Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, L (Lorelei)

Chess SA id

2040132474

FIDE id

Date of birth

2004-12-20 (Adult)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1223.6	1215.6	1104.8	1200
Raw rating	1223.6	1215.6	1104.8	1200
Weighted rating	1218.7	1212.3	1104.8	1200
Weighted performance	935	932.5	0	0
Floor	795.2	797.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.3	162.2	189.9	165.8
Highest rating	1295.2 2022-05-01	1297.1 2022-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1295.2 2022-05-01	1297.1 2022-05-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1295.2 2023-12-01	1297.1 2023-12-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1283.7 2022-04-01	1278.8 2022-04-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1223.6	1215.6	1104.8	1200
Analysis
Rating	1223.6	1215.6	1104.8	1200
Raw rating	1223.6	1215.6	1104.8	1200
Weighted rating	1218.7	1212.3	1104.8
Weighted performance	935	932.5	0
K-factor	36	36	36	36
Floor	795.2	797.1	700	700
Max/Min rating change allowed	160.3	162.2	189.9	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	1223.6	1215.6	1104.8	1200
New weighted rating	1219.1	1212.6	1104.8	1200
New weighted performance	927.8	925.3	0	0
Temp new rating	1223.6	1215.6	1104.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1223.6	1215.6	1104.8	1200
New K-factor	36	36	36	36
New floor	795.2	797.1	700	700

Item	Main	Standard	Rapid
	0	0	0
	3	3	0
	12	12	0
	21	21	0
	69	69	0
	36	31	5
History	145	140	5

Games since
	Main 23	Standard 23		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult 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	3	0.5	16.67	-283.3	1530.2	1246.9
Standard	3	0.5	16.67	-283.3	1530.2	1246.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	145	57.5	39.66	-87.9	1279.8	1191.9
Standard	140	56.5	40.36	-82	1282.5	1200.6
Rapid	5	1	20	-255	1204	949
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1223.6	1215.6	1104.8	1200
2025-09-30	1218.5	1212.3	1104.8	1200
2025-09-01	1218.5	1212.3	1104.8	1200
2025-08-01	1218.5	1212.3	1104.8	1200
2025-07-01	1218.5	1212.3	1104.8	1200
2025-06-01	1218.5	1212.3	1104.8	1200
2025-05-01	1218.5	1212.3	1104.8	1200
2025-04-01	1218.5	1212.3	1104.8	1200
2025-03-01	1218.5	1212.3	1104.8	1200
2025-02-01	1217	1211.2	1104.8	1200
2025-01-01	1194	1193	1104.8	1200
2024-12-01	1230.7	1222.5	1104.8	1200
2024-11-01	1230.7	1222.5	1104.8	1200
2024-10-01	1230.7	1222.5	1104.8	1200
2024-09-01	1215.9	1209.2	1104.8	1200
2024-08-01	1215.9	1209.2	1104.8	1200
2024-07-01	1215.9	1209.2	1104.8	1200
2024-09-01	1215.9	1209.2	1104.8	1200
2024-05-01	1215.9	1209.2	1104.8	1200
2024-04-01	1215.9	1209.2	1104.8	1200
2024-03-01	1215.9	1209.2	1104.8	1200
2024-02-01	1215.9	1209.2	1104.8	1200
2024-01-01	1215.9	1209.2	1104.8	1200
2023-12-01	1215.9	1209.2	1104.8	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

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	USSA Chess Championships 2024 (Ladies)	2024-11-29	2024-12-03	Standard	Tshwane (GTP)	9	9	4.5	Yes	Analysis
3	CT League 2024 (B)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	3	1	Yes	Analysis
4	2023 USSA Championships (Ladies)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	8	4.5	Yes	Analysis
5	WP Club League 2023 (B)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	7	1	Yes	Analysis
6	CW Top Schools 2023 (Advanced)	2023-08-11	2023-08-13	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
7	2022 Etienne Lewis (U18+U20 Open+Girls)	2022-09-02	2022-09-04	Standard	Tshwane (GTP)	7	6	2.5	Yes	Analysis
8	Ladies Tournament 9 August 2022 (Queen)	2022-08-09	2022-08-09	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
9	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	3.5	Yes	Analysis
10	2022 Blou Bul Open (B)	2022-06-25	2022-06-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
11	2022 Silver Lakes Chess Club Open Chess Tournament (B)	2022-05-14	2022-05-14	Standard	Tshwane (GTP)	5	5	0.5	Yes	Analysis
12	2022 Lubowski Open Tournament (C)	2022-04-09	2022-04-10	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	Moja Open 2022 (Ladies)	2022-03-19	2022-03-22	Standard	Frances Baard (NCF)	7	7	3	Yes	Analysis
14	2022 Chris Greyling Open (C)	2022-03-12	2022-03-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
15	South African Junior Closed Chess Championships 2022 (U18 Girls)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	11	5	Yes	Analysis
16	2022 Gauteng Interregion (U16+U18 Girls)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
17	2022 Tshwane Chess Open Registration Tournament (C2)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	2021 Silver Lakes Chess Club Wednesday Rapid	2021-10-27	2021-10-27	Rapid	Tshwane (GTP)	5	5	1	Yes	Analysis
19	2021 Etienne Lewis Closed Trials (U18+U20 Open)	2021-09-24	2021-09-26	Standard	Nelson Mandela Bay (ENM)	7	6	1	Yes	Analysis
20	2021 Alekhine Open (D)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
21	2021 Chris Greyling Open Tournament (D)	2021-05-08	2021-05-08	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
22	2021 Lubowski Open Tournament (D)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
23	2021 Blou Bul Tournament (C)	2021-04-10	2021-04-10	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
24	2021 Registration Tournament (C)	2021-03-13	2021-03-13	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
25	2020 Waterkloof Open (D)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis

#	Games	Start				End
1	5	Tournament USSA Chess Championships 2024				Tournament USSA Chess Championships 2024
		date 2024-11-30	rnd 4	type Standard	result 0.5	date 2024-12-03	rnd 8	type Standard	result 0.5
		Opponent Moshoma, P (Paballo)				Opponent Ngcobo, A (Andiswa)
2	5	Tournament 2023 USSA Championships				Tournament CT League 2024
		date 2023-12-07	rnd 6	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Khumalo, R (Rethabile)				Opponent Andrews, R (Raldo)
3	5	Tournament 2021 Chris Greyling Open Tournament				Tournament 2021 Alekhine Open
		date 2021-05-08	rnd 2	type Standard	result 1	date 2021-08-14	rnd 1	type Standard	result 1
		Opponent Kumar, SD (Sophie Deepak)				Opponent Matsioloko, G (Godisang)

#	Games	Start				End
1	5	Tournament USSA Chess Championships 2024				Tournament USSA Chess Championships 2024
		date 2024-11-30	rnd 4	type Standard	result 0.5	date 2024-12-03	rnd 8	type Standard	result 0.5
		Opponent Moshoma, P (Paballo)				Opponent Ngcobo, A (Andiswa)
2	5	Tournament 2023 USSA Championships				Tournament CT League 2024
		date 2023-12-07	rnd 6	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Khumalo, R (Rethabile)				Opponent Andrews, R (Raldo)
3	5	Tournament 2021 Chris Greyling Open Tournament				Tournament 2021 Alekhine Open
		date 2021-05-08	rnd 2	type Standard	result 1	date 2021-08-14	rnd 1	type Standard	result 1
		Opponent Kumar, SD (Sophie Deepak)				Opponent Matsioloko, G (Godisang)

#	Games	Start				End
1	1	Tournament 2021 Silver Lakes Chess Club Wednesday Rapid				Tournament 2021 Silver Lakes Chess Club Wednesday Rapid
		date 2021-10-27	rnd 4	type Rapid	result 1	date 2021-10-27	rnd 4	type Rapid	result 1
		Opponent Fokker, CD (Christiaan Dirk)				Opponent Fokker, CD (Christiaan Dirk)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 2021 Chris Greyling Open Tournament				Tournament 2021 Alekhine Open
		date 2021-05-08	rnd 2	type Standard	result 1	date 2021-08-14	rnd 1	type Standard	result 1
		Opponent Kumar, SD (Sophie Deepak)				Opponent Matsioloko, G (Godisang)
2	3	Tournament 2023 USSA Championships				Tournament CT League 2024
		date 2023-12-08	rnd 8	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ngidi, V (Victoria)				Opponent Andrews, R (Raldo)
3	3	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament 2022 Tshwane Chess Open Registration Tournament
		date 2022-01-29	rnd 3	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Olivier, BM (Barnard)				Opponent Viljoen, A (Amber)

#	Games	Start				End
1	5	Tournament 2021 Chris Greyling Open Tournament				Tournament 2021 Alekhine Open
		date 2021-05-08	rnd 2	type Standard	result 1	date 2021-08-14	rnd 1	type Standard	result 1
		Opponent Kumar, SD (Sophie Deepak)				Opponent Matsioloko, G (Godisang)
2	3	Tournament 2023 USSA Championships				Tournament CT League 2024
		date 2023-12-08	rnd 8	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ngidi, V (Victoria)				Opponent Andrews, R (Raldo)
3	3	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament 2022 Tshwane Chess Open Registration Tournament
		date 2022-01-29	rnd 3	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Olivier, BM (Barnard)				Opponent Viljoen, A (Amber)

#	Games	Start				End
1	1	Tournament 2021 Silver Lakes Chess Club Wednesday Rapid				Tournament 2021 Silver Lakes Chess Club Wednesday Rapid
		date 2021-10-27	rnd 4	type Rapid	result 1	date 2021-10-27	rnd 4	type Rapid	result 1
		Opponent Fokker, CD (Christiaan Dirk)				Opponent Fokker, CD (Christiaan Dirk)

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	Sibanda ,AP (Andile Patience)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Sibanda ,AP (Andile Patience)	3	1307.1	882.1	3	1295.5	882.1	0	0	0	0	0	0
2	De Waal ,N (Nadine)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	De Waal ,N (Nadine)	2	1331.6	1544.1	2	1313.8	1544.1	0	0	0	0	0	0
3	Pharo ,K (Keenan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Pharo ,K (Keenan)	2	1191.3	1403.8	2	1178.4	1403.8	0	0	0	0	0	0
4	De Beer ,J (Janka)	2	1	0	2	1	0	0	0	0	0	0	0
4	De Beer ,J (Janka)	2	1354.2	1354.2	2	1347.3	1354.2	0	0	0	0	0	0
5	Reddy ,KS (Kashen Shivaan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Reddy ,KS (Kashen Shivaan)	2	1237.6	1025.1	2	1229.8	1025.1	0	0	0	0	0	0
6	Mouton ,J (Jacques)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Mouton ,J (Jacques)	2	1355.4	930.4	2	1374.8	930.4	0	0	0	0	0	0
7	Venter ,Z (Zanri)	2	1	0	2	1	0	0	0	0	0	0	0
7	Venter ,Z (Zanri)	2	1236.1	1236.1	2	1223.6	1236.1	0	0	0	0	0	0
8	Kutchoukov ,I (Ivan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Kutchoukov ,I (Ivan)	2	1211.9	999.4	2	1211.1	999.4	0	0	0	0	0	0
9	Badenhorst ,D (Daniel)	2	1	0	2	1	0	0	0	0	0	0	0
9	Badenhorst ,D (Daniel)	2	1245.1	1245.1	2	1238.6	1245.1	0	0	0	0	0	0
10	Jacobs ,L (Lenita)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Jacobs ,L (Lenita)	2	1196.5	771.5	1	1232.8	771.5	1	1200	771.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Botha, L (Lorelei)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms