Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mostert, S (Sian)

Chess SA id

106061673

FIDE id

Date of birth

2006-10-31 (U20)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1109	1109.7	813.4	813.4
Raw rating	1109	1109.7	813.4	813.4
Weighted rating	1109	1109.7	813.4	813.4
Weighted performance	732.1	727.3	0	0
Floor	609	609.7	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	188.8	188.6	287.6	287.6
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1109 2024-02-01	1109.7 2024-02-01	813.4 2024-02-01	813.4 2024-02-01
Highest weighted rating	1109 2024-11-01	1109.7 2024-11-01	813.4 2024-11-01	813.4 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1109	1109.7	813.4	813.4
Analysis
Rating	1109	1109.7	813.4	813.4
Raw rating	1109	1109.7	813.4	813.4
Weighted rating	1109	1109.7	813.4
Weighted performance	732.1	727.3	0
K-factor	40	40	40	40
Floor	609	609.7	500	500
Max/Min rating change allowed	188.8	188.6	287.6	287.6
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	1109	1109.7	813.4	813.4
New weighted rating	1109	1109.7	813.4	813.4
New weighted performance	725.3	720.6	0	0
Temp new rating	1109	1109.7	813.4	813.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1109	1109.7	813.4	813.4
New K-factor	40	40	40	40
New floor	609	609.7	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	20	20	0
	0	0	0
	0	0	0
History	207	192	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Eden (WEG)
Province	Western Cape (WC)
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	47	24	51.06	9	1048.8	1057.9
Standard	47	24	51.06	9	1048.8	1057.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1109	1109.7	813.4	813.4
2025-09-30	1109	1109.7	813.4	813.4
2025-09-01	1109	1109.7	813.4	813.4
2025-08-01	1109	1109.7	813.4	813.4
2025-07-01	1109	1109.7	813.4	813.4
2025-06-01	1109	1109.7	813.4	813.4
2025-05-01	1109	1109.7	813.4	813.4
2025-04-01	1109	1109.7	813.4	813.4
2025-03-01	1109	1109.7	813.4	813.4
2025-02-01	1109	1109.7	813.4	813.4
2025-01-01	1109	1109.7	813.4	813.4
2024-12-01	1109	1109.7	813.4	813.4
2024-11-01	1109	1109.7	813.4	813.4
2024-10-01	1109	1109.7	813.4	813.4
2024-09-01	1109	1109.7	813.4	813.4
2024-08-01	1109	1109.7	813.4	813.4
2024-07-01	1109	1109.7	813.4	813.4
2024-09-01	1109	1109.7	813.4	813.4
2024-05-01	1109	1109.7	813.4	813.4
2024-04-01	1109	1109.7	813.4	813.4
2024-03-01	1109	1109.7	813.4	813.4
2024-02-01	1109	1109.7	813.4	813.4
2024-01-01	1109	1109.7	813.4	813.4
2023-12-01	1109	1109.7	813.4	813.4

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	Eden Trails 1 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	2	Yes	Analysis
2	George Chess Trials 3 2023 (U17 Boys)	2023-02-25	2023-02-25	Standard	Eden (WEG)	5	5	2	Yes	Analysis
3	George Chess Trials 2 2023 (U17 Boys)	2023-02-11	2023-02-11	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
4	George Chess Trials 1 2023 (U17 Boys)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	EDENSC Closed 3 2018 (U14 Open)	2018-05-12	2018-05-12	Standard	Eden (WEG)	5	5	3	Yes	Analysis
6	EDENSC Closed 2 2018 (U14 Open)	2018-04-14	2018-04-14	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	George Trails 2 2018 (U14)	2018-02-10	2018-02-10	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Trails 1 2018 (U14)	2018-01-27	2018-01-27	Standard	Eden (WEG)	5	5	4	Yes	Analysis
9	South African Junior Team Championships 2017 (U12B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-02-10	rnd 2	type Standard	result 1
		Opponent Bosch, E (Estee)				Opponent Pullen, L (Liam)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Arendse, J (Jaden Lee)				Opponent Beukes, R (Rayneqo)
3	2	Tournament George Chess Trials 3 2023				Tournament George Chess Trials 3 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 0.5
		Opponent Hlekiso, S (Sinqwo)				Opponent Miggels, A (Alaric)

#	Games	Start				End
1	4	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-02-10	rnd 2	type Standard	result 1
		Opponent Bosch, E (Estee)				Opponent Pullen, L (Liam)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Arendse, J (Jaden Lee)				Opponent Beukes, R (Rayneqo)
3	2	Tournament George Chess Trials 3 2023				Tournament George Chess Trials 3 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 0.5
		Opponent Hlekiso, S (Sinqwo)				Opponent Miggels, A (Alaric)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-02-10	rnd 2	type Standard	result 1
		Opponent Bosch, E (Estee)				Opponent Pullen, L (Liam)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Arendse, J (Jaden Lee)				Opponent Beukes, R (Rayneqo)
3	2	Tournament George Chess Trials 2 2023				Tournament George Chess Trials 2 2023
		date 2023-02-11	rnd 2	type Standard	result 1	date 2023-02-11	rnd 3	type Standard	result 1
		Opponent Fourie, J (Janco)				Opponent Rossouw, H (Heinrich)

#	Games	Start				End
1	4	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-02-10	rnd 2	type Standard	result 1
		Opponent Bosch, E (Estee)				Opponent Pullen, L (Liam)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Arendse, J (Jaden Lee)				Opponent Beukes, R (Rayneqo)
3	2	Tournament George Chess Trials 2 2023				Tournament George Chess Trials 2 2023
		date 2023-02-11	rnd 2	type Standard	result 1	date 2023-02-11	rnd 3	type Standard	result 1
		Opponent Fourie, J (Janco)				Opponent Rossouw, H (Heinrich)

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	Smit ,K (Kevin)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Smit ,K (Kevin)	2	1152.9	727.9	2	1150.8	727.9	0	0	0	0	0	0
2	Rossouw ,H (Heinrich)	2	2	425	2	2	425	0	0	0	0	0	0
2	Rossouw ,H (Heinrich)	2	1180.9	1605.9	2	1175.4	1605.9	0	0	0	0	0	0
3	Kasper ,V (Vernon)	2	2	425	2	2	425	0	0	0	0	0	0
3	Kasper ,V (Vernon)	2	654	1079	2	667.6	1079	0	0	0	0	0	0
4	Guyo ,I (Isheanesu)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Guyo ,I (Isheanesu)	2	1224.5	799.5	2	1226.2	799.5	0	0	0	0	0	0
5	Ehlers ,R (Ruben)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Ehlers ,R (Ruben)	2	1435.7	1223.2	2	1413.8	1223.2	0	0	0	0	0	0
6	Chang ,S (Sebastian)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Chang ,S (Sebastian)	1	859.2	434.2	1	859.2	434.2	0	0	0	0	0	0
7	Claassen ,R (Ruwaldo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Claassen ,R (Ruwaldo)	1	1402.1	977.1	1	1388.7	977.1	0	0	0	0	0	0
8	Bosch ,E (Estee)	1	1	425	1	1	425	0	0	0	0	0	0
8	Bosch ,E (Estee)	1	500	925	1	500	925	0	0	0	0	0	0
9	Pullen ,L (Liam)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pullen ,L (Liam)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Koen ,I (Ivan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Koen ,I (Ivan)	1	1238.2	813.2	1	1246.6	813.2	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

Mostert, S (Sian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms