Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nel, Z (Zachery)

Chess SA id

1110301456

FIDE id

Date of birth

2011-02-04 (U16)

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

25.5

Junior GPX Points

1254.9

Item	Main	Standard	Rapid	Blitz
Rating	1292.3	1285	1216.5	1200
Raw rating	1281.1	1285	1215.9	1200
Weighted rating	1228.2	1219.4	1216.5	1200
Weighted performance	1292.3	0	0	0
Floor	781.1	785	718	700
K-factor	36	36	36	36
Min/Max rating change allowed	147.7	146.9	162.1	165.8
Highest rating	1292.3 2025-09-30	1285 2025-09-30	1282.8 2024-03-01	1200 2024-04-01
Highest raw rating	1281.1 2025-09-30	1285 2025-09-30	1218 2024-04-01	1200 2024-04-01
Highest weighted rating	1228.2 2025-09-30	1219.4 2025-09-30	1218 2024-10-01	1200 2024-04-01
Highest weighted performance	1292.3 2025-09-30	1200 2024-04-01	1282.8 2024-03-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	0	0.2	0
New rating	1291.8	1285	1216.6	1200
Analysis
Rating	1292.3	1285	1216.5	1200
Raw rating	1281.1	1285	1215.9	1200
Weighted rating	1228.2	1219.4	1216.5
Weighted performance	1292.3	0	0
K-factor	36	36	36	36
Floor	781.1	785	718	700
Max/Min rating change allowed	147.7	146.9	162.1	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	1281.1	1285	1215.9	1200
New weighted rating	1233.1	1225.3	1216.6	1200
New weighted performance	1291.8	0	0	0
Temp new rating	1291.8	1285	1216.6	1200
Temp new rating +/-	-0.5	0	0.2	0
Final new rating +/-	-0.5	0	0.2	0
New rating	1291.8	1285	1216.6	1200
New K-factor	36	36	36	36
New floor	781.1	785	718	700

Item	Main	Standard	Rapid
	0	0	0
	25	20	5
	8	3	5
	0	0	0
	0	0	0
	0	0	0
History	33	23	10

Games since
	Main 33	Standard 23		Rapid 10		Blitz 0
Gender	Male
Age group	U16
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	25	13	52	17	1300.1	1317.1
Standard	20	10.5	52.5	21.2	1311.7	1332.9
Rapid	5	2.5	50	0	1253.7	1253.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	33	17	51.52	12.9	1283.9	1296.8
Standard	23	11.5	50	0	1301.6	1301.6
Rapid	10	5.5	55	42.5	1243.1	1285.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1281.1	1285	1215.9	1200
2025-09-01	1252.4	1249.4	1215.9	1200
2025-08-01	1263.3	1263.1	1215.9	1200
2025-07-01	1263.3	1263.1	1215.5	1200
2025-06-01	1226	1219.9	1218	1200
2025-05-01	1209.8	1198	1218	1200
2025-04-01	1209.6	1198	1218	1200
2025-03-01	1209.3	1198	1218	1200
2025-02-01	1208.5	1196.7	1218	1200
2025-01-01	1201.4	1179.2	1218	1200
2024-12-01	1215.4	1200	1218	1200
2024-11-01	1215.4	1200	1218	1200
2024-10-01	1215.4	1200	1218	1200
2024-09-01	1215.4	1200	1218	1200
2024-08-01	1215.4	1200	1218	1200
2024-07-01	1215.4	1200	1218	1200
2024-06-01	1215.4	1200	1218	1200
2024-08-01	1215.4	1200	1218	1200
2024-04-01	1215.4	1200	1218	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 Trial 4 2025 (D)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Ekurhuleni Trials 2025 (D)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Ekurhuleni Trial 2 2025 (D)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	Kemptonpark School Cluster 2025 (U15)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
5	Ekurhuleni Trials 2025 (D)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Trial 4 2025 (D)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Ekurhuleni Trials 2025 (D)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Ekurhuleni Trial 2 2025 (D)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	Kemptonpark School Cluster 2025 (U15)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
5	Ekurhuleni Trials 2025 (D)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
6	East Rand Chess Year end Open 2024 (C)	2024-11-30	2024-11-30	Standard	Ekurhuleni (GE)	5	3	1	Yes	Analysis
7	Kempton Park Cluster Individuals 2024 (U13 Boys)	2024-03-02	2024-03-02	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Ekurhuleni Trials 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-06-07	rnd 2	type Rapid	result 0.5
		Opponent Dankaert, A (Alexis)				Opponent Mpe, O (Ofentse)
2	4	Tournament Kemptonpark School Cluster 2025				Tournament Ekurhuleni Trial 2 2025
		date 2025-06-07	rnd 5	type Rapid	result 1	date 2025-06-21	rnd 3	type Standard	result 0.5
		Opponent Ledwaba, O (Otshepeng)				Opponent Devereux, C (Cayden)
3	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Sebake, R (Rametsi)				Opponent Ngcongolo, T (Thamsanqa)

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trial 2 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-06-21	rnd 3	type Standard	result 0.5
		Opponent Dankaert, A (Alexis)				Opponent Devereux, C (Cayden)
2	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 4	type Standard	result 1	date 2025-07-26	rnd 4	type Standard	result 1
		Opponent Motseki, R (Reabetswe)				Opponent Motseki, R (Reabetswe)
3	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Lynch, B (Blake)				Opponent Lynch, B (Blake)

#	Games	Start				End
1	3	Tournament Kempton Park Cluster Individuals 2024				Tournament Kemptonpark School Cluster 2025
		date 2024-03-02	rnd 5	type Rapid	result 1	date 2025-06-07	rnd 2	type Rapid	result 0.5
		Opponent Chigume, T (Tapashe)				Opponent Mpe, O (Ofentse)
2	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Sebake, R (Rametsi)				Opponent Ngcongolo, T (Thamsanqa)
3	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 5	type Rapid	result 1	date 2025-06-07	rnd 5	type Rapid	result 1
		Opponent Ledwaba, O (Otshepeng)				Opponent Ledwaba, O (Otshepeng)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Kemptonpark School Cluster 2025				Tournament Ekurhuleni Trial 2 2025
		date 2025-06-07	rnd 5	type Rapid	result 1	date 2025-06-21	rnd 1	type Standard	result 1
		Opponent Ledwaba, O (Otshepeng)				Opponent Buthelezi, Z (Zanokuhle)
2	2	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Dankaert, A (Alexis)				Opponent Ngqweqwe, S (Sanele)
3	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Sebake, R (Rametsi)				Opponent Ngcongolo, T (Thamsanqa)

#	Games	Start				End
1	2	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Dankaert, A (Alexis)				Opponent Ngqweqwe, S (Sanele)
2	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 4	type Standard	result 1	date 2025-07-26	rnd 4	type Standard	result 1
		Opponent Motseki, R (Reabetswe)				Opponent Motseki, R (Reabetswe)
3	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Lynch, B (Blake)				Opponent Lynch, B (Blake)

#	Games	Start				End
1	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Kemptonpark School Cluster 2025
		date 2024-03-02	rnd 5	type Rapid	result 1	date 2025-06-07	rnd 1	type Rapid	result 1
		Opponent Chigume, T (Tapashe)				Opponent Molekwa, M (Motheo)
2	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Sebake, R (Rametsi)				Opponent Ngcongolo, T (Thamsanqa)
3	1	Tournament Kemptonpark School Cluster 2025				Tournament Kemptonpark School Cluster 2025
		date 2025-06-07	rnd 5	type Rapid	result 1	date 2025-06-07	rnd 5	type Rapid	result 1
		Opponent Ledwaba, O (Otshepeng)				Opponent Ledwaba, O (Otshepeng)

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	Buthelezi ,Z (Zanokuhle)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Buthelezi ,Z (Zanokuhle)	3	1315.4	1457.1	3	1316.7	1457.1	0	0	0	0	0	0
2	Ngcongolo ,T (Thamsanqa)	3	2	141.7	2	1	0	1	1	425	0	0	0
2	Ngcongolo ,T (Thamsanqa)	3	1307.4	1449.1	2	1350	1307.4	1	1200	1732.4	0	0	0
3	Shen Yu ,C (Caroline)	2	2	425	2	2	425	0	0	0	0	0	0
3	Shen Yu ,C (Caroline)	2	1278.3	1703.3	2	1260.7	1703.3	0	0	0	0	0	0
4	Sedibe ,T (Thato)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Sedibe ,T (Thato)	2	1425.4	1000.4	2	1445.2	1000.4	0	0	0	0	0	0
5	Devereux ,C (Cayden)	2	1	0	2	1	0	0	0	0	0	0	0
5	Devereux ,C (Cayden)	2	1281.4	1281.4	2	1269.2	1281.4	0	0	0	0	0	0
6	Nengovhela ,M (Manakela)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Nengovhela ,M (Manakela)	2	1444.2	1019.2	1	1543.5	1019.2	1	1200	1019.2	0	0	0
7	Motseki ,R (Reabetswe)	1	1	425	1	1	425	0	0	0	0	0	0
7	Motseki ,R (Reabetswe)	1	1200.9	1625.9	1	1200.8	1625.9	0	0	0	0	0	0
8	Mendonca ,N (Nelita)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mendonca ,N (Nelita)	1	1360.6	935.6	1	1358.3	935.6	0	0	0	0	0	0
9	Ngqweqwe ,S (Sanele)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ngqweqwe ,S (Sanele)	1	1005.3	1430.3	1	986.5	1430.3	0	0	0	0	0	0
10	Sadalla ,J (Johnny)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Sadalla ,J (Johnny)	1	1380.9	955.9	1	1413	955.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Nel, Z (Zachery)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms