Chess South Africa Ratings Database

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Personal

Hartnick, D (Dewin)

Chess SA id

1130150697

FIDE id

Date of birth

2013-08-23 (U14)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1235.1	1219.6	1238.4	1190.7
Raw rating	1235.1	1219.6	1238.4	1190.7
Weighted rating	1234.8	1219.6	1238.4	1189.3
Weighted performance	0	0	0	0
Floor	736.8	719.6	738.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.7	161.2	157	168
Highest rating	1298.9 2023-03-01	1286.6 2023-03-01	1370.5 2023-03-01	1200 2018-10-01
Highest raw rating	1236.8 2024-03-01	1219.6 2024-03-01	1238.4 2024-03-01	1200 2024-03-01
Highest weighted rating	1236.8 2024-10-01	1219.6 2025-02-01	1238.4 2025-02-01	1200 2018-10-01
Highest weighted performance	1298.9 2023-03-01	1286.6 2023-03-01	1370.5 2023-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1235.1	1219.6	1238.4	1190.7
Analysis
Rating	1235.1	1219.6	1238.4	1190.7
Raw rating	1235.1	1219.6	1238.4	1190.7
Weighted rating	1234.8	1219.6	1238.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	736.8	719.6	738.4	700
Max/Min rating change allowed	157.7	161.2	157	168
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	1235.1	1219.6	1238.4	1190.7
New weighted rating	1234.8	1219.6	1238.4	1189.2
New weighted performance	0	0	0	0
Temp new rating	1235.1	1219.6	1238.4	1190.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1235.1	1219.6	1238.4	1190.7
New K-factor	36	36	36	36
New floor	736.8	719.6	738.4	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	4	0	0	4
	10	5	5	0
	0	0	0	0
	0	0	0	0
History	14	5	5	4

Games since
	Main 4	Standard 0		Rapid 0		Blitz 4
Gender	Male
Age group	U14
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	14	7.5	53.57	30.4	1211.6	1241.9
Standard	5	3	60	85	1197.3	1282.3
Rapid	5	3.5	70	170	1209.5	1379.5
Blitz	4	1	25	-212.5	1232	1019.5

Date	Main	Standard	Rapid	Blitz
2025-09-30	1235.1	1219.6	1238.4	1190.7
2025-09-01	1235.1	1219.6	1238.4	1190.7
2025-08-01	1235.1	1219.6	1238.4	1190.7
2025-07-01	1235.1	1219.6	1238.4	1190.7
2025-06-01	1235.1	1219.6	1238.4	1190.7
2025-05-01	1235.1	1219.6	1238.4	1190.7
2025-04-01	1235.1	1219.6	1238.4	1190.7
2025-03-01	1235.1	1219.6	1238.4	1190.7
2025-02-01	1234.8	1219.6	1238.4	1189.2
2025-01-01	1230.2	1219.6	1238.4	1164
2024-12-01	1230.2	1219.6	1238.4	1164
2024-11-01	1230.2	1219.6	1238.4	1164
2024-10-01	1236.8	1219.6	1238.4	1200
2024-09-01	1236.8	1219.6	1238.4	1200
2024-08-01	1236.8	1219.6	1238.4	1200
2024-07-01	1236.8	1219.6	1238.4	1200
2024-06-01	1236.8	1219.6	1238.4	1200
2024-08-01	1236.8	1219.6	1238.4	1200
2024-04-01	1236.8	1219.6	1238.4	1200
2024-03-01	1236.8	1219.6	1238.4	1200
2024-02-01	1236.8	1219.6	1238.4	1200
2024-01-01	1236.8	1219.6	1238.4	1200
2023-12-01	1236.8	1219.6	1238.4	1200
2023-11-01	1236.8	1219.6	1238.4	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 Top Schools 2025 (U13)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	0	0	No	Analysis
2	Overberg Schools - PS Closed 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	0	0	No	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Top Schools 2025 (U13)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	0	0	No	Analysis
2	Overberg Schools - PS Closed 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	0	0	No	Analysis
3	Overberg October Chess Festival 2024 (B)	2024-10-17	2024-10-17	Blitz	Overberg (WOS)	5	4	1	Yes	Analysis
4	Overberg Schools Swellendam Zone Trails 2023 (U13)	2023-02-16	2023-03-02	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
5	Overberg School Chess Closed Tournament 2023 (U11 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-02	rnd 4	type Rapid	result 0.5
		Opponent Matjan, C (Calum)				Opponent Jonas, N (Nathan)
2	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Van Rooyen, J (Janco)				Opponent Van Riet, M (Martin)
3	1	Tournament Overberg October Chess Festival 2024				Tournament Overberg October Chess Festival 2024
		date 2024-10-17	rnd 1	type Blitz	result 1	date 2024-10-17	rnd 1	type Blitz	result 1
		Opponent Arendse, J (Jo-Keithin)				Opponent Arendse, J (Jo-Keithin)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Van Rooyen, J (Janco)				Opponent Van Riet, M (Martin)
2	1	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 4	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Henning, N (Nicolas)				Opponent Henning, N (Nicolas)

#	Games	Start				End
1	4	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-02	rnd 4	type Rapid	result 0.5
		Opponent Matjan, C (Calum)				Opponent Jonas, N (Nathan)

#	Games	Start				End
1	1	Tournament Overberg October Chess Festival 2024				Tournament Overberg October Chess Festival 2024
		date 2024-10-17	rnd 1	type Blitz	result 1	date 2024-10-17	rnd 1	type Blitz	result 1
		Opponent Arendse, J (Jo-Keithin)				Opponent Arendse, J (Jo-Keithin)

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Matjan, C (Calum)				Opponent Kemp, K (Keathan)
2	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Van Rooyen, J (Janco)				Opponent Van Riet, M (Martin)
3	1	Tournament Overberg October Chess Festival 2024				Tournament Overberg October Chess Festival 2024
		date 2024-10-17	rnd 1	type Blitz	result 1	date 2024-10-17	rnd 1	type Blitz	result 1
		Opponent Arendse, J (Jo-Keithin)				Opponent Arendse, J (Jo-Keithin)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Van Rooyen, J (Janco)				Opponent Van Riet, M (Martin)
2	1	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 4	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Henning, N (Nicolas)				Opponent Henning, N (Nicolas)

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Matjan, C (Calum)				Opponent Kemp, K (Keathan)

#	Games	Start				End
1	1	Tournament Overberg October Chess Festival 2024				Tournament Overberg October Chess Festival 2024
		date 2024-10-17	rnd 1	type Blitz	result 1	date 2024-10-17	rnd 1	type Blitz	result 1
		Opponent Arendse, J (Jo-Keithin)				Opponent Arendse, J (Jo-Keithin)

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	Bernardus ,C (Chadwin)	2	0	-425	1	0	-425	0	0	0	1	0	-425
1	Bernardus ,C (Chadwin)	2	1224.6	799.6	1	1200	799.6	0	0	0	1	1200	799.6
2	Van Rooyen ,J (Janco)	1	1	425	1	1	425	0	0	0	0	0	0
2	Van Rooyen ,J (Janco)	1	1161.5	1586.5	1	1152.4	1586.5	0	0	0	0	0	0
3	Knapp ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Knapp ,L (Liam)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Henning ,N (Nicolas)	1	1	425	1	1	425	0	0	0	0	0	0
4	Henning ,N (Nicolas)	1	1226.3	1651.3	1	1202.9	1651.3	0	0	0	0	0	0
5	Van Riet ,M (Martin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Riet ,M (Martin)	1	1198.5	1623.5	1	1200	1623.5	0	0	0	0	0	0
6	Jonas ,N (Nathan)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
6	Jonas ,N (Nathan)	1	1215.6	1215.6	0	0	0	1	1200	1215.6	0	0	0
7	Benardus ,C (Chadwin)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Benardus ,C (Chadwin)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Kemp ,K (Keathan)	1	1	425	0	0	0	1	1	425	0	0	0
8	Kemp ,K (Keathan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Lombaard ,Z (Zaywin)	1	1	425	0	0	0	1	1	425	0	0	0
9	Lombaard ,Z (Zaywin)	1	1231.9	1656.9	0	0	0	1	1200	1656.9	0	0	0
10	Matjan ,C (Calum)	1	1	425	0	0	0	1	1	425	0	0	0
10	Matjan ,C (Calum)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Hartnick, D (Dewin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms