Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ma, C (Chengyan)

Chess SA id

108076744

FIDE id

Date of birth

2008-10-07 (U20)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1097.2	1042	1073.6	811.6
Raw rating	1097.2	1042	1073.6	811.6
Weighted rating	1055.4	980.4	1073.6	811.6
Weighted performance	565.9	0	0	0
Floor	597.2	542	573.6	500
K-factor	40	40	40	40
Min/Max rating change allowed	192	207.7	198.5	288.4
Highest rating	1200 2024-11-01	1200 2024-11-01	1270.1 2019-02-01	1200 2024-02-01
Highest raw rating	1097.2 2025-09-01	1042 2025-09-01	1073.6 2024-02-01	811.6 2024-02-01
Highest weighted rating	1035.9 2025-09-01	950 2025-09-01	1073.6 2024-11-01	811.6 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1270.1 2019-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1097.2	1042	1073.6	811.6
Analysis
Rating	1097.2	1042	1073.6	811.6
Raw rating	1097.2	1042	1073.6	811.6
Weighted rating	1055.4	980.4	1073.6
Weighted performance	565.9	0	0
K-factor	40	40	40	40
Floor	597.2	542	573.6	500
Max/Min rating change allowed	192	207.7	198.5	288.4
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	1097.2	1042	1073.6	811.6
New weighted rating	1059.6	986.7	1073.6	811.6
New weighted performance	0	0	0	0
Temp new rating	1097.2	1042	1073.6	811.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1097.2	1042	1073.6	811.6
New K-factor	40	40	40	40
New floor	597.2	542	573.6	500

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	3	3	0
	0	0	0
	0	0	0
	0	0	0
History	52	27	25

Games since
	Main 8	Standard 8		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	5	3	60	85	1279.2	1364.2
Standard	5	3	60	85	1279.2	1364.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	30	20	66.67	141.7	1088.6	1230.3
Standard	15	9	60	85	1036.8	1121.8
Rapid	15	11	73.33	198.3	1140.5	1338.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1097.2	1042	1073.6	811.6
2025-11-30	1097.2	1042	1073.6	811.6
2025-11-01	1097.2	1042	1073.6	811.6
2025-09-30	1097.2	1042	1073.6	811.6
2025-09-01	1097.2	1042	1073.6	811.6
2025-08-01	1031.3	944.9	1073.6	811.6
2025-07-01	1031.3	944.9	1073.6	811.6
2025-06-01	1031.3	944.9	1073.6	811.6
2025-05-01	1031.3	944.9	1073.6	811.6
2025-04-01	1031.3	944.9	1073.6	811.6
2025-03-01	1031.3	944.9	1073.6	811.6
2025-02-01	1031.3	944.9	1073.6	811.6
2025-01-01	1031.3	944.9	1073.6	811.6
2024-12-01	1031.3	944.9	1073.6	811.6
2024-11-01	1031.3	944.9	1073.6	811.6
2024-10-01	1031.3	944.9	1073.6	811.6
2024-09-01	1031.3	944.9	1073.6	811.6
2024-11-01	1031.3	944.9	1073.6	811.6
2024-07-01	1031.3	944.9	1073.6	811.6
2024-06-01	1031.3	944.9	1073.6	811.6
2024-05-01	1031.3	944.9	1073.6	811.6
2024-04-01	1031.3	944.9	1073.6	811.6
2024-03-01	1031.3	944.9	1073.6	811.6
2024-02-01	1017.7	919.3	1073.6	811.6

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	Cape Town Metro North Top Schools 2025 (U19)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
2	North District School Trials 2024 (U18 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	3	1	Yes	Analysis
3	2020 Welgemoed Chess Challenge (U14)	2020-02-29	2020-02-29	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
4	Welgemoed Chess Challenge 2019 (U12)	2019-02-23	2019-02-23	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
5	Welgemoed Chess Challenge 2018 (U12)	2018-02-24	2018-02-24	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
6	South African Junior Team Championships 2017 (U10B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Welgemoed Chess Challenge 2018				Tournament Welgemoed Chess Challenge 2019
		date 2018-02-24	rnd 4	type Rapid	result 1	date 2019-02-23	rnd 2	type Rapid	result 1
		Opponent Linegar, J (John)				Opponent Viljoen, W (Wynand)
2	4	Tournament South African Junior Team Championships 2017				Tournament Welgemoed Chess Challenge 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-24	rnd 2	type Rapid	result 1
		Opponent Botha, L (Lika)				Opponent Ntanjana, A (Asemahle)
3	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 0.5	date 2025-08-02	rnd 5	type Standard	result 0.5
		Opponent Jacobs, R (Robin)				Opponent Vermeulen, I (Inge)

#	Games	Start				End
1	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 0.5	date 2025-08-02	rnd 5	type Standard	result 0.5
		Opponent Jacobs, R (Robin)				Opponent Vermeulen, I (Inge)
2	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Rossouw, J (Johrne)				Opponent Aldum, C (Carla)
3	2	Tournament North District School Trials 2024				Tournament Cape Town Metro North Top Schools 2025
		date 2024-02-03	rnd 4	type Standard	result 1	date 2025-08-01	rnd 1	type Standard	result 1
		Opponent Van Der Merwe, J (Juandru)				Opponent Strauss, L (Levi)

#	Games	Start				End
1	4	Tournament Welgemoed Chess Challenge 2018				Tournament Welgemoed Chess Challenge 2019
		date 2018-02-24	rnd 4	type Rapid	result 1	date 2019-02-23	rnd 2	type Rapid	result 1
		Opponent Linegar, J (John)				Opponent Viljoen, W (Wynand)
2	3	Tournament Welgemoed Chess Challenge 2019				Tournament 2020 Welgemoed Chess Challenge
		date 2019-02-23	rnd 4	type Rapid	result 1	date 2020-02-29	rnd 1	type Rapid	result 1
		Opponent Booi, S (Sipho)				Opponent Fourie , P (Pierre)
3	2	Tournament 2020 Welgemoed Chess Challenge				Tournament 2020 Welgemoed Chess Challenge
		date 2020-02-29	rnd 3	type Rapid	result 1	date 2020-02-29	rnd 4	type Rapid	result 1
		Opponent Jika, Z (Zintle)				Opponent Solomon, M (Matteo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Welgemoed Chess Challenge 2018				Tournament Welgemoed Chess Challenge 2019
		date 2018-02-24	rnd 4	type Rapid	result 1	date 2019-02-23	rnd 2	type Rapid	result 1
		Opponent Linegar, J (John)				Opponent Viljoen, W (Wynand)
2	4	Tournament South African Junior Team Championships 2017				Tournament Welgemoed Chess Challenge 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-24	rnd 2	type Rapid	result 1
		Opponent Botha, L (Lika)				Opponent Ntanjana, A (Asemahle)
3	3	Tournament Welgemoed Chess Challenge 2019				Tournament 2020 Welgemoed Chess Challenge
		date 2019-02-23	rnd 4	type Rapid	result 1	date 2020-02-29	rnd 1	type Rapid	result 1
		Opponent Booi, S (Sipho)				Opponent Fourie , P (Pierre)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Rossouw, J (Johrne)				Opponent Aldum, C (Carla)
2	2	Tournament North District School Trials 2024				Tournament Cape Town Metro North Top Schools 2025
		date 2024-02-03	rnd 4	type Standard	result 1	date 2025-08-01	rnd 1	type Standard	result 1
		Opponent Van Der Merwe, J (Juandru)				Opponent Strauss, L (Levi)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Botha, L (Lika)				Opponent Louw, B (Benrico)

#	Games	Start				End
1	4	Tournament Welgemoed Chess Challenge 2018				Tournament Welgemoed Chess Challenge 2019
		date 2018-02-24	rnd 4	type Rapid	result 1	date 2019-02-23	rnd 2	type Rapid	result 1
		Opponent Linegar, J (John)				Opponent Viljoen, W (Wynand)
2	3	Tournament Welgemoed Chess Challenge 2019				Tournament 2020 Welgemoed Chess Challenge
		date 2019-02-23	rnd 4	type Rapid	result 1	date 2020-02-29	rnd 1	type Rapid	result 1
		Opponent Booi, S (Sipho)				Opponent Fourie , P (Pierre)
3	2	Tournament 2020 Welgemoed Chess Challenge				Tournament 2020 Welgemoed Chess Challenge
		date 2020-02-29	rnd 3	type Rapid	result 1	date 2020-02-29	rnd 4	type Rapid	result 1
		Opponent Jika, Z (Zintle)				Opponent Solomon, M (Matteo)

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	Aldum ,C (Carla)	1	1	425	1	1	425	0	0	0	0	0	0
1	Aldum ,C (Carla)	1	709.8	1134.8	1	709.8	1134.8	0	0	0	0	0	0
2	Jonkers ,T (Tristan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Jonkers ,T (Tristan)	1	1519.2	1094.2	1	1510.4	1094.2	0	0	0	0	0	0
3	Van Der Merwe ,J (Juandru)	1	1	425	1	1	425	0	0	0	0	0	0
3	Van Der Merwe ,J (Juandru)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Strauss ,L (Levi)	1	1	425	1	1	425	0	0	0	0	0	0
4	Strauss ,L (Levi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Willcox ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Willcox ,D (Daniel)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Van Loggerenberg ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Van Loggerenberg ,L (Logan)	1	618.6	193.6	1	618.6	193.6	0	0	0	0	0	0
7	Jacobs ,R (Robin)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Jacobs ,R (Robin)	1	1211.8	1211.8	1	1224.4	1211.8	0	0	0	0	0	0
8	Vermeulen ,I (Inge)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Vermeulen ,I (Inge)	1	1306.3	1306.3	1	1315.7	1306.3	0	0	0	0	0	0
9	Rossouw ,J (Johrne)	1	1	425	1	1	425	0	0	0	0	0	0
9	Rossouw ,J (Johrne)	1	657.4	1082.4	1	657.4	1082.4	0	0	0	0	0	0
10	Botha ,L (Lika)	1	1	425	1	1	425	0	0	0	0	0	0
10	Botha ,L (Lika)	1	719.6	1144.6	1	719.6	1144.6	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

Ma, C (Chengyan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms