Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Jager, A (Arno)

Chess SA id

1100108148

FIDE id

Date of birth

2010-04-08 (U18)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-09-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1308.1	1321.6	1200	1200
Raw rating	1308.1	1321.6	1200	1200
Weighted rating	1308.1	1321.6	1200	1200
Weighted performance	219.8	219.6	0	0
Floor	808.1	829.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	142.1	139.4	165.8	165.8
Highest rating	1446 2019-01-01	1447.5 2019-01-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1308.1 2024-02-01	1329.9 2019-04-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1308.1 2025-02-01	1329.9 2021-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1446 2019-01-01	1447.5 2019-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1308.1	1321.6	1200	1200
Analysis
Rating	1308.1	1321.6	1200	1200
Raw rating	1308.1	1321.6	1200	1200
Weighted rating	1308.1	1321.6	1200
Weighted performance	219.8	219.6	0
K-factor	36	36	36	36
Floor	808.1	829.9	700	700
Max/Min rating change allowed	142.1	139.4	165.8	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	1308.1	1321.6	1200	1200
New weighted rating	1308.1	1321.6	1200	1200
New weighted performance	211	210.8	0	0
Temp new rating	1308.1	1321.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1308.1	1321.6	1200	1200
New K-factor	36	36	36	36
New floor	808.1	829.9	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	25	25

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	25	17.5	70	170	1205.4	1375.4
Standard	25	17.5	70	170	1205.4	1375.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1308.1	1321.6	1200	1200
2025-11-30	1308.1	1321.6	1200	1200
2025-11-01	1308.1	1321.6	1200	1200
2025-09-30	1308.1	1321.6	1200	1200
2025-09-01	1308.1	1321.6	1200	1200
2025-08-01	1308.1	1321.6	1200	1200
2025-07-01	1308.1	1321.6	1200	1200
2025-06-01	1308.1	1321.6	1200	1200
2025-05-01	1308.1	1321.6	1200	1200
2025-04-01	1308.1	1321.6	1200	1200
2025-03-01	1308.1	1321.6	1200	1200
2025-02-01	1308.1	1321.6	1200	1200
2025-01-01	1308.1	1321.6	1200	1200
2024-12-01	1308.1	1321.6	1200	1200
2024-11-01	1308.1	1321.6	1200	1200
2024-10-01	1308.1	1321.6	1200	1200
2024-09-01	1308.1	1321.6	1200	1200
2024-11-01	1308.1	1321.6	1200	1200
2024-07-01	1308.1	1321.6	1200	1200
2024-06-01	1308.1	1321.6	1200	1200
2024-05-01	1308.1	1321.6	1200	1200
2024-04-01	1308.1	1321.6	1200	1200
2024-03-01	1308.1	1321.6	1200	1200
2024-02-01	1308.1	1321.6	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	Western Cape Top Schools 2019 (U9 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Eden Trials 1 2019 (U10 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	George Trials 3 2019 (U10)	2019-02-23	2019-02-23	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
4	George Trials 2 2019 (U10)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
5	George Trials 1 2019 (U10)	2019-01-26	2019-01-26	Standard	Eden (WEG)	5	5	4	Yes	Analysis

#	Games	Start				End
1	6	Tournament George Trials 1 2019				Tournament George Trials 2 2019
		date 2019-01-26	rnd 4	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Roodt, R (Ruben)				Opponent Van Niekerk, N (Nina)
2	3	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Kruger, S (Simon)				Opponent Heesen, J (Jayden)
3	2	Tournament Eden Trials 1 2019				Tournament Eden Trials 1 2019
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-03-02	rnd 4	type Standard	result 1
		Opponent Langenhoven, L (Lee-Ann)				Opponent Pretorius, N (Nico)

#	Games	Start				End
1	6	Tournament George Trials 1 2019				Tournament George Trials 2 2019
		date 2019-01-26	rnd 4	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Roodt, R (Ruben)				Opponent Van Niekerk, N (Nina)
2	3	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Kruger, S (Simon)				Opponent Heesen, J (Jayden)
3	2	Tournament Eden Trials 1 2019				Tournament Eden Trials 1 2019
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-03-02	rnd 4	type Standard	result 1
		Opponent Langenhoven, L (Lee-Ann)				Opponent Pretorius, N (Nico)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament George Trials 1 2019				Tournament George Trials 2 2019
		date 2019-01-26	rnd 4	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Roodt, R (Ruben)				Opponent Van Niekerk, N (Nina)
2	3	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Kruger, S (Simon)				Opponent Heesen, J (Jayden)
3	2	Tournament Eden Trials 1 2019				Tournament Eden Trials 1 2019
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-03-02	rnd 4	type Standard	result 1
		Opponent Langenhoven, L (Lee-Ann)				Opponent Pretorius, N (Nico)

#	Games	Start				End
1	6	Tournament George Trials 1 2019				Tournament George Trials 2 2019
		date 2019-01-26	rnd 4	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Roodt, R (Ruben)				Opponent Van Niekerk, N (Nina)
2	3	Tournament George Trials 3 2019				Tournament George Trials 3 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Kruger, S (Simon)				Opponent Heesen, J (Jayden)
3	2	Tournament Eden Trials 1 2019				Tournament Eden Trials 1 2019
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-03-02	rnd 4	type Standard	result 1
		Opponent Langenhoven, L (Lee-Ann)				Opponent Pretorius, N (Nico)

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	Petersen ,S (Shenwin)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Petersen ,S (Shenwin)	2	1292.4	867.4	2	1312.9	867.4	0	0	0	0	0	0
2	Godbeer ,M (Michael)	2	1	0	2	1	0	0	0	0	0	0	0
2	Godbeer ,M (Michael)	2	1207.7	1207.7	2	1209.2	1207.7	0	0	0	0	0	0
3	Van Niekerk ,N (Nina)	2	2	425	2	2	425	0	0	0	0	0	0
3	Van Niekerk ,N (Nina)	2	1214.3	1639.3	2	1217.4	1639.3	0	0	0	0	0	0
4	Pretorius ,N (Nico)	2	1	0	2	1	0	0	0	0	0	0	0
4	Pretorius ,N (Nico)	2	1259.3	1259.3	2	1268.6	1259.3	0	0	0	0	0	0
5	Adams ,J (Jay-D)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Adams ,J (Jay-D)	1	1072.5	1072.5	1	1200	1072.5	0	0	0	0	0	0
6	Herholdt ,M (Markus)	1	1	425	1	1	425	0	0	0	0	0	0
6	Herholdt ,M (Markus)	1	1214.3	1639.3	1	1216.8	1639.3	0	0	0	0	0	0
7	Langenhoven ,L (Lee-Ann)	1	1	425	1	1	425	0	0	0	0	0	0
7	Langenhoven ,L (Lee-Ann)	1	1200.7	1625.7	1	1200.4	1625.7	0	0	0	0	0	0
8	Opperman ,A (Amy)	1	1	425	1	1	425	0	0	0	0	0	0
8	Opperman ,A (Amy)	1	1210.6	1635.6	1	1214.8	1635.6	0	0	0	0	0	0
9	Lappeman ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Lappeman ,L (Liam)	1	1206.5	781.5	1	1162.8	781.5	0	0	0	0	0	0
10	Vos ,M (Mieke)	1	1	425	1	1	425	0	0	0	0	0	0
10	Vos ,M (Mieke)	1	1217.9	1642.9	1	1221.6	1642.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

De Jager, A (Arno)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms