Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koch, A (Aidan)

Chess SA id

205075040

FIDE id

Date of birth

2005-12-21 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	820.9	821	526	526
Raw rating	820.9	821	526	526
Weighted rating	820.9	821	526	526
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	284.6	284.5	433.2	433.2
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	820.9 2024-02-01	821 2024-02-01	526 2024-02-01	526 2024-02-01
Highest weighted rating	820.9 2024-11-01	821 2024-11-01	526 2024-11-01	526 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	820.9	821	526	526
Analysis
Rating	820.9	821	526	526
Raw rating	820.9	821	526	526
Weighted rating	820.9	821	526
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	284.6	284.5	433.2	433.2
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	820.9	821	526	526
New weighted rating	820.9	821	526	526
New weighted performance	0	0	0	0
Temp new rating	820.9	821	526	526
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	820.9	821	526	526
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	43	43

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Eden (WEG)
Province	Western Cape (WC)
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	23	9.5	41.3	-73.9	906	832
Standard	23	9.5	41.3	-73.9	906	832
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	820.9	821	526	526
2025-09-01	820.9	821	526	526
2025-08-01	820.9	821	526	526
2025-07-01	820.9	821	526	526
2025-06-01	820.9	821	526	526
2025-05-01	820.9	821	526	526
2025-04-01	820.9	821	526	526
2025-03-01	820.9	821	526	526
2025-02-01	820.9	821	526	526
2025-01-01	820.9	821	526	526
2024-12-01	820.9	821	526	526
2024-11-01	820.9	821	526	526
2024-10-01	820.9	821	526	526
2024-09-01	820.9	821	526	526
2024-08-01	820.9	821	526	526
2024-07-01	820.9	821	526	526
2024-06-01	820.9	821	526	526
2024-08-01	820.9	821	526	526
2024-04-01	820.9	821	526	526
2024-03-01	820.9	821	526	526
2024-02-01	820.9	821	526	526
2024-01-01	820.9	821	526	526
2023-12-01	820.9	821	526	526
2023-11-01	820.9	821	526	526

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	George Trials 3 2019 (U16)	2019-02-23	2019-02-23	Standard	Eden (WEG)	5	3	1	Yes	Analysis
2	George Trials 2 2019 (U16)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	2	Yes	Analysis
3	George Trails 3 2018 (U14)	2018-02-24	2018-02-24	Standard	Eden (WEG)	5	5	2	Yes	Analysis
4	George Trails 2 2018 (U14)	2018-02-10	2018-02-10	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	George Trails 1 2018 (U14)	2018-01-27	2018-01-27	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament George Trials 2 2019				Tournament George Trials 2 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Van Tonder, K (Kiara)
2	2	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Lutsch, E (Emma)
3	1	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 2	type Standard	result 1	date 2019-02-23	rnd 2	type Standard	result 1
		Opponent Dreyer, W (Waldo)				Opponent Dreyer, W (Waldo)

#	Games	Start				End
1	2	Tournament George Trials 2 2019				Tournament George Trials 2 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Van Tonder, K (Kiara)
2	2	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Lutsch, E (Emma)
3	1	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 2	type Standard	result 1	date 2019-02-23	rnd 2	type Standard	result 1
		Opponent Dreyer, W (Waldo)				Opponent Dreyer, W (Waldo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament George Trials 2 2019				Tournament George Trials 2 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Van Tonder, K (Kiara)
2	2	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Lutsch, E (Emma)
3	1	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 2	type Standard	result 1	date 2019-02-23	rnd 2	type Standard	result 1
		Opponent Dreyer, W (Waldo)				Opponent Dreyer, W (Waldo)

#	Games	Start				End
1	2	Tournament George Trials 2 2019				Tournament George Trials 2 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Van Tonder, K (Kiara)
2	2	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 1
		Opponent Opperman, A (Aaron)				Opponent Lutsch, E (Emma)
3	1	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 2	type Standard	result 1	date 2019-02-23	rnd 2	type Standard	result 1
		Opponent Dreyer, W (Waldo)				Opponent Dreyer, W (Waldo)

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	Saal ,M (Migael)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Saal ,M (Migael)	2	1033.6	608.6	2	1041.4	608.6	0	0	0	0	0	0
2	Opperman ,A (Aaron)	2	2	425	2	2	425	0	0	0	0	0	0
2	Opperman ,A (Aaron)	2	589.8	1014.8	2	606.2	1014.8	0	0	0	0	0	0
3	Tre ,J (Juries)	2	2	425	2	2	425	0	0	0	0	0	0
3	Tre ,J (Juries)	2	1152.7	1577.7	2	1143	1577.7	0	0	0	0	0	0
4	Olivier ,J (Josh)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Olivier ,J (Josh)	1	507	82	1	508.4	82	0	0	0	0	0	0
5	Combrinck ,J (Jomari)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Combrinck ,J (Jomari)	1	500	500	1	500	500	0	0	0	0	0	0
6	Van Der Merwe ,P (Petrie)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Van Der Merwe ,P (Petrie)	1	982.5	557.5	1	979.6	557.5	0	0	0	0	0	0
7	Le Roux ,N (Nicolaas)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Le Roux ,N (Nicolaas)	1	739.2	314.2	1	739.2	314.2	0	0	0	0	0	0
8	Dreyer ,W (Waldo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Dreyer ,W (Waldo)	1	1119.3	1544.3	1	1102	1544.3	0	0	0	0	0	0
9	Muller ,J (Janke)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Muller ,J (Janke)	1	957.3	532.3	1	958.7	532.3	0	0	0	0	0	0
10	Van Zyl ,I (Izak)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Van Zyl ,I (Izak)	1	1136.9	711.9	1	1124	711.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Koch, A (Aidan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms