Chess South Africa Ratings Database

PLAYER PAGE

Personal

Duvenage, A (Alejandro)

Chess SA id

1140145694

FIDE id

Date of birth

2014-01-02 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1369

Item	Main	Standard	Rapid	Blitz
Rating	1441.5	1440.1	1200	1200
Raw rating	1397.2	1407.8	1200	1200
Weighted rating	1288.2	1288.8	1200	1200
Weighted performance	1441.5	1440.1	0	0
Floor	903.5	914.5	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	125.2	123.3	165.8	165.8
Highest rating	1451.7 2025-09-01	1448.8 2025-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1403.5 2025-09-01	1414.5 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1288.2 2025-09-30	1288.8 2025-09-30	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1451.7 2025-09-01	1448.8 2025-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	-0.5	0	0
New rating	1441	1439.6	1200	1200
Analysis
Rating	1441.5	1440.1	1200	1200
Raw rating	1397.2	1407.8	1200	1200
Weighted rating	1288.2	1288.8	1200
Weighted performance	1441.5	1440.1	0
K-factor	32	32	36	36
Floor	903.5	914.5	700	700
Max/Min rating change allowed	125.2	123.3	165.8	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	1397.2	1407.8	1200	1200
New weighted rating	1299.1	1300.4	1200	1200
New weighted performance	1441	1439.6	0	0
Temp new rating	1441	1439.6	1200	1200
Temp new rating +/-	-0.5	-0.5	0	0
Final new rating +/-	-0.5	-0.5	0	0
New rating	1441	1439.6	1200	1200
New K-factor	32	32	36	36
New floor	903.5	914.5	700	700

Item	Main	Standard
	0	0
	35	35
	29	29
	0	0
	5	5
	0	0
History	69	69

Games since
	Main 64	Standard 64		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1758		611		87
Male	1475		501		71
U12	217		80		9
U12 Male	156		54		6
Standard
	RSA		Province		Region
Overall	1666		625		85
Male	1387		512		70
U12	205		82		10
U12 Male	146		54		7
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	35	23	65.71	133.6	1272.1	1405.6
Standard	35	23	65.71	133.6	1272.1	1405.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	69	41	59.42	80.1	1257.6	1337.6
Standard	69	41	59.42	80.1	1257.6	1337.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1397.2	1407.8	1200	1200
2025-09-01	1403.5	1414.5	1200	1200
2025-08-01	1336.6	1334.3	1200	1200
2025-07-01	1336.6	1334.3	1200	1200
2025-06-01	1330.9	1327.7	1200	1200
2025-05-01	1283.1	1278.1	1200	1200
2025-04-01	1283.1	1278.1	1200	1200
2025-03-01	1265.8	1262.6	1200	1200
2025-02-01	1269.6	1270.3	1200	1200
2025-01-01	1269.6	1270.3	1200	1200
2024-12-01	1226.3	1226	1200	1200
2024-11-01	1226.3	1226	1200	1200
2024-10-01	1195.8	1187.1	1200	1200
2024-09-01	1226.3	1225.6	1200	1200
2024-08-01	1226.3	1225.6	1200	1200
2024-07-01	1225.7	1227.4	1200	1200
2024-06-01	1220.9	1225.6	1200	1200
2024-08-01	1220.9	1225.6	1200	1200
2024-04-01	1220.9	1225.6	1200	1200
2024-03-01	1220.9	1225.6	1200	1200
2024-02-01	1220.9	1225.6	1200	1200
2024-01-01	1220.9	1225.6	1200	1200
2023-12-01	1220.9	1225.6	1200	1200
2023-11-01	1220.9	1225.6	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 Trial 4 2025 (F)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	D5 Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	Ekurhuleni Trial 2 2025 (F)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
5	D5 Anker 2025 (U11 Boys)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	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 Trial 4 2025 (F)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	D5 Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	Ekurhuleni Trial 2 2025 (F)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
5	D5 Anker 2025 (U11 Boys)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	Gauteng Inter-Region at UJ 2024 (U12 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
9	Gauteng Top Schools 2024 (U11 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
10	Ekurhuleni Closed 2024 (U12)	2024-09-21	2024-09-21	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
11	Ekurhuleni Trails 3 2024 (U12)	2024-08-24	2024-08-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
12	Ekurhuleni Trails 2 2024 (U12)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
13	Ekurhuleni Trails 1 2024 (U12)	2024-06-01	2024-06-01	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
14	2022 Gauteng Schools Team Championships (U9 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Ekurhuleni Chess Open 2025				Tournament D5 Anker 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Van Niekerk, K (Kayden)				Opponent Emmenis, A (Aiden)
2	6	Tournament Ekurhuleni Trials 2025				Tournament D5 Teams 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Myburgh, E (Eben)				Opponent Haupfleish, I (Isabella)
3	4	Tournament Ekurhuleni Trails 1 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Janse Van Vuuren, E (Estiaan)				Opponent Verwey, R (Reuben)

#	Games	Start				End
1	7	Tournament Ekurhuleni Chess Open 2025				Tournament D5 Anker 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Van Niekerk, K (Kayden)				Opponent Emmenis, A (Aiden)
2	6	Tournament Ekurhuleni Trials 2025				Tournament D5 Teams 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Myburgh, E (Eben)				Opponent Haupfleish, I (Isabella)
3	4	Tournament Ekurhuleni Trails 1 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Janse Van Vuuren, E (Estiaan)				Opponent Verwey, R (Reuben)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Ekurhuleni Chess Open 2025				Tournament D5 Anker 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Van Niekerk, K (Kayden)				Opponent Emmenis, A (Aiden)
2	6	Tournament Ekurhuleni Trials 2025				Tournament D5 Teams 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Myburgh, E (Eben)				Opponent Haupfleish, I (Isabella)
3	4	Tournament Ekurhuleni Trails 1 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Janse Van Vuuren, E (Estiaan)				Opponent Verwey, R (Reuben)

#	Games	Start				End
1	7	Tournament Ekurhuleni Chess Open 2025				Tournament D5 Anker 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Van Niekerk, K (Kayden)				Opponent Emmenis, A (Aiden)
2	6	Tournament Ekurhuleni Trials 2025				Tournament D5 Teams 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Myburgh, E (Eben)				Opponent Haupfleish, I (Isabella)
3	4	Tournament Ekurhuleni Trails 1 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Janse Van Vuuren, E (Estiaan)				Opponent Verwey, R (Reuben)

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	Khumalo ,ME (Musawenkosi Ethan)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Khumalo ,ME (Musawenkosi Ethan)	3	1420.5	995.5	3	1449	995.5	0	0	0	0	0	0
2	Mosala ,A (Atlehang)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Mosala ,A (Atlehang)	3	1396.7	1255.1	3	1378	1255.1	0	0	0	0	0	0
3	Mayanga ,D (David)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Mayanga ,D (David)	3	1207.5	1349.2	3	1192.4	1349.2	0	0	0	0	0	0
4	Muthoni ,A (Angelina Akua)	2	2	425	2	2	425	0	0	0	0	0	0
4	Muthoni ,A (Angelina Akua)	2	1199.8	1624.8	2	1199.8	1624.8	0	0	0	0	0	0
5	Shaik ,H (Haneef)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Shaik ,H (Haneef)	2	1485.4	1060.4	2	1475.4	1060.4	0	0	0	0	0	0
6	Thoobe ,M (Moshala)	2	2	425	2	2	425	0	0	0	0	0	0
6	Thoobe ,M (Moshala)	2	1211.6	1636.6	2	1211.2	1636.6	0	0	0	0	0	0
7	Van Der Merwe ,A (Adele)	2	1	0	2	1	0	0	0	0	0	0	0
7	Van Der Merwe ,A (Adele)	2	1104.1	1104.1	2	1091.8	1104.1	0	0	0	0	0	0
8	Bhomela ,O (Owethu)	2	1	0	2	1	0	0	0	0	0	0	0
8	Bhomela ,O (Owethu)	2	1194.9	1194.9	2	1193.8	1194.9	0	0	0	0	0	0
9	Verwey ,R (Reuben)	2	2	425	2	2	425	0	0	0	0	0	0
9	Verwey ,R (Reuben)	2	1327.3	1752.3	2	1330.7	1752.3	0	0	0	0	0	0
10	Khumalo ,B (Bandile)	1	1	425	1	1	425	0	0	0	0	0	0
10	Khumalo ,B (Bandile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Duvenage, A (Alejandro)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms