Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Waal, D (Dian)

Chess SA id

1140141559

FIDE id

Date of birth

2014-03-12 (U12)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1334.9

Item	Main	Standard	Rapid	Blitz
Rating	1376.5	1372.8	1200	1200
Raw rating	1376.5	1364.7	1200	1200
Weighted rating	1371.9	1372.8	1200	1200
Weighted performance	1314.3	1314.2	0	0
Floor	927.5	924.9	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	128.9	131.1	165.8	165.8
Highest rating	1427.5 2025-07-01	1474.1 2023-07-01	1211.1 2022-05-01	1200 2018-10-01
Highest raw rating	1427.5 2025-07-01	1424.9 2025-07-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1371.9 2025-11-01	1372.8 2025-11-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1427.5 2025-07-01	1474.1 2023-07-01	1211.1 2022-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.8	0	0
New rating	1376.5	1373.6	1200	1200
Analysis
Rating	1376.5	1372.8	1200	1200
Raw rating	1376.5	1364.7	1200	1200
Weighted rating	1371.9	1372.8	1200
Weighted performance	1314.3	1314.2	0
K-factor	32	32	36	36
Floor	927.5	924.9	700	700
Max/Min rating change allowed	128.9	131.1	165.8	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	1376.5	1364.7	1200	1200
New weighted rating	1374.1	1373.6	1200	1200
New weighted performance	1306.4	1306.3	0	0
Temp new rating	1376.5	1373.6	1200	1200
Temp new rating +/-	0	0.8	0	0
Final new rating +/-	0	0.8	0	0
New rating	1376.5	1373.6	1200	1200
New K-factor	32	32	36	36
New floor	927.5	924.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	35	35	0
	30	30	0
	11	11	0
	6	0	6
	0	0	0
History	82	76	6

Games since
	Main 65	Standard 65		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2427		851		69
Male	1960		678		54
U12	326		115		15
U12 Male	237		81		10
Standard
	RSA		Province		Region
Overall	2386		893		80
Male	1924		719		65
U12	318		120		15
U12 Male	234		85		10
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	35	22	62.86	109.3	1249.1	1358.4
Standard	35	22	62.86	109.3	1249.1	1358.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	82	52	63.41	114	1259	1373.1
Standard	76	49	64.47	123	1263.5	1386.5
Rapid	6	3	50	0	1202.9	1202.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1376.5	1364.7	1200	1200
2025-09-30	1415	1409.5	1200	1200
2025-09-01	1427.5	1424.9	1200	1200
2025-08-01	1427.5	1424.9	1200	1200
2025-07-01	1427.5	1424.9	1200	1200
2025-06-01	1384.4	1386.7	1200	1200
2025-05-01	1371.5	1371.3	1200	1200
2025-04-01	1344.7	1338.1	1200	1200
2025-03-01	1354.3	1348.5	1200	1200
2025-02-01	1388	1391.4	1200	1200
2025-01-01	1388	1391.4	1200	1200
2024-12-01	1335.8	1342.8	1200	1200
2024-11-01	1335.8	1342.8	1200	1200
2024-10-01	1328.9	1336.7	1200	1200
2024-09-01	1320.8	1330.6	1200	1200
2024-08-01	1320.8	1330.6	1200	1200
2024-07-01	1320.8	1330.6	1200	1200
2024-09-01	1320.8	1330.6	1200	1200
2024-05-01	1308.7	1322	1200	1200
2024-04-01	1308.7	1322	1200	1200
2024-03-01	1302.4	1318.8	1200	1200
2024-02-01	1292.5	1312	1200	1200
2024-01-01	1292.5	1312	1200	1200
2023-12-01	1292.5	1312	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	West Rand Closed 2025 (U12)	2025-10-18	2025-10-18	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
2	West Rand Trials 2025 (U12)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
3	West Rand Open 2.0 2025 (U12)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
4	2025 D2 Schools Individuals (U11 Open)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	FIDE in The West 2025 (U12)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
6	West Rand Juniors 2025 (U12)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
7	2025 West Rand Open (U12)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	West Rand Closed 2025 (U12)	2025-10-18	2025-10-18	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
2	West Rand Trials 2025 (U12)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
3	West Rand Open 2.0 2025 (U12)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
4	2025 D2 Schools Individuals (U11 Open)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	FIDE in The West 2025 (U12)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
6	West Rand Juniors 2025 (U12)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
7	2025 West Rand Open (U12)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
8	Gauteng Inter-Region at UJ 2024 (U12 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
9	2024 West Rand Closed (U12)	2024-10-12	2024-10-12	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
10	2024 West Rand Trials (U12)	2024-09-07	2024-09-07	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
11	2024 D2 Schools Individuals (U11 Boys)	2024-05-04	2024-05-04	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
12	2024 West Rand Juniors (U12)	2024-03-09	2024-03-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
13	2024 West Rand Open (U12)	2024-02-03	2024-02-03	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
14	D2 School League Finals 2023 (U9)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	7	6	5	Yes	Analysis
15	D2 Schools Individuals 2023 (U9 Boys+Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
16	RMS Swiss For Rating of Players 2022 (U9)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 West Rand Open
		date 2023-07-22	rnd 2	type Standard	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Kamffer, J (John-Andrew)				Opponent Lekgoba, R (Rethabile Ellen)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Van Wyk, N (Nihann)				Opponent Magalela, P (Paballo Siphiwe)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 West Rand Open
		date 2024-12-07	rnd 2	type Standard	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Le Roux, M (Meiring)				Opponent Davids, C (Cathrien)

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 West Rand Open
		date 2023-07-22	rnd 2	type Standard	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Kamffer, J (John-Andrew)				Opponent Lekgoba, R (Rethabile Ellen)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Van Wyk, N (Nihann)				Opponent Magalela, P (Paballo Siphiwe)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 West Rand Open
		date 2024-12-07	rnd 2	type Standard	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Le Roux, M (Meiring)				Opponent Davids, C (Cathrien)

#	Games	Start				End
1	2	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2022-05-28	rnd 3	type Rapid	result 1
		Opponent Jordaan, M (Mikijl)				Opponent Van Heerden, H (Hans Jacob)
2	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 7	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Masalesa, H (Hendrick)				Opponent Masalesa, H (Hendrick)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 West Rand Open
		date 2023-07-22	rnd 2	type Standard	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Kamffer, J (John-Andrew)				Opponent Lekgoba, R (Rethabile Ellen)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Van Wyk, N (Nihann)				Opponent Magalela, P (Paballo Siphiwe)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 West Rand Open
		date 2024-12-07	rnd 2	type Standard	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Le Roux, M (Meiring)				Opponent Davids, C (Cathrien)

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 West Rand Open
		date 2023-07-22	rnd 2	type Standard	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Kamffer, J (John-Andrew)				Opponent Lekgoba, R (Rethabile Ellen)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Van Wyk, N (Nihann)				Opponent Magalela, P (Paballo Siphiwe)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 West Rand Open
		date 2024-12-07	rnd 2	type Standard	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Le Roux, M (Meiring)				Opponent Davids, C (Cathrien)

#	Games	Start				End
1	2	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 1	type Rapid	result 1	date 2022-05-28	rnd 3	type Rapid	result 1
		Opponent Jordaan, M (Mikijl)				Opponent Van Heerden, H (Hans Jacob)
2	1	Tournament RMS Swiss For Rating of Players 2022				Tournament RMS Swiss For Rating of Players 2022
		date 2022-05-28	rnd 7	type Rapid	result 1	date 2022-05-28	rnd 7	type Rapid	result 1
		Opponent Masalesa, H (Hendrick)				Opponent Masalesa, H (Hendrick)

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	Magagula ,N (Nkosingiphile)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Magagula ,N (Nkosingiphile)	3	1476.9	1335.2	3	1470.6	1335.2	0	0	0	0	0	0
2	Green ,M (Matthew)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Green ,M (Matthew)	3	1198.4	1481.7	3	1196.8	1481.7	0	0	0	0	0	0
3	Van Wyk ,N (Nihann)	3	3	425	3	3	425	0	0	0	0	0	0
3	Van Wyk ,N (Nihann)	3	1195.2	1620.2	3	1194.7	1620.2	0	0	0	0	0	0
4	Human ,D (Dunay)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Human ,D (Dunay)	3	1162.3	1304	3	1160.2	1304	0	0	0	0	0	0
5	Van Rensburg ,L (Liem)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Van Rensburg ,L (Liem)	2	1263.5	838.5	2	1260.8	838.5	0	0	0	0	0	0
6	Kamffer ,J (John-Andrew)	2	1	0	2	1	0	0	0	0	0	0	0
6	Kamffer ,J (John-Andrew)	2	1335.5	1335.5	2	1342.4	1335.5	0	0	0	0	0	0
7	Laubscher ,D (Declan)	2	2	425	2	2	425	0	0	0	0	0	0
7	Laubscher ,D (Declan)	2	1213.4	1638.4	2	1210.4	1638.4	0	0	0	0	0	0
8	Arlow ,J (Jaden)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Arlow ,J (Jaden)	2	1357.4	932.4	2	1347.3	932.4	0	0	0	0	0	0
9	Willemse ,H (Hans)	2	2	425	2	2	425	0	0	0	0	0	0
9	Willemse ,H (Hans)	2	1225.6	1650.6	2	1224.2	1650.6	0	0	0	0	0	0
10	Mokaila ,L (Lesedi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mokaila ,L (Lesedi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

De Waal, D (Dian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms