Chess South Africa Ratings Database

PLAYER PAGE

Personal

Orwin, M (Matthew)

Chess SA id

1100134370

FIDE id

Date of birth

2010-05-17 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1520.7	1507.9	1310.7	1200
Raw rating	1520.7	1507.9	1310.7	1200
Weighted rating	1492.9	1473.3	1308.9	1200
Weighted performance	1356.2	1335.9	0	0
Floor	1020.7	1007.9	810.7	700
K-factor	32	32	36	36
Min/Max rating change allowed	105	106.9	141.6	165.8
Highest rating	1578.1 2022-05-01	1572.8 2022-05-01	1505.2 2022-03-01	1200 2018-10-01
Highest raw rating	1520.7 2025-09-30	1507.9 2025-09-30	1310.7 2024-05-01	1200 2024-02-01
Highest weighted rating	1492.9 2025-09-30	1502 2025-02-01	1307.5 2025-08-01	1200 2018-10-01
Highest weighted performance	1578.1 2022-05-01	1572.8 2022-05-01	1505.2 2022-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1520.7	1507.9	1310.7	1200
Analysis
Rating	1520.7	1507.9	1310.7	1200
Raw rating	1520.7	1507.9	1310.7	1200
Weighted rating	1492.9	1473.3	1308.9
Weighted performance	1356.2	1335.9	0
K-factor	32	32	36	36
Floor	1020.7	1007.9	810.7	700
Max/Min rating change allowed	105	106.9	141.6	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	1520.7	1507.9	1310.7	1200
New weighted rating	1495.6	1476.1	1309.4	1200
New weighted performance	1355.7	1335.4	0	0
Temp new rating	1520.7	1507.9	1310.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1520.7	1507.9	1310.7	1200
New K-factor	32	32	36	36
New floor	1020.7	1007.9	810.7	700

Item	Main	Standard	Rapid
	0	0	0
	8	8	0
	25	23	2
	18	18	0
	23	12	11
	0	0	0
History	74	61	13

Games since
	Main 33	Standard 31		Rapid 2		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
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	1120		303		163
Male	956		247		137
U16	145		41		19
U16 Male	116		33		16
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	8	7	87.5	318.8	1288.3	1607.1
Standard	8	7	87.5	318.8	1288.3	1607.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	57	77.03	229.7	1309.8	1539.5
Standard	61	47	77.05	229.9	1318.8	1548.7
Rapid	13	10	76.92	228.8	1267.7	1496.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1520.7	1507.9	1310.7	1200
2025-09-01	1508.8	1492.2	1310.7	1200
2025-08-01	1493.7	1470.6	1310.7	1200
2025-07-01	1493.7	1470.6	1310.7	1200
2025-06-01	1493.7	1470.6	1310.7	1200
2025-05-01	1493.7	1470.6	1310.7	1200
2025-04-01	1493.7	1470.6	1310.7	1200
2025-03-01	1493.7	1470.6	1310.7	1200
2025-02-01	1493.7	1470.6	1310.7	1200
2025-01-01	1493.7	1470.6	1310.7	1200
2024-12-01	1493.7	1470.6	1310.7	1200
2024-11-01	1493.7	1470.6	1310.7	1200
2024-10-01	1493.7	1470.6	1310.7	1200
2024-09-01	1473.5	1452.7	1310.7	1200
2024-08-01	1473.5	1452.7	1310.7	1200
2024-07-01	1473.5	1452.7	1310.7	1200
2024-06-01	1473.5	1452.7	1310.7	1200
2024-08-01	1473.5	1452.7	1310.7	1200
2024-04-01	1466.4	1452.7	1284.4	1200
2024-03-01	1494.6	1502	1284.4	1200
2024-02-01	1478.1	1487.9	1284.4	1200
2024-01-01	1478.1	1487.9	1284.4	1200
2023-12-01	1478.1	1487.9	1284.4	1200
2023-11-01	1478.1	1487.9	1284.4	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 - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	4	3	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	4	3	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
3	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	4.5	Yes	Analysis
4	Cape Town Junior League Qualifier 2024 (U15 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	2	2	Yes	Analysis
5	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
6	Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
7	CT District East Schools Chess Individuals Trails 2024 (U15 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4.5	Yes	Analysis
8	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
9	Cape Town Metro Schools Chess Closed Individuals 2023 (U13 Boys)	2023-02-03	2023-03-04	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
10	District East Schools Chess Individual Trials 2023 (U13 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
11	Metro Rapid 2022 (U13 Boys)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
12	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
13	Metro WP Schools Chess Trials 2022 (U13 Boys)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
14	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis

#	Games	Start				End
1	8	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Schools - Top Schools 2025
		date 2024-08-30	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Calitz, Z (Zandre)				Opponent Viljoen, L (Lienka)
2	6	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Uys, B (Brendan)				Opponent Baker, A (Alex)
3	6	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Isaacs, T (Tyrique)				Opponent Pieterse, M (Matthew)

#	Games	Start				End
1	8	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Schools - Top Schools 2025
		date 2024-08-30	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Calitz, Z (Zandre)				Opponent Viljoen, L (Lienka)
2	8	Tournament Western Cape Schools 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-05-29	rnd 5	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Janse Van Rensburg, A (Arden)				Opponent Pieterse, M (Matthew)
3	6	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Uys, B (Brendan)				Opponent Baker, A (Alex)

#	Games	Start				End
1	5	Tournament 2022 East Dist Individuals				Tournament Metro Rapid 2022
		date 2022-03-12	rnd 6	type Rapid	result 1	date 2022-10-22	rnd 4	type Rapid	result 0.5
		Opponent Leenderts, S (Shanique)				Opponent Pedro, T (Tyreece)
2	4	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Ali, P (Pelser -Mohammed)				Opponent Smith, S (Shiloh)
3	2	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 3	type Rapid	result 1	date 2024-04-06	rnd 5	type Rapid	result 1
		Opponent Powis, R (Robert)				Opponent Leenderts, S (Shanique)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Isaacs, T (Tyrique)				Opponent Pieterse, M (Matthew)
2	5	Tournament CT Metro District East Top Schools Chess 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Nakani, M (Milani)				Opponent Viljoen, L (Lienka)
3	5	Tournament Western Cape HS Individuals Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-03-22	rnd 6	type Standard	result 1	date 2024-08-30	rnd 2	type Standard	result 1
		Opponent Nyandebvu, M (Mannasseh)				Opponent Van Rensburg, R (Ruben)

#	Games	Start				End
1	8	Tournament Western Cape Schools 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-05-29	rnd 5	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Janse Van Rensburg, A (Arden)				Opponent Pieterse, M (Matthew)
2	5	Tournament CT Metro District East Top Schools Chess 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Nakani, M (Milani)				Opponent Viljoen, L (Lienka)
3	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Matima, A (Aiden)				Opponent Booysen, W (Whandre)

#	Games	Start				End
1	4	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 4	type Rapid	result 1
		Opponent Ali, P (Pelser -Mohammed)				Opponent Smith, S (Shiloh)
2	2	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 3	type Rapid	result 1	date 2024-04-06	rnd 5	type Rapid	result 1
		Opponent Powis, R (Robert)				Opponent Leenderts, S (Shanique)
3	2	Tournament 2022 East Dist Individuals				Tournament Metro Rapid 2022
		date 2022-03-12	rnd 6	type Rapid	result 1	date 2022-10-22	rnd 1	type Rapid	result 1
		Opponent Leenderts, S (Shanique)				Opponent Hatley, L (Logan)

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	Van Niekerk ,JH (Johann Hendrik)	2	2	425	2	2	425	0	0	0	0	0	0
1	Van Niekerk ,JH (Johann Hendrik)	2	1293.2	1718.2	2	1258.6	1718.2	0	0	0	0	0	0
2	Tsabola ,B (Bright)	2	2	425	2	2	425	0	0	0	0	0	0
2	Tsabola ,B (Bright)	2	1338.4	1763.4	2	1318.2	1763.4	0	0	0	0	0	0
3	Salimu ,C (Chase)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Salimu ,C (Chase)	2	1591.8	1166.8	2	1490.8	1166.8	0	0	0	0	0	0
4	Solomon ,I (Izaiah)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	Solomon ,I (Izaiah)	2	1488.4	1063.4	1	1435.1	1063.4	1	1349.4	1063.4	0	0	0
5	Leenderts ,S (Shanique)	2	2	425	0	0	0	2	2	425	0	0	0
5	Leenderts ,S (Shanique)	2	1281.6	1706.6	0	0	0	2	1180.9	1706.6	0	0	0
6	Olkers ,D (Declan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Olkers ,D (Declan)	1	1506.4	1931.4	1	1474.5	1931.4	0	0	0	0	0	0
7	Viljoen ,L (Lienka)	1	1	425	1	1	425	0	0	0	0	0	0
7	Viljoen ,L (Lienka)	1	1338.7	1763.7	1	1323.2	1763.7	0	0	0	0	0	0
8	Uys ,B (Brendan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Uys ,B (Brendan)	1	1261.7	1686.7	1	1242.6	1686.7	0	0	0	0	0	0
9	Isaacs ,T (Tyrique)	1	1	425	1	1	425	0	0	0	0	0	0
9	Isaacs ,T (Tyrique)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Jacobs ,A (Aiden-Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Jacobs ,A (Aiden-Lee)	1	1282.8	857.8	1	1200	857.8	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

Orwin, M (Matthew)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms