Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jiri, H (Henry)

Chess SA id

1110300068

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

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1155.6	1169.8	1160.7	1200
Raw rating	1155.6	1169.8	1160.7	1200
Weighted rating	1140.7	1165.6	1134.2	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	176.6	173.1	175.4	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	1155.6	1169.8	1160.7	1200
Analysis
Rating	1155.6	1169.8	1160.7	1200
Raw rating	1155.6	1169.8	1160.7	1200
Weighted rating	1140.7	1165.6	1134.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	176.6	173.1	175.4	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	1155.6	1169.8	1160.7	1200
New weighted rating	1141.3	1165.4	1135.8	1200
New weighted performance	0	0	0	0
Temp new rating	1155.6	1169.8	1160.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1155.6	1169.8	1160.7	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	9	5	4
	0	0	0
	0	0	0
	0	0	0
History	15	5	10

Games since
	Main 15	Standard 5		Rapid 10		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	-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	6	3	50	0	1219.9	1219.9
Standard	0	0	0	0	0	0
Rapid	6	3	50	0	1219.9	1219.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	4	26.67	-198.3	1197.1	998.8
Standard	5	1	20	-255	1183.9	928.9
Rapid	10	3	30	-170	1203.7	1033.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1155.6	1169.8	1160.7	1200
2025-09-01	1155.6	1169.8	1160.7	1200
2025-08-01	1145.5	1169.8	1137.1	1200
2025-07-01	1145.5	1169.8	1137.1	1200
2025-06-01	1145.5	1169.8	1137.1	1200
2025-05-01	1145.5	1169.8	1137.1	1200
2025-04-01	1145.5	1169.8	1137.1	1200
2025-03-01	1145.5	1169.8	1137.1	1200
2025-02-01	1144.3	1168.2	1136.7	1200
2025-01-01	1107.6	1135.2	1109.2	1200
2024-12-01	1107.6	1135.2	1109.2	1200
2024-11-01	1107.6	1135.2	1109.2	1200
2024-10-01	1107.6	1135.2	1109.2	1200
2024-09-01	1107.6	1135.2	1109.2	1200
2024-08-01	1107.6	1135.2	1109.2	1200
2024-07-01	1149.8	1200	1109.2	1200
2024-06-01	1149.8	1200	1109.2	1200
2024-08-01	1149.8	1200	1109.2	1200
2024-04-01	1149.8	1200	1109.2	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
2023-11-01	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

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 - Top Schools 2024 (U13 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
3	Overberg Schools - PS Trials Region 3 2024 (U13 Boys)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	4	0	Yes	Analysis

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Johannes, D (Daniel)				Opponent Alkaster, K (Keehourn)
2	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Phillips, N (Nathaniel)				Opponent Phillips, N (Nathaniel)
3	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Lingenfelder, I (Isebella)				Opponent Lingenfelder, I (Isebella)

#	Games	Start				End
1	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Lingenfelder, I (Isebella)				Opponent Lingenfelder, I (Isebella)

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Johannes, D (Daniel)				Opponent Alkaster, K (Keehourn)
2	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Phillips, N (Nathaniel)				Opponent Phillips, N (Nathaniel)

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 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Johannes, D (Daniel)				Opponent Alkaster, K (Keehourn)
2	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Phillips, N (Nathaniel)				Opponent Phillips, N (Nathaniel)
3	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Lingenfelder, I (Isebella)				Opponent Lingenfelder, I (Isebella)

#	Games	Start				End
1	1	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Lingenfelder, I (Isebella)				Opponent Lingenfelder, I (Isebella)

#	Games	Start				End
1	2	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Johannes, D (Daniel)				Opponent Alkaster, K (Keehourn)
2	1	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 3	type Rapid	result 1
		Opponent Phillips, N (Nathaniel)				Opponent Phillips, N (Nathaniel)

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	Lingenfelder ,I (Isebella)	1	1	425	1	1	425	0	0	0	0	0	0
1	Lingenfelder ,I (Isebella)	1	1179.1	1604.1	1	1161.5	1604.1	0	0	0	0	0	0
2	Henn ,E (Enwill)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Henn ,E (Enwill)	1	1155.4	730.4	1	1159.3	730.4	0	0	0	0	0	0
3	Rock ,M (Mieke)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Rock ,M (Mieke)	1	1142.9	717.9	1	1112.2	717.9	0	0	0	0	0	0
4	Prinsloo ,J (Jaco)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Prinsloo ,J (Jaco)	1	1246.8	821.8	1	1246.3	821.8	0	0	0	0	0	0
5	Prins ,C (Christiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Prins ,C (Christiaan)	1	1195.2	770.2	1	1171.9	770.2	0	0	0	0	0	0
6	Erasmus ,A (Ashton)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Erasmus ,A (Ashton)	1	1342.3	917.3	0	0	0	1	1363	917.3	0	0	0
7	Du Toit ,V (Victor)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Du Toit ,V (Victor)	1	1150.9	725.9	0	0	0	1	1111.2	725.9	0	0	0
8	D`Ambrosio ,G (Gohan)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	D`Ambrosio ,G (Gohan)	1	1155.1	730.1	0	0	0	1	1142	730.1	0	0	0
9	Reynecke ,K (Kiana)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Reynecke ,K (Kiana)	1	1196.2	771.2	0	0	0	1	1200	771.2	0	0	0
10	Alkaster ,K (Keehourn)	1	1	425	0	0	0	1	1	425	0	0	0
10	Alkaster ,K (Keehourn)	1	1194	1619	0	0	0	1	1200	1619	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Jiri, H (Henry)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms