Chess South Africa Ratings Database

PLAYER PAGE

Personal

Stone, D (Damian)

Chess SA id

1110144428

FIDE id

Date of birth

2011-12-29 (U16)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1294.3	1281.4	1263	1200
Raw rating	1294.3	1281.4	1263	1200
Weighted rating	1284.5	1266.9	1259.8	1200
Weighted performance	1145.6	1088.8	0	0
Floor	794.3	781.4	763	700
K-factor	36	36	36	36
Min/Max rating change allowed	145	147.7	151.6	165.8
Highest rating	1466.9 2022-08-01	1461.4 2022-08-01	1495.7 2024-03-01	1200 2018-10-01
Highest raw rating	1294.3 2025-06-01	1281.4 2025-06-01	1263 2024-04-01	1200 2024-02-01
Highest weighted rating	1280.8 2025-08-01	1262.9 2025-08-01	1257.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1466.9 2022-08-01	1461.4 2022-08-01	1495.7 2024-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1294.3	1281.4	1263	1200
Analysis
Rating	1294.3	1281.4	1263	1200
Raw rating	1294.3	1281.4	1263	1200
Weighted rating	1284.5	1266.9	1259.8
Weighted performance	1145.6	1088.8	0
K-factor	36	36	36	36
Floor	794.3	781.4	763	700
Max/Min rating change allowed	145	147.7	151.6	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	1294.3	1281.4	1263	1200
New weighted rating	1286	1268.7	1260.9	1200
New weighted performance	1145.1	1088.3	0	0
Temp new rating	1294.3	1281.4	1263	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1294.3	1281.4	1263	1200
New K-factor	36	36	36	36
New floor	794.3	781.4	763	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	10	5	5
	10	10	0
	6	6	0
	0	0	0
History	31	26	5

Games since
	Main 15	Standard 10		Rapid 5		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	5	3	60	85	1239.1	1324.1
Standard	5	3	60	85	1239.1	1324.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	19	61.29	96	1234	1329.9
Standard	26	15	57.69	65.4	1232.8	1298.2
Rapid	5	4	80	255	1240	1495
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1294.3	1281.4	1263	1200
2025-09-01	1294.3	1281.4	1263	1200
2025-08-01	1294.3	1281.4	1263	1200
2025-07-01	1294.3	1281.4	1263	1200
2025-06-01	1294.3	1281.4	1263	1200
2025-05-01	1286.3	1266.6	1263	1200
2025-04-01	1286.3	1266.6	1263	1200
2025-03-01	1286.3	1266.6	1263	1200
2025-02-01	1286.3	1266.6	1263	1200
2025-01-01	1286.3	1266.6	1263	1200
2024-12-01	1286.3	1266.6	1263	1200
2024-11-01	1286.3	1266.6	1263	1200
2024-10-01	1286.3	1266.6	1263	1200
2024-09-01	1272.3	1243.2	1263	1200
2024-08-01	1272.3	1243.2	1263	1200
2024-07-01	1272.3	1243.2	1263	1200
2024-06-01	1272.3	1243.2	1263	1200
2024-08-01	1272.3	1243.2	1263	1200
2024-04-01	1272.3	1243.2	1263	1200
2024-03-01	1238.8	1243.2	1200	1200
2024-02-01	1238.8	1243.2	1200	1200
2024-01-01	1238.8	1243.2	1200	1200
2023-12-01	1238.8	1243.2	1200	1200
2023-11-01	1238.8	1243.2	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	Benoni High School Cluster 2025 (U15)	2025-05-10	2025-05-10	Standard	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	Benoni High School Cluster 2025 (U15)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Ekurhuleni North Schools Finals - Teams 2024 (U13 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
3	Benoni Primary School Cluster Individuals 2024 (U13 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
4	2023 Ekurhuleni North District Schools Finals (U13)	2023-07-29	2023-07-29	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
5	Ekurhuleni North Schools Individual Finals 2023 (U13 Boys)	2023-05-12	2023-05-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Ekurhuleni-North Schools Teams 2022 (U13)	2022-08-06	2022-08-06	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	Ekurhuleni-North Schools Teams 2022 (U13 Reserves)	2022-08-06	2022-08-06	Standard	Ekurhuleni (GE)	5	1	1	Yes	Analysis

#	Games	Start				End
1	4	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 4	type Rapid	result 1
		Opponent Herbst, W (Wihan)				Opponent Subroyan, I (Immanuel)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Benoni High School Cluster 2025
		date 2024-08-03	rnd 4	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Mashego, T (Tsepiso)				Opponent Smit, C (Chrizelle)
3	3	Tournament 2023 Ekurhuleni North District Schools Finals				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Kraai, I (Iviwe)				Opponent Emmanuel, J (Joshua)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Benoni High School Cluster 2025
		date 2024-08-03	rnd 4	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Mashego, T (Tsepiso)				Opponent Smit, C (Chrizelle)
2	3	Tournament 2023 Ekurhuleni North District Schools Finals				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Kraai, I (Iviwe)				Opponent Emmanuel, J (Joshua)
3	3	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Ekurhuleni-North Schools Teams 2022
		date 2022-08-06	rnd 1	type Standard	result 1	date 2022-08-06	rnd 2	type Standard	result 1
		Opponent Mwanda, A (Akhule Anikwa)				Opponent Niebuhr, F (Franco)

#	Games	Start				End
1	4	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 4	type Rapid	result 1
		Opponent Herbst, W (Wihan)				Opponent Subroyan, I (Immanuel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	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 4	type Rapid	result 1
		Opponent Herbst, W (Wihan)				Opponent Subroyan, I (Immanuel)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Benoni High School Cluster 2025
		date 2024-08-03	rnd 4	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Mashego, T (Tsepiso)				Opponent Smit, C (Chrizelle)
3	3	Tournament 2023 Ekurhuleni North District Schools Finals				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Kraai, I (Iviwe)				Opponent Emmanuel, J (Joshua)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Benoni High School Cluster 2025
		date 2024-08-03	rnd 4	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Mashego, T (Tsepiso)				Opponent Smit, C (Chrizelle)
2	3	Tournament 2023 Ekurhuleni North District Schools Finals				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-07-29	rnd 4	type Standard	result 1
		Opponent Kraai, I (Iviwe)				Opponent Emmanuel, J (Joshua)
3	3	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Ekurhuleni-North Schools Teams 2022
		date 2022-08-06	rnd 1	type Standard	result 1	date 2022-08-06	rnd 2	type Standard	result 1
		Opponent Mwanda, A (Akhule Anikwa)				Opponent Niebuhr, F (Franco)

#	Games	Start				End
1	4	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 4	type Rapid	result 1
		Opponent Herbst, W (Wihan)				Opponent Subroyan, I (Immanuel)

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	Smith ,H (Henre)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Smith ,H (Henre)	2	1280.2	855.2	2	1248.8	855.2	0	0	0	0	0	0
2	Botha ,CA (Cathri Amari)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Botha ,CA (Cathri Amari)	2	1459.8	1034.8	2	1451.9	1034.8	0	0	0	0	0	0
3	Niebuhr ,F (Franco)	1	1	425	1	1	425	0	0	0	0	0	0
3	Niebuhr ,F (Franco)	1	1088.9	1513.9	1	1058.8	1513.9	0	0	0	0	0	0
4	Mkhize ,N (Nomcebo Nobuhle)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mkhize ,N (Nomcebo Nobuhle)	1	1185.4	1610.4	1	1181.2	1610.4	0	0	0	0	0	0
5	Holtzhausen ,D (Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
5	Holtzhausen ,D (Daniel)	1	1130	1555	1	1129.2	1555	0	0	0	0	0	0
6	Breytenbach ,D (Dewald)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Breytenbach ,D (Dewald)	1	1293.8	868.8	1	1304.8	868.8	0	0	0	0	0	0
7	Maleku ,E (Esethu)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Maleku ,E (Esethu)	1	1355	930	1	1349.6	930	0	0	0	0	0	0
8	Joubert ,D (Dawid)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Joubert ,D (Dawid)	1	1281	856	1	1302.8	856	0	0	0	0	0	0
9	Kubjana ,L (Lethabo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Kubjana ,L (Lethabo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Pillay ,L (Lushen)	1	1	425	1	1	425	0	0	0	0	0	0
10	Pillay ,L (Lushen)	1	1085.1	1510.1	1	1064.4	1510.1	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

Stone, D (Damian)

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