Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nero, D (Dornay)

Chess SA id

1090308069

FIDE id

Date of birth

2009-10-23 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1187	1194	1189.9	1200
Raw rating	1164.2	1162	1189.9	1200
Weighted rating	1187	1194	1188.5	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.5	175	168.2	165.8
Highest rating	1200 2024-07-01	1200 2024-10-01	1200 2024-07-01	1200 2024-10-01
Highest raw rating	1200 2024-07-01	1200 2024-10-01	1200 2024-07-01	1200 2024-10-01
Highest weighted rating	1200 2024-07-01	1200 2024-10-01	1200 2024-07-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-10-01	1200 2024-12-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.1	-2.8	0	0
New rating	1184.9	1191.3	1189.9	1200
Analysis
Rating	1187	1194	1189.9	1200
Raw rating	1164.2	1162	1189.9	1200
Weighted rating	1187	1194	1188.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	174.5	175	168.2	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	1164.2	1162	1189.9	1200
New weighted rating	1184.9	1191.3	1188.5	1200
New weighted performance	0	0	0	0
Temp new rating	1184.9	1191.3	1189.9	1200
Temp new rating +/-	-2.1	-2.8	0	0
Final new rating +/-	-2.1	-2.8	0	0
New rating	1184.9	1191.3	1189.9	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

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

Games since
	Main 9	Standard 4		Rapid 5		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	4	1	25	-212.5	1221.9	1009.4
Standard	4	1	25	-212.5	1221.9	1009.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	3	33.33	-141.7	1197	1055.3
Standard	4	1	25	-212.5	1221.9	1009.4
Rapid	5	2	40	-85	1177	1092
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1164.2	1162	1189.9	1200
2025-09-01	1164.2	1162	1189.9	1200
2025-08-01	1192.5	1200	1189.9	1200
2025-07-01	1192.5	1200	1189.9	1200
2025-06-01	1192.5	1200	1189.9	1200
2025-05-01	1192.5	1200	1189.9	1200
2025-04-01	1192.5	1200	1189.9	1200
2025-03-01	1192.5	1200	1189.9	1200
2025-02-01	1192.1	1200	1189.4	1200
2025-01-01	1183.9	1200	1178.4	1200
2024-12-01	1183.9	1200	1178.4	1200
2024-11-01	1183.9	1200	1178.4	1200
2024-10-01	1183.9	1200	1178.4	1200
2024-09-01	1183.9	1200	1178.4	1200
2024-08-01	1183.9	1200	1178.4	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	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	Cape Town Metro North Top Schools 2025 (U19)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Metro North Top Schools 2025 (U19)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
2	CT District North Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tyabazeka, L (Lisemi)				Opponent Tyabazeka, L (Lisemi)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Basa, L (Lutho)				Opponent Basa, L (Lutho)
3	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Mgumbi, T (Tanatswa)				Opponent Mgumbi, T (Tanatswa)

#	Games	Start				End
1	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tyabazeka, L (Lisemi)				Opponent Tyabazeka, L (Lisemi)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Basa, L (Lutho)				Opponent Basa, L (Lutho)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Mgumbi, T (Tanatswa)				Opponent Mgumbi, T (Tanatswa)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tyabazeka, L (Lisemi)				Opponent Tyabazeka, L (Lisemi)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Basa, L (Lutho)				Opponent Basa, L (Lutho)
3	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Mgumbi, T (Tanatswa)				Opponent Mgumbi, T (Tanatswa)

#	Games	Start				End
1	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tyabazeka, L (Lisemi)				Opponent Tyabazeka, L (Lisemi)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Basa, L (Lutho)				Opponent Basa, L (Lutho)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Mgumbi, T (Tanatswa)				Opponent Mgumbi, T (Tanatswa)

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	Tyabazeka ,L (Lisemi)	1	1	425	1	1	425	0	0	0	0	0	0
1	Tyabazeka ,L (Lisemi)	1	1175.9	1600.9	1	1168.8	1600.9	0	0	0	0	0	0
2	Vermeulen ,I (Inge)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Vermeulen ,I (Inge)	1	1306.3	881.3	1	1315.7	881.3	0	0	0	0	0	0
3	Ma ,C (Chengyan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Ma ,C (Chengyan)	1	1031.3	606.3	1	944.9	606.3	0	0	0	0	0	0
4	Sihamba ,S (Somila)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Sihamba ,S (Somila)	1	1374.3	949.3	1	1393.8	949.3	0	0	0	0	0	0
5	Mgumbi ,T (Tanatswa)	1	1	425	0	0	0	1	1	425	0	0	0
5	Mgumbi ,T (Tanatswa)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Van Der Westhuizen ,A (Anru)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Van Der Westhuizen ,A (Anru)	1	1141.9	716.9	0	0	0	1	1200	716.9	0	0	0
7	Arluck ,M (Matthew)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Arluck ,M (Matthew)	1	1143.2	718.2	0	0	0	1	1200	718.2	0	0	0
8	Basa ,L (Lutho)	1	1	425	0	0	0	1	1	425	0	0	0
8	Basa ,L (Lutho)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Van Staden ,C (Cadin)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Van Staden ,C (Cadin)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Nero, D (Dornay)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms