Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mienies, R (Rewaldo)

Chess SA id

1040099004

FIDE id

Date of birth

2004-07-07 (Adult)

Gender

Male

Region

ZF Mgcawu (NZF)

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	1398.9	1399.2	1200	1200
Raw rating	1363.7	1358.3	1200	1200
Weighted rating	1398.9	1399.2	1200	1200
Weighted performance	1049.3	1045.4	0	0
Floor	909.4	911.4	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	131.3	132.3	165.8	165.8
Highest rating	1409.4 2024-02-01	1411.4 2024-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1409.4 2024-02-01	1411.4 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1409.4 2025-02-01	1411.4 2025-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1404.5 2019-09-01	1404.3 2019-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-3.2	-3.7	0	0
New rating	1395.7	1395.5	1200	1200
Analysis
Rating	1398.9	1399.2	1200	1200
Raw rating	1363.7	1358.3	1200	1200
Weighted rating	1398.9	1399.2	1200
Weighted performance	1049.3	1045.4	0
K-factor	32	32	36	36
Floor	909.4	911.4	700	700
Max/Min rating change allowed	131.3	132.3	165.8	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	1363.7	1358.3	1200	1200
New weighted rating	1395.7	1395.5	1200	1200
New weighted performance	1041.5	1037.5	0	0
Temp new rating	1395.7	1395.5	1200	1200
Temp new rating +/-	-3.2	-3.7	0	0
Final new rating +/-	-3.2	-3.7	0	0
New rating	1395.7	1395.5	1200	1200
New K-factor	32	32	36	36
New floor	909.4	911.4	700	700

Item	Main	Standard
	0	0
	10	10
	0	0
	5	5
	0	0
	5	5
History	98	98

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	ZF Mgcawu (NZF)
Province	Northern Cape (NC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	10	5	50	0	1274.9	1274.9
Standard	10	5	50	0	1274.9	1274.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	98	67	68.37	156.1	1155.3	1311.4
Standard	98	67	68.37	156.1	1155.3	1311.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1363.7	1358.3	1200	1200
2025-09-30	1363.7	1358.3	1200	1200
2025-09-01	1363.7	1358.3	1200	1200
2025-08-01	1409.4	1411.4	1200	1200
2025-07-01	1409.4	1411.4	1200	1200
2025-06-01	1409.4	1411.4	1200	1200
2025-05-01	1409.4	1411.4	1200	1200
2025-04-01	1409.4	1411.4	1200	1200
2025-03-01	1409.4	1411.4	1200	1200
2025-02-01	1409.4	1411.4	1200	1200
2025-01-01	1409.4	1411.4	1200	1200
2024-12-01	1409.4	1411.4	1200	1200
2024-11-01	1409.4	1411.4	1200	1200
2024-10-01	1409.4	1411.4	1200	1200
2024-09-01	1409.4	1411.4	1200	1200
2024-08-01	1409.4	1411.4	1200	1200
2024-07-01	1409.4	1411.4	1200	1200
2024-09-01	1409.4	1411.4	1200	1200
2024-05-01	1409.4	1411.4	1200	1200
2024-04-01	1409.4	1411.4	1200	1200
2024-03-01	1409.4	1411.4	1200	1200
2024-02-01	1409.4	1411.4	1200	1200
2024-01-01	1409.4	1411.4	1200	1200
2023-12-01	1409.4	1411.4	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 (Adults)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
2	2025 Simmie Superstars Chess Tournament (U18+Adult)	2025-08-02	2025-08-02	Standard	ZF Mgcawu (NZF)	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 (Adults)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
2	2025 Simmie Superstars Chess Tournament (U18+Adult)	2025-08-02	2025-08-02	Standard	ZF Mgcawu (NZF)	5	5	3	Yes	Analysis
3	ZF Mgcawu Open 2023 (U19)	2023-03-04	2023-03-04	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis
4	ZFM Chess Championships 2021 (A)	2021-09-04	2021-09-04	Standard	ZF Mgcawu (NZF)	5	5	3	Yes	Analysis
5	Northern Cape Closed Chess Championships 2019 (U10)	2019-08-30	2019-09-01	Standard	ZF Mgcawu (NZF)	5	5	4.5	Yes	Analysis
6	2019 SA Schools Winter Games (U15 Boys)	2019-07-01	2019-07-04	Standard	Ethekwini (KED)	7	7	3.5	Yes	Analysis
7	Northern Cape Trails 2019 (U15 Boys)	2019-06-13	2019-06-13	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis
8	Inter Regional Chess Championship 2019 (U16)	2019-05-10	2019-05-11	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
9	ZFM School Trials 2019 (U15)	2019-04-27	2019-04-27	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis
10	ZFM Open Tournament 2019 (U16)	2019-03-02	2019-03-02	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis
11	South African Junior Team Championships 2018 (U16C)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
12	Northern Cape Closed Chess Championships 2018 (U16 Open)	2018-08-31	2018-09-01	Standard	Frances Baard (NCF)	5	5	4	Yes	Analysis
13	King`s Guard Women`s Day Open Chess Tournament 2018 (A)	2018-08-04	2018-08-04	Standard	ZF Mgcawu (NZF)	5	4	2	Yes	Analysis
14	ZF MGCAWU Mandela Centenary Open Chess Tournament 2018 (U16)	2018-07-20	2018-07-21	Standard	ZF Mgcawu (NZF)	6	6	4	Yes	Analysis
15	NC Provincial Schools Eliminations 2018 (U15 Boys)	2018-06-23	2018-06-23	Standard	Frances Baard (NCF)	5	5	4.5	Yes	Analysis
16	Inter Regional 2018 (U16 Team)	2018-05-04	2018-05-05	Standard	Frances Baard (NCF)	5	4	3	Yes	Analysis
17	ZF Mgcawu Qualifier (2)	2018-04-21	2018-04-21	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
18	ZF Mgcawu Schools District Open Chess Tournament 2018 (U15 Boys)	2018-03-17	2018-03-17	Standard	ZF Mgcawu (NZF)	5	5	4	Yes	Analysis
19	ZF Mgcawu Inter-Region Open Trials (Qualifier 2)	2018-03-24	2018-03-24	Standard	ZF Mgcawu (NZF)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Inter Regional 2018				Tournament ZF MGCAWU Mandela Centenary Open Chess Tournament 2018
		date 2018-05-05	rnd 3	type Standard	result 1	date 2018-07-20	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, N (Nariema)				Opponent Hendriks, L (Lynor Luzain)
2	7	Tournament ZFM School Trials 2019				Tournament Inter Regional Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Booysen, ES (Edward Stefanus)				Opponent Difotso, T (Tshegofatso)
3	6	Tournament Northern Cape Closed Chess Championships 2019				Tournament ZFM Chess Championships 2021
		date 2019-08-30	rnd 1	type Standard	result 1	date 2021-09-04	rnd 1	type Standard	result 1
		Opponent Raymond, A (Ashlin)				Opponent Jooste, W (Waylin)

#	Games	Start				End
1	9	Tournament Inter Regional 2018				Tournament ZF MGCAWU Mandela Centenary Open Chess Tournament 2018
		date 2018-05-05	rnd 3	type Standard	result 1	date 2018-07-20	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, N (Nariema)				Opponent Hendriks, L (Lynor Luzain)
2	7	Tournament ZFM School Trials 2019				Tournament Inter Regional Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Booysen, ES (Edward Stefanus)				Opponent Difotso, T (Tshegofatso)
3	6	Tournament Northern Cape Closed Chess Championships 2019				Tournament ZFM Chess Championships 2021
		date 2019-08-30	rnd 1	type Standard	result 1	date 2021-09-04	rnd 1	type Standard	result 1
		Opponent Raymond, A (Ashlin)				Opponent Jooste, W (Waylin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament ZFM School Trials 2019				Tournament Inter Regional Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Booysen, ES (Edward Stefanus)				Opponent Difotso, T (Tshegofatso)
2	6	Tournament Inter Regional 2018				Tournament NC Provincial Schools Eliminations 2018
		date 2018-05-05	rnd 3	type Standard	result 1	date 2018-06-23	rnd 3	type Standard	result 1
		Opponent Van Der Westhuizen, N (Nariema)				Opponent Bezuidenhout, H (Hilton)
3	5	Tournament ZFM Open Tournament 2019				Tournament ZFM School Trials 2019
		date 2019-03-02	rnd 2	type Standard	result 1	date 2019-04-27	rnd 1	type Standard	result 1
		Opponent Mankayi, A (Aphelele)				Opponent Rampie, A (Alexandro)

#	Games	Start				End
1	7	Tournament ZFM School Trials 2019				Tournament Inter Regional Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Booysen, ES (Edward Stefanus)				Opponent Difotso, T (Tshegofatso)
2	6	Tournament Inter Regional 2018				Tournament NC Provincial Schools Eliminations 2018
		date 2018-05-05	rnd 3	type Standard	result 1	date 2018-06-23	rnd 3	type Standard	result 1
		Opponent Van Der Westhuizen, N (Nariema)				Opponent Bezuidenhout, H (Hilton)
3	5	Tournament ZFM Open Tournament 2019				Tournament ZFM School Trials 2019
		date 2019-03-02	rnd 2	type Standard	result 1	date 2019-04-27	rnd 1	type Standard	result 1
		Opponent Mankayi, A (Aphelele)				Opponent Rampie, A (Alexandro)

No games found.

#	Games	Start				End

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	Booysen ,V (Vuyani)	8	3	-106.2	8	3	-106.2	0	0	0	0	0	0
1	Booysen ,V (Vuyani)	8	1269.6	1163.3	8	1269.2	1163.3	0	0	0	0	0	0
2	Pietersen ,J (Jamien)	5	2	-85	5	2	-85	0	0	0	0	0	0
2	Pietersen ,J (Jamien)	5	1027.8	942.8	5	1048.4	942.8	0	0	0	0	0	0
3	Hanekom ,W (Driaan)	4	0	-425	4	0	-425	0	0	0	0	0	0
3	Hanekom ,W (Driaan)	4	1274.1	849.1	4	1294.2	849.1	0	0	0	0	0	0
4	Jonkers ,M (Moheimi Bradley)	3	3	425	3	3	425	0	0	0	0	0	0
4	Jonkers ,M (Moheimi Bradley)	3	1185.8	1610.8	3	1182.9	1610.8	0	0	0	0	0	0
5	Botes ,C (Carnelle)	2	2	425	2	2	425	0	0	0	0	0	0
5	Botes ,C (Carnelle)	2	862.2	1287.2	2	884.4	1287.2	0	0	0	0	0	0
6	Bezuidenhout ,H (Hilton)	2	2	425	2	2	425	0	0	0	0	0	0
6	Bezuidenhout ,H (Hilton)	2	1120.9	1545.9	2	1145.8	1545.9	0	0	0	0	0	0
7	Kortjass ,L (Lakheni)	2	2	425	2	2	425	0	0	0	0	0	0
7	Kortjass ,L (Lakheni)	2	1163.7	1588.7	2	1154.8	1588.7	0	0	0	0	0	0
8	Andries ,D (Devitihano)	2	1	0	2	1	0	0	0	0	0	0	0
8	Andries ,D (Devitihano)	2	1316.4	1316.4	2	1312.2	1316.4	0	0	0	0	0	0
9	Tseka ,G (Gerald)	2	2	425	2	2	425	0	0	0	0	0	0
9	Tseka ,G (Gerald)	2	1120.8	1545.8	2	1071.7	1545.8	0	0	0	0	0	0
10	Arends ,A (Algurnon)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Arends ,A (Algurnon)	2	1300.8	875.8	2	1321.4	875.8	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

Mienies, R (Rewaldo)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms