Chess South Africa Ratings Database

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Personal

Potgieter, L (Lian)

Chess SA id

1120118021

FIDE id

Date of birth

2012-10-25 (U14)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

32.1

Junior GPX Points

1219.8

Item	Main	Standard	Rapid	Blitz
Rating	1258.3	1206	1283.9	1200
Raw rating	1248.6	1190	1283.9	1200
Weighted rating	1231.9	1190.6	1221.7	1200
Weighted performance	1258.3	1206	1235.7	0
Floor	819.8	751.9	783.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	154.7	168.2	147.1	165.8
Highest rating	1319.8 2025-09-01	1251.9 2025-08-01	1283.9 2025-09-01	1200 2018-10-01
Highest raw rating	1319.8 2025-09-01	1251.9 2025-08-01	1283.9 2025-09-01	1200 2024-02-01
Highest weighted rating	1285 2018-10-01	1215.6 2018-10-01	1249 2018-10-01	1200 2018-10-01
Highest weighted performance	1306 2025-09-01	1206 2025-11-01	1264 2025-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-7.6	-7.4	0	0
New rating	1250.7	1198.5	1283.9	1200
Analysis
Rating	1258.3	1206	1283.9	1200
Raw rating	1248.6	1190	1283.9	1200
Weighted rating	1231.9	1190.6	1221.7
Weighted performance	1258.3	1206	1235.7
K-factor	36	36	36	36
Floor	819.8	751.9	783.9	700
Max/Min rating change allowed	154.7	168.2	147.1	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	1248.6	1190	1283.9	1200
New weighted rating	1235.8	1192.1	1228.6	1200
New weighted performance	1250.7	1198.5	1227.8	0
Temp new rating	1250.7	1198.5	1283.9	1200
Temp new rating +/-	-7.6	-7.4	0	0
Final new rating +/-	-7.6	-7.4	0	0
New rating	1250.7	1198.5	1283.9	1200
New K-factor	36	36	36	36
New floor	819.8	751.9	783.9	700

Item	Main	Standard	Rapid
	0	0	0
	41	24	17
	6	0	6
	24	11	13
	12	6	6
	0	0	0
History	94	46	48

Games since
	Main 47	Standard 24		Rapid 23		Blitz 0
Gender	Male
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3645		1208		171
Male	2795		880		121
U14	692		227		34
U14 Male	495		150		22
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	1155		587		103
Male	937		466		78
U14	262		138		30
U14 Male	189		99		21
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	41	21	51.22	10.4	1333.3	1343.6
Standard	24	9.5	39.58	-88.5	1382.1	1293.5
Rapid	17	11.5	67.65	150	1264.4	1414.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	94	42	44.68	-45.2	1269.8	1224.5
Standard	46	18	39.13	-92.4	1309.5	1217.1
Rapid	48	24	50	0	1231.6	1231.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1248.6	1190	1283.9	1200
2025-09-30	1319.8	1251.9	1283.9	1200
2025-09-01	1319.8	1251.9	1283.9	1200
2025-08-01	1301.9	1251.9	1249	1200
2025-07-01	1280.5	1215.6	1249	1200
2025-06-01	1280.5	1215.6	1249	1200
2025-05-01	1280.5	1215.6	1249	1200
2025-04-01	1285	1215.6	1247.5	1200
2025-03-01	1276.8	1214.3	1247.5	1200
2025-02-01	1147	1138.4	1161.2	1200
2025-01-01	1147	1138.4	1161.2	1200
2024-12-01	1147	1138.4	1161.2	1200
2024-11-01	1147	1138.4	1161.2	1200
2024-10-01	1147	1138.4	1161.2	1200
2024-09-01	1147	1138.4	1161.2	1200
2024-08-01	1147	1138.4	1161.2	1200
2024-07-01	1147	1138.4	1161.2	1200
2024-09-01	1147	1138.4	1161.2	1200
2024-05-01	1147	1138.4	1161.2	1200
2024-04-01	1147	1138.4	1161.2	1200
2024-03-01	1147	1138.4	1161.2	1200
2024-02-01	1140.9	1138.4	1158.4	1200
2024-01-01	1140.9	1138.4	1158.4	1200
2023-12-01	1140.9	1138.4	1158.4	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	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	0.5	Yes	Analysis
2	Paarl Boys' High School Chess Festival 2025 (Primary Schools)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	0	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	3	Yes	Analysis
4	Cape Winelands Open 2025 (U14)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	Hermanus Chess Club Open 2025 (Development)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4	Yes	Analysis
6	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Overberg Schools & Federation Open 2025 (U13)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	0.5	Yes	Analysis
2	Paarl Boys' High School Chess Festival 2025 (Primary Schools)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	0	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	3	Yes	Analysis
4	Cape Winelands Open 2025 (U14)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	Hermanus Chess Club Open 2025 (Development)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4	Yes	Analysis
6	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Overberg Schools & Federation Open 2025 (U13)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4.5	Yes	Analysis
9	Cape Winelands Schools - PS Trials 1 2024 (U13 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
10	Western Cape Closed Championship 2023 (U12)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
11	GPCA Rapid 2023 (U12)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis
12	Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Boys)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	5	0.5	Yes	Analysis
13	District East Schools Chess Individual Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
14	WP Closed 2022 (U12)	2022-06-16	2022-06-16	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
15	2022 East Dist Individuals (U11)	2022-03-13	2022-03-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
16	2020 East District Individuals (U9)	2020-01-31	2020-02-01	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
17	Curro Durbanville Chess Tournament 2019 (Junior)	2019-08-24	2019-08-24	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Jooste, M (MG)				Opponent Saul, S (Shuhaigan)
2	4	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 4	type Rapid	result 0.5
		Opponent Groenewald, C (Christiaan)				Opponent Prinsloo, L (Lyle)
3	3	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Sauls, L (Lekisha)				Opponent Liedeman, M (Maaike)

#	Games	Start				End
1	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Jooste, M (MG)				Opponent Saul, S (Shuhaigan)
2	3	Tournament WP Closed 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-06-16	rnd 6	type Standard	result 1	date 2023-02-03	rnd 2	type Standard	result 1
		Opponent Malase, I (Ithi)				Opponent Tesselaar, M (Mc)
3	2	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 3	type Standard	result 1
		Opponent Nel, Z (Zoe)				Opponent Majukumba, M (Misokuhle)

#	Games	Start				End
1	4	Tournament Hermanus Chess Club Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-04-12	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Williams, Q (Quelynn)				Opponent Liedeman, M (Maaike)
2	4	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 4	type Rapid	result 0.5
		Opponent Groenewald, C (Christiaan)				Opponent Prinsloo, L (Lyle)
3	3	Tournament Overberg Schools & Federation Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-02-01	rnd 6	type Rapid	result 1	date 2025-04-12	rnd 2	type Rapid	result 1
		Opponent Knapp, L (Liam)				Opponent Wilson, B (Blake)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Jooste, M (MG)				Opponent Saul, S (Shuhaigan)
2	3	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Sauls, L (Lekisha)				Opponent Liedeman, M (Maaike)
3	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 3	type Rapid	result 1
		Opponent Groenewald, C (Christiaan)				Opponent Olivier, D (Dian)

#	Games	Start				End
1	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Jooste, M (MG)				Opponent Saul, S (Shuhaigan)
2	3	Tournament WP Closed 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-06-16	rnd 6	type Standard	result 1	date 2023-02-03	rnd 2	type Standard	result 1
		Opponent Malase, I (Ithi)				Opponent Tesselaar, M (Mc)
3	2	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 3	type Standard	result 1
		Opponent Nel, Z (Zoe)				Opponent Majukumba, M (Misokuhle)

#	Games	Start				End
1	4	Tournament Hermanus Chess Club Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-04-12	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Williams, Q (Quelynn)				Opponent Liedeman, M (Maaike)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-02-01	rnd 6	type Rapid	result 1	date 2025-04-12	rnd 2	type Rapid	result 1
		Opponent Knapp, L (Liam)				Opponent Wilson, B (Blake)
3	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 3	type Rapid	result 1
		Opponent Groenewald, C (Christiaan)				Opponent Olivier, D (Dian)

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	Makumbe ,P (Passion)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Makumbe ,P (Passion)	2	1219.3	794.3	2	1199.6	794.3	0	0	0	0	0	0
2	Koert ,D (Dane)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Koert ,D (Dane)	2	1420.8	995.8	2	1412.6	995.8	0	0	0	0	0	0
3	De Villiers ,C (Christiaan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	De Villiers ,C (Christiaan)	2	1513.2	1088.2	1	1596.2	1088.2	1	1510.3	1088.2	0	0	0
4	Nel ,Z (Zoe)	1	1	425	1	1	425	0	0	0	0	0	0
4	Nel ,Z (Zoe)	1	1129.2	1554.2	1	1144.6	1554.2	0	0	0	0	0	0
5	Van Der Merwe ,S (Schalk Wolf)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Der Merwe ,S (Schalk Wolf)	1	1746	1321	1	1737.1	1321	0	0	0	0	0	0
6	Du Plessis ,B (Bennie)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Du Plessis ,B (Bennie)	1	1305.3	1305.3	1	1217.4	1305.3	0	0	0	0	0	0
7	Brey ,E (Emaad)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Brey ,E (Emaad)	1	1454.5	1029.5	1	1413.3	1029.5	0	0	0	0	0	0
8	Allie ,A (Alliyah)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Allie ,A (Alliyah)	1	1311.9	886.9	1	1282.7	886.9	0	0	0	0	0	0
9	Gxogxa ,K (Khoyane)	1	1	425	1	1	425	0	0	0	0	0	0
9	Gxogxa ,K (Khoyane)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Murugan ,K (Kishan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Murugan ,K (Kishan)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Potgieter, L (Lian)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms