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	0	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	0	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	0	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
2025-11-01	1096.8	1116	949.6	949.6
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
2024-09-01	1096.8	1116	949.6	949.6
2024-05-01	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

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