Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lewis, J (Jonah)

Chess SA id

100017964

FIDE id

Date of birth

2000-09-13 (Adult)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-02-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1220.6	1221.3	1217	1217
Raw rating	1220.6	1221.3	1217	1217
Weighted rating	1220.6	1221.3	1217	1217
Weighted performance	0	0	0	0
Floor	720.6	721.3	717	717
K-factor	36	36	36	36
Min/Max rating change allowed	161	160.9	161.8	161.8
Highest rating	1244.4 2018-02-01	1244.4 2018-02-01	1217 2019-07-01	1217 2019-07-01
Highest raw rating	1220.6 2024-02-01	1221.3 2024-02-01	1217 2024-02-01	1217 2024-02-01
Highest weighted rating	1220.6 2025-02-01	1221.3 2024-02-01	1217 2019-07-01	1217 2019-07-01
Highest weighted performance	1244.4 2018-02-01	1244.4 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1220.6	1221.3	1217	1217
Analysis
Rating	1220.6	1221.3	1217	1217
Raw rating	1220.6	1221.3	1217	1217
Weighted rating	1220.6	1221.3	1217
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	720.6	721.3	717	717
Max/Min rating change allowed	161	160.9	161.8	161.8
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	1220.6	1221.3	1217	1217
New weighted rating	1220.6	1221.3	1217	1217
New weighted performance	0	0	0	0
Temp new rating	1220.6	1221.3	1217	1217
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1220.6	1221.3	1217	1217
New K-factor	36	36	36	36
New floor	720.6	721.3	717	717

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	102	102

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
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	5	3	60	85	1158.5	1243.5
Standard	5	3	60	85	1158.5	1243.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1220.6	1221.3	1217	1217
2025-09-01	1220.6	1221.3	1217	1217
2025-08-01	1220.6	1221.3	1217	1217
2025-07-01	1220.6	1221.3	1217	1217
2025-06-01	1220.6	1221.3	1217	1217
2025-05-01	1220.6	1221.3	1217	1217
2025-04-01	1220.6	1221.3	1217	1217
2025-03-01	1220.6	1221.3	1217	1217
2025-02-01	1220.6	1221.3	1217	1217
2025-01-01	1220.6	1221.3	1217	1217
2024-12-01	1220.6	1221.3	1217	1217
2024-11-01	1220.6	1221.3	1217	1217
2024-10-01	1220.6	1221.3	1217	1217
2024-09-01	1220.6	1221.3	1217	1217
2024-08-01	1220.6	1221.3	1217	1217
2024-07-01	1220.6	1221.3	1217	1217
2024-06-01	1220.6	1221.3	1217	1217
2024-08-01	1220.6	1221.3	1217	1217
2024-04-01	1220.6	1221.3	1217	1217
2024-03-01	1220.6	1221.3	1217	1217
2024-02-01	1220.6	1221.3	1217	1217
2024-01-01	1220.6	1221.3	1217	1217
2023-12-01	1220.6	1221.3	1217	1217
2023-11-01	1220.6	1221.3	1217	1217

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	Buffalo City 1st Chess Trials 2018 (U20A)	2018-02-03	2018-02-03	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 1	type Standard	result 1	date 2018-02-03	rnd 3	type Standard	result 0.5
		Opponent Hendrikse, C (Carl)				Opponent Adams, W-D (Wazeerud-Deen)
2	1	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 5	type Standard	result 0.5	date 2018-02-03	rnd 5	type Standard	result 0.5
		Opponent Maza, O (Okuhle)				Opponent Maza, O (Okuhle)

#	Games	Start				End
1	3	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 1	type Standard	result 1	date 2018-02-03	rnd 3	type Standard	result 0.5
		Opponent Hendrikse, C (Carl)				Opponent Adams, W-D (Wazeerud-Deen)
2	1	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 5	type Standard	result 0.5	date 2018-02-03	rnd 5	type Standard	result 0.5
		Opponent Maza, O (Okuhle)				Opponent Maza, O (Okuhle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 1	type Standard	result 1	date 2018-02-03	rnd 2	type Standard	result 1
		Opponent Hendrikse, C (Carl)				Opponent Rampersad, T (Trisha)

#	Games	Start				End
1	2	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-03	rnd 1	type Standard	result 1	date 2018-02-03	rnd 2	type Standard	result 1
		Opponent Hendrikse, C (Carl)				Opponent Rampersad, T (Trisha)

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	Hendrikse ,C (Carl)	1	1	425	1	1	425	0	0	0	0	0	0
1	Hendrikse ,C (Carl)	1	859.6	1284.6	1	859.6	1284.6	0	0	0	0	0	0
2	Adams ,W-D (Wazeerud-Deen)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Adams ,W-D (Wazeerud-Deen)	1	1160.1	1160.1	1	1160.1	1160.1	0	0	0	0	0	0
3	Jikijela ,M (Musa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Jikijela ,M (Musa)	1	1556.9	1131.9	1	1556.9	1131.9	0	0	0	0	0	0
4	Maza ,O (Okuhle)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Maza ,O (Okuhle)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
5	Rampersad ,T (Trisha)	1	1	425	1	1	425	0	0	0	0	0	0
5	Rampersad ,T (Trisha)	1	1015.8	1440.8	1	1015.8	1440.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Lewis, J (Jonah)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms