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

Item	Main	Standard	Rapid	Blitz
Rating	1241.6	1199.6	1267.2	1200
Raw rating	1241.6	1199.4	1267.2	1200
Weighted rating	1215.1	1199.6	1224.7	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	1199.5	1267.2	1200
Analysis
Rating	1241.6	1199.6	1267.2	1200
Raw rating	1241.6	1199.4	1267.2	1200
Weighted rating	1215.1	1199.6	1224.7
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	1217.7	1199.5	1228.9	1200
New weighted performance	0	0	0	0
Temp new rating	1241.6	1199.5	1267.2	1200
Temp new rating +/-	0	-0	0	0
Final new rating +/-	0	-0	0	0
New rating	1241.6	1199.5	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
2026-01-01	1241.6	1199.4	1267.2	1200
2025-11-30	1241.6	1199.4	1267.2	1200
2025-11-01	1241.6	1199.4	1267.2	1200
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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	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

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	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	Mhlomi ,A (Ahlumile)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mhlomi ,A (Ahlumile)	1	1198.4	1623.4	1	1200	1623.4	0	0	0	0	0	0
6	Mendonca ,N (Nelita)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mendonca ,N (Nelita)	1	1311.8	886.8	1	1307.8	886.8	0	0	0	0	0	0
7	Els ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Els ,L (Luan)	1	1411.3	986.3	1	1403.1	986.3	0	0	0	0	0	0
8	Masenya ,T (Thabitha)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Masenya ,T (Thabitha)	1	1149.5	724.5	1	1138.5	724.5	0	0	0	0	0	0
9	Zhu ,R (Ryan Yuancheng)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Zhu ,R (Ryan Yuancheng)	1	1461.6	1036.6	1	1471.3	1036.6	0	0	0	0	0	0
10	Rizvi ,Z (Zara)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Rizvi ,Z (Zara)	1	1476.5	1051.5	1	1465.3	1051.5	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

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