Chess South Africa Ratings Database

PLAYER PAGE

Personal

Sumahili, L (Lorenzo)

Chess SA id

1150302646

FIDE id

Date of birth

2015-10-16 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1220.1	1197.7	1240	1200
Raw rating	1209.7	1185.5	1240	1200
Weighted rating	1220.1	1197.7	1237.2	1200
Weighted performance	0	0	0	0
Floor	724	700	740	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.5	169.3	156.6	165.8
Highest rating	1347.4 2024-04-01	1200 2024-05-01	1418.3 2024-04-01	1200 2024-05-01
Highest raw rating	1224 2024-05-01	1200 2024-05-01	1240 2024-05-01	1200 2024-05-01
Highest weighted rating	1224 2024-10-01	1200 2024-05-01	1240 2024-10-01	1200 2024-05-01
Highest weighted performance	1347.4 2024-04-01	1200 2024-05-01	1418.3 2024-04-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.6	-1.1	0	0
New rating	1219.5	1196.7	1240	1200
Analysis
Rating	1220.1	1197.7	1240	1200
Raw rating	1209.7	1185.5	1240	1200
Weighted rating	1220.1	1197.7	1237.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	724	700	740	700
Max/Min rating change allowed	163.5	169.3	156.6	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	1209.7	1185.5	1240	1200
New weighted rating	1219.5	1196.7	1238	1200
New weighted performance	0	0	0	0
Temp new rating	1219.5	1196.7	1240	1200
Temp new rating +/-	-0.6	-1.1	0	0
Final new rating +/-	-0.6	-1.1	0	0
New rating	1219.5	1196.7	1240	1200
New K-factor	36	36	36	36
New floor	724	700	740	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	4	0	4
	0	0	0
	0	0	0
	0	0	0
History	9	5	4

Games since
	Main 9	Standard 5		Rapid 4		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	5	2	40	-85	1234.9	1149.9
Standard	5	2	40	-85	1234.9	1149.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	5	55.56	47.2	1219.4	1266.6
Standard	5	2	40	-85	1234.9	1149.9
Rapid	4	3	75	212.5	1200	1412.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1209.7	1185.5	1240	1200
2025-09-01	1209.7	1185.5	1240	1200
2025-08-01	1224	1200	1240	1200
2025-07-01	1224	1200	1240	1200
2025-06-01	1224	1200	1240	1200
2025-05-01	1224	1200	1240	1200
2025-04-01	1224	1200	1240	1200
2025-03-01	1224	1200	1240	1200
2025-02-01	1224	1200	1240	1200
2025-01-01	1224	1200	1240	1200
2024-12-01	1224	1200	1240	1200
2024-11-01	1224	1200	1240	1200
2024-10-01	1224	1200	1240	1200
2024-09-01	1224	1200	1240	1200
2024-08-01	1224	1200	1240	1200
2024-07-01	1224	1200	1240	1200
2024-06-01	1224	1200	1240	1200
2024-08-01	1224	1200	1240	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	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	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Kempton Park Cluster Teams League 2024 (U9B)	2024-04-13	2024-04-13	Rapid	Ekurhuleni (GE)	5	4	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Kempton Park Cluster Teams League 2024				Tournament Ekurhuleni North Schools Teams 2025
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Du Plessis, A (Andries)				Opponent Seluane, K (Kwelihle)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Van Wyk, E (Ethan)				Opponent Van Wyk, E (Ethan)
3	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 1	type Rapid	result 1
		Opponent Makgamatha, M (Molatelo)				Opponent Makgamatha, M (Molatelo)

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Van Wyk, E (Ethan)				Opponent Van Wyk, E (Ethan)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Seluane, K (Kwelihle)				Opponent Seluane, K (Kwelihle)

#	Games	Start				End
1	2	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2024-04-13	rnd 5	type Rapid	result 1
		Opponent Du Plessis, A (Andries)				Opponent Vermeulen, G (Gabrielle)
2	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 1	type Rapid	result 1
		Opponent Makgamatha, M (Molatelo)				Opponent Makgamatha, M (Molatelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Kempton Park Cluster Teams League 2024				Tournament Ekurhuleni North Schools Teams 2025
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Du Plessis, A (Andries)				Opponent Seluane, K (Kwelihle)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Van Wyk, E (Ethan)				Opponent Van Wyk, E (Ethan)
3	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 1	type Rapid	result 1
		Opponent Makgamatha, M (Molatelo)				Opponent Makgamatha, M (Molatelo)

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Van Wyk, E (Ethan)				Opponent Van Wyk, E (Ethan)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Seluane, K (Kwelihle)				Opponent Seluane, K (Kwelihle)

#	Games	Start				End
1	2	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2024-04-13	rnd 5	type Rapid	result 1
		Opponent Du Plessis, A (Andries)				Opponent Vermeulen, G (Gabrielle)
2	1	Tournament Kempton Park Cluster Teams League 2024				Tournament Kempton Park Cluster Teams League 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 1	type Rapid	result 1
		Opponent Makgamatha, M (Molatelo)				Opponent Makgamatha, M (Molatelo)

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	Seluane ,K (Kwelihle)	1	1	425	1	1	425	0	0	0	0	0	0
1	Seluane ,K (Kwelihle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Van Wyk ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
2	Van Wyk ,E (Ethan)	1	1227	1652	1	1228.8	1652	0	0	0	0	0	0
3	Venter ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Venter ,L (Luan)	1	1347.8	922.8	1	1291.7	922.8	0	0	0	0	0	0
4	Holgreaves ,P (Peyton)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Holgreaves ,P (Peyton)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mabula ,A (Arabile)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mabula ,A (Arabile)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Du Plessis ,A (Andries)	1	1	425	0	0	0	1	1	425	0	0	0
6	Du Plessis ,A (Andries)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Vermeulen ,G (Gabrielle)	1	1	425	0	0	0	1	1	425	0	0	0
7	Vermeulen ,G (Gabrielle)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Dyantyi ,Z (Zolani)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Dyantyi ,Z (Zolani)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Makgamatha ,M (Molatelo)	1	1	425	0	0	0	1	1	425	0	0	0
9	Makgamatha ,M (Molatelo)	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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PLAYER PAGE

Personal

Sumahili, L (Lorenzo)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms