Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nel, Z (Zybrand)

Chess SA id

1110130191

FIDE id

Date of birth

2011-01-01 (U16)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

18.6

Junior GPX Points

985.5

Item	Main	Standard	Rapid	Blitz
Rating	1182.4	1202.5	1160	1200
Raw rating	1115.2	1202.5	1039.8	1200
Weighted rating	1182.4	1201.2	1160	1200
Weighted performance	992.4	0	963.8	0
Floor	705	702.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	187.1	165.2	208.3	165.8
Highest rating	1205 2025-04-01	1202.5 2025-04-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1205 2025-04-01	1202.5 2025-04-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1205 2018-10-01	1200.9 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-5.4	0	-9.7	0
New rating	1177	1202.5	1150.2	1200
Analysis
Rating	1182.4	1202.5	1160	1200
Raw rating	1115.2	1202.5	1039.8	1200
Weighted rating	1182.4	1201.2	1160
Weighted performance	992.4	0	963.8
K-factor	36	36	36	36
Floor	705	702.5	700	700
Max/Min rating change allowed	187.1	165.2	208.3	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	1115.2	1202.5	1039.8	1200
New weighted rating	1177	1201.4	1150.2	1200
New weighted performance	992.1	0	963.4	0
Temp new rating	1177	1202.5	1150.2	1200
Temp new rating +/-	-5.4	0	-9.7	0
Final new rating +/-	-5.4	0	-9.7	0
New rating	1177	1202.5	1150.2	1200
New K-factor	36	36	36	36
New floor	705	702.5	700	700

Item	Main	Standard	Rapid
	0	0	0
	34	5	29
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	38	5	33

Games since
	Main 34	Standard 5		Rapid 29		Blitz 0
Gender	Male
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
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	1790		908		139
Male	1351		665		88
U16	296		152		25
U16 Male	223		109		13
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	34	11	32.35	-150	1246.5	1096.5
Standard	5	2	40	-85	1329.1	1244.1
Rapid	29	9	31.03	-161.2	1232.3	1071.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	12	31.58	-156.6	1237.6	1081
Standard	5	2	40	-85	1329.1	1244.1
Rapid	33	10	30.3	-167.4	1223.7	1056.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1115.2	1202.5	1039.8	1200
2025-09-01	1149.2	1202.5	1100.2	1200
2025-08-01	1205	1202.5	1196.8	1200
2025-07-01	1205	1202.5	1196.8	1200
2025-06-01	1205	1202.5	1196.8	1200
2025-05-01	1205	1202.5	1196.8	1200
2025-04-01	1205	1202.5	1196.8	1200
2025-03-01	1196.1	1200	1196.8	1200
2025-02-01	1181.6	1200	1159.6	1200
2025-01-01	1181.6	1200	1159.6	1200
2024-12-01	1181.6	1200	1159.6	1200
2024-11-01	1181.6	1200	1159.6	1200
2024-10-01	1181.6	1200	1159.6	1200
2024-09-01	1181.6	1200	1159.6	1200
2024-08-01	1181.6	1200	1159.6	1200
2024-07-01	1181.6	1200	1159.6	1200
2024-06-01	1181.6	1200	1159.6	1200
2024-08-01	1181.6	1200	1159.6	1200
2024-04-01	1181.6	1200	1159.6	1200
2024-03-01	1181.6	1200	1159.6	1200
2024-02-01	1181.6	1200	1159.6	1200
2024-01-01	1181.6	1200	1159.6	1200
2023-12-01	1181.6	1200	1159.6	1200
2023-11-01	1181.6	1200	1159.6	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	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	5	0	Yes	Analysis
2	Kleinmond Chess Club Open 2025 (Advanced)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	0	Yes	Analysis
3	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
4	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
5	Curro Hermanus Summer Open 2025 (U15)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis
6	Overberg Schools & Federation Open 2025 (U15)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	5	0	Yes	Analysis
2	Kleinmond Chess Club Open 2025 (Advanced)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	0	Yes	Analysis
3	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
4	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
5	Curro Hermanus Summer Open 2025 (U15)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis
6	Overberg Schools & Federation Open 2025 (U15)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
7	OCF Open 2020 (U8+U10)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Omar, A (Abdullah)				Opponent Van Wyk, C (Cayllum)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Pretorius, R (Ruald)				Opponent Foye, L (Logan)
3	2	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 1
		Opponent van der Berg, N (Nesha)				Opponent Swart, E (Eon)

#	Games	Start				End
1	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Pekeur, A (Andrew)				Opponent Pekeur, A (Andrew)
2	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Van Wyk, C (Cayllum)				Opponent Van Wyk, C (Cayllum)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Omar, A (Abdullah)				Opponent Jiri, H (Howard)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Pretorius, R (Ruald)				Opponent Foye, L (Logan)
3	2	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 1
		Opponent van der Berg, N (Nesha)				Opponent Swart, E (Eon)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Omar, A (Abdullah)				Opponent Van Wyk, C (Cayllum)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Pretorius, R (Ruald)				Opponent Foye, L (Logan)
3	2	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 1
		Opponent van der Berg, N (Nesha)				Opponent Swart, E (Eon)

#	Games	Start				End
1	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Pekeur, A (Andrew)				Opponent Pekeur, A (Andrew)
2	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Van Wyk, C (Cayllum)				Opponent Van Wyk, C (Cayllum)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Omar, A (Abdullah)				Opponent Jiri, H (Howard)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Pretorius, R (Ruald)				Opponent Foye, L (Logan)
3	2	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 1
		Opponent van der Berg, N (Nesha)				Opponent Swart, E (Eon)

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	Van Der Merwe ,L (Luan Rudolf Johanne)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Van Der Merwe ,L (Luan Rudolf Johanne)	2	1106.1	1106.1	1	1122	681.1	1	1101.6	1531.1	0	0	0
2	Foye ,L (Logan)	2	1	0	0	0	0	2	1	0	0	0	0
2	Foye ,L (Logan)	2	1289.3	1289.3	0	0	0	2	1316.2	1289.3	0	0	0
3	Hendricks ,L (Lakeisha)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Hendricks ,L (Lakeisha)	2	1182.4	757.4	0	0	0	2	1261.9	757.4	0	0	0
4	Kiessling ,K (Kai)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kiessling ,K (Kai)	1	1414.6	989.6	1	1419.5	989.6	0	0	0	0	0	0
5	Du Plessis ,B (Bennie)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Du Plessis ,B (Bennie)	1	1276	851	0	0	0	1	1289	851	0	0	0
6	Buhr ,G (Gretchen)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Buhr ,G (Gretchen)	1	1326.3	901.3	0	0	0	1	1319.4	901.3	0	0	0
7	Karelse ,J (Jaywin)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Karelse ,J (Jaywin)	1	1215.6	790.6	0	0	0	1	1218.4	790.6	0	0	0
8	Oosthuizen ,J (Jacques)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Oosthuizen ,J (Jacques)	1	1120.4	695.4	0	0	0	1	1106.5	695.4	0	0	0
9	Bekker ,A (Armin)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Bekker ,A (Armin)	1	1225.3	800.3	0	0	0	1	1184.8	800.3	0	0	0
10	Rabe ,T (Tiaan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Rabe ,T (Tiaan)	1	1300	875	0	0	0	1	1300	875	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Nel, Z (Zybrand)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms