Chess South Africa Ratings Database

PLAYER PAGE

Personal

Farkas, C (Coby)

Chess SA id

1110141967

FIDE id

Date of birth

2011-06-05 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-24

Personal details last changed

1900-01-01

Junior GPX Games

26.6

Junior GPX Points

1058.6

Item	Main	Standard	Rapid	Blitz
Rating	1206.2	1196.3	1218.9	1200
Raw rating	1170.5	1175.5	1210.9	1200
Weighted rating	1206.2	1196.3	1218.9	1200
Weighted performance	1094.7	1064.2	1099.4	0
Floor	732.1	730	731.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.9	171.7	163.3	165.8
Highest rating	1244.8 2022-06-01	1230 2025-04-01	1289.4 2022-06-01	1200 2018-10-01
Highest raw rating	1232.1 2025-04-01	1230 2025-04-01	1231.4 2024-02-01	1200 2024-02-01
Highest weighted rating	1232.1 2024-03-01	1230 2018-10-01	1231.4 2024-03-01	1200 2018-10-01
Highest weighted performance	1244.8 2022-06-01	1200 2020-01-01	1289.4 2022-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.9	-1.3	-0.8	0
New rating	1203.3	1195	1218.1	1200
Analysis
Rating	1206.2	1196.3	1218.9	1200
Raw rating	1170.5	1175.5	1210.9	1200
Weighted rating	1206.2	1196.3	1218.9
Weighted performance	1094.7	1064.2	1099.4
K-factor	36	36	36	36
Floor	732.1	730	731.4	700
Max/Min rating change allowed	172.9	171.7	163.3	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	1170.5	1175.5	1210.9	1200
New weighted rating	1203.3	1195	1218.1	1200
New weighted performance	1094.3	1063.8	1099	0
Temp new rating	1203.3	1195	1218.1	1200
Temp new rating +/-	-2.9	-1.3	-0.8	0
Final new rating +/-	-2.9	-1.3	-0.8	0
New rating	1203.3	1195	1218.1	1200
New K-factor	36	36	36	36
New floor	732.1	730	731.4	700

Item	Main	Standard	Rapid
	0	0	0
	36	14	22
	22	10	12
	10	5	5
	5	0	5
	0	0	0
History	73	29	44

Games since
	Main 58	Standard 24		Rapid 34		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3991		1286		350
Male	3008		983		273
U16	643		205		52
U16 Male	443		140		40
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1514		258		106
Male	1186		200		93
U16	247		29		14
U16 Male	194		21		12
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	36	13.5	37.5	-106.2	1290.9	1184.6
Standard	14	5.5	39.29	-91.1	1292	1201
Rapid	22	8	36.36	-115.9	1290.2	1174.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	73	31.5	43.15	-58.2	1263.5	1205.3
Standard	29	11.5	39.66	-87.9	1262.8	1174.9
Rapid	44	20	45.45	-38.6	1264	1225.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1170.5	1175.5	1210.9	1200
2025-09-01	1170.5	1175.5	1210.9	1200
2025-08-01	1225.3	1230	1220.5	1200
2025-07-01	1225.3	1230	1218.7	1200
2025-06-01	1232.1	1230	1221.4	1200
2025-05-01	1232.1	1230	1221.4	1200
2025-04-01	1232.1	1230	1221.3	1200
2025-03-01	1211.5	1204.4	1217	1200
2025-02-01	1202.7	1180.4	1222.2	1200
2025-01-01	1189.7	1167.2	1219.9	1200
2024-12-01	1189.7	1167.2	1219.9	1200
2024-11-01	1189.7	1167.2	1219.9	1200
2024-10-01	1205.5	1178.8	1219.9	1200
2024-09-01	1205.5	1178.8	1219.9	1200
2024-08-01	1205.5	1178.8	1219.9	1200
2024-07-01	1205.5	1178.8	1219.9	1200
2024-06-01	1205.5	1178.8	1219.9	1200
2024-08-01	1217.2	1190.4	1219.9	1200
2024-04-01	1197.4	1190.4	1199.4	1200
2024-03-01	1209.9	1190.4	1231.4	1200
2024-02-01	1209.9	1190.4	1231.4	1200
2024-01-01	1209.9	1190.4	1231.4	1200
2023-12-01	1209.9	1190.4	1231.4	1200
2023-11-01	1209.9	1190.4	1231.4	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	Rock n Roll Rapid 2025 (Kings)	2025-08-24	2025-08-24	Rapid	Ekurhuleni (GE)	5	4	2	Yes	Analysis
2	JMC Closed 2025 (U16)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
3	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	1	0	Yes	Analysis
4	Chess Power House Youth Day Rapid 2025 (B)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	JMC Crawford Ruimsig 2025 (D)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	JMC Rapid The Bridge School 2025 (Open)	2025-02-23	2025-02-23	Rapid	Johannesburg Metro (GJM)	7	7	1	Yes	Analysis
7	CPH Primrose Open 2025 (B)	2025-02-08	2025-02-08	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
8	Chess Power House Feb Rapid 2025 (A)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rock n Roll Rapid 2025 (Kings)	2025-08-24	2025-08-24	Rapid	Ekurhuleni (GE)	5	4	2	Yes	Analysis
2	JMC Closed 2025 (U16)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
3	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	1	0	Yes	Analysis
4	Chess Power House Youth Day Rapid 2025 (B)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	JMC Crawford Ruimsig 2025 (D)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	JMC Rapid The Bridge School 2025 (Open)	2025-02-23	2025-02-23	Rapid	Johannesburg Metro (GJM)	7	7	1	Yes	Analysis
7	CPH Primrose Open 2025 (B)	2025-02-08	2025-02-08	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
8	Chess Power House Feb Rapid 2025 (A)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	CPH Boksburg Open 2024 (C)	2024-10-26	2024-10-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
10	Chess Power House May Open 2024 (C)	2024-05-25	2024-05-25	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
11	JCC King David Linksfield Rapid 2024 (B)	2024-04-21	2024-04-21	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
12	Ekurhuleni North Chess Club Open Tournament 2024 (D)	2024-03-02	2024-03-02	Rapid	Ehlanzeni (MEN)	7	7	3	Yes	Analysis
13	Chess Power House 2023 (C)	2023-08-19	2023-08-19	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	Chess Molecules 16 June Tournament 2023 (Grade 5-7)	2023-06-16	2023-06-16	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
15	Chess Power House Rapid 2022 (B)	2022-06-11	2022-06-11	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Chess Molecules 16 June Tournament 2023				Tournament Chess Power House 2023
		date 2023-06-16	rnd 3	type Rapid	result 1	date 2023-08-19	rnd 1	type Standard	result 1
		Opponent Hubbard, C (Cole)				Opponent Smart, M (Mark)
2	3	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Kotzenmacher, L (Leo)
3	3	Tournament JCC King David Linksfield Rapid 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-04-21	rnd 2	type Rapid	result 1	date 2024-04-21	rnd 4	type Rapid	result 1
		Opponent Zou, Y (Yixuan)				Opponent Chadalavada, B (Bhaarghavarama)

#	Games	Start				End
1	3	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Kotzenmacher, L (Leo)
2	2	Tournament CPH Primrose Open 2025				Tournament CPH Primrose Open 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Karuppan, Z (Zebada)				Opponent Chupo, T (Thato)
3	1	Tournament CPH Primrose Open 2025				Tournament CPH Primrose Open 2025
		date 2025-02-08	rnd 2	type Standard	result 0.5	date 2025-02-08	rnd 2	type Standard	result 0.5
		Opponent Makwisa, N (Neo)				Opponent Makwisa, N (Neo)

#	Games	Start				End
1	3	Tournament JCC King David Linksfield Rapid 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-04-21	rnd 2	type Rapid	result 1	date 2024-04-21	rnd 4	type Rapid	result 1
		Opponent Zou, Y (Yixuan)				Opponent Chadalavada, B (Bhaarghavarama)
2	3	Tournament Chess Molecules 16 June Tournament 2023				Tournament Chess Molecules 16 June Tournament 2023
		date 2023-06-16	rnd 3	type Rapid	result 1	date 2023-06-16	rnd 5	type Rapid	result 0.5
		Opponent Hubbard, C (Cole)				Opponent Emmanuel, J (Joshua)
3	3	Tournament Chess Power House Rapid 2022				Tournament Chess Molecules 16 June Tournament 2023
		date 2022-06-11	rnd 4	type Rapid	result 1	date 2023-06-16	rnd 1	type Rapid	result 1
		Opponent Maesela, T (Tlholo)				Opponent Mogotsi, G (Gomolemo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Kotzenmacher, L (Leo)
2	3	Tournament JCC King David Linksfield Rapid 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-04-21	rnd 2	type Rapid	result 1	date 2024-04-21	rnd 4	type Rapid	result 1
		Opponent Zou, Y (Yixuan)				Opponent Chadalavada, B (Bhaarghavarama)
3	3	Tournament Chess Power House Rapid 2022				Tournament Chess Molecules 16 June Tournament 2023
		date 2022-06-11	rnd 4	type Rapid	result 1	date 2023-06-16	rnd 1	type Rapid	result 1
		Opponent Maesela, T (Tlholo)				Opponent Mogotsi, G (Gomolemo)

#	Games	Start				End
1	3	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Kotzenmacher, L (Leo)
2	2	Tournament CPH Primrose Open 2025				Tournament CPH Primrose Open 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Karuppan, Z (Zebada)				Opponent Chupo, T (Thato)
3	1	Tournament CPH Boksburg Open 2024				Tournament CPH Boksburg Open 2024
		date 2024-10-26	rnd 4	type Standard	result 1	date 2024-10-26	rnd 4	type Standard	result 1
		Opponent Ngqweqwe, S (Sanele)				Opponent Ngqweqwe, S (Sanele)

#	Games	Start				End
1	3	Tournament JCC King David Linksfield Rapid 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-04-21	rnd 2	type Rapid	result 1	date 2024-04-21	rnd 4	type Rapid	result 1
		Opponent Zou, Y (Yixuan)				Opponent Chadalavada, B (Bhaarghavarama)
2	3	Tournament Chess Power House Rapid 2022				Tournament Chess Molecules 16 June Tournament 2023
		date 2022-06-11	rnd 4	type Rapid	result 1	date 2023-06-16	rnd 1	type Rapid	result 1
		Opponent Maesela, T (Tlholo)				Opponent Mogotsi, G (Gomolemo)
3	2	Tournament Rock n Roll Rapid 2025				Tournament Rock n Roll Rapid 2025
		date 2025-08-24	rnd 2	type Rapid	result 1	date 2025-08-24	rnd 3	type Rapid	result 1
		Opponent Mmotla, M (Mayte)				Opponent Thomaz, C (Cristiano)

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	Mlilo ,S (Sibongisiwe)	3	0	-425	0	0	0	3	0	-425	0	0	0
1	Mlilo ,S (Sibongisiwe)	3	1393	968	0	0	0	3	1236.1	968	0	0	0
2	Assabi ,O (Ofer)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Assabi ,O (Ofer)	2	1574.1	1149.1	1	1566.6	1149.1	1	1602.4	1149.1	0	0	0
3	Erasmus ,M (Max)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Erasmus ,M (Max)	2	1279.7	854.7	1	1265.4	854.7	1	1152.7	854.7	0	0	0
4	Karuppan ,Z (Zebada)	2	2	425	1	1	425	1	1	425	0	0	0
4	Karuppan ,Z (Zebada)	2	1140.9	1565.9	1	1143	1565.9	1	1184.6	1565.9	0	0	0
5	Mashigo ,W (Wayne)	2	2	425	1	1	425	1	1	425	0	0	0
5	Mashigo ,W (Wayne)	2	1087.9	1512.9	1	1096.8	1512.9	1	1077.4	1512.9	0	0	0
6	Gadney ,L (Liam)	2	2	425	0	0	0	2	2	425	0	0	0
6	Gadney ,L (Liam)	2	1205.7	1630.7	0	0	0	2	1197.3	1630.7	0	0	0
7	Ngqweqwe ,S (Sanele)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ngqweqwe ,S (Sanele)	1	981.3	1406.3	1	969.2	1406.3	0	0	0	0	0	0
8	Kolbe ,J (Jayton)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Kolbe ,J (Jayton)	1	1365.8	940.8	1	1362.7	940.8	0	0	0	0	0	0
9	Pon ,C (Christine)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Pon ,C (Christine)	1	1261.1	836.1	1	1260	836.1	0	0	0	0	0	0
10	Hubbard ,C (Cole)	1	1	425	0	0	0	1	1	425	0	0	0
10	Hubbard ,C (Cole)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Farkas, C (Coby)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms