Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koshy, A (Aaron)

Chess SA id

100054304

FIDE id

Date of birth

2000-03-21 (Adult)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-08-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1096.8	1116	949.6	949.6
Raw rating	1096.8	1116	949.6	949.6
Weighted rating	1096.8	1116	949.6	949.6
Weighted performance	71.8	0	0	0
Floor	596.8	616	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	192.1	186.9	236.9	236.9
Highest rating	1245 2018-02-01	1244.3 2018-02-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	1096.8 2024-03-01	1116 2024-03-01	949.6 2024-03-01	949.6 2024-03-01
Highest weighted rating	1096.8 2024-11-01	1116 2024-11-01	949.6 2024-11-01	949.6 2024-11-01
Highest weighted performance	1245 2018-02-01	1244.3 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1096.8	1116	949.6	949.6
Analysis
Rating	1096.8	1116	949.6	949.6
Raw rating	1096.8	1116	949.6	949.6
Weighted rating	1096.8	1116	949.6
Weighted performance	71.8	0	0
K-factor	40	40	40	40
Floor	596.8	616	500	500
Max/Min rating change allowed	192.1	186.9	236.9	236.9
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	1096.8	1116	949.6	949.6
New weighted rating	1096.8	1116	949.6	949.6
New weighted performance	71.4	0	0	0
Temp new rating	1096.8	1116	949.6	949.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1096.8	1116	949.6	949.6
New K-factor	40	40	40	40
New floor	596.8	616	500	500

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	115	101	14

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
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	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	16	12	75	212.5	997.4	1209.9
Standard	16	12	75	212.5	997.4	1209.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1096.8	1116	949.6	949.6
2025-09-01	1096.8	1116	949.6	949.6
2025-08-01	1096.8	1116	949.6	949.6
2025-07-01	1096.8	1116	949.6	949.6
2025-06-01	1096.8	1116	949.6	949.6
2025-05-01	1096.8	1116	949.6	949.6
2025-04-01	1096.8	1116	949.6	949.6
2025-03-01	1096.8	1116	949.6	949.6
2025-02-01	1096.8	1116	949.6	949.6
2025-01-01	1096.8	1116	949.6	949.6
2024-12-01	1096.8	1116	949.6	949.6
2024-11-01	1096.8	1116	949.6	949.6
2024-10-01	1096.8	1116	949.6	949.6
2024-09-01	1096.8	1116	949.6	949.6
2024-08-01	1096.8	1116	949.6	949.6
2024-07-01	1096.8	1116	949.6	949.6
2024-06-01	1096.8	1116	949.6	949.6
2024-08-01	1096.8	1116	949.6	949.6
2024-04-01	1096.8	1116	949.6	949.6
2024-03-01	1096.8	1116	949.6	949.6
2024-02-01	1096.8	1116	949.6	949.6
2024-01-01	1096.8	1116	949.6	949.6
2023-12-01	1096.8	1116	949.6	949.6
2023-11-01	1096.8	1116	949.6	949.6

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	East London School League 2018 (High School)	2018-08-18	2018-08-18	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
2	Grey College Inter Team Chess Tournament 2018 (A)	2018-02-23	2018-02-24	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
3	South African Junior Team Championships 2017 (U18B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	4.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament South African Junior Team Championships 2017				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-24	rnd 3	type Standard	result 0.5
		Opponent Mokoena, M (Mandla)				Opponent Pretorius, D (Declon)
2	4	Tournament East London School League 2018				Tournament East London School League 2018
		date 2018-08-18	rnd 2	type Standard	result 1	date 2018-08-18	rnd 5	type Standard	result 1
		Opponent Mackenzie, S (Skye)				Opponent Hoffman, T (Tristan)
3	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-05	rnd 3	type Standard	result 0.5
		Opponent Goleathe, L (Lethabo)				Opponent Thomas, N (Nevin)

#	Games	Start				End
1	5	Tournament South African Junior Team Championships 2017				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-24	rnd 3	type Standard	result 0.5
		Opponent Mokoena, M (Mandla)				Opponent Pretorius, D (Declon)
2	4	Tournament East London School League 2018				Tournament East London School League 2018
		date 2018-08-18	rnd 2	type Standard	result 1	date 2018-08-18	rnd 5	type Standard	result 1
		Opponent Mackenzie, S (Skye)				Opponent Hoffman, T (Tristan)
3	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-05	rnd 3	type Standard	result 0.5
		Opponent Goleathe, L (Lethabo)				Opponent Thomas, N (Nevin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament East London School League 2018				Tournament East London School League 2018
		date 2018-08-18	rnd 2	type Standard	result 1	date 2018-08-18	rnd 5	type Standard	result 1
		Opponent Mackenzie, S (Skye)				Opponent Hoffman, T (Tristan)
2	4	Tournament South African Junior Team Championships 2017				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Mokoena, M (Mandla)				Opponent Tsoeu, K (Kamohelo)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-04	rnd 2	type Standard	result 1
		Opponent Goleathe, L (Lethabo)				Opponent Malgas, C (Cheslin)

#	Games	Start				End
1	4	Tournament East London School League 2018				Tournament East London School League 2018
		date 2018-08-18	rnd 2	type Standard	result 1	date 2018-08-18	rnd 5	type Standard	result 1
		Opponent Mackenzie, S (Skye)				Opponent Hoffman, T (Tristan)
2	4	Tournament South African Junior Team Championships 2017				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-01-07	rnd 6	type Standard	result 1	date 2018-02-23	rnd 2	type Standard	result 1
		Opponent Mokoena, M (Mandla)				Opponent Tsoeu, K (Kamohelo)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-04	rnd 2	type Standard	result 1
		Opponent Goleathe, L (Lethabo)				Opponent Malgas, C (Cheslin)

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	Wu ,S (Sunny)	1	1	425	1	1	425	0	0	0	0	0	0
1	Wu ,S (Sunny)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Austin ,B (Billy-James)	1	1	425	1	1	425	0	0	0	0	0	0
2	Austin ,B (Billy-James)	1	716	1141	1	716	1141	0	0	0	0	0	0
3	Thomas ,N (Nevin)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Thomas ,N (Nevin)	1	1049	1049	1	1049	1049	0	0	0	0	0	0
4	Goncalves Dias ,A (Amika)	1	1	425	1	1	425	0	0	0	0	0	0
4	Goncalves Dias ,A (Amika)	1	1228.8	1653.8	1	1224.6	1653.8	0	0	0	0	0	0
5	Janse Van Rensburg ,J (John)	1	1	425	1	1	425	0	0	0	0	0	0
5	Janse Van Rensburg ,J (John)	1	1025	1450	1	1001.6	1450	0	0	0	0	0	0
6	Goleathe ,L (Lethabo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Goleathe ,L (Lethabo)	1	512	937	1	512	937	0	0	0	0	0	0
7	Mackenzie ,S (Skye)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mackenzie ,S (Skye)	1	873.1	1298.1	1	884.4	1298.1	0	0	0	0	0	0
8	Pupuma ,S (Spumezo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Pupuma ,S (Spumezo)	1	993.7	1418.7	1	992.2	1418.7	0	0	0	0	0	0
9	Mccallum ,H (Hudson)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mccallum ,H (Hudson)	1	896	471	1	896	471	0	0	0	0	0	0
10	Pather ,Z (Zoe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Pather ,Z (Zoe)	1	957.3	532.3	1	955.6	532.3	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

Koshy, A (Aaron)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms