Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonas, LF (Lesedi Ferdinand)

Chess SA id

100014232

FIDE id

Date of birth

2000-10-21 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-01-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1363.1	1361.3	1200	1163.6
Raw rating	1363.1	1361.3	1200	1163.6
Weighted rating	1363.1	1361.3	1199.6	1163.6
Weighted performance	321.6	320.8	0	0
Floor	863.1	861.3	700	663.6
K-factor	36	36	36	40
Min/Max rating change allowed	131.4	131.8	165.8	174.6
Highest rating	1381.7 2020-01-01	1379.6 2020-01-01	1200 2024-02-01	1242.9 2018-12-01
Highest raw rating	1363.1 2024-02-01	1361.3 2024-02-01	1200 2024-02-01	1163.6 2024-02-01
Highest weighted rating	1363.1 2024-02-01	1361.3 2024-02-01	1200 2024-11-01	1163.6 2024-11-01
Highest weighted performance	1381.7 2020-01-01	1379.6 2020-01-01	1200 2024-02-01	1242.9 2018-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1363.1	1361.3	1200	1163.6
Analysis
Rating	1363.1	1361.3	1200	1163.6
Raw rating	1363.1	1361.3	1200	1163.6
Weighted rating	1363.1	1361.3	1199.6
Weighted performance	321.6	320.8	0
K-factor	36	36	36	40
Floor	863.1	861.3	700	663.6
Max/Min rating change allowed	131.4	131.8	165.8	174.6
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	1363.1	1361.3	1200	1163.6
New weighted rating	1363.1	1361.3	1199.9	1163.6
New weighted performance	321.2	320.3	0	0
Temp new rating	1363.1	1361.3	1200	1163.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1363.1	1361.3	1200	1163.6
New K-factor	36	36	36	40
New floor	863.1	861.3	700	663.6

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	225	219	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	105	59	56.19	52.6	1211	1263.6
Standard	99	57	57.58	64.4	1195.4	1259.8
Rapid	0	0	0	0	0	0
Blitz	6	2	33.33	-141.7	1467.6	1325.9

Date	Main	Standard	Rapid	Blitz
2025-09-30	1363.1	1361.3	1200	1163.6
2025-09-01	1363.1	1361.3	1200	1163.6
2025-08-01	1363.1	1361.3	1200	1163.6
2025-07-01	1363.1	1361.3	1200	1163.6
2025-06-01	1363.1	1361.3	1200	1163.6
2025-05-01	1363.1	1361.3	1200	1163.6
2025-04-01	1363.1	1361.3	1200	1163.6
2025-03-01	1363.1	1361.3	1200	1163.6
2025-02-01	1363.1	1361.3	1200	1163.6
2025-01-01	1363.1	1361.3	1200	1163.6
2024-12-01	1363.1	1361.3	1200	1163.6
2024-11-01	1363.1	1361.3	1200	1163.6
2024-10-01	1363.1	1361.3	1200	1163.6
2024-09-01	1363.1	1361.3	1200	1163.6
2024-08-01	1363.1	1361.3	1200	1163.6
2024-07-01	1363.1	1361.3	1200	1163.6
2024-06-01	1363.1	1361.3	1200	1163.6
2024-08-01	1363.1	1361.3	1200	1163.6
2024-04-01	1363.1	1361.3	1200	1163.6
2024-03-01	1363.1	1361.3	1200	1163.6
2024-02-01	1363.1	1361.3	1200	1163.6
2024-01-01	1363.1	1361.3	1200	1163.6
2023-12-01	1363.1	1361.3	1162.2	1163.6
2023-11-01	1363.1	1361.3	1162.2	1163.6

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	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	4	1	Yes	Analysis
2	2019 South African Junior Team Championships (U20B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
3	2019 Gauteng School League Finals (U19 Open)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
4	2019 Alekhine Open (B)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	2019 D3 Team League (U19)	2019-07-20	2019-07-20	Standard	Tshwane (GTP)	3	3	2.5	Yes	Analysis
6	2019 Chris Greyling (B)	2019-04-27	2019-04-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	2019 Waterkloof Open (B)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
8	Grey College Team Championship 2019 (A)	2019-02-22	2019-02-23	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
9	2018 Inter Region Chess Championships	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	2	1.5	Yes	Analysis
10	South African Junior Blitz 2018 (U20)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	6	2	Yes	Analysis
11	South African Junior Team Championships 2018 (U20B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
12	2018 Gauteng North Open (B)	2018-10-20	2018-10-21	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
13	2018 Etienne Lewis Trials (U20)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
14	2018 Alekhine Open (B)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	2.5	Yes	Analysis
15	2018 D3 Tshwane North Individual Chess Championships (U17+U19 Boys)	2018-03-10	2018-03-10	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
16	2018 Blou Bul Open (C)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
17	Grey College Inter Team Chess Tournament 2018 (A)	2018-02-23	2018-02-24	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
18	2018 Tshwane Registration Open Chess Tournament (C)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
19	South African Junior Wildcard Championships 2017 (U18 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
20	South African Junior Team Championships 2017 (U18C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis

#	Games	Start				End
1	9	Tournament 2018 Blou Bul Open				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Litvin, L (Leu)				Opponent Tshimno, N (Nyathi)
2	6	Tournament 2019 Chris Greyling				Tournament 2019 Alekhine Open
		date 2019-04-27	rnd 5	type Standard	result 1	date 2019-08-09	rnd 2	type Standard	result 1
		Opponent Burgers, AJ (Adriaan)				Opponent Jones, W (William)
3	5	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 Blou Bul Open
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-02-17	rnd 2	type Standard	result 1
		Opponent Binda, B (Bafana)				Opponent Rudolph, N (Nathan)

#	Games	Start				End
1	9	Tournament 2018 Blou Bul Open				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Litvin, L (Leu)				Opponent Tshimno, N (Nyathi)
2	6	Tournament 2019 Chris Greyling				Tournament 2019 Alekhine Open
		date 2019-04-27	rnd 5	type Standard	result 1	date 2019-08-09	rnd 2	type Standard	result 1
		Opponent Burgers, AJ (Adriaan)				Opponent Jones, W (William)
3	6	Tournament South African Junior Team Championships 2018				Tournament Grey College Team Championship 2019
		date 2018-12-18	rnd 5	type Standard	result 1	date 2019-02-22	rnd 1	type Standard	result 1
		Opponent Van Rensburg, NC (Nicolaos)				Opponent Maile, E (Edward)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Michaels, J (Jacques)				Opponent Tissot Van Patot, D (Donovan)

#	Games	Start				End
1	5	Tournament Grey College Inter Team Chess Tournament 2018				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Themba)				Opponent Tshimno, N (Nyathi)
2	5	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 Blou Bul Open
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-02-17	rnd 2	type Standard	result 1
		Opponent Binda, B (Bafana)				Opponent Rudolph, N (Nathan)
3	3	Tournament 2019 D3 Team League				Tournament 2019 Alekhine Open
		date 2019-07-20	rnd 3	type Standard	result 1	date 2019-08-09	rnd 2	type Standard	result 1
		Opponent Pretorius, D (Dihan)				Opponent Jones, W (William)

#	Games	Start				End
1	5	Tournament Grey College Inter Team Chess Tournament 2018				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-02-24	rnd 4	type Standard	result 1	date 2018-03-10	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Themba)				Opponent Tshimno, N (Nyathi)
2	5	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 Blou Bul Open
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-02-17	rnd 2	type Standard	result 1
		Opponent Binda, B (Bafana)				Opponent Rudolph, N (Nathan)
3	3	Tournament 2019 D3 Team League				Tournament 2019 Alekhine Open
		date 2019-07-20	rnd 3	type Standard	result 1	date 2019-08-09	rnd 2	type Standard	result 1
		Opponent Pretorius, D (Dihan)				Opponent Jones, W (William)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Michaels, J (Jacques)				Opponent Tissot Van Patot, D (Donovan)

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	Fourie ,K (Keanan)	2	2	425	2	2	425	0	0	0	0	0	0
1	Fourie ,K (Keanan)	2	1225.1	1650.1	2	1227.8	1650.1	0	0	0	0	0	0
2	Marais ,DJ (Dawid Jacobus)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Marais ,DJ (Dawid Jacobus)	2	1406.2	981.2	2	1411.6	981.2	0	0	0	0	0	0
3	Nkuna ,A (Andrew)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Nkuna ,A (Andrew)	2	1371.2	946.2	2	1367.2	946.2	0	0	0	0	0	0
4	Cruywagen ,D (Dewan)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Cruywagen ,D (Dewan)	2	1407.8	982.8	2	1409.9	982.8	0	0	0	0	0	0
5	Chauke ,M (Mosa)	1	1	425	1	1	425	0	0	0	0	0	0
5	Chauke ,M (Mosa)	1	1099.1	1524.1	1	1081.2	1524.1	0	0	0	0	0	0
6	Ismail ,I (Imaan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Ismail ,I (Imaan)	1	1113	1538	1	1113	1538	0	0	0	0	0	0
7	Van Rensburg ,JT (Justus)	1	1	425	1	1	425	0	0	0	0	0	0
7	Van Rensburg ,JT (Justus)	1	1149.2	1574.2	1	1144.4	1574.2	0	0	0	0	0	0
8	Jones ,W (William)	1	1	425	1	1	425	0	0	0	0	0	0
8	Jones ,W (William)	1	1292.1	1717.1	1	1294.9	1717.1	0	0	0	0	0	0
9	Simpson ,M (Michael)	1	1	425	1	1	425	0	0	0	0	0	0
9	Simpson ,M (Michael)	1	1592.2	2017.2	1	1617.6	2017.2	0	0	0	0	0	0
10	Pienaar ,S (Stephen)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Pienaar ,S (Stephen)	1	1076.3	1076.3	1	1101	1076.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jonas, LF (Lesedi Ferdinand)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms