Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jiri, H (Howard)

Chess SA id

1110300069

FIDE id

Date of birth

2011-01-03 (U16)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

12.5

Junior GPX Points

1009.3

Item	Main	Standard	Rapid	Blitz
Rating	1165.2	1171.8	1176.8	1200
Raw rating	1165.2	1171.8	1176.8	1200
Weighted rating	1153.5	1168.7	1156.8	1200
Weighted performance	1050	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.2	172.6	171.4	165.8
Highest rating	1200 2024-03-01	1200 2024-04-01	1200 2024-03-01	1200 2024-04-01
Highest raw rating	1200 2024-03-01	1200 2024-04-01	1200 2024-03-01	1200 2024-04-01
Highest weighted rating	1200 2024-03-01	1200 2024-04-01	1200 2024-03-01	1200 2024-04-01
Highest weighted performance	1200 2024-12-01	1200 2024-04-01	1200 2024-12-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1165.2	1171.8	1176.8	1200
Analysis
Rating	1165.2	1171.8	1176.8	1200
Raw rating	1165.2	1171.8	1176.8	1200
Weighted rating	1153.5	1168.7	1156.8
Weighted performance	1050	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	174.2	172.6	171.4	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	1165.2	1171.8	1176.8	1200
New weighted rating	1154.1	1168.5	1158.3	1200
New weighted performance	1043.4	0	0	0
Temp new rating	1165.2	1171.8	1176.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1165.2	1171.8	1176.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	22	4	18
	9	5	4
	0	0	0
	0	0	0
	0	0	0
History	31	9	22

Games since
	Main 31	Standard 9		Rapid 22		Blitz 0
Gender	Male
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
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	1782		880		135
Male	1338		649		84
U16	297		141		23
U16 Male	223		103		12
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	22	10	45.45	-38.6	1216	1177.3
Standard	4	1.5	37.5	-106.2	1211.2	1104.9
Rapid	18	8.5	47.22	-23.6	1217	1193.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	11.5	37.1	-109.7	1215.8	1106.1
Standard	9	2.5	27.78	-188.9	1227.3	1038.4
Rapid	22	9	40.91	-77.3	1211.1	1133.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1165.2	1171.8	1176.8	1200
2025-09-30	1165.2	1171.8	1176.8	1200
2025-09-01	1165.2	1171.8	1176.8	1200
2025-08-01	1156	1171.8	1161.5	1200
2025-07-01	1156	1171.8	1161.5	1200
2025-06-01	1156	1171.8	1161.5	1200
2025-05-01	1156	1171.8	1161.5	1200
2025-04-01	1156	1171.6	1161.5	1200
2025-03-01	1162.5	1173.5	1161.5	1200
2025-02-01	1155.9	1172.2	1153.2	1200
2025-01-01	1125.8	1143.2	1132.8	1200
2024-12-01	1125.8	1143.2	1132.8	1200
2024-11-01	1125.8	1143.2	1132.8	1200
2024-10-01	1125.8	1143.2	1132.8	1200
2024-09-01	1125.8	1143.2	1132.8	1200
2024-08-01	1125.8	1143.2	1132.8	1200
2024-07-01	1162.3	1200	1132.8	1200
2024-09-01	1162.3	1200	1132.8	1200
2024-05-01	1162.3	1200	1132.8	1200
2024-04-01	1162.3	1200	1132.8	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

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	Kleinmond Chess Club Open 2025 (U14)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	4	1.5	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
4	Curro Hermanus Summer Open 2025 (U15)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kleinmond Chess Club Open 2025 (U14)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	4	1.5	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
4	Curro Hermanus Summer Open 2025 (U15)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2.5	Yes	Analysis
5	Overberg Schools - Top Schools 2024 (U13 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
6	Overberg Schools - PS Trials Region 3 2024 (U13 Boys)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	4	0.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 2	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Louw, K (Keegan)				Opponent Williams, Q (Quelynn)
2	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 0.5
		Opponent De Vos, K (Kyle)				Opponent Cloete, K (Keanu)
3	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent De Kock, L (Lucas)				Opponent Yalabi, N (Ntlantla)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 0.5
		Opponent De Vos, K (Kyle)				Opponent Cloete, K (Keanu)
2	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Lotz, R (Renaldo)				Opponent Lotz, R (Renaldo)

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 2	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Louw, K (Keegan)				Opponent Williams, Q (Quelynn)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent De Kock, L (Lucas)				Opponent Yalabi, N (Ntlantla)
3	2	Tournament Curro Hermanus Summer Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-08	rnd 2	type Rapid	result 0.5	date 2025-02-08	rnd 3	type Rapid	result 1
		Opponent Benjamin, H (Hanekom)				Opponent Diederiks, K (Katryn)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 2	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Louw, K (Keegan)				Opponent Williams, Q (Quelynn)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent De Kock, L (Lucas)				Opponent Yalabi, N (Ntlantla)
3	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Steenkamp, C (Chavan)				Opponent Steenkamp, C (Chavan)

#	Games	Start				End
1	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent De Vos, K (Kyle)				Opponent De Vos, K (Kyle)
2	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Lotz, R (Renaldo)				Opponent Lotz, R (Renaldo)

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 2	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Louw, K (Keegan)				Opponent Williams, Q (Quelynn)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent De Kock, L (Lucas)				Opponent Yalabi, N (Ntlantla)
3	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Steenkamp, C (Chavan)				Opponent Steenkamp, C (Chavan)

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	Cloete ,K (Keanu)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
1	Cloete ,K (Keanu)	2	1226.3	1013.8	1	1225.2	1226.3	1	1200	801.3	0	0	0
2	Viljoen ,P (Pieter)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Viljoen ,P (Pieter)	2	1323.3	898.3	1	1337.8	898.3	1	1267.4	898.3	0	0	0
3	Beyers ,S (Skylar)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Beyers ,S (Skylar)	1	1337.8	912.8	1	1298	912.8	0	0	0	0	0	0
4	Booysen ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Booysen ,J (Joshua)	1	1196.6	771.6	1	1160.8	771.6	0	0	0	0	0	0
5	De Vos ,K (Kyle)	1	1	425	1	1	425	0	0	0	0	0	0
5	De Vos ,K (Kyle)	1	1184.6	1609.6	1	1163.7	1609.6	0	0	0	0	0	0
6	Zeederberg ,C (Cailen)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Zeederberg ,C (Cailen)	1	1232.4	807.4	1	1200	807.4	0	0	0	0	0	0
7	Mong ,B (Bernardus Johannes)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mong ,B (Bernardus Johannes)	1	1115.6	690.6	1	1137.6	690.6	0	0	0	0	0	0
8	Arendse ,V (Virgil)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Arendse ,V (Virgil)	1	1371.1	946.1	0	0	0	1	1331.1	946.1	0	0	0
9	Van Der Merwe ,L (Luan Rudolf Johanne)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Van Der Merwe ,L (Luan Rudolf Johanne)	1	1090.5	665.5	0	0	0	1	1101.6	665.5	0	0	0
10	Kiessling ,K (Kai)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Kiessling ,K (Kai)	1	1396.4	971.4	0	0	0	1	1286.2	971.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jiri, H (Howard)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms