Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coulson, A (Alannah)

Chess SA id

2130148605

FIDE id

Date of birth

2013-03-25 (U14)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-01-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1195.6	1206.3	1200	1120.7
Raw rating	1195.6	1206.3	1200	1120.7
Weighted rating	1195.5	1206	1200	1119.6
Weighted performance	848.6	899.8	0	0
Floor	707.6	712.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	166.8	164.3	165.8	185.6
Highest rating	1258.3 2023-01-01	1251.7 2023-01-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1207.6 2023-02-01	1212.3 2023-08-01	1200 2024-03-01	1200 2019-12-01
Highest weighted rating	1207.6 2023-03-01	1212.3 2025-06-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1258.3 2023-01-01	1251.7 2023-01-01	1200 2024-03-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1195.6	1206.3	1200	1120.7
Analysis
Rating	1195.6	1206.3	1200	1120.7
Raw rating	1195.6	1206.3	1200	1120.7
Weighted rating	1195.5	1206	1200
Weighted performance	848.6	899.8	0
K-factor	36	36	36	36
Floor	707.6	712.3	700	700
Max/Min rating change allowed	166.8	164.3	165.8	185.6
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	1195.6	1206.3	1200	1120.7
New weighted rating	1195.4	1206	1200	1119.8
New weighted performance	848.2	899.4	0	0
Temp new rating	1195.6	1206.3	1200	1120.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1195.6	1206.3	1200	1120.7
New K-factor	36	36	36	36
New floor	707.6	712.3	700	700

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	5	5	0
	36	30	6
	0	0	0
	0	0	0
History	41	35	6

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	41	18.5	45.12	-41.5	1202.4	1160.9
Standard	35	16.5	47.14	-24.3	1209.8	1185.5
Rapid	0	0	0	0	0	0
Blitz	6	2	33.33	-141.7	1159.1	1017.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1195.6	1206.3	1200	1120.7
2025-09-01	1195.6	1206.3	1200	1120.7
2025-08-01	1195.6	1206.3	1200	1120.7
2025-07-01	1195.6	1206.3	1200	1120.7
2025-06-01	1195.6	1206.3	1200	1120.7
2025-05-01	1195.6	1206.3	1200	1120.7
2025-04-01	1195.5	1206.1	1200	1120.7
2025-03-01	1195.3	1205.8	1200	1120.7
2025-02-01	1195.1	1205.5	1200	1120.7
2025-01-01	1195.1	1205.5	1200	1118
2024-12-01	1195.1	1205.5	1200	1118
2024-11-01	1195.1	1205.5	1200	1118
2024-10-01	1195.1	1205.5	1200	1118
2024-09-01	1195.1	1205.5	1200	1118
2024-08-01	1195.1	1205.5	1200	1118
2024-07-01	1195.1	1205.5	1200	1118
2024-06-01	1195.1	1205.5	1200	1118
2024-08-01	1195.1	1205.5	1200	1118
2024-04-01	1195.1	1205.5	1200	1118
2024-03-01	1195.1	1205.5	1200	1118
2024-02-01	1195.1	1205.5	1200	1118
2024-01-01	1199.5	1212.3	1200	1118
2023-12-01	1199.5	1212.3	1200	1118
2023-11-01	1199.5	1212.3	1200	1118

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	2024 Gauteng Inter-Region Chess Championship (U12C)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	ThinkChess 6 July 2023	2023-07-06	2023-07-06	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
3	JMC Trinity Little Falls 2023 (D)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
4	JMC - The Higher Ground Restaurant 2nd Blitz Event 2023	2023-07-30	2023-07-30	Blitz	Johannesburg Metro (GJM)	7	6	2	Yes	Analysis
5	JNW Open - Trinityhouse Little Falls 2023 (C)	2023-06-24	2023-06-24	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	ThinkChess Tournament 6 May 2023	2023-05-06	2023-05-06	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
7	JMC 1 St Peters 2023 (D)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
8	Thinkchess Tournament 2023 (Group 2)	2023-01-28	2023-01-28	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament ThinkChess 6 July 2023				Tournament ThinkChess 6 July 2023
		date 2023-07-06	rnd 2	type Standard	result 1	date 2023-07-06	rnd 3	type Standard	result 1
		Opponent Bazhko, M (Mikhail)				Opponent Benney, J (Joshua)
2	2	Tournament JNW Open - Trinityhouse Little Falls 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-07-02	rnd 1	type Standard	result 1
		Opponent Wessels, Z (Zacree)				Opponent Dlamini, M (Mnotfo)
3	2	Tournament Thinkchess Tournament 2023				Tournament Thinkchess Tournament 2023
		date 2023-01-28	rnd 1	type Standard	result 1	date 2023-01-28	rnd 2	type Standard	result 1
		Opponent Subroyen, J (Jeevesh)				Opponent Saretzki, H (Hallein)

#	Games	Start				End
1	2	Tournament ThinkChess 6 July 2023				Tournament ThinkChess 6 July 2023
		date 2023-07-06	rnd 2	type Standard	result 1	date 2023-07-06	rnd 3	type Standard	result 1
		Opponent Bazhko, M (Mikhail)				Opponent Benney, J (Joshua)
2	2	Tournament JNW Open - Trinityhouse Little Falls 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-07-02	rnd 1	type Standard	result 1
		Opponent Wessels, Z (Zacree)				Opponent Dlamini, M (Mnotfo)
3	2	Tournament Thinkchess Tournament 2023				Tournament Thinkchess Tournament 2023
		date 2023-01-28	rnd 1	type Standard	result 1	date 2023-01-28	rnd 2	type Standard	result 1
		Opponent Subroyen, J (Jeevesh)				Opponent Saretzki, H (Hallein)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 7	type Blitz	result 1	date 2023-07-30	rnd 7	type Blitz	result 1
		Opponent Parag, A (Aadya)				Opponent Parag, A (Aadya)
2	1	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 3	type Blitz	result 1	date 2023-07-30	rnd 3	type Blitz	result 1
		Opponent Chinoruma, M (Maka)				Opponent Chinoruma, M (Maka)

#	Games	Start				End
1	2	Tournament ThinkChess 6 July 2023				Tournament ThinkChess 6 July 2023
		date 2023-07-06	rnd 2	type Standard	result 1	date 2023-07-06	rnd 3	type Standard	result 1
		Opponent Bazhko, M (Mikhail)				Opponent Benney, J (Joshua)
2	2	Tournament JNW Open - Trinityhouse Little Falls 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-07-02	rnd 1	type Standard	result 1
		Opponent Wessels, Z (Zacree)				Opponent Dlamini, M (Mnotfo)
3	2	Tournament Thinkchess Tournament 2023				Tournament Thinkchess Tournament 2023
		date 2023-01-28	rnd 1	type Standard	result 1	date 2023-01-28	rnd 2	type Standard	result 1
		Opponent Subroyen, J (Jeevesh)				Opponent Saretzki, H (Hallein)

#	Games	Start				End
1	2	Tournament ThinkChess 6 July 2023				Tournament ThinkChess 6 July 2023
		date 2023-07-06	rnd 2	type Standard	result 1	date 2023-07-06	rnd 3	type Standard	result 1
		Opponent Bazhko, M (Mikhail)				Opponent Benney, J (Joshua)
2	2	Tournament JNW Open - Trinityhouse Little Falls 2023				Tournament JMC Trinity Little Falls 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-07-02	rnd 1	type Standard	result 1
		Opponent Wessels, Z (Zacree)				Opponent Dlamini, M (Mnotfo)
3	2	Tournament Thinkchess Tournament 2023				Tournament Thinkchess Tournament 2023
		date 2023-01-28	rnd 1	type Standard	result 1	date 2023-01-28	rnd 2	type Standard	result 1
		Opponent Subroyen, J (Jeevesh)				Opponent Saretzki, H (Hallein)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 7	type Blitz	result 1	date 2023-07-30	rnd 7	type Blitz	result 1
		Opponent Parag, A (Aadya)				Opponent Parag, A (Aadya)
2	1	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 3	type Blitz	result 1	date 2023-07-30	rnd 3	type Blitz	result 1
		Opponent Chinoruma, M (Maka)				Opponent Chinoruma, M (Maka)

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	Burger ,B (Benjamin)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Burger ,B (Benjamin)	2	1224.4	799.4	2	1229.2	799.4	0	0	0	0	0	0
2	Subroyen ,J (Jeevesh)	1	1	425	1	1	425	0	0	0	0	0	0
2	Subroyen ,J (Jeevesh)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Fokker ,CD (Christiaan Dirk)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Fokker ,CD (Christiaan Dirk)	1	1293.3	868.3	1	1293.1	868.3	0	0	0	0	0	0
4	Booi ,L (Lungaka)	1	1	425	1	1	425	0	0	0	0	0	0
4	Booi ,L (Lungaka)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Van Der Walt ,P (Phillip)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Der Walt ,P (Phillip)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Prince ,A (Aaron)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Prince ,A (Aaron)	1	1301.3	876.3	1	1318.2	876.3	0	0	0	0	0	0
7	Grice ,S (Simon)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Grice ,S (Simon)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Botha ,S (Sebastian)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Botha ,S (Sebastian)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Smith ,C (Caleb)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Smith ,C (Caleb)	1	1170.2	745.2	1	1153.6	745.2	0	0	0	0	0	0
10	Mohonwe ,LK (Lebone Kgosi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mohonwe ,LK (Lebone Kgosi)	1	1125.8	1550.8	1	1109.2	1550.8	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

Coulson, A (Alannah)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms