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

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1205.7	1190.3	1268.5	1200
Raw rating	1205.7	1174.2	1268.5	1200
Weighted rating	1201.9	1190.3	1225.1	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	-1.6	0	0
New rating	1205.7	1188.7	1268.5	1200
Analysis
Rating	1205.7	1190.3	1268.5	1200
Raw rating	1205.7	1174.2	1268.5	1200
Weighted rating	1201.9	1190.3	1225.1
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	1202.2	1188.7	1229.5	1200
New weighted performance	0	0	0	0
Temp new rating	1205.7	1188.7	1268.5	1200
Temp new rating +/-	0	-1.6	0	0
Final new rating +/-	0	-1.6	0	0
New rating	1205.7	1188.7	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
2026-01-01	1205.7	1174.2	1268.5	1200
2025-11-30	1205.7	1174.2	1268.5	1200
2025-11-01	1205.7	1174.2	1268.5	1200
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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	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

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	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

Ratings

Tournaments

Grand Prix

Statistics

Notifications

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