Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zoellner, R (Robert)

Chess SA id

1110133371

FIDE id

Date of birth

2011-06-29 (U16)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1186	1185.1	1197.3	1200
Raw rating	1180.1	1185.1	1183	1200
Weighted rating	1186	1182.1	1197.3	1200
Weighted performance	960.6	898.6	0	0
Floor	719.5	719.7	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.6	169.4	169.9	165.8
Highest rating	1260.9 2020-03-01	1254.2 2020-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1219.5 2023-06-01	1219.7 2023-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1219.5 2022-03-01	1219.7 2022-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1260.9 2020-03-01	1254.2 2020-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.8	0	-1.2	0
New rating	1185.2	1185.1	1196.1	1200
Analysis
Rating	1186	1185.1	1197.3	1200
Raw rating	1180.1	1185.1	1183	1200
Weighted rating	1186	1182.1	1197.3
Weighted performance	960.6	898.6	0
K-factor	36	36	36	36
Floor	719.5	719.7	700	700
Max/Min rating change allowed	170.6	169.4	169.9	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	1180.1	1185.1	1183	1200
New weighted rating	1185.2	1182.1	1196.1	1200
New weighted performance	960.2	898.2	0	0
Temp new rating	1185.2	1185.1	1196.1	1200
Temp new rating +/-	-0.8	0	-1.2	0
Final new rating +/-	-0.8	0	-1.2	0
New rating	1185.2	1185.1	1196.1	1200
New K-factor	36	36	36	36
New floor	719.5	719.7	700	700

Item	Main	Standard	Rapid
	0	0	0
	5	0	5
	10	10	0
	15	15	0
	0	0	0
	0	0	0
History	35	30	5

Games since
	Main 15	Standard 10		Rapid 5		Blitz 0
Gender	Male
Age group	U16
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
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	5	2	40	-85	1215.4	1130.4
Standard	0	0	0	0	0	0
Rapid	5	2	40	-85	1215.4	1130.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	35	15	42.86	-60.7	1232.7	1172
Standard	30	13	43.33	-56.7	1235.6	1178.9
Rapid	5	2	40	-85	1215.4	1130.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1180.1	1185.1	1183	1200
2025-09-01	1180.1	1185.1	1183	1200
2025-08-01	1190.1	1185.1	1200	1200
2025-07-01	1190.1	1185.1	1200	1200
2025-06-01	1190.1	1185.1	1200	1200
2025-05-01	1190.1	1185.1	1200	1200
2025-04-01	1190.1	1185.1	1200	1200
2025-03-01	1190.1	1185.1	1200	1200
2025-02-01	1189.7	1184.7	1200	1200
2025-01-01	1177.6	1170.7	1200	1200
2024-12-01	1177.6	1170.7	1200	1200
2024-11-01	1177.6	1170.7	1200	1200
2024-10-01	1177.6	1170.7	1200	1200
2024-09-01	1177.6	1170.7	1200	1200
2024-08-01	1177.6	1170.7	1200	1200
2024-07-01	1177.6	1170.7	1200	1200
2024-06-01	1177.6	1170.7	1200	1200
2024-08-01	1184.5	1177.5	1200	1200
2024-04-01	1210.2	1208.5	1200	1200
2024-03-01	1210.2	1208.5	1200	1200
2024-02-01	1210.2	1208.5	1200	1200
2024-01-01	1210.2	1208.5	1200	1200
2023-12-01	1210.2	1208.5	1200	1200
2023-11-01	1210.2	1208.5	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	Bojanala's Clash Of Schools 2025 (U15)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools 2025 (U15)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
2	Bojanala Circuit Championship 1 of 4 2024 (U14)	2024-05-25	2024-05-25	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
3	Bojanala Olienpark's One For The Ages 2024 (Bishops)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
4	Bojanala's Battle Of Mount Cambridge 2023 (Knights)	2023-09-16	2023-09-16	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Olienpark - 2nd One for the Ages 2023 (U14)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
6	Harties Wolf Pack 2023 (Knights)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
7	Hoerskool Brits Toernooi 2020 (Development)	2020-03-14	2020-03-14	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-09-16	rnd 1	type Standard	result 1
		Opponent Tryens, A (Anesta)				Opponent Steenkamp, A (Anton)
2	3	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Kruger, L (Logan)				Opponent Pretorius, M (Matthias)
3	2	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Malatsi, L (Letlhogonolo)				Opponent Mphomane, O (Omolemo)

#	Games	Start				End
1	3	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-09-16	rnd 1	type Standard	result 1
		Opponent Tryens, A (Anesta)				Opponent Steenkamp, A (Anton)
2	3	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Kruger, L (Logan)				Opponent Pretorius, M (Matthias)
3	2	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Bojanala Olienpark's One For The Ages 2024
		date 2024-04-20	rnd 4	type Standard	result 1	date 2024-04-20	rnd 5	type Standard	result 0.5
		Opponent Du Plessis, A (Alois)				Opponent Khumalo, D (Dimpho)

#	Games	Start				End
1	2	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Malatsi, L (Letlhogonolo)				Opponent Mphomane, O (Omolemo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-09-16	rnd 1	type Standard	result 1
		Opponent Tryens, A (Anesta)				Opponent Steenkamp, A (Anton)
2	3	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Kruger, L (Logan)				Opponent Pretorius, M (Matthias)
3	2	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Malatsi, L (Letlhogonolo)				Opponent Mphomane, O (Omolemo)

#	Games	Start				End
1	3	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-09-16	rnd 1	type Standard	result 1
		Opponent Tryens, A (Anesta)				Opponent Steenkamp, A (Anton)
2	3	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Kruger, L (Logan)				Opponent Pretorius, M (Matthias)
3	1	Tournament Bojanala Circuit Championship 1 of 4 2024				Tournament Bojanala Circuit Championship 1 of 4 2024
		date 2024-05-25	rnd 2	type Standard	result 1	date 2024-05-25	rnd 2	type Standard	result 1
		Opponent Fourie, J (Janco)				Opponent Fourie, J (Janco)

#	Games	Start				End
1	2	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Malatsi, L (Letlhogonolo)				Opponent Mphomane, O (Omolemo)

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	Turusida ,T (Tshiamo)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Turusida ,T (Tshiamo)	2	1266.8	841.8	2	1256.1	841.8	0	0	0	0	0	0
2	Scholtz ,R (Rohann)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Scholtz ,R (Rohann)	1	1472.5	1047.5	1	1478.1	1047.5	0	0	0	0	0	0
3	Corna ,Z (Zeanne)	1	1	425	1	1	425	0	0	0	0	0	0
3	Corna ,Z (Zeanne)	1	1072.1	1497.1	1	1048	1497.1	0	0	0	0	0	0
4	Booyens ,D (Derick)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Booyens ,D (Derick)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Du Plessis ,A (Alois)	1	1	425	1	1	425	0	0	0	0	0	0
5	Du Plessis ,A (Alois)	1	1204.2	1629.2	1	1202.8	1629.2	0	0	0	0	0	0
6	Badukane ,T (Tokelo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Badukane ,T (Tokelo)	1	1298.4	1723.4	1	1292.8	1723.4	0	0	0	0	0	0
7	Letsoalo ,G (Gift)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Letsoalo ,G (Gift)	1	1229.7	804.7	1	1233.3	804.7	0	0	0	0	0	0
8	Steenkamp ,A (Anton)	1	1	425	1	1	425	0	0	0	0	0	0
8	Steenkamp ,A (Anton)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Van Schalkwyk ,H (Hough)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Van Schalkwyk ,H (Hough)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Van Niekerk ,RM (Reuben Mentz)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Van Niekerk ,RM (Reuben Mentz)	1	1359.7	934.7	1	1355.3	934.7	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

Zoellner, R (Robert)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms