Chess South Africa Ratings Database

PLAYER PAGE

Personal

Roos, M (Michael)

Chess SA id

1090134395

FIDE id

Date of birth

2009-11-30 (U18)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-05-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1195.6	1203.2	1187.2	1200
Raw rating	1195.6	1203.2	1187.2	1200
Weighted rating	1195.6	1203.2	1187.2	1200
Weighted performance	656.7	0	0	0
Floor	739.7	760.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	166.9	165.1	168.9	165.8
Highest rating	1292.8 2021-05-01	1333.8 2022-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1239.7 2022-05-01	1260.8 2022-04-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1239.7 2022-05-01	1260.8 2022-05-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1292.8 2021-05-01	1333.8 2022-03-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1195.6	1203.2	1187.2	1200
Analysis
Rating	1195.6	1203.2	1187.2	1200
Raw rating	1195.6	1203.2	1187.2	1200
Weighted rating	1195.6	1203.2	1187.2
Weighted performance	656.7	0	0
K-factor	36	36	36	36
Floor	739.7	760.8	700	700
Max/Min rating change allowed	166.9	165.1	168.9	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	1195.6	1203.2	1187.2	1200
New weighted rating	1195.6	1203.2	1187.2	1200
New weighted performance	656.3	0	0	0
Temp new rating	1195.6	1203.2	1187.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1195.6	1203.2	1187.2	1200
New K-factor	36	36	36	36
New floor	739.7	760.8	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	22	11	11
	10	5	5
History	32	16	16

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Overberg (WOS)
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	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
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	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	32	15.5	48.44	-13.3	1222.3	1209.1
Standard	16	8	50	0	1236	1236
Rapid	16	7.5	46.88	-26.6	1208.7	1182.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1195.6	1203.2	1187.2	1200
2025-09-01	1195.6	1203.2	1187.2	1200
2025-08-01	1195.6	1203.2	1187.2	1200
2025-07-01	1195.6	1203.2	1187.2	1200
2025-06-01	1195.6	1203.2	1187.2	1200
2025-05-01	1195.6	1203.2	1187.2	1200
2025-04-01	1195.6	1203.2	1187.2	1200
2025-03-01	1195.6	1203.2	1187.2	1200
2025-02-01	1195.6	1203.2	1187.2	1200
2025-01-01	1195.6	1203.2	1187.2	1200
2024-12-01	1195.6	1203.2	1187.2	1200
2024-11-01	1195.6	1203.2	1187.2	1200
2024-10-01	1195.6	1203.2	1187.2	1200
2024-09-01	1195.6	1203.2	1187.2	1200
2024-08-01	1195.6	1203.2	1187.2	1200
2024-07-01	1195.6	1203.2	1187.2	1200
2024-06-01	1195.6	1203.2	1187.2	1200
2024-08-01	1195.6	1203.2	1187.2	1200
2024-04-01	1195.6	1203.2	1187.2	1200
2024-03-01	1195.6	1203.2	1187.2	1200
2024-02-01	1195.6	1203.2	1187.2	1200
2024-01-01	1195.6	1203.2	1187.2	1200
2023-12-01	1195.6	1203.2	1187.2	1200
2023-11-01	1195.6	1203.2	1187.2	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	The Hermanus Open 2022 (U14)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
2	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis
3	OCF Open 2022 (U14)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg Primary Schools Closed 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
5	Overberg Schools Trials 2021 (U13)	2021-09-18	2021-09-18	Rapid	Overberg (WOS)	5	5	1.5	Yes	Analysis
6	Gen Intercampus 2021 (U14)	2021-05-22	2021-05-22	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Overberg Schools Trials 2021				Tournament Overberg Primary Schools Closed 2022
		date 2021-09-18	rnd 5	type Rapid	result 0.5	date 2022-03-12	rnd 3	type Standard	result 0.5
		Opponent Pekeur, I (Iwena)				Opponent Du Plessis, MA (Matthys)
2	2	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 4	type Rapid	result 1
		Opponent Heydenrych, J (Jana)				Opponent De Vos, K (Kyle)
3	2	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 2	type Rapid	result 1	date 2022-04-09	rnd 3	type Rapid	result 1
		Opponent Groenewald, M (Miguel)				Opponent Buxmann, S (Sonya)

#	Games	Start				End
1	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-03-12	rnd 3	type Standard	result 0.5
		Opponent Fourie, E (Ewie)				Opponent Du Plessis, MA (Matthys)
2	2	Tournament Gen Intercampus 2021				Tournament Gen Intercampus 2021
		date 2021-05-22	rnd 3	type Standard	result 1	date 2021-05-22	rnd 4	type Standard	result 1
		Opponent Amar, J (James)				Opponent Almagro, B (Benjamin)
3	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-05-29	rnd 6	type Standard	result 1
		Opponent Williams, S (Samuel)				Opponent Williams, S (Samuel)

#	Games	Start				End
1	2	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 4	type Rapid	result 1
		Opponent Heydenrych, J (Jana)				Opponent De Vos, K (Kyle)
2	2	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 2	type Rapid	result 1	date 2022-04-09	rnd 3	type Rapid	result 1
		Opponent Groenewald, M (Miguel)				Opponent Buxmann, S (Sonya)
3	1	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 6	type Rapid	result 1	date 2022-05-14	rnd 6	type Rapid	result 1
		Opponent Zindonda, B (Bradley)				Opponent Zindonda, B (Bradley)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 4	type Rapid	result 1
		Opponent Heydenrych, J (Jana)				Opponent De Vos, K (Kyle)
2	2	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 2	type Rapid	result 1	date 2022-04-09	rnd 3	type Rapid	result 1
		Opponent Groenewald, M (Miguel)				Opponent Buxmann, S (Sonya)
3	2	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-03-12	rnd 2	type Standard	result 1
		Opponent Fourie, E (Ewie)				Opponent Hansen, D (Damian)

#	Games	Start				End
1	2	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-03-12	rnd 2	type Standard	result 1
		Opponent Fourie, E (Ewie)				Opponent Hansen, D (Damian)
2	2	Tournament Gen Intercampus 2021				Tournament Gen Intercampus 2021
		date 2021-05-22	rnd 3	type Standard	result 1	date 2021-05-22	rnd 4	type Standard	result 1
		Opponent Amar, J (James)				Opponent Almagro, B (Benjamin)
3	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-05-29	rnd 6	type Standard	result 1
		Opponent Williams, S (Samuel)				Opponent Williams, S (Samuel)

#	Games	Start				End
1	2	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 4	type Rapid	result 1
		Opponent Heydenrych, J (Jana)				Opponent De Vos, K (Kyle)
2	2	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 2	type Rapid	result 1	date 2022-04-09	rnd 3	type Rapid	result 1
		Opponent Groenewald, M (Miguel)				Opponent Buxmann, S (Sonya)
3	1	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 6	type Rapid	result 1	date 2022-05-14	rnd 6	type Rapid	result 1
		Opponent Zindonda, B (Bradley)				Opponent Zindonda, B (Bradley)

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	Amar ,J (James)	2	1	0	1	1	425	1	0	-425	0	0	0
1	Amar ,J (James)	2	1185.2	1185.2	1	1200	1610.2	1	1198.8	760.2	0	0	0
2	Opperman ,C (Connor)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Opperman ,C (Connor)	1	1544.3	1119.3	1	1524.6	1119.3	0	0	0	0	0	0
3	Du Plessis ,MA (Matthys Armand)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Du Plessis ,MA (Matthys Armand)	1	1155.3	1155.3	1	1167.6	1155.3	0	0	0	0	0	0
4	Hofmeyr ,D (David)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Hofmeyr ,D (David)	1	1219.6	794.6	1	1219.6	794.6	0	0	0	0	0	0
5	Hansen ,D (Damian)	1	1	425	1	1	425	0	0	0	0	0	0
5	Hansen ,D (Damian)	1	1168.4	1593.4	1	1159.5	1593.4	0	0	0	0	0	0
6	Holt ,I (Isiah)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Holt ,I (Isiah)	1	1209.2	784.2	1	1215.2	784.2	0	0	0	0	0	0
7	Marsh ,M (Malakai)	1	1	425	1	1	425	0	0	0	0	0	0
7	Marsh ,M (Malakai)	1	1173.4	1598.4	1	1167.2	1598.4	0	0	0	0	0	0
8	Fourie ,E (Ewie)	1	1	425	1	1	425	0	0	0	0	0	0
8	Fourie ,E (Ewie)	1	1139.8	1564.8	1	1180	1564.8	0	0	0	0	0	0
9	Janse Van Rensburg ,A (Arden)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Janse Van Rensburg ,A (Arden)	1	1400.2	975.2	1	1335.9	975.2	0	0	0	0	0	0
10	Bredenkamp ,J (Jaydon)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bredenkamp ,J (Jaydon)	1	1313.5	888.5	1	1339.7	888.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Roos, M (Michael)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms