Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cheng, A (Abigail)

Chess SA id

2150319313

FIDE id

Date of birth

2015-12-15 (U12)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1117.4

Item	Main	Standard	Rapid	Blitz
Rating	1241.6	1199.6	1267.2	1200
Raw rating	1241.6	1199.4	1267.2	1200
Weighted rating	1206.3	1199.6	1210.5	1200
Weighted performance	0	0	0	0
Floor	741.6	699.9	767.2	700
K-factor	36	40	36	36
Min/Max rating change allowed	156.3	165.9	150.7	165.8
Highest rating	1241.6 2025-09-01	1199.9 2025-04-14	1267.2 2025-09-01	1200 2025-05-05
Highest raw rating	1241.6 2025-09-01	1199.9 2025-04-14	1267.2 2025-09-01	1200 2025-05-05
Highest weighted rating	1203.1 2025-09-01	1199.9 2025-04-14	1205.4 2025-09-01	1200 2025-05-05
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	-0	0	0
New rating	1241.6	1199.6	1267.2	1200
Analysis
Rating	1241.6	1199.6	1267.2	1200
Raw rating	1241.6	1199.4	1267.2	1200
Weighted rating	1206.3	1199.6	1210.5
Weighted performance	0	0	0
K-factor	36	40	36	36
Floor	741.6	699.9	767.2	700
Max/Min rating change allowed	156.3	165.9	150.7	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	1241.6	1199.4	1267.2	1200
New weighted rating	1209.4	1199.6	1215.5	1200
New weighted performance	0	0	0	0
Temp new rating	1241.6	1199.6	1267.2	1200
Temp new rating +/-	0	-0	0	0
Final new rating +/-	0	-0	0	0
New rating	1241.6	1199.6	1267.2	1200
New K-factor	36	40	36	36
New floor	741.6	699.9	767.2	700

Item	Main	Standard	Rapid
	0	0	0
	23	15	8
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	23	15	8

Games since
	Main 23	Standard 15		Rapid 8		Blitz 0
Gender	Female
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	23	11	47.83	-18.5	1247.7	1229.2
Standard	15	5	33.33	-141.7	1283.5	1141.8
Rapid	8	6	75	212.5	1180.6	1393.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	23	11	47.83	-18.5	1247.7	1229.2
Standard	15	5	33.33	-141.7	1283.5	1141.8
Rapid	8	6	75	212.5	1180.6	1393.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1241.6	1199.4	1267.2	1200
2025-09-01	1241.6	1199.4	1267.2	1200
2025-08-01	1199.6	1199.4	1200	1200
2025-07-01	1199.6	1199.5	1200	1200
2025-06-01	1197.8	1197.2	1200	1200
2025-05-01	1199.7	1199.5	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
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	Benoni Clusters Team 2025 (U13 Girls B)	2025-08-09	2025-08-09	Rapid	Ekurhuleni (GE)	3	3	1	Yes	Analysis
2	Benoni Primary School Cluster Teams 2025 (U11B)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	South African Open 2025 (U12 Girls)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
5	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Benoni Clusters Team 2025 (U13 Girls B)	2025-08-09	2025-08-09	Rapid	Ekurhuleni (GE)	3	3	1	Yes	Analysis
2	Benoni Primary School Cluster Teams 2025 (U11B)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	South African Open 2025 (U12 Girls)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
5	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament South African Open 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-07-04	rnd 4	type Standard	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Molefe, T (Tebogo)				Opponent Mahanjana, T (Tsepang)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 0.5
		Opponent Phahlamohlaka, L (Lesego)				Opponent Tsosane, B (Bokang)
3	1	Tournament Benoni Clusters Team 2025				Tournament Benoni Clusters Team 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Sithole, R (Refilwe Nonhlanhla)				Opponent Sithole, R (Refilwe Nonhlanhla)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-04	rnd 4	type Standard	result 1	date 2025-07-05	rnd 5	type Standard	result 1
		Opponent Molefe, T (Tebogo)				Opponent Mhlomi, A (Ahlumile)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 0.5
		Opponent Phahlamohlaka, L (Lesego)				Opponent Tsosane, B (Bokang)
3	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 3	type Standard	result 1
		Opponent Cronje, M (Marlene)				Opponent Cronje, M (Marlene)

#	Games	Start				End
1	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Du Plessis, S (Sion)				Opponent Mahanjana, T (Tsepang)
2	1	Tournament Benoni Clusters Team 2025				Tournament Benoni Clusters Team 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Sithole, R (Refilwe Nonhlanhla)				Opponent Sithole, R (Refilwe Nonhlanhla)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament South African Open 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-07-04	rnd 4	type Standard	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Molefe, T (Tebogo)				Opponent Mahanjana, T (Tsepang)
2	1	Tournament Benoni Clusters Team 2025				Tournament Benoni Clusters Team 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Sithole, R (Refilwe Nonhlanhla)				Opponent Sithole, R (Refilwe Nonhlanhla)
3	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 3	type Standard	result 1
		Opponent Cronje, M (Marlene)				Opponent Cronje, M (Marlene)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-04	rnd 4	type Standard	result 1	date 2025-07-05	rnd 5	type Standard	result 1
		Opponent Molefe, T (Tebogo)				Opponent Mhlomi, A (Ahlumile)
2	1	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 3	type Standard	result 1
		Opponent Cronje, M (Marlene)				Opponent Cronje, M (Marlene)
3	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Phahlamohlaka, L (Lesego)				Opponent Phahlamohlaka, L (Lesego)

#	Games	Start				End
1	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Du Plessis, S (Sion)				Opponent Mahanjana, T (Tsepang)
2	1	Tournament Benoni Clusters Team 2025				Tournament Benoni Clusters Team 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Sithole, R (Refilwe Nonhlanhla)				Opponent Sithole, R (Refilwe Nonhlanhla)

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	Sithole ,R (Refilwe Nonhlanhla)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
1	Sithole ,R (Refilwe Nonhlanhla)	3	1168.3	1026.6	0	0	0	3	1200	1026.6	0	0	0
2	Pedreiro ,O (Orlando)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Pedreiro ,O (Orlando)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Cronje ,M (Marlene)	1	1	425	1	1	425	0	0	0	0	0	0
3	Cronje ,M (Marlene)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Phahlamohlaka ,L (Lesego)	1	1	425	1	1	425	0	0	0	0	0	0
4	Phahlamohlaka ,L (Lesego)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Mendonca ,N (Nelita)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mendonca ,N (Nelita)	1	1311.8	886.8	1	1307.8	886.8	0	0	0	0	0	0
6	Mhlomi ,A (Ahlumile)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mhlomi ,A (Ahlumile)	1	1198.4	1623.4	1	1200	1623.4	0	0	0	0	0	0
7	Visagie ,A (Arina)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Visagie ,A (Arina)	1	1488.2	1063.2	1	1468.7	1063.2	0	0	0	0	0	0
8	Els ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Els ,L (Luan)	1	1411.3	986.3	1	1403.1	986.3	0	0	0	0	0	0
9	Masenya ,T (Thabitha)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Masenya ,T (Thabitha)	1	1149.5	724.5	1	1138.5	724.5	0	0	0	0	0	0
10	Zhu ,R (Ryan Yuancheng)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Zhu ,R (Ryan Yuancheng)	1	1461.6	1036.6	1	1471.3	1036.6	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

Cheng, A (Abigail)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms