Chess South Africa Ratings Database

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Personal

Johnson, D (Deomanthy)

Chess SA id

1080138371

FIDE id

Date of birth

2008-05-14 (U18)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1154.4	1110	1201.3	1200
Raw rating	1150.4	1110	1183.1	1200
Weighted rating	1154.4	1110	1201.3	1200
Weighted performance	951.7	0	1000.4	0
Floor	700	700	709.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	178	188.5	169.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1209.2 2024-02-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1209.2 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1209.2 2025-02-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.3	0	-1.6	0
New rating	1154.1	1110	1199.7	1200
Analysis
Rating	1154.4	1110	1201.3	1200
Raw rating	1150.4	1110	1183.1	1200
Weighted rating	1154.4	1110	1201.3
Weighted performance	951.7	0	1000.4
K-factor	36	36	36	36
Floor	700	700	709.2	700
Max/Min rating change allowed	178	188.5	169.8	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	1150.4	1110	1183.1	1200
New weighted rating	1154.1	1110	1199.7	1200
New weighted performance	945.4	0	993.8	0
Temp new rating	1154.1	1110	1199.7	1200
Temp new rating +/-	-0.3	0	-1.6	0
Final new rating +/-	-0.3	0	-1.6	0
New rating	1154.1	1110	1199.7	1200
New K-factor	36	36	36	36
New floor	700	700	709.2	700

Item	Main	Standard	Rapid
	0	0	0
	10	0	10
	5	0	5
	10	0	10
	9	5	4
	0	0	0
History	34	5	29

Games since
	Main 20	Standard 0		Rapid 20		Blitz 0
Gender	Male
Age group	U18
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1649		814		197
Male	1262		608		136
U18	186		88		36
U18 Male	157		73		32
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	3.5	35	-127.5	1215.5	1088
Standard	0	0	0	0	0	0
Rapid	10	3.5	35	-127.5	1215.5	1088
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	34	13	38.24	-100	1219.5	1119.5
Standard	5	0.5	10	-340	1162.4	822.4
Rapid	29	12.5	43.1	-58.6	1229.3	1170.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1150.4	1110	1183.1	1200
2025-09-30	1154.6	1110	1202.9	1200
2025-09-01	1154.6	1110	1202.9	1200
2025-08-01	1154.6	1110	1202.9	1200
2025-07-01	1154.4	1110	1202.9	1200
2025-06-01	1154.2	1110	1202.9	1200
2025-05-01	1153.9	1110	1202.9	1200
2025-04-01	1153.5	1110	1202.7	1200
2025-03-01	1152.6	1110	1200.7	1200
2025-02-01	1155.8	1110	1202.9	1200
2025-01-01	1155.8	1110	1202.7	1200
2024-12-01	1155.8	1110	1202.7	1200
2024-11-01	1155.8	1110	1202.7	1200
2024-10-01	1155.8	1110	1202.7	1200
2024-09-01	1155.8	1110	1202.7	1200
2024-08-01	1155.8	1110	1202.7	1200
2024-07-01	1155.8	1110	1202.7	1200
2024-09-01	1155.8	1110	1202.7	1200
2024-05-01	1155.8	1110	1202.7	1200
2024-04-01	1155.8	1110	1202.7	1200
2024-03-01	1155.8	1110	1202.7	1200
2024-02-01	1152.9	1110	1209.2	1200
2024-01-01	1152.9	1110	1209.2	1200
2023-12-01	1152.9	1110	1209.2	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	Western Cape Schools LSEN Championship 2025 (U17)	2025-10-16	2025-10-16	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
2	Lower West Coast Prestige 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools LSEN Championship 2025 (U17)	2025-10-16	2025-10-16	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
2	Lower West Coast Prestige 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	1.5	Yes	Analysis
3	Lower West Coast Schools Chess Prestige 2024 (U18 Boys)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
4	Cape Winelands LSEN Rapid Tournament 2023	2023-11-09	2023-11-09	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	West Coast Primary Schools Grand Challenge League 2023 (High School)	2023-10-21	2023-10-21	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
6	Onder-Weskus Top Skole 2022 (Hoerskool)	2022-06-04	2022-06-04	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
7	West Coast Schools Prestige 2022 (U15 Boys)	2022-02-19	2022-02-19	Standard	West Coast (WCU)	6	5	0.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Winelands LSEN Rapid Tournament 2023				Tournament Cape Winelands LSEN Rapid Tournament 2023
		date 2023-11-09	rnd 2	type Rapid	result 1	date 2023-11-09	rnd 4	type Rapid	result 1
		Opponent Mathazo, C (Cedric)				Opponent September, D (Decklan-Lee)
2	2	Tournament Western Cape Schools LSEN Championship 2025				Tournament Western Cape Schools LSEN Championship 2025
		date 2025-10-16	rnd 1	type Rapid	result 1	date 2025-10-16	rnd 2	type Rapid	result 1
		Opponent Ndlovu, K (Kgotso)				Opponent Rosenberg, M (Mickile)
3	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Hendricks, C (Chad)				Opponent Braaf, B (Bradley)

#	Games	Start				End
1	1	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 5	type Standard	result 0.5	date 2022-02-19	rnd 5	type Standard	result 0.5
		Opponent Kotze, Z (Zade)				Opponent Kotze, Z (Zade)

#	Games	Start				End
1	3	Tournament Cape Winelands LSEN Rapid Tournament 2023				Tournament Cape Winelands LSEN Rapid Tournament 2023
		date 2023-11-09	rnd 2	type Rapid	result 1	date 2023-11-09	rnd 4	type Rapid	result 1
		Opponent Mathazo, C (Cedric)				Opponent September, D (Decklan-Lee)
2	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Hendricks, C (Chad)				Opponent Braaf, B (Bradley)
3	2	Tournament Onder-Weskus Top Skole 2022				Tournament West Coast Primary Schools Grand Challenge League 2023
		date 2022-06-04	rnd 4	type Rapid	result 1	date 2023-10-21	rnd 1	type Rapid	result 1
		Opponent Ocks, J (Jason)				Opponent Maarman, P (Perusha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands LSEN Rapid Tournament 2023				Tournament Cape Winelands LSEN Rapid Tournament 2023
		date 2023-11-09	rnd 2	type Rapid	result 1	date 2023-11-09	rnd 4	type Rapid	result 1
		Opponent Mathazo, C (Cedric)				Opponent September, D (Decklan-Lee)
2	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Hendricks, C (Chad)				Opponent Braaf, B (Bradley)
3	2	Tournament Onder-Weskus Top Skole 2022				Tournament West Coast Primary Schools Grand Challenge League 2023
		date 2022-06-04	rnd 4	type Rapid	result 1	date 2023-10-21	rnd 1	type Rapid	result 1
		Opponent Ocks, J (Jason)				Opponent Maarman, P (Perusha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands LSEN Rapid Tournament 2023				Tournament Cape Winelands LSEN Rapid Tournament 2023
		date 2023-11-09	rnd 2	type Rapid	result 1	date 2023-11-09	rnd 4	type Rapid	result 1
		Opponent Mathazo, C (Cedric)				Opponent September, D (Decklan-Lee)
2	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Hendricks, C (Chad)				Opponent Braaf, B (Bradley)
3	2	Tournament Onder-Weskus Top Skole 2022				Tournament West Coast Primary Schools Grand Challenge League 2023
		date 2022-06-04	rnd 4	type Rapid	result 1	date 2023-10-21	rnd 1	type Rapid	result 1
		Opponent Ocks, J (Jason)				Opponent Maarman, P (Perusha)

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	Willemse ,G (Geheinruo)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Willemse ,G (Geheinruo)	1	1147.8	722.8	1	1166.4	722.8	0	0	0	0	0	0
2	Kotze ,Z (Zade)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Kotze ,Z (Zade)	1	1138.8	1138.8	1	1110.8	1138.8	0	0	0	0	0	0
3	Meyer ,J (Junior)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Meyer ,J (Junior)	1	1173.1	748.1	1	1137.6	748.1	0	0	0	0	0	0
4	Maroem ,D (Daron)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Maroem ,D (Daron)	1	1213.2	788.2	1	1215.6	788.2	0	0	0	0	0	0
5	Hendricks ,C (Chad)	1	1	425	0	0	0	1	1	425	0	0	0
5	Hendricks ,C (Chad)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Plaaitjies ,C (Chandler)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Plaaitjies ,C (Chandler)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Geduld ,K (Kah-Lee)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Geduld ,K (Kah-Lee)	1	1215.7	790.7	0	0	0	1	1204	790.7	0	0	0
8	Pieters ,D (Damian)	1	1	425	0	0	0	1	1	425	0	0	0
8	Pieters ,D (Damian)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Ndlovu ,K (Kgotso)	1	1	425	0	0	0	1	1	425	0	0	0
9	Ndlovu ,K (Kgotso)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Van Wyk ,P (Pieter)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Van Wyk ,P (Pieter)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Johnson, D (Deomanthy)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms