Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Plessis, J (Jan-Harm)

Chess SA id

1130320535

FIDE id

Date of birth

2013-08-29 (U14)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1230.6	1237.2	1200	1200
Raw rating	1230.6	1237.2	1200	1200
Weighted rating	1214	1217.1	1200	1200
Weighted performance	0	0	0	0
Floor	730.6	737.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.8	157.3	165.8	165.8
Highest rating	1230.6 2025-08-01	1237.2 2025-08-01	1200 2025-06-01	1200 2025-06-01
Highest raw rating	1230.6 2025-08-01	1237.2 2025-08-01	1200 2025-06-01	1200 2025-06-01
Highest weighted rating	1203.5 2025-08-01	1204.4 2025-08-01	1200 2025-06-01	1200 2025-06-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1230.6	1237.2	1200	1200
Analysis
Rating	1230.6	1237.2	1200	1200
Raw rating	1230.6	1237.2	1200	1200
Weighted rating	1214	1217.1	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	730.6	737.2	700	700
Max/Min rating change allowed	158.8	157.3	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	1230.6	1237.2	1200	1200
New weighted rating	1215.7	1219.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1230.6	1237.2	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1230.6	1237.2	1200	1200
New K-factor	36	36	36	36
New floor	730.6	737.2	700	700

Item	Main	Standard
	0	0
	10	10
	0	0
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	10	5.5	55	42.5	1239.2	1281.7
Standard	10	5.5	55	42.5	1239.2	1281.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	5.5	55	42.5	1239.2	1281.7
Standard	10	5.5	55	42.5	1239.2	1281.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1230.6	1237.2	1200	1200
2025-11-30	1230.6	1237.2	1200	1200
2025-11-01	1230.6	1237.2	1200	1200
2025-09-30	1230.6	1237.2	1200	1200
2025-09-01	1230.6	1237.2	1200	1200
2025-08-01	1230.6	1237.2	1200	1200
2025-07-01	1207	1209.3	1200	1200
2025-06-01	1207	1209.3	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	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

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U13 Open)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U13 Open)	2025-05-10	2025-05-10	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Mashishi, A (Aoretwe-Kgalalelo Leeu)				Opponent Viljoen, A (Alexander)
2	2	Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5				Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 0.5
		Opponent Mashaba, M (Mvuzo)				Opponent Day, A (Ayden)
3	1	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Van Rooyen, D (Daniel)				Opponent Van Rooyen, D (Daniel)

#	Games	Start				End
1	2	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Mashishi, A (Aoretwe-Kgalalelo Leeu)				Opponent Viljoen, A (Alexander)
2	2	Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5				Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 0.5
		Opponent Mashaba, M (Mvuzo)				Opponent Day, A (Ayden)
3	1	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Van Rooyen, D (Daniel)				Opponent Van Rooyen, D (Daniel)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Mashishi, A (Aoretwe-Kgalalelo Leeu)				Opponent Viljoen, A (Alexander)
2	1	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Van Rooyen, D (Daniel)				Opponent Van Rooyen, D (Daniel)
3	1	Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5				Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Baghban, R (Rezvan Elshan)				Opponent Baghban, R (Rezvan Elshan)

#	Games	Start				End
1	2	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Mashishi, A (Aoretwe-Kgalalelo Leeu)				Opponent Viljoen, A (Alexander)
2	1	Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Van Rooyen, D (Daniel)				Opponent Van Rooyen, D (Daniel)
3	1	Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5				Tournament 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Baghban, R (Rezvan Elshan)				Opponent Baghban, R (Rezvan Elshan)

No games found.

#	Games	Start				End

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	Viljoen ,A (Alexander)	1	1	425	1	1	425	0	0	0	0	0	0
1	Viljoen ,A (Alexander)	1	1177.9	1602.9	1	1173.5	1602.9	0	0	0	0	0	0
2	De Waal ,L (Landon John)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	De Waal ,L (Landon John)	1	1236.9	811.9	1	1243.3	811.9	0	0	0	0	0	0
3	Swart ,R (Reyhan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Swart ,R (Reyhan)	1	1432.5	1007.5	1	1431.7	1007.5	0	0	0	0	0	0
4	Baghban ,R (Rezvan Elshan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Baghban ,R (Rezvan Elshan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Van Rooyen ,D (Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Rooyen ,D (Daniel)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Du Preez ,L (Lourens)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Du Preez ,L (Lourens)	1	1251.3	826.3	1	1251.6	826.3	0	0	0	0	0	0
7	Mashishi ,A (Aoretwe-Kgalalelo Leeu)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mashishi ,A (Aoretwe-Kgalalelo Leeu)	1	1198.8	1623.8	1	1198.5	1623.8	0	0	0	0	0	0
8	Day ,A (Ayden)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Day ,A (Ayden)	1	1205.4	1205.4	1	1206	1205.4	0	0	0	0	0	0
9	Mashaba ,M (Mvuzo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mashaba ,M (Mvuzo)	1	1217.6	1642.6	1	1220.4	1642.6	0	0	0	0	0	0
10	Pauls ,R (Ruan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Pauls ,R (Ruan)	1	1271.7	846.7	1	1285.6	846.7	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

Du Plessis, J (Jan-Harm)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms