Chess South Africa Ratings Database

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Personal

Lancaster, G (Gemma)

Chess SA id

1090157136

FIDE id

Date of birth

2009-04-07 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1171	1165.9	1200	1200
Raw rating	1139.5	1128.6	1200	1200
Weighted rating	1171	1165.9	1200	1200
Weighted performance	0	0	0	0
Floor	714.1	718	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	180.7	183.6	165.8	165.8
Highest rating	1429.6 2024-03-01	1429.3 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1214.1 2024-05-01	1218 2024-05-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1214.1 2018-10-01	1218 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1429.6 2024-03-01	1429.3 2024-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.6	-3.1	0	0
New rating	1168.4	1162.8	1200	1200
Analysis
Rating	1171	1165.9	1200	1200
Raw rating	1139.5	1128.6	1200	1200
Weighted rating	1171	1165.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	714.1	718	700	700
Max/Min rating change allowed	180.7	183.6	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	1139.5	1128.6	1200	1200
New weighted rating	1168.4	1162.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1168.4	1162.8	1200	1200
Temp new rating +/-	-2.6	-3.1	0	0
Final new rating +/-	-2.6	-3.1	0	0
New rating	1168.4	1162.8	1200	1200
New K-factor	36	36	36	36
New floor	714.1	718	700	700

Item	Main	Standard
	0	0
	17	17
	9	9
	7	7
	0	0
	0	0
History	33	33

Games since
	Main 26	Standard 26		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	17	6	35.29	-125	1245.3	1120.3
Standard	17	6	35.29	-125	1245.3	1120.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	33	13	39.39	-90.2	1224.2	1134.1
Standard	33	13	39.39	-90.2	1224.2	1134.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1139.5	1128.6	1200	1200
2025-11-30	1139.5	1128.6	1200	1200
2025-11-01	1177.1	1173.6	1200	1200
2025-09-30	1177.1	1173.6	1200	1200
2025-09-01	1185.5	1184	1200	1200
2025-08-01	1185.5	1184	1200	1200
2025-07-01	1185.5	1184	1200	1200
2025-06-01	1172.6	1167.2	1200	1200
2025-05-01	1172.6	1167.2	1200	1200
2025-04-01	1172.5	1167.2	1200	1200
2025-03-01	1173.5	1168.4	1200	1200
2025-02-01	1173.5	1168.4	1200	1200
2025-01-01	1173.5	1168.4	1200	1200
2024-12-01	1173.5	1168.4	1200	1200
2024-11-01	1169	1162.6	1200	1200
2024-10-01	1169	1162.6	1200	1200
2024-09-01	1169	1162.6	1200	1200
2024-11-01	1169	1162.6	1200	1200
2024-07-01	1169	1162.6	1200	1200
2024-06-01	1214.1	1218	1200	1200
2024-05-01	1214.1	1218	1200	1200
2024-04-01	1153.1	1143.1	1200	1200
2024-03-01	1153.1	1143.1	1200	1200
2024-02-01	1153.1	1143.1	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	JCC St Davids Marist Schools League 2025 (A)	2025-09-08	2025-10-27	Standard	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
2	St Peters College Sports & Cultural Festival 2025	2025-09-19	2025-09-20	Standard	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis
3	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
4	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis
5	JCC St Peters High Schools League 2024 (B)	2024-09-09	2024-10-14	Standard	Johannesburg Metro (GJM)	5	2	1	Yes	Analysis
6	JCC Steyn City High Schools League 2024 (A)	2024-05-11	2024-05-25	Standard	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
7	Dainfern College Chess League 2024 (A)	2024-01-29	2024-03-11	Standard	Johannesburg Metro (GJM)	6	1	1	Yes	Analysis
8	Dainfern College Chess League 2024 (B)	2024-01-29	2024-03-11	Standard	Johannesburg Metro (GJM)	6	3	3	Yes	Analysis
9	St Peters College Chess League 2023 (B)	2023-09-11	2023-10-23	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
10	Steyn City School Chess League 2023 (B)	2023-05-05	2023-05-29	Standard	Johannesburg Metro (GJM)	6	2	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-05	rnd 2	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Oriasotie, G (Gerard)				Opponent Makhado, P (Princess)
2	2	Tournament St Peters College Sports & Cultural Festival 2025				Tournament St Peters College Sports & Cultural Festival 2025
		date 2025-09-19	rnd 4	type Standard	result 1	date 2025-09-20	rnd 6	type Standard	result 1
		Opponent James, C (Christian)				Opponent Lovely, J (Jake)
3	2	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-06-02	rnd 5	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Vallabh, K (Kavi)				Opponent Maharaj, I (Ishaan)

#	Games	Start				End
1	4	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-05	rnd 2	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Oriasotie, G (Gerard)				Opponent Makhado, P (Princess)
2	2	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-06-02	rnd 5	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Vallabh, K (Kavi)				Opponent Maharaj, I (Ishaan)
3	2	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-03	rnd 4	type Standard	result 1
		Opponent Moloi, T (Tumelo)				Opponent Lutchman, A (Arya)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-05	rnd 2	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Oriasotie, G (Gerard)				Opponent Makhado, P (Princess)
2	2	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-06-02	rnd 5	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Vallabh, K (Kavi)				Opponent Maharaj, I (Ishaan)
3	2	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-03	rnd 4	type Standard	result 1
		Opponent Moloi, T (Tumelo)				Opponent Lutchman, A (Arya)

#	Games	Start				End
1	4	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-05	rnd 2	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Oriasotie, G (Gerard)				Opponent Makhado, P (Princess)
2	2	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-06-02	rnd 5	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Vallabh, K (Kavi)				Opponent Maharaj, I (Ishaan)
3	2	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-03	rnd 4	type Standard	result 1
		Opponent Moloi, T (Tumelo)				Opponent Lutchman, A (Arya)

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	Schliesser ,W (Wilhelm)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Schliesser ,W (Wilhelm)	2	1269.3	844.3	2	1268.2	844.3	0	0	0	0	0	0
2	Maharaj ,I (Ishaan)	2	1	0	2	1	0	0	0	0	0	0	0
2	Maharaj ,I (Ishaan)	2	1222.9	1222.9	2	1218.4	1222.9	0	0	0	0	0	0
3	Muthuselvan ,J (Jayanthan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Muthuselvan ,J (Jayanthan)	1	1397.2	972.2	1	1415.3	972.2	0	0	0	0	0	0
4	Makhado ,P (Princess)	1	1	425	1	1	425	0	0	0	0	0	0
4	Makhado ,P (Princess)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Pillay De Bruyn ,T (Trystan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Pillay De Bruyn ,T (Trystan)	1	1071.8	646.8	1	1059.2	646.8	0	0	0	0	0	0
6	Mckibbin ,G (Gregory)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mckibbin ,G (Gregory)	1	1200	775	1	1199.6	775	0	0	0	0	0	0
7	Vallabh ,K (Kavi)	1	1	425	1	1	425	0	0	0	0	0	0
7	Vallabh ,K (Kavi)	1	1267.1	1692.1	1	1250	1692.1	0	0	0	0	0	0
8	Gear ,A (Amy)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Gear ,A (Amy)	1	1232.2	807.2	1	1240.3	807.2	0	0	0	0	0	0
9	Oriasotie ,G (Gerard)	1	1	425	1	1	425	0	0	0	0	0	0
9	Oriasotie ,G (Gerard)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Nyakambi ,I (Ithuteng)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nyakambi ,I (Ithuteng)	1	1240	815	1	1248.3	815	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Lancaster, G (Gemma)

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