Chess South Africa Ratings Database

PLAYER PAGE

Personal

Hartzenberg, A (Allister)

Chess SA id

1140310973

FIDE id

Date of birth

2014-07-03 (U12)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

12.5

Junior GPX Points

1184.8

Item	Main	Standard	Rapid	Blitz
Rating	1246	1233.3	1249.9	1200
Raw rating	1246	1233.3	1249.9	1200
Weighted rating	1209.6	1209.5	1215.8	1200
Weighted performance	0	0	0	0
Floor	746	733.3	749.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.3	158.1	154.4	165.8
Highest rating	1246 2025-09-30	1233.3 2025-09-01	1270.4 2024-09-01	1200 2024-10-01
Highest raw rating	1246 2025-09-30	1233.3 2025-09-01	1249.9 2025-09-30	1200 2024-10-01
Highest weighted rating	1209.6 2025-09-30	1207.2 2025-09-01	1216.8 2024-10-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-10-01	1270.4 2024-09-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1246	1233.3	1249.9	1200
Analysis
Rating	1246	1233.3	1249.9	1200
Raw rating	1246	1233.3	1249.9	1200
Weighted rating	1209.6	1209.5	1215.8
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	746	733.3	749.9	700
Max/Min rating change allowed	155.3	158.1	154.4	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	1246	1233.3	1249.9	1200
New weighted rating	1212.9	1211.8	1218.9	1200
New weighted performance	0	0	0	0
Temp new rating	1246	1233.3	1249.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1246	1233.3	1249.9	1200
New K-factor	36	36	36	36
New floor	746	733.3	749.9	700

Item	Main	Standard	Rapid
	0	0	0
	16	10	6
	6	0	6
	0	0	0
	0	0	0
	0	0	0
History	22	10	12

Games since
	Main 22	Standard 10		Rapid 12		Blitz 0
Gender	Male
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	16	10	62.5	106.2	1205.6	1311.9
Standard	10	6	60	85	1202.2	1287.2
Rapid	6	4	66.67	141.7	1211.4	1353.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	22	13.5	61.36	96.6	1187.3	1283.9
Standard	10	6	60	85	1202.2	1287.2
Rapid	12	7.5	62.5	106.2	1174.8	1281.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1246	1233.3	1249.9	1200
2025-09-01	1229.3	1233.3	1216.8	1200
2025-08-01	1218.1	1220.6	1216.8	1200
2025-07-01	1218.1	1220.6	1216.8	1200
2025-06-01	1218.1	1220.6	1216.8	1200
2025-05-01	1199.9	1200	1216.8	1200
2025-04-01	1199.9	1200	1216.8	1200
2025-03-01	1199.9	1200	1216.8	1200
2025-02-01	1199.9	1200	1216.8	1200
2025-01-01	1199.6	1200	1216.8	1200
2024-12-01	1199.6	1200	1216.8	1200
2024-11-01	1199.6	1200	1216.8	1200
2024-10-01	1199.6	1200	1216.8	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tsogo Sun Moves For Life Learners Tournament 2025 (U11)	2025-08-30	2025-08-30	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U11 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Mossel Bay Schools Trials 2 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tsogo Sun Moves For Life Learners Tournament 2025 (U11)	2025-08-30	2025-08-30	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U11 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Mossel Bay Schools Trials 2 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	3	Yes	Analysis
4	Tsogo Sun Moves For Life Learners Tournament 2024 (U11)	2024-08-31	2024-08-31	Rapid	Eden (WEG)	6	6	3.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Riddles, K (Kealin)				Opponent Islam, Y (Yusuf Abdullah)
2	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Oraai, L (Lee-Jay)				Opponent Taylor, D (Devago)
3	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Prins, L (Luthando)				Opponent November, A (Aiden)

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Riddles, K (Kealin)				Opponent Islam, Y (Yusuf Abdullah)
2	2	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Kibido, S (Sanda)				Opponent Tshefu, E (Ethan)
3	1	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Taylor, D (Devago)				Opponent Taylor, D (Devago)

#	Games	Start				End
1	4	Tournament Tsogo Sun Moves For Life Learners Tournament 2024				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2024-08-31	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Heunis, J (Joshua)				Opponent November, A (Aiden)
2	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Oraai, L (Lee-Jay)				Opponent Taylor, D (Devago)
3	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2024				Tournament Tsogo Sun Moves For Life Learners Tournament 2024
		date 2024-08-31	rnd 2	type Rapid	result 0.5	date 2024-08-31	rnd 3	type Rapid	result 1
		Opponent Lottering, D (Deanley)				Opponent Miller, J (Jahwan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Riddles, K (Kealin)				Opponent Islam, Y (Yusuf Abdullah)
2	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Oraai, L (Lee-Jay)				Opponent Taylor, D (Devago)
3	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Prins, L (Luthando)				Opponent November, A (Aiden)

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Riddles, K (Kealin)				Opponent Islam, Y (Yusuf Abdullah)
2	2	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Kibido, S (Sanda)				Opponent Tshefu, E (Ethan)
3	1	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Taylor, D (Devago)				Opponent Taylor, D (Devago)

#	Games	Start				End
1	4	Tournament Tsogo Sun Moves For Life Learners Tournament 2024				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2024-08-31	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Heunis, J (Joshua)				Opponent November, A (Aiden)
2	2	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Oraai, L (Lee-Jay)				Opponent Taylor, D (Devago)
3	1	Tournament Tsogo Sun Moves For Life Learners Tournament 2024				Tournament Tsogo Sun Moves For Life Learners Tournament 2024
		date 2024-08-31	rnd 3	type Rapid	result 1	date 2024-08-31	rnd 3	type Rapid	result 1
		Opponent Miller, J (Jahwan)				Opponent Miller, J (Jahwan)

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	Taylor ,D (Devago)	2	2	425	1	1	425	1	1	425	0	0	0
1	Taylor ,D (Devago)	2	1216.7	1641.7	1	1200	1641.7	1	1200	1641.7	0	0	0
2	Islam ,Y (Yusuf Abdullah)	1	1	425	1	1	425	0	0	0	0	0	0
2	Islam ,Y (Yusuf Abdullah)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Theunissen ,T (Taineesha)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Theunissen ,T (Taineesha)	1	1209.4	784.4	1	1200	784.4	0	0	0	0	0	0
4	Kibido ,S (Sanda)	1	1	425	1	1	425	0	0	0	0	0	0
4	Kibido ,S (Sanda)	1	1196.9	1621.9	1	1200	1621.9	0	0	0	0	0	0
5	Kiewiet ,D (Denick)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Kiewiet ,D (Denick)	1	1203.4	778.4	1	1181.7	778.4	0	0	0	0	0	0
6	Riddles ,K (Kealin)	1	1	425	1	1	425	0	0	0	0	0	0
6	Riddles ,K (Kealin)	1	1211.6	1636.6	1	1213.3	1636.6	0	0	0	0	0	0
7	Coetzee ,L (Lize)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Coetzee ,L (Lize)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Tshefu ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Tshefu ,E (Ethan)	1	1206.8	1631.8	1	1200	1631.8	0	0	0	0	0	0
9	Joseph ,J (Jairus)	1	1	425	1	1	425	0	0	0	0	0	0
9	Joseph ,J (Jairus)	1	1196.7	1621.7	1	1199.9	1621.7	0	0	0	0	0	0
10	November ,A (Aiden)	1	1	425	0	0	0	1	1	425	0	0	0
10	November ,A (Aiden)	1	1216.9	1641.9	0	0	0	1	1200	1641.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Hartzenberg, A (Allister)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms