Chess South Africa Ratings Database

PLAYER PAGE

Personal

Farrell, J (Jonty)

Chess SA id

1090111233

FIDE id

Date of birth

2009-09-02 (U18)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1448.7	1450.3	1236.5	1200
Raw rating	1448.7	1450.3	1236.5	1200
Weighted rating	1441.9	1442.4	1236.5	1200
Weighted performance	1164.9	1163	0	0
Floor	1003.3	995	736.5	700
K-factor	32	32	36	36
Min/Max rating change allowed	116.3	116.1	157.4	165.8
Highest rating	1503.3 2023-07-01	1495 2023-06-01	1311 2023-06-01	1200 2018-10-01
Highest raw rating	1503.3 2023-07-01	1495 2023-06-01	1236.5 2024-02-01	1200 2024-02-01
Highest weighted rating	1503.3 2025-03-01	1495 2025-04-01	1236.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1463.6 2023-10-01	1488.2 2023-10-01	1311 2023-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1448.7	1450.3	1236.5	1200
Analysis
Rating	1448.7	1450.3	1236.5	1200
Raw rating	1448.7	1450.3	1236.5	1200
Weighted rating	1441.9	1442.4	1236.5
Weighted performance	1164.9	1163	0
K-factor	32	32	36	36
Floor	1003.3	995	736.5	700
Max/Min rating change allowed	116.3	116.1	157.4	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	1448.7	1450.3	1236.5	1200
New weighted rating	1442.5	1443.1	1236.5	1200
New weighted performance	1156.5	1154.5	0	0
Temp new rating	1448.7	1450.3	1236.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1448.7	1450.3	1236.5	1200
New K-factor	32	32	36	36
New floor	1003.3	995	736.5	700

Item	Main	Standard	Rapid
	0	0	0
	3	3	0
	25	25	0
	62	53	9
	44	44	0
	0	0	0
History	176	167	9

Games since
	Main 28	Standard 28		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Sedibeng (GSV)
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	3	2	66.67	141.7	1369.8	1511.5
Standard	3	2	66.67	141.7	1369.8	1511.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	176	111	63.07	111.1	1208.5	1319.5
Standard	167	105	62.87	109.4	1203.5	1312.9
Rapid	9	6	66.67	141.7	1301	1442.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1448.7	1450.3	1236.5	1200
2025-09-30	1448.7	1450.3	1236.5	1200
2025-09-01	1448.7	1450.3	1236.5	1200
2025-08-01	1448.7	1450.3	1236.5	1200
2025-07-01	1448.7	1450.3	1236.5	1200
2025-06-01	1440.9	1440.5	1236.5	1200
2025-05-01	1440.9	1440.5	1236.5	1200
2025-04-01	1440.9	1440.5	1236.5	1200
2025-03-01	1440.9	1440.5	1236.5	1200
2025-02-01	1440.2	1439.8	1236.5	1200
2025-01-01	1436.4	1436.8	1236.5	1200
2024-12-01	1436.4	1436.8	1236.5	1200
2024-11-01	1436.4	1436.8	1236.5	1200
2024-10-01	1436.4	1436.8	1236.5	1200
2024-09-01	1436.4	1436.8	1236.5	1200
2024-08-01	1436.4	1436.8	1236.5	1200
2024-07-01	1436.4	1436.8	1236.5	1200
2024-09-01	1436.4	1436.8	1236.5	1200
2024-05-01	1405.9	1398.4	1236.5	1200
2024-04-01	1442.6	1445.4	1236.5	1200
2024-03-01	1431.4	1431.3	1236.5	1200
2024-02-01	1431.4	1431.3	1236.5	1200
2024-01-01	1469.6	1472.3	1236.5	1200
2023-12-01	1469.6	1472.3	1236.5	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 Junior League 2025 (U18)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Junior League 2025 (U18)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	2	Yes	Analysis
2	Sedibeng Chess Open 11 May 2024 (U15)	2024-05-11	2024-05-11	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
3	Vaalpark Primary Chess Open 2024 (B)	2024-04-13	2024-04-13	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
4	HS Drie Riviere Chess Open Section 2024 (B)	2024-03-09	2024-03-09	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
5	Valia's Open 2024 (B)	2024-03-02	2024-03-02	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
6	2024 Gauteng Inter-Region Chess Championship (U16A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	NWU Vaal Open 2023 (C)	2023-10-14	2023-10-14	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
8	Dr Pieter Hangelbroek Rapid 2023 (B)	2023-10-28	2023-10-28	Rapid	Sedibeng (GSV)	5	5	3	Yes	Analysis
9	2023 Gauteng Top Schools (U15 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
10	2023 Sedibeng West District Schools Chess Tournament (U15)	2023-08-12	2023-08-12	Standard	Sedibeng (GSV)	5	4	3	Yes	Analysis
11	Overvaal Ope Jul 2023 (B)	2023-07-22	2023-07-22	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
12	Eureka Open 2023 (D)	2023-07-29	2023-07-29	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
13	VaalPark Primary Open Chess 2023 (B)	2023-06-16	2023-06-16	Rapid	Sedibeng (GSV)	5	4	3	Yes	Analysis
14	D8 Schools Individuals 2023 (U15 Boys)	2023-05-20	2023-05-20	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
15	Valia's Chess Tournament 2023 (C)	2023-05-06	2023-05-06	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
16	Driehoek Open Chess Tournament 2023 (C)	2023-09-13	2023-09-13	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
17	Overvaal Open 2023 (C)	2023-04-15	2023-04-15	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
18	Hoerskool Drie Riviere Open 2023 (C)	2023-03-11	2023-03-11	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
19	Laerkool Midvaal Chess Open 2023 (C)	2023-01-28	2023-01-28	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
20	2022 South African Junior Team Chess Championships (U14 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	1	Yes	Analysis
21	Dr Peter Hangelbroek Open 2022 (C+D)	2022-10-29	2022-10-29	Standard	Sedibeng (GSV)	5	4	1.5	Yes	Analysis
22	Overvaal Open 2022 (C)	2022-08-06	2022-08-06	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
23	Eureka Open 2022 (E)	2022-07-30	2022-07-30	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
24	Hoerskool Overvaal 2022 (C)	2022-06-11	2022-06-11	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
25	LS Vryheidsmonument Chess Open 2022 (C)	2022-05-07	2022-05-07	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
26	Lux Deo NG Kerk Chess Open 2022 (D)	2022-04-09	2022-04-09	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
27	Drie Riviere Open 2022 (D)	2022-02-18	2022-02-18	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
28	Carel`s Chess Open 2022 (D)	2022-03-05	2022-03-05	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
29	Carel`s Open 2020 (C)	2020-02-29	2020-02-29	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
30	Eagles Open 2019 (C)	2019-11-23	2019-11-23	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
31	Sedibeng DF Malherbe Open 2019 (C)	2019-10-12	2019-10-12	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
32	Fonteine Ope 2019 (C)	2019-10-19	2019-10-19	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
33	Word of Life 2019 (D)	2019-05-11	2019-05-11	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
34	Amigo Spur Eligwa Chess Open 2019 (C)	2019-05-18	2019-05-18	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
35	Carels Open 2019 (D)	2019-03-02	2019-03-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
36	D8 Team League 2018 (U9)	2018-07-28	2018-07-28	Standard	Sedibeng (GSV)	2	2	2	Yes	Analysis
37	Carels Open 2018 (D)	2018-03-03	2018-03-03	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2023 Gauteng Top Schools				Tournament NWU Vaal Open 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-10-14	rnd 4	type Standard	result 1
		Opponent Mnguni, N (Neo)				Opponent Van De Venter, Z (Zandre)
2	9	Tournament Valia's Chess Tournament 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-06	rnd 1	type Standard	result 1	date 2023-05-20	rnd 4	type Standard	result 1
		Opponent Drotsky, R (Reynhardt)				Opponent Mittermaier, G (Gunther)
3	8	Tournament Vaalpark Primary Chess Open 2024				Tournament Cape Town Chess Junior League 2025
		date 2024-04-13	rnd 5	type Standard	result 1	date 2025-05-10	rnd 2	type Standard	result 1
		Opponent Joubert, J (Jan Johannes)				Opponent Mangali, O (Ongama)

#	Games	Start				End
1	10	Tournament 2023 Gauteng Top Schools				Tournament NWU Vaal Open 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-10-14	rnd 4	type Standard	result 1
		Opponent Mnguni, N (Neo)				Opponent Van De Venter, Z (Zandre)
2	9	Tournament Valia's Chess Tournament 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-06	rnd 1	type Standard	result 1	date 2023-05-20	rnd 4	type Standard	result 1
		Opponent Drotsky, R (Reynhardt)				Opponent Mittermaier, G (Gunther)
3	8	Tournament Vaalpark Primary Chess Open 2024				Tournament Cape Town Chess Junior League 2025
		date 2024-04-13	rnd 5	type Standard	result 1	date 2025-05-10	rnd 2	type Standard	result 1
		Opponent Joubert, J (Jan Johannes)				Opponent Mangali, O (Ongama)

#	Games	Start				End
1	3	Tournament Dr Pieter Hangelbroek Rapid 2023				Tournament Dr Pieter Hangelbroek Rapid 2023
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2023-10-28	rnd 5	type Rapid	result 1
		Opponent Campher, H (Hannah)				Opponent Koen, JP (Jan-Paul)
2	3	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 3	type Rapid	result 1	date 2023-06-16	rnd 5	type Rapid	result 1
		Opponent Odendaal, H (Hayden)				Opponent Eberwein, HJ (Heinrich)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Carel`s Chess Open 2022				Tournament Lux Deo NG Kerk Chess Open 2022
		date 2022-03-05	rnd 3	type Standard	result 1	date 2022-04-09	rnd 5	type Standard	result 1
		Opponent Madibo, O (Oratilwe)				Opponent Rajaram, E (Ekavir)
2	6	Tournament VaalPark Primary Open Chess 2023				Tournament Overvaal Ope Jul 2023
		date 2023-06-16	rnd 3	type Rapid	result 1	date 2023-07-22	rnd 3	type Standard	result 1
		Opponent Odendaal, H (Hayden)				Opponent Van Den Berg, N (Nathan)
3	5	Tournament 2023 Gauteng Top Schools				Tournament Driehoek Open Chess Tournament 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-09-13	rnd 4	type Standard	result 1
		Opponent Mnguni, N (Neo)				Opponent Maseloane, T (Tshepang)

#	Games	Start				End
1	8	Tournament Carel`s Chess Open 2022				Tournament Lux Deo NG Kerk Chess Open 2022
		date 2022-03-05	rnd 3	type Standard	result 1	date 2022-04-09	rnd 5	type Standard	result 1
		Opponent Madibo, O (Oratilwe)				Opponent Rajaram, E (Ekavir)
2	5	Tournament 2023 Gauteng Top Schools				Tournament Driehoek Open Chess Tournament 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-09-13	rnd 4	type Standard	result 1
		Opponent Mnguni, N (Neo)				Opponent Maseloane, T (Tshepang)
3	4	Tournament Vaalpark Primary Chess Open 2024				Tournament Sedibeng Chess Open 11 May 2024
		date 2024-04-13	rnd 5	type Standard	result 1	date 2024-05-11	rnd 3	type Standard	result 1
		Opponent Joubert, J (Jan Johannes)				Opponent Mosoeu, O (Oratiloe)

#	Games	Start				End
1	3	Tournament Dr Pieter Hangelbroek Rapid 2023				Tournament Dr Pieter Hangelbroek Rapid 2023
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2023-10-28	rnd 5	type Rapid	result 1
		Opponent Campher, H (Hannah)				Opponent Koen, JP (Jan-Paul)
2	3	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 3	type Rapid	result 1	date 2023-06-16	rnd 5	type Rapid	result 1
		Opponent Odendaal, H (Hayden)				Opponent Eberwein, HJ (Heinrich)

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	Van Der Net ,ME (Mariel)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Van Der Net ,ME (Mariel)	4	1001.2	576.2	4	988.9	576.2	0	0	0	0	0	0
2	Kotzee ,A (Armand)	4	1.5	-106.2	3	1.5	0	1	0	-425	0	0	0
2	Kotzee ,A (Armand)	4	1323.9	1217.6	3	1254	1323.9	1	1258.4	898.9	0	0	0
3	Mittermaier ,G (Gunther)	4	1	-212.5	3	1	-141.7	1	0	-425	0	0	0
3	Mittermaier ,G (Gunther)	4	1224.9	1012.4	3	1173.5	1083.2	1	1011.3	799.9	0	0	0
4	Marimuthu ,S (Shaylen)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Marimuthu ,S (Shaylen)	3	1248.2	1106.5	3	1245.7	1106.5	0	0	0	0	0	0
5	Weber ,KP (Keagan Peter)	3	3	425	3	3	425	0	0	0	0	0	0
5	Weber ,KP (Keagan Peter)	3	1121	1546	3	1110.4	1546	0	0	0	0	0	0
6	Botha ,OJ (Owen Johan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Botha ,OJ (Owen Johan)	3	1357.5	1215.8	3	1357	1215.8	0	0	0	0	0	0
7	Tolmay ,L (Llewellyn)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
7	Tolmay ,L (Llewellyn)	3	1327.6	1185.9	3	1322.9	1185.9	0	0	0	0	0	0
8	Van Der Merwe ,L (Lilee)	3	2	141.7	2	2	425	1	0	-425	0	0	0
8	Van Der Merwe ,L (Lilee)	3	1121.2	1262.9	2	1083.3	1546.2	1	1200	696.2	0	0	0
9	Chamo ,M (Mpho)	2	1	0	2	1	0	0	0	0	0	0	0
9	Chamo ,M (Mpho)	2	1204	1204	2	1187.1	1204	0	0	0	0	0	0
10	Majola ,O (Omphile)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Majola ,O (Omphile)	2	1428	1003	2	1403.7	1003	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Farrell, J (Jonty)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms