)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1176.4	1172.9	1200	1200
Raw rating	1176.4	1172.9	1200	1200
Weighted rating	1173.3	1168.5	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	171.5	172.3	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1176.4	1172.9	1200	1200
Analysis
Rating	1176.4	1172.9	1200	1200
Raw rating	1176.4	1172.9	1200	1200
Weighted rating	1173.3	1168.5	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	171.5	172.3	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	1176.4	1172.9	1200	1200
New weighted rating	1173.6	1168.9	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1176.4	1172.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1176.4	1172.9	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	4	4
	0	0
	0	0
	5	5
	0	0
History	9	9

Games since
	Main 4	Standard 4		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Tshwane (GTP)
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	4	2	50	0	1201.3	1201.3
Standard	4	2	50	0	1201.3	1201.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	4	44.44	-47.2	1164.9	1117.7
Standard	9	4	44.44	-47.2	1164.9	1117.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1176.4	1172.9	1200	1200
2025-09-30	1176.4	1172.9	1200	1200
2025-09-01	1176.4	1172.9	1200	1200
2025-08-01	1172.4	1167.2	1200	1200
2025-07-01	1172.4	1167.2	1200	1200
2025-06-01	1172.4	1167.2	1200	1200
2025-05-01	1172.4	1167.2	1200	1200
2025-04-01	1172.4	1167.2	1200	1200
2025-03-01	1172.4	1167.2	1200	1200
2025-02-01	1172.4	1167.2	1200	1200
2025-01-01	1172.4	1167.2	1200	1200
2024-12-01	1172.4	1167.2	1200	1200
2024-11-01	1172.4	1167.2	1200	1200
2024-10-01	1172.4	1167.2	1200	1200
2024-09-01	1172.4	1167.2	1200	1200
2024-08-01	1172.4	1167.2	1200	1200
2024-07-01	1172.4	1167.2	1200	1200
2024-09-01	1172.4	1167.2	1200	1200
2024-05-01	1172.4	1167.2	1200	1200
2024-04-01	1172.4	1167.2	1200	1200
2024-03-01	1172.4	1167.2	1200	1200
2024-02-01	1172.4	1167.2	1200	1200
2024-01-01	1172.4	1167.2	1200	1200
2023-12-01	1172.4	1167.2	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	2025 Tshwane South School District CLOSED League Championship (U13B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane South School District CLOSED League Championship (U13B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2022 Milos Ristic Open Chess Tournament (E)	2022-05-28	2022-05-28	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Omano-Edigheji, Z (Zipho)				Opponent Lewarne, M (Mila)
2	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 5	type Standard	result 1	date 2022-05-28	rnd 5	type Standard	result 1
		Opponent Ottermann, A (Ayla)				Opponent Ottermann, A (Ayla)
3	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Botha, G (Gregory)				Opponent Botha, G (Gregory)

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Omano-Edigheji, Z (Zipho)				Opponent Lewarne, M (Mila)
2	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 5	type Standard	result 1	date 2022-05-28	rnd 5	type Standard	result 1
		Opponent Ottermann, A (Ayla)				Opponent Ottermann, A (Ayla)
3	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Botha, G (Gregory)				Opponent Botha, G (Gregory)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Omano-Edigheji, Z (Zipho)				Opponent Lewarne, M (Mila)
2	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 5	type Standard	result 1	date 2022-05-28	rnd 5	type Standard	result 1
		Opponent Ottermann, A (Ayla)				Opponent Ottermann, A (Ayla)
3	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Botha, G (Gregory)				Opponent Botha, G (Gregory)

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Omano-Edigheji, Z (Zipho)				Opponent Lewarne, M (Mila)
2	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 5	type Standard	result 1	date 2022-05-28	rnd 5	type Standard	result 1
		Opponent Ottermann, A (Ayla)				Opponent Ottermann, A (Ayla)
3	1	Tournament 2022 Milos Ristic Open Chess Tournament				Tournament 2022 Milos Ristic Open Chess Tournament
		date 2022-05-28	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Botha, G (Gregory)				Opponent Botha, G (Gregory)

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	Loubser ,L (Lara)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Loubser ,L (Lara)	1	1077.2	652.2	1	1082.8	652.2	0	0	0	0	0	0
2	Omano-Edigheji ,Z (Zipho)	1	1	425	1	1	425	0	0	0	0	0	0
2	Omano-Edigheji ,Z (Zipho)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Lewarne ,M (Mila)	1	1	425	1	1	425	0	0	0	0	0	0
3	Lewarne ,M (Mila)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Scheepers ,T (Tristian)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Scheepers ,T (Tristian)	1	1190	765	1	1186	765	0	0	0	0	0	0
5	Ottermann ,A (Ayla)	1	1	425	1	1	425	0	0	0	0	0	0
5	Ottermann ,A (Ayla)	1	1097.5	1522.5	1	1122	1522.5	0	0	0	0	0	0
6	Jooste ,O (Oliver)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Jooste ,O (Oliver)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Pienaar ,D (Declan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Pienaar ,D (Declan)	1	1205.3	780.3	1	1206	780.3	0	0	0	0	0	0
8	Van Vuuren ,A (Adam)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Vuuren ,A (Adam)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Botha ,G (Gregory)	1	1	425	1	1	425	0	0	0	0	0	0
9	Botha ,G (Gregory)	1	1114.5	1539.5	1	1108	1539.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Pretorius, S (Stefan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms