Chess South Africa Ratings Database

PLAYER PAGE

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

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1161.5

Item	Main	Standard	Rapid	Blitz
Rating	1177.1	1173.6	1200	1200
Raw rating	1177.1	1173.6	1200	1200
Weighted rating	1176.4	1172.2	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	171.3	172.2	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	-3.4	-4.6	0	0
New rating	1173.7	1169	1200	1200
Analysis
Rating	1177.1	1173.6	1200	1200
Raw rating	1177.1	1173.6	1200	1200
Weighted rating	1176.4	1172.2	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	714.1	718	700	700
Max/Min rating change allowed	171.3	172.2	165.8	165.8
Games	3	3	0	0
Score	0	0	0	0
Expected score	1.05	1.25	0	0
Score-Expected	-1.05	-1.25	0	0
Temp raw +/-	-37.6	-45	0	0
Final raw +/-	-37.6	-45	0	0
New raw rating	1139.5	1128.6	1200	1200
New weighted rating	1173.7	1169	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1173.7	1169	1200	1200
Temp new rating +/-	-3.4	-4.6	0	0
Final new rating +/-	-3.4	-4.6	0	0
New rating	1173.7	1169	1200	1200
New K-factor	36	36	36	36
New floor	714.1	718	700	700

Item	Main	Standard
	0	0
	14	14
	9	9
	7	7
	0	0
	0	0
History	30	30

Games since
	Main 23	Standard 23		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	14	6	42.86	-60.7	1247.8	1187.1
Standard	14	6	42.86	-60.7	1247.8	1187.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	30	13	43.33	-56.7	1223.2	1166.6
Standard	30	13	43.33	-56.7	1223.2	1166.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
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
2024-08-01	1169	1162.6	1200	1200
2024-07-01	1169	1162.6	1200	1200
2024-09-01	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
2024-01-01	1153.1	1143.1	1200	1200
2023-12-01	1153.1	1143.1	1200	1200

Comming soon.

Tournaments

History

#	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

#	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

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	Makhado ,P (Princess)	1	1	425	1	1	425	0	0	0	0	0	0
3	Makhado ,P (Princess)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Pillay De Bruyn ,T (Trystan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Pillay De Bruyn ,T (Trystan)	1	1071.8	646.8	1	1059.2	646.8	0	0	0	0	0	0
5	Mckibbin ,G (Gregory)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mckibbin ,G (Gregory)	1	1200	775	1	1199.6	775	0	0	0	0	0	0
6	Oriasotie ,G (Gerard)	1	1	425	1	1	425	0	0	0	0	0	0
6	Oriasotie ,G (Gerard)	1	1200	1625	1	1200	1625	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	Guiness ,H (Hilton)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Guiness ,H (Hilton)	1	1200	775	1	1200	775	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

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms