Chess South Africa Ratings Database

PLAYER PAGE

Personal

Vlietstra, L (Lily)

Chess SA id

2180314659

FIDE id

Date of birth

2018-05-03 (U8)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1459.5

Item	Main	Standard	Rapid	Blitz
Rating	1488.5	1497.9	1200	1200
Raw rating	1484.1	1497.9	1200	1200
Weighted rating	1312.2	1322.1	1200	1200
Weighted performance	1488.5	1493.8	0	0
Floor	984.1	997.9	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	110.6	108.5	165.8	165.8
Highest rating	1488.5 2025-09-30	1497.9 2025-09-30	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1484.1 2025-09-30	1497.9 2025-09-30	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1312.2 2025-09-30	1322.1 2025-09-30	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	1488.5 2025-09-30	1493.8 2025-09-30	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	0	0	0
New rating	1488	1497.9	1200	1200
Analysis
Rating	1488.5	1497.9	1200	1200
Raw rating	1484.1	1497.9	1200	1200
Weighted rating	1312.2	1322.1	1200
Weighted performance	1488.5	1493.8	0
K-factor	32	32	36	36
Floor	984.1	997.9	700	700
Max/Min rating change allowed	110.6	108.5	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	1484.1	1497.9	1200	1200
New weighted rating	1329.6	1340	1200	1200
New weighted performance	1488	1493.2	0	0
Temp new rating	1488	1497.9	1200	1200
Temp new rating +/-	-0.5	0	0	0
Final new rating +/-	-0.5	0	0	0
New rating	1488	1497.9	1200	1200
New K-factor	32	32	36	36
New floor	984.1	997.9	700	700

Item	Main	Standard
	0	0
	36	36
	0	0
	0	0
	0	0
	0	0
History	36	36

Games since
	Main 36	Standard 36		Rapid 0		Blitz 0
Gender	Female
Age group	U8
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	1189		322		80
Female	166		59		15
U8	11		2		1
U8 Female	3		1		1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-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	36	30	83.33	283.3	1230.6	1513.9
Standard	36	30	83.33	283.3	1230.6	1513.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	36	30	83.33	283.3	1230.6	1513.9
Standard	36	30	83.33	283.3	1230.6	1513.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1484.1	1497.9	1200	1200
2025-09-01	1442.2	1445.7	1200	1200
2025-08-01	1442.2	1445.7	1200	1200
2025-07-01	1369.7	1392.5	1200	1200
2025-06-01	1369.7	1392.5	1200	1200
2025-05-01	1369.7	1392.5	1200	1200
2025-04-01	1391.9	1427	1200	1200
2025-03-01	1335.6	1363.3	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	Western Cape Schools - Top Schools 2025 (U7)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
2	George Top Schools 2025 (U7)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U8)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U7 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	5	Yes	Analysis
5	George Schools Chess Trials 2 2025 (U7 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
6	George Schools Chess Trials 1 2025 (U7 Gils)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U7)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
2	George Top Schools 2025 (U7)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U8)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U7 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	5	Yes	Analysis
5	George Schools Chess Trials 2 2025 (U7 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
6	George Schools Chess Trials 1 2025 (U7 Gils)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	5	Yes	Analysis

#	Games	Start				End
1	8	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-15	rnd 3	type Standard	result 1
		Opponent Guze, K (Khayone)				Opponent Naicker, S (Shivani)
2	7	Tournament George Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Stapelberg, M (Mark)				Opponent Kock, R (Reese)
3	7	Tournament Eden Chess Trials 2 2025				Tournament George Top Schools 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Le Roux, F (Franco)				Opponent Blom, L (Luca)

#	Games	Start				End
1	8	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-15	rnd 3	type Standard	result 1
		Opponent Guze, K (Khayone)				Opponent Naicker, S (Shivani)
2	7	Tournament George Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Stapelberg, M (Mark)				Opponent Kock, R (Reese)
3	7	Tournament Eden Chess Trials 2 2025				Tournament George Top Schools 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Le Roux, F (Franco)				Opponent Blom, L (Luca)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-15	rnd 3	type Standard	result 1
		Opponent Guze, K (Khayone)				Opponent Naicker, S (Shivani)
2	7	Tournament George Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Stapelberg, M (Mark)				Opponent Kock, R (Reese)
3	7	Tournament George Schools Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-03-15	rnd 1	type Standard	result 1
		Opponent Baker, G (Gabby)				Opponent Appiah Baden, E (Emily Joy)

#	Games	Start				End
1	8	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-15	rnd 3	type Standard	result 1
		Opponent Guze, K (Khayone)				Opponent Naicker, S (Shivani)
2	7	Tournament George Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Stapelberg, M (Mark)				Opponent Kock, R (Reese)
3	7	Tournament George Schools Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-03-15	rnd 1	type Standard	result 1
		Opponent Baker, G (Gabby)				Opponent Appiah Baden, E (Emily Joy)

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	Rostoll ,C (Chante)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Rostoll ,C (Chante)	3	1237.8	1379.5	3	1245.6	1379.5	0	0	0	0	0	0
2	Barnard ,K (Kara)	3	3	425	3	3	425	0	0	0	0	0	0
2	Barnard ,K (Kara)	3	1215.7	1640.7	3	1218.9	1640.7	0	0	0	0	0	0
3	Kock ,R (Reese)	3	3	425	3	3	425	0	0	0	0	0	0
3	Kock ,R (Reese)	3	1200.6	1625.6	3	1202.5	1625.6	0	0	0	0	0	0
4	Jubber ,L (Luan)	2	1	0	2	1	0	0	0	0	0	0	0
4	Jubber ,L (Luan)	2	1380.3	1380.3	2	1389.3	1380.3	0	0	0	0	0	0
5	Maarman ,R (Ryleigh)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
5	Maarman ,R (Ryleigh)	2	1250.7	1463.2	2	1261.7	1463.2	0	0	0	0	0	0
6	Appiah Baden ,E (Emily Joy)	1	1	425	1	1	425	0	0	0	0	0	0
6	Appiah Baden ,E (Emily Joy)	1	1198.8	1623.8	1	1198.6	1623.8	0	0	0	0	0	0
7	Smit ,J (Jovan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Smit ,J (Jovan)	1	1199.6	1624.6	1	1199.6	1624.6	0	0	0	0	0	0
8	Baker ,G (Gabby)	1	1	425	1	1	425	0	0	0	0	0	0
8	Baker ,G (Gabby)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Schutte ,L (Luan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Schutte ,L (Luan)	1	1194.9	1619.9	1	1195.2	1619.9	0	0	0	0	0	0
10	Raaths ,D (Dylan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Raaths ,D (Dylan)	1	1241.4	1666.4	1	1270.5	1666.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Vlietstra, L (Lily)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms