Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Lange, Z (Zanco)

Chess SA id

1130142637

FIDE id

Date of birth

2013-04-16 (U14)

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

18.5

Junior GPX Points

1196.5

Item	Main	Standard	Rapid	Blitz
Rating	1227.2	1223	1237.7	1200
Raw rating	1227.2	1223	1221.8	1200
Weighted rating	1221.2	1194	1237.7	1200
Weighted performance	1192.7	1113.8	0	0
Floor	760	735.8	757.3	700
K-factor	36	36	36	36
Min/Max rating change allowed	159.5	160.5	160.7	165.8
Highest rating	1260 2025-05-05	1250.2 2022-06-01	1308.5 2024-02-01	1200 2018-10-01
Highest raw rating	1260 2025-05-05	1235.8 2025-07-01	1257.3 2025-02-01	1200 2024-02-01
Highest weighted rating	1260 2023-07-01	1235.8 2023-07-01	1240 2025-08-01	1200 2018-10-01
Highest weighted performance	1253.4 2022-06-01	1250.2 2022-06-01	1308.5 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-1	0
New rating	1227.2	1223	1236.7	1200
Analysis
Rating	1227.2	1223	1237.7	1200
Raw rating	1227.2	1223	1221.8	1200
Weighted rating	1221.2	1194	1237.7
Weighted performance	1192.7	1113.8	0
K-factor	36	36	36	36
Floor	760	735.8	757.3	700
Max/Min rating change allowed	159.5	160.5	160.7	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	1227.2	1223	1221.8	1200
New weighted rating	1222.7	1197.4	1236.7	1200
New weighted performance	1185.3	1106.7	0	0
Temp new rating	1227.2	1223	1236.7	1200
Temp new rating +/-	0	0	-1	0
Final new rating +/-	0	0	-1	0
New rating	1227.2	1223	1236.7	1200
New K-factor	36	36	36	36
New floor	760	735.8	757.3	700

Item	Main	Standard	Rapid
	0	0	0
	22	15	7
	10	0	10
	9	9	0
	10	10	0
	0	0	0
History	51	34	17

Games since
	Main 32	Standard 15		Rapid 17		Blitz 0
Gender	Male
Age group	U14
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	22	11.5	52.27	19.3	1237.9	1257.2
Standard	15	8.5	56.67	56.7	1248.9	1305.5
Rapid	7	3	42.86	-60.7	1214.3	1153.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	51	25.5	50	0	1228	1228
Standard	34	16.5	48.53	-12.5	1234.8	1222.3
Rapid	17	9	52.94	25	1214.5	1239.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1227.2	1223	1221.8	1200
2025-09-30	1227.2	1223	1221.8	1200
2025-09-01	1227.2	1223	1221.8	1200
2025-08-01	1250.4	1235.8	1240	1200
2025-07-01	1250.4	1235.8	1239.2	1200
2025-06-01	1247.8	1229.3	1238.3	1200
2025-05-01	1260	1229.3	1257.3	1200
2025-04-01	1213.4	1162.7	1257.3	1200
2025-03-01	1213.4	1162.7	1257.3	1200
2025-02-01	1213.4	1162.7	1257.3	1200
2025-01-01	1200.3	1160.6	1237.5	1200
2024-12-01	1200.3	1160.6	1237.5	1200
2024-11-01	1200.3	1160.6	1237.5	1200
2024-10-01	1200.3	1160.6	1237.5	1200
2024-09-01	1200.3	1160.6	1237.5	1200
2024-08-01	1200.3	1160.6	1237.5	1200
2024-07-01	1200.3	1160.6	1237.5	1200
2024-09-01	1200.3	1160.6	1237.5	1200
2024-05-01	1200.3	1160.6	1237.5	1200
2024-04-01	1200.3	1160.6	1237.5	1200
2024-03-01	1186.5	1160.6	1223.8	1200
2024-02-01	1169.7	1160.6	1200	1200
2024-01-01	1169.7	1160.6	1200	1200
2023-12-01	1169.7	1160.6	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 North Schools Teams 2025 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Benoni Primary School Cluster Teams 2025 (U13A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	1	0	Yes	Analysis
3	Ekurhuleni North School District Finals 2025 (U13 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
4	RMS Rapid Chess Open 31 May 2025 (U13)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	1	0	Yes	Analysis
5	Benoni Primary School Cluster 12 April 2025 (U13 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	LS Northmead Trials 2025 (U13)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	3	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 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Benoni Primary School Cluster Teams 2025 (U13A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	1	0	Yes	Analysis
3	Ekurhuleni North School District Finals 2025 (U13 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
4	RMS Rapid Chess Open 31 May 2025 (U13)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	1	0	Yes	Analysis
5	Benoni Primary School Cluster 12 April 2025 (U13 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	LS Northmead Trials 2025 (U13)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Benoni Primary School Cluster Individuals 2024 (U11 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
8	Laerskool Northmead Proewe 2024 (U11)	2024-02-10	2024-02-10	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	2023 Ekurhuleni North District Schools Finals (U11)	2023-07-29	2023-07-29	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
10	Ekurhuleni North Schools Individual Finals 2023 (U11 Boys)	2023-05-12	2023-05-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	ACB Invitation Chess Tournament 2022 (U9)	2022-06-11	2022-06-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
12	Ekurhuleni-North Schools Finals Indiv 2022 (U9 Boys)	2022-05-13	2022-05-13	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament LS Northmead Trials 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Scholtz, E (Edmund)				Opponent Nhemachena, L (Liam)
2	3	Tournament LS Northmead Trials 2025				Tournament LS Northmead Trials 2025
		date 2025-01-25	rnd 1	type Rapid	result 1	date 2025-01-25	rnd 3	type Rapid	result 0.5
		Opponent O Bryan, A (Ava)				Opponent Cronje, J (Justin)
3	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 1	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Oelofse, H (Hannro)

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Herbst, W (Wihan)				Opponent Nhemachena, L (Liam)
2	3	Tournament ACB Invitation Chess Tournament 2022				Tournament ACB Invitation Chess Tournament 2022
		date 2022-06-11	rnd 2	type Standard	result 1	date 2022-06-11	rnd 4	type Standard	result 1
		Opponent Lingevelder, L (Lazuene)				Opponent Rossouw, L (Lience)
3	2	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 3	type Standard	result 0.5	date 2025-06-14	rnd 4	type Standard	result 1
		Opponent Futama, B (Bokang)				Opponent Maqina, I (Iminami)

#	Games	Start				End
1	3	Tournament LS Northmead Trials 2025				Tournament LS Northmead Trials 2025
		date 2025-01-25	rnd 1	type Rapid	result 1	date 2025-01-25	rnd 3	type Rapid	result 0.5
		Opponent O Bryan, A (Ava)				Opponent Cronje, J (Justin)
2	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 1	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Oelofse, H (Hannro)
3	3	Tournament Laerskool Northmead Proewe 2024				Tournament Laerskool Northmead Proewe 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Pretorius, L (Luke)				Opponent Venter, L (Luan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament LS Northmead Trials 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Scholtz, E (Edmund)				Opponent Nhemachena, L (Liam)
2	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 1	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Oelofse, H (Hannro)
3	3	Tournament Laerskool Northmead Proewe 2024				Tournament Laerskool Northmead Proewe 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Pretorius, L (Luke)				Opponent Venter, L (Luan)

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Herbst, W (Wihan)				Opponent Nhemachena, L (Liam)
2	3	Tournament ACB Invitation Chess Tournament 2022				Tournament ACB Invitation Chess Tournament 2022
		date 2022-06-11	rnd 2	type Standard	result 1	date 2022-06-11	rnd 4	type Standard	result 1
		Opponent Lingevelder, L (Lazuene)				Opponent Rossouw, L (Lience)
3	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Van Wyk, J (Jamanique)				Opponent Van Wyk, J (Jamanique)

#	Games	Start				End
1	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 1	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Oelofse, H (Hannro)
2	3	Tournament Laerskool Northmead Proewe 2024				Tournament Laerskool Northmead Proewe 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Pretorius, L (Luke)				Opponent Venter, L (Luan)
3	1	Tournament LS Northmead Trials 2025				Tournament LS Northmead Trials 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 5	type Rapid	result 1
		Opponent Scholtz, E (Edmund)				Opponent Scholtz, E (Edmund)

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	Khomola ,R (Ronewa Marlow)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Khomola ,R (Ronewa Marlow)	2	1322.9	897.9	2	1324.2	897.9	0	0	0	0	0	0
2	Backhouse ,L (Leandre)	2	1	0	0	0	0	2	1	0	0	0	0
2	Backhouse ,L (Leandre)	2	1140.2	1140.2	0	0	0	2	1283.8	1140.2	0	0	0
3	Opperman ,N (Naude)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Opperman ,N (Naude)	1	1336.7	911.7	1	1317	911.7	0	0	0	0	0	0
4	Mmola ,B (Botlhale Achievement)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mmola ,B (Botlhale Achievement)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Costelha ,M (Miguel)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Costelha ,M (Miguel)	1	1257.2	832.2	1	1265.6	832.2	0	0	0	0	0	0
6	Robiyane ,S (Sbonelo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Robiyane ,S (Sbonelo)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Pieters ,I (Imrich)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Pieters ,I (Imrich)	1	1322.7	897.7	1	1328.3	897.7	0	0	0	0	0	0
8	Plummer ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Plummer ,M (Matthew)	1	1314.1	889.1	1	1303.3	889.1	0	0	0	0	0	0
9	Van Rensburg ,J (Janru)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Rensburg ,J (Janru)	1	1217.9	1642.9	1	1221.6	1642.9	0	0	0	0	0	0
10	Moyo ,N (Nhlanhla)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Moyo ,N (Nhlanhla)	1	1127.1	702.1	1	1112.2	702.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

De Lange, Z (Zanco)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms