Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marais, O (Oshman)

Chess SA id

1090320280

FIDE id

Date of birth

2009-09-19 (U18)

Gender

Male

Region

Namakwa (NCN)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

16.8

Junior GPX Points

1026.4

Item	Main	Standard	Rapid	Blitz
Rating	1205.7	1195.7	1268.5	1200
Raw rating	1205.7	1174.2	1268.5	1200
Weighted rating	1200.6	1195.7	1210.7	1200
Weighted performance	0	0	0	0
Floor	705.7	699.9	768.5	700
K-factor	36	40	36	36
Min/Max rating change allowed	164.5	172	150.4	165.8
Highest rating	1205.7 2025-09-01	1199.9 2025-05-13	1268.5 2025-09-01	1200 2025-06-01
Highest raw rating	1205.7 2025-09-01	1199.9 2025-05-13	1268.5 2025-09-01	1200 2025-06-01
Highest weighted rating	1200.2 2025-09-01	1199.9 2025-05-13	1205.5 2025-09-01	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	-1.9	0	0
New rating	1205.7	1193.8	1268.5	1200
Analysis
Rating	1205.7	1195.7	1268.5	1200
Raw rating	1205.7	1174.2	1268.5	1200
Weighted rating	1200.6	1195.7	1210.7
Weighted performance	0	0	0
K-factor	36	40	36	36
Floor	705.7	699.9	768.5	700
Max/Min rating change allowed	164.5	172	150.4	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	1205.7	1174.2	1268.5	1200
New weighted rating	1201.1	1193.8	1215.8	1200
New weighted performance	0	0	0	0
Temp new rating	1205.7	1193.8	1268.5	1200
Temp new rating +/-	0	-1.9	0	0
Final new rating +/-	0	-1.9	0	0
New rating	1205.7	1193.8	1268.5	1200
New K-factor	36	40	36	36
New floor	705.7	699.9	768.5	700

Item	Main	Standard	Rapid
	0	0	0
	24	14	10
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	24	14	10

Games since
	Main 24	Standard 14		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Namakwa (NCN)
Province	Northern Cape (NC)
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	24	11.5	47.92	-17.7	1223.4	1205.7
Standard	14	4.5	32.14	-151.8	1244.8	1093
Rapid	10	7	70	170	1193.5	1363.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	11.5	47.92	-17.7	1223.4	1205.7
Standard	14	4.5	32.14	-151.8	1244.8	1093
Rapid	10	7	70	170	1193.5	1363.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1205.7	1174.2	1268.5	1200
2025-09-01	1205.7	1174.2	1268.5	1200
2025-08-01	1199.7	1199.7	1200	1200
2025-07-01	1199.6	1199.5	1200	1200
2025-06-01	1197.2	1196.6	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
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
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	Northern Cape Closed 202 (U18 Open)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	1.5	Yes	Analysis
2	Namakwa Toernooi 3 2025 (U18)	2025-08-09	2025-08-09	Rapid	Namakwa (NCN)	10	10	7	Yes	Analysis
3	Spartan Bishops Championships Elite 2025 (U18)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	4	0	Yes	Analysis
4	2025 Namakwa Skaak Toernoei 2.0 (U16)	2025-05-10	2025-05-10	Standard	Namakwa (NCN)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Northern Cape Closed 202 (U18 Open)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	1.5	Yes	Analysis
2	Namakwa Toernooi 3 2025 (U18)	2025-08-09	2025-08-09	Rapid	Namakwa (NCN)	10	10	7	Yes	Analysis
3	Spartan Bishops Championships Elite 2025 (U18)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	4	0	Yes	Analysis
4	2025 Namakwa Skaak Toernoei 2.0 (U16)	2025-05-10	2025-05-10	Standard	Namakwa (NCN)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Steenkamp, C (Christin)				Opponent Myburgh, M (Marthinus)
2	3	Tournament 2025 Namakwa Skaak Toernoei 2.0				Tournament 2025 Namakwa Skaak Toernoei 2.0
		date 2025-05-10	rnd 3	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Jantjies, C (Chelsey)				Opponent Van Heerden, C (Caleb)
3	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 0.5
		Opponent Smith, J (Jean-Pete)				Opponent Drage, S (Shaunwin)

#	Games	Start				End
1	3	Tournament 2025 Namakwa Skaak Toernoei 2.0				Tournament 2025 Namakwa Skaak Toernoei 2.0
		date 2025-05-10	rnd 3	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Jantjies, C (Chelsey)				Opponent Van Heerden, C (Caleb)
2	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 0.5
		Opponent Smith, J (Jean-Pete)				Opponent Drage, S (Shaunwin)

#	Games	Start				End
1	3	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Steenkamp, C (Christin)				Opponent Myburgh, M (Marthinus)
2	2	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 9	type Rapid	result 1	date 2025-08-09	rnd 10	type Rapid	result 1
		Opponent Ruiters, R (Rayford)				Opponent Van Den Heever, M (Matthew)
3	2	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 6	type Rapid	result 1	date 2025-08-09	rnd 7	type Rapid	result 1
		Opponent Losper, L (Lael)				Opponent Drage, S (Shaunwin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Steenkamp, C (Christin)				Opponent Myburgh, M (Marthinus)
2	3	Tournament 2025 Namakwa Skaak Toernoei 2.0				Tournament 2025 Namakwa Skaak Toernoei 2.0
		date 2025-05-10	rnd 3	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Jantjies, C (Chelsey)				Opponent Van Heerden, C (Caleb)
3	2	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 9	type Rapid	result 1	date 2025-08-09	rnd 10	type Rapid	result 1
		Opponent Ruiters, R (Rayford)				Opponent Van Den Heever, M (Matthew)

#	Games	Start				End
1	3	Tournament 2025 Namakwa Skaak Toernoei 2.0				Tournament 2025 Namakwa Skaak Toernoei 2.0
		date 2025-05-10	rnd 3	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Jantjies, C (Chelsey)				Opponent Van Heerden, C (Caleb)
2	1	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 3	type Standard	result 1
		Opponent Smith, J (Jean-Pete)				Opponent Smith, J (Jean-Pete)

#	Games	Start				End
1	3	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Steenkamp, C (Christin)				Opponent Myburgh, M (Marthinus)
2	2	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 9	type Rapid	result 1	date 2025-08-09	rnd 10	type Rapid	result 1
		Opponent Ruiters, R (Rayford)				Opponent Van Den Heever, M (Matthew)
3	2	Tournament Namakwa Toernooi 3 2025				Tournament Namakwa Toernooi 3 2025
		date 2025-08-09	rnd 6	type Rapid	result 1	date 2025-08-09	rnd 7	type Rapid	result 1
		Opponent Losper, L (Lael)				Opponent Drage, S (Shaunwin)

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	Engelbrecht ,J (Jatin)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Engelbrecht ,J (Jatin)	2	1207.6	782.6	1	1198.4	782.6	1	1200	782.6	0	0	0
2	Drage ,S (Shaunwin)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
2	Drage ,S (Shaunwin)	2	1212.7	1425.2	1	1216.8	1212.7	1	1200	1637.7	0	0	0
3	Smith ,J (Jean-Pete)	2	2	425	1	1	425	1	1	425	0	0	0
3	Smith ,J (Jean-Pete)	2	1147.1	1572.1	1	1199.8	1572.1	1	1117.6	1572.1	0	0	0
4	Van Den Heever ,M (Matthew)	2	1	0	1	0	-425	1	1	425	0	0	0
4	Van Den Heever ,M (Matthew)	2	1196.8	1196.8	1	1194.9	771.8	1	1200	1621.8	0	0	0
5	Els ,C (Christiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Els ,C (Christiaan)	1	1356.1	931.1	1	1354.9	931.1	0	0	0	0	0	0
6	Saal ,K (Keshan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Saal ,K (Keshan)	1	1389.1	964.1	1	1402.6	964.1	0	0	0	0	0	0
7	Thiersen ,N (Noa)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Thiersen ,N (Noa)	1	1311.5	886.5	1	1309.4	886.5	0	0	0	0	0	0
8	Green ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Green ,J (Jordan)	1	1272	847	1	1280.1	847	0	0	0	0	0	0
9	Van Heerden ,C (Caleb)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Heerden ,C (Caleb)	1	1199.4	1624.4	1	1199.2	1624.4	0	0	0	0	0	0
10	Hendricks ,G (Garryn)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Hendricks ,G (Garryn)	1	1227.1	802.1	1	1218.7	802.1	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

Marais, O (Oshman)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms