Chess South Africa Ratings Database

PLAYER PAGE

Personal

Vlietstra, L (Lily)

Chess SA id

2180314659

FIDE id

Date of birth

2018-05-03 (U10)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-11-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1493.8	1497.9	1259	1200
Raw rating	1493.8	1497.9	1259	1200
Weighted rating	1362.5	1373	1209.2	1200
Weighted performance	1450.4	1444.5	0	0
Floor	993.8	997.9	759	700
K-factor	32	32	36	36
Min/Max rating change allowed	109.1	108.5	152.4	165.8
Highest rating	1493.8 2025-11-30	1497.9 2025-09-30	1259 2025-11-30	1200 2025-03-01
Highest raw rating	1493.8 2025-11-30	1497.9 2025-09-30	1259 2025-11-30	1200 2025-03-01
Highest weighted rating	1346.2 2025-11-30	1322.1 2025-09-30	1204.7 2025-11-30	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	0	0	0
New rating	1493.8	1497.9	1259	1200
Analysis
Rating	1493.8	1497.9	1259	1200
Raw rating	1493.8	1497.9	1259	1200
Weighted rating	1362.5	1373	1209.2
Weighted performance	1450.4	1444.5	0
K-factor	32	32	36	36
Floor	993.8	997.9	759	700
Max/Min rating change allowed	109.1	108.5	152.4	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	1493.8	1497.9	1259	1200
New weighted rating	1377.8	1388	1213.6	1200
New weighted performance	1440.6	1434.5	0	0
Temp new rating	1493.8	1497.9	1259	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1493.8	1497.9	1259	1200
New K-factor	32	32	36	36
New floor	993.8	997.9	759	700

Item	Main	Standard	Rapid
	0	0	0
	47	36	11
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	47	36	11

Games since
	Main 47	Standard 36		Rapid 11		Blitz 0
Gender	Female
Age group	U8
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1310		407		99
Female	170		60		13
U8	14		7		5
U8 Female	4		2		1
Standard
	RSA		Province		Region
Overall	1222		337		76
Female	162		57		15
U8	10		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	47	37	78.72	244.1	1271.7	1515.8
Standard	36	30	83.33	283.3	1230.6	1513.9
Rapid	11	7	63.64	115.9	1406	1521.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	47	37	78.72	244.1	1271.7	1515.8
Standard	36	30	83.33	283.3	1230.6	1513.9
Rapid	11	7	63.64	115.9	1406	1521.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1493.8	1497.9	1259	1200
2025-11-30	1493.8	1497.9	1259	1200
2025-11-01	1477.2	1497.9	1200	1200
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
2024-11-01	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	Voories Skaaktoernooi 2025 (O7)	2025-11-08	2025-11-08	Rapid	Eden (WEG)	5	5	4	Yes	Analysis
2	HCPS Invitational Rapid Tournament 2025 (U7)	2025-10-18	2025-10-18	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
3	Western Cape Schools - Top Schools 2025 (U7)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
4	George Top Schools 2025 (U7)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	4	Yes	Analysis
5	Eden Chess Trials 2 2025 (U8)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
6	Eden Schools Chess Trials 1 2025 (U7 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	5	Yes	Analysis
7	George Schools Chess Trials 2 2025 (U7 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
8	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	Barnard ,K (Kara)	4	4	425	3	3	425	1	1	425	0	0	0
1	Barnard ,K (Kara)	4	1244.4	1669.4	3	1218.9	1669.4	1	1200	1669.4	0	0	0
2	Rostoll ,C (Chante)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Rostoll ,C (Chante)	3	1237.8	1379.5	3	1245.6	1379.5	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)	3	2	141.7	2	1	0	1	1	425	0	0	0
4	Jubber ,L (Luan)	3	1392.9	1534.5	2	1389.3	1392.9	1	1200	1817.9	0	0	0
5	Maarman ,R (Ryleigh)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
5	Maarman ,R (Ryleigh)	3	1275.6	1558.9	2	1261.7	1488.1	1	1200	1700.6	0	0	0
6	Damane ,K (Khanya)	3	0	-425	1	0	-425	2	0	-425	0	0	0
6	Damane ,K (Khanya)	3	1391.4	966.4	1	1264.7	966.4	2	1225.5	966.4	0	0	0
7	Anthony ,A (Avia)	2	2	425	1	1	425	1	1	425	0	0	0
7	Anthony ,A (Avia)	2	1242	1667	1	1200	1667	1	1200	1667	0	0	0
8	Baker ,G (Gabby)	2	2	425	1	1	425	1	1	425	0	0	0
8	Baker ,G (Gabby)	2	1242.9	1667.9	1	1200	1667.9	1	1200	1667.9	0	0	0
9	Faruk ,A (Amaar)	2	1	0	1	0	-425	1	1	425	0	0	0
9	Faruk ,A (Amaar)	2	1357.9	1357.9	1	1316	932.9	1	1200	1782.9	0	0	0
10	Hoffmann ,D (Dani�l)	2	1	0	0	0	0	2	1	0	0	0	0
10	Hoffmann ,D (Dani�l)	2	1497.6	1497.6	0	0	0	2	1218	1497.6	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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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms