Chess South Africa Ratings Database

PLAYER PAGE

Personal

Shoriwa, M (Mary)

Chess SA id

2100302309

FIDE id

Date of birth

2010-08-22 (U16)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-09

Personal details last changed

1900-01-01

Junior GPX Games

18.2

Junior GPX Points

1238.9

Item	Main	Standard	Rapid	Blitz
Rating	1263.8	1250.9	1280.7	1200
Raw rating	1263.8	1250.9	1280.7	1200
Weighted rating	1217.9	1200.8	1260.6	1200
Weighted performance	1217.4	1152.2	0	0
Floor	763.8	750.9	780.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.4	154.2	147.8	165.8
Highest rating	1387.9 2024-04-01	1250.9 2025-09-01	1461 2024-04-01	1200 2024-05-01
Highest raw rating	1263.8 2025-09-01	1250.9 2025-09-01	1280.7 2025-09-01	1200 2024-05-01
Highest weighted rating	1233.1 2024-07-01	1226.1 2024-05-01	1258.4 2024-10-01	1200 2024-05-01
Highest weighted performance	1387.9 2024-04-01	1200 2024-05-01	1461 2024-04-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1263.8	1250.9	1280.7	1200
Analysis
Rating	1263.8	1250.9	1280.7	1200
Raw rating	1263.8	1250.9	1280.7	1200
Weighted rating	1217.9	1200.8	1260.6
Weighted performance	1217.4	1152.2	0
K-factor	36	36	36	36
Floor	763.8	750.9	780.7	700
Max/Min rating change allowed	151.4	154.2	147.8	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	1263.8	1250.9	1280.7	1200
New weighted rating	1222.2	1205.4	1263.1	1200
New weighted performance	1209.9	1144.9	0	0
Temp new rating	1263.8	1250.9	1280.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1263.8	1250.9	1280.7	1200
New K-factor	36	36	36	36
New floor	763.8	750.9	780.7	700

Item	Main	Standard	Rapid
	0	0	0
	22	17	5
	14	9	5
	0	0	0
	0	0	0
	0	0	0
History	36	26	10

Games since
	Main 36	Standard 26		Rapid 10		Blitz 0
Gender	Female
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-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	22	13	59.09	77.3	1255.2	1332.5
Standard	17	9.5	55.88	50	1271.5	1321.5
Rapid	5	3.5	70	170	1199.8	1369.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	36	18	50	0	1265.2	1265.2
Standard	26	10.5	40.38	-81.7	1290.4	1208.6
Rapid	10	7.5	75	212.5	1199.9	1412.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1263.8	1250.9	1280.7	1200
2025-09-30	1263.8	1250.9	1280.7	1200
2025-09-01	1263.8	1250.9	1280.7	1200
2025-08-01	1224.2	1215	1258.4	1200
2025-07-01	1224.2	1215	1258.4	1200
2025-06-01	1224.2	1215	1258.4	1200
2025-05-01	1224.2	1215	1258.4	1200
2025-04-01	1224.2	1215	1258.4	1200
2025-03-01	1233.1	1226.1	1258.4	1200
2025-02-01	1187.8	1166.5	1258.4	1200
2025-01-01	1154.7	1115.2	1258.4	1200
2024-12-01	1154.7	1115.2	1258.4	1200
2024-11-01	1154.7	1115.2	1258.4	1200
2024-10-01	1154.7	1115.2	1258.4	1200
2024-09-01	1205.8	1180.4	1258.4	1200
2024-08-01	1205.8	1180.4	1258.4	1200
2024-07-01	1222.8	1200	1258.4	1200
2024-09-01	1222.8	1200	1258.4	1200
2024-05-01	1222.8	1200	1258.4	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

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	Kraaifontein Schools Rapid Chess Tournament 2025 (Intermediate Girls)	2025-08-09	2025-08-09	Rapid	Cape Town (WCT)	5	5	3.5	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15-U19 Girls)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	6	5	3.5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U15 Girls)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kraaifontein Schools Rapid Chess Tournament 2025 (Intermediate Girls)	2025-08-09	2025-08-09	Rapid	Cape Town (WCT)	5	5	3.5	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15-U19 Girls)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	6	5	3.5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U15 Girls)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	Western Cape Top Schools Championship 2024 (U15 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	0	Yes	Analysis
6	CT Metro District East Top Schools Chess 2024 (U15+U18 Girls)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
7	Kraaifontein Schools Rapid 2024 (Intermediate Girls)	2024-04-13	2024-04-13	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis

#	Games	Start				End
1	5	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 1	type Standard	result 1
		Opponent Swart, H (Haylee)				Opponent Woolf, J (Jessika)
2	4	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 0.5
		Opponent Abdi, I (Iqra)				Opponent Maree, M (Maria)
3	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-03	rnd 6	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Mboyo, D (Diana)

#	Games	Start				End
1	5	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 1	type Standard	result 1
		Opponent Swart, H (Haylee)				Opponent Woolf, J (Jessika)
2	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-03	rnd 6	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Mboyo, D (Diana)
3	1	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-03-02	rnd 6	type Standard	result 1
		Opponent Fairhurst, M (Micke)				Opponent Fairhurst, M (Micke)

#	Games	Start				End
1	4	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 0.5
		Opponent Abdi, I (Iqra)				Opponent Maree, M (Maria)
2	2	Tournament Kraaifontein Schools Rapid 2024				Tournament Kraaifontein Schools Rapid 2024
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2024-04-13	rnd 5	type Rapid	result 1
		Opponent Paliso, S (Simbulokuhle)				Opponent Msindwana, I (Iminam)
3	2	Tournament Kraaifontein Schools Rapid 2024				Tournament Kraaifontein Schools Rapid 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 2	type Rapid	result 1
		Opponent Mpayipheli, A (Amahle)				Opponent Daka, K (Kwakhanya)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Abdi, I (Iqra)				Opponent Monk, A (Anastasia)
2	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-03	rnd 4	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Fortuin, S (Sharonique)
3	2	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 3	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Swart, H (Haylee)				Opponent Diedericks , B (Belinda)

#	Games	Start				End
1	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-03	rnd 4	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Fortuin, S (Sharonique)
2	2	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 3	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Swart, H (Haylee)				Opponent Diedericks , B (Belinda)
3	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 6	type Standard	result 1	date 2025-08-03	rnd 6	type Standard	result 1
		Opponent Mboyo, D (Diana)				Opponent Mboyo, D (Diana)

#	Games	Start				End
1	3	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 4	type Rapid	result 1
		Opponent Abdi, I (Iqra)				Opponent Monk, A (Anastasia)
2	2	Tournament Kraaifontein Schools Rapid 2024				Tournament Kraaifontein Schools Rapid 2024
		date 2024-04-13	rnd 4	type Rapid	result 1	date 2024-04-13	rnd 5	type Rapid	result 1
		Opponent Paliso, S (Simbulokuhle)				Opponent Msindwana, I (Iminam)
3	2	Tournament Kraaifontein Schools Rapid 2024				Tournament Kraaifontein Schools Rapid 2024
		date 2024-04-13	rnd 1	type Rapid	result 1	date 2024-04-13	rnd 2	type Rapid	result 1
		Opponent Mpayipheli, A (Amahle)				Opponent Daka, K (Kwakhanya)

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	Bellini ,G (Gemma)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Bellini ,G (Gemma)	2	1368.2	943.2	2	1348.4	943.2	0	0	0	0	0	0
2	Mboyo ,D (Diana)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	Mboyo ,D (Diana)	2	1200	1412.5	2	1200	1412.5	0	0	0	0	0	0
3	Jacobs ,T (Teleah)	2	1	0	2	1	0	0	0	0	0	0	0
3	Jacobs ,T (Teleah)	2	1397.5	1397.5	2	1376.7	1397.5	0	0	0	0	0	0
4	Msindwana ,I (Iminam)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
4	Msindwana ,I (Iminam)	2	1223.6	1436.1	1	1257.2	1223.6	1	1200	1648.6	0	0	0
5	Monk ,A (Anastasia)	2	2	425	1	1	425	1	1	425	0	0	0
5	Monk ,A (Anastasia)	2	1199.4	1624.4	1	1199.3	1624.4	1	1200	1624.4	0	0	0
6	Woolf ,J (Jessika)	1	1	425	1	1	425	0	0	0	0	0	0
6	Woolf ,J (Jessika)	1	1335.2	1760.2	1	1333	1760.2	0	0	0	0	0	0
7	Ngesi ,A (Acwenga)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ngesi ,A (Acwenga)	1	1238.3	813.3	1	1237.8	813.3	0	0	0	0	0	0
8	Van Niekerk ,L (Lizelle)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Niekerk ,L (Lizelle)	1	1545.9	1120.9	1	1532.5	1120.9	0	0	0	0	0	0
9	Someleka ,I (Iminam)	1	1	425	1	1	425	0	0	0	0	0	0
9	Someleka ,I (Iminam)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Leenderts ,S (Shanique)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Leenderts ,S (Shanique)	1	1255.3	830.3	1	1258	830.3	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

Shoriwa, M (Mary)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms