Chess South Africa Ratings Database

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Personal

Muller, K (Kieran)

Chess SA id

1100119486

FIDE id

Date of birth

2010-06-08 (U18)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1599.9	1592.7	1223.2	1249.3
Raw rating	1599.9	1592.7	1223.2	1249.3
Weighted rating	1571	1562.6	1223.2	1214.8
Weighted performance	1507.8	1524.8	0	0
Floor	1118.2	1120.4	741.6	749.3
K-factor	28	28	36	36
Min/Max rating change allowed	93.8	94.8	160.4	154.6
Highest rating	1618.2 2025-04-01	1620.4 2025-04-01	1378.4 2019-10-01	1249.3 2025-09-30
Highest raw rating	1618.2 2025-04-01	1620.4 2025-04-01	1241.6 2020-01-01	1249.3 2025-09-30
Highest weighted rating	1571 2026-01-01	1562.6 2026-01-01	1241.6 2021-10-01	1203.9 2025-09-30
Highest weighted performance	1618.2 2025-04-01	1620.4 2023-08-01	1378.4 2019-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1599.9	1592.7	1223.2	1249.3
Analysis
Rating	1599.9	1592.7	1223.2	1249.3
Raw rating	1599.9	1592.7	1223.2	1249.3
Weighted rating	1571	1562.6	1223.2
Weighted performance	1507.8	1524.8	0
K-factor	28	28	36	36
Floor	1118.2	1120.4	741.6	749.3
Max/Min rating change allowed	93.8	94.8	160.4	154.6
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	1599.9	1592.7	1223.2	1249.3
New weighted rating	1574.5	1566.2	1223.2	1218.1
New weighted performance	1497.7	1514.5	0	0
Temp new rating	1599.9	1592.7	1223.2	1249.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1599.9	1592.7	1223.2	1249.3
New K-factor	28	28	36	36
New floor	1118.2	1120.4	741.6	749.3

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	58	49	0	9
	44	44	0	0
	50	50	0	0
	51	46	5	0
	0	0	0	0
History	232	213	10	9

Games since
	Main 102	Standard 93		Rapid 0		Blitz 9
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	679		203		37
Male	605		180		34
U16	80		22		3
U16 Male	68		19		3
Standard
	RSA		Province		Region
Overall	697		188		34
Male	616		165		30
U16	84		22		3
U16 Male	72		19		3
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	58	39.5	68.1	153.9	1428.4	1582.3
Standard	49	35	71.43	182.1	1412.7	1594.8
Rapid	0	0	0	0	0	0
Blitz	9	4.5	50	0	1513.9	1513.9
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	232	153	65.95	135.6	1345.4	1480.9
Standard	213	142	66.67	141.7	1340.6	1482.2
Rapid	10	6.5	65	127.5	1295.8	1423.2
Blitz	9	4.5	50	0	1513.9	1513.9

Date	Main	Standard	Rapid	Blitz
2026-01-01	1599.9	1592.7	1223.2	1249.3
2025-11-30	1592.2	1581.2	1223.2	1249.3
2025-11-01	1592.2	1581.2	1223.2	1249.3
2025-09-30	1592.2	1581.2	1223.2	1249.3
2025-09-01	1593.1	1578.4	1223.2	1200
2025-08-01	1597.1	1589	1223.2	1200
2025-07-01	1597.1	1589	1223.2	1200
2025-06-01	1585.2	1575.6	1223.2	1200
2025-05-01	1585.2	1575.6	1223.2	1200
2025-04-01	1618.2	1620.4	1223.2	1200
2025-03-01	1535.9	1534	1223.2	1200
2025-02-01	1527.3	1519.1	1223.2	1200
2025-01-01	1516.6	1507.1	1223.2	1200
2024-12-01	1516.6	1507.1	1223.2	1200
2024-11-01	1516.6	1507.1	1223.2	1200
2024-10-01	1516.6	1507.1	1223.2	1200
2024-09-01	1516.6	1507.1	1223.2	1200
2024-11-01	1550.9	1549	1223.2	1200
2024-07-01	1544.5	1542.3	1223.2	1200
2024-06-01	1544.5	1542.3	1223.2	1200
2024-05-01	1544.5	1542.3	1223.2	1200
2024-04-01	1501.2	1486.9	1223.2	1200
2024-03-01	1503.3	1488.2	1223.2	1200
2024-02-01	1541.8	1529.5	1223.2	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	2025 Mzansi Inter Provincial Team Championships (U16 Open)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
2	Eden Blitz 2025 (Open)	2025-09-20	2025-09-20	Blitz	Eden (WEG)	9	9	4.5	Yes	Analysis
3	Western Cape Schools - Top Schools 2025 (U19)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
4	2025 Eden Open & Women's Tournament (Championship)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
5	2025 WC Rural Cup (U16)	2025-06-14	2025-06-15	Standard	Eden (WEG)	6	6	4	Yes	Analysis
6	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
7	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	7	Yes	Analysis
8	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	4	4	Yes	Analysis
9	George Schools Chess Trials 3 2025 (U15 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	4	Yes	Analysis
10	George Schools Chess Trials 2 2025 (U15 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	4	3	Yes	Analysis
11	George Schools Chess Trials 1 2025 (U15 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	4	3	Yes	Analysis
12	Eden Top Schools 2024 (U18 Open)	2024-08-17	2024-08-17	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
13	George HS Top Schools 2024 (U18)	2024-07-13	2024-07-13	Standard	Eden (WEG)	5	4	4	Yes	Analysis
14	Eden Chess Trials 2 2024 (U16)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	7.5	Yes	Analysis
15	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3.5	Yes	Analysis
16	Eden School Chess Trials 1 2024 (U15 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
17	George Schools Trials 3 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
18	George Schools Trials 2 2024 (U15 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3	Yes	Analysis
19	George Schools Trials 1 2024 (U15 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	4	2.5	Yes	Analysis
20	Western Cape Top Schools 2023 (U13 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
21	Eden Top Schools 2023 (U13 Mix)	2023-08-19	2023-08-19	Standard	Eden (WEG)	5	5	3	Yes	Analysis
22	Top Schools 2023 (U13)	2023-07-29	2023-07-29	Standard	Eden (WEG)	5	5	5	Yes	Analysis
23	Eden Trials 2+3 2023 (U14)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	6	Yes	Analysis
24	George Chess Club Winter Open 2023 (C)	2023-05-20	2023-05-20	Standard	Eden (WEG)	5	5	4	Yes	Analysis
25	Eden Trails 1 2023 (U13 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	3	Yes	Analysis
26	George Chess Trials 3 2023 (U13 Boys)	2023-02-25	2023-02-25	Standard	Eden (WEG)	5	5	4	Yes	Analysis
27	George Chess Trials 2 2023 (U13 Boys)	2023-02-11	2023-02-11	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
28	George Chess Trials 1 2023 (U13 Boys)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	4	3	Yes	Analysis
29	George Open 2022 (C)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
30	George-Suid Senior Skaaktoernooi 2022	2022-10-22	2022-10-22	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
31	George Topskole 2022 (O13)	2022-07-30	2022-07-30	Standard	Eden (WEG)	5	5	3	Yes	Analysis
32	George Open 2022 (B)	2022-06-11	2022-06-11	Standard	Eden (WEG)	5	5	1	Yes	Analysis
33	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
34	Eden Proewe 2 2022 (O13 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
35	Eden Open 2022 (C)	2022-04-23	2022-04-23	Standard	Eden (WEG)	5	5	3	Yes	Analysis
36	Eden Proewe 1 2022 (O13 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	3	Yes	Analysis
37	George Trials 3 2022 (U13)	2022-02-26	2022-02-26	Standard	Eden (WEG)	5	5	3	Yes	Analysis
38	George Trials 1 2022 (U13)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	5	3	Yes	Analysis
39	Eden Schools Closed Trials 1 2020 (U11 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	4	Yes	Analysis
40	George Trial 3 2020 (U12)	2020-02-22	2020-02-22	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
41	George Trial 2 2020 (U12)	2020-02-08	2020-02-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis
42	George Trial 1 2020 (U12)	2020-01-25	2020-01-25	Standard	Eden (WEG)	5	4	2	Yes	Analysis
43	George Open Chess Tournament 2019 (D)	2019-11-30	2019-11-30	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
44	George Suid Junior Skaaktoernooi 2019	2019-10-19	2019-10-19	Rapid	Eden (WEG)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament George Schools Chess Trials 3 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-01	rnd 4	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Venter, H (Hennie)				Opponent Etsala-Kourou, B (Billy)
2	10	Tournament Eden Chess Trials 2 2024				Tournament Eden Top Schools 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Smit, D (Dian)
3	9	Tournament George Chess Trials 1 2023				Tournament George Chess Trials 3 2023
		date 2023-01-28	rnd 4	type Standard	result 1	date 2023-02-25	rnd 2	type Standard	result 1
		Opponent Herholdt, M (Markus)				Opponent Smit, M (Matthys)

#	Games	Start				End
1	10	Tournament George Schools Chess Trials 3 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-01	rnd 4	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Venter, H (Hennie)				Opponent Etsala-Kourou, B (Billy)
2	10	Tournament Eden Chess Trials 2 2024				Tournament Eden Top Schools 2024
		date 2024-04-20	rnd 7	type Standard	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Smit, D (Dian)
3	9	Tournament George Chess Trials 1 2023				Tournament George Chess Trials 3 2023
		date 2023-01-28	rnd 4	type Standard	result 1	date 2023-02-25	rnd 2	type Standard	result 1
		Opponent Herholdt, M (Markus)				Opponent Smit, M (Matthys)

#	Games	Start				End
1	3	Tournament George-Suid Senior Skaaktoernooi 2022				Tournament George-Suid Senior Skaaktoernooi 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Mcmahon, M (Mieka)				Opponent Douglas, C (Caitlin)
2	3	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 1	type Rapid	result 1	date 2019-10-19	rnd 3	type Rapid	result 0.5
		Opponent Claassen, R (Reinier)				Opponent Le Roux, E (Ebert)
3	1	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 5	type Rapid	result 1	date 2019-10-19	rnd 5	type Rapid	result 1
		Opponent Petersen, G (Geano)				Opponent Petersen, G (Geano)

#	Games	Start				End
1	2	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 5	type Blitz	result 1	date 2025-09-20	rnd 6	type Blitz	result 1
		Opponent Malukazi, S (Shammah)				Opponent Cupido, C (Craig)
2	1	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 9	type Blitz	result 1	date 2025-09-20	rnd 9	type Blitz	result 1
		Opponent Malukazi, A (Abby)				Opponent Malukazi, A (Abby)
3	1	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 3	type Blitz	result 0.5	date 2025-09-20	rnd 3	type Blitz	result 0.5
		Opponent Claassen, M (Maurice)				Opponent Claassen, M (Maurice)

#	Games	Start				End
1	9	Tournament George Chess Trials 1 2023				Tournament George Chess Trials 3 2023
		date 2023-01-28	rnd 4	type Standard	result 1	date 2023-02-25	rnd 2	type Standard	result 1
		Opponent Herholdt, M (Markus)				Opponent Smit, M (Matthys)
2	8	Tournament George Schools Chess Trials 3 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-01	rnd 4	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Venter, H (Hennie)				Opponent Taute, E (Edwina)
3	8	Tournament Eden Chess Trials 2 2024				Tournament Eden Top Schools 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Smit, D (Dian)

#	Games	Start				End
1	9	Tournament George Chess Trials 1 2023				Tournament George Chess Trials 3 2023
		date 2023-01-28	rnd 4	type Standard	result 1	date 2023-02-25	rnd 2	type Standard	result 1
		Opponent Herholdt, M (Markus)				Opponent Smit, M (Matthys)
2	8	Tournament George Schools Chess Trials 3 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-01	rnd 4	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Venter, H (Hennie)				Opponent Taute, E (Edwina)
3	8	Tournament Eden Chess Trials 2 2024				Tournament Eden Top Schools 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Smit, D (Dian)

#	Games	Start				End
1	3	Tournament George-Suid Senior Skaaktoernooi 2022				Tournament George-Suid Senior Skaaktoernooi 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Mcmahon, M (Mieka)				Opponent Douglas, C (Caitlin)
2	2	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 1	type Rapid	result 1	date 2019-10-19	rnd 2	type Rapid	result 1
		Opponent Claassen, R (Reinier)				Opponent Godbeer, M (Michael)
3	1	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 5	type Rapid	result 1	date 2019-10-19	rnd 5	type Rapid	result 1
		Opponent Petersen, G (Geano)				Opponent Petersen, G (Geano)

#	Games	Start				End
1	2	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 5	type Blitz	result 1	date 2025-09-20	rnd 6	type Blitz	result 1
		Opponent Malukazi, S (Shammah)				Opponent Cupido, C (Craig)
2	1	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 9	type Blitz	result 1	date 2025-09-20	rnd 9	type Blitz	result 1
		Opponent Malukazi, A (Abby)				Opponent Malukazi, A (Abby)
3	1	Tournament Eden Blitz 2025				Tournament Eden Blitz 2025
		date 2025-09-20	rnd 1	type Blitz	result 1	date 2025-09-20	rnd 1	type Blitz	result 1
		Opponent Swart, S (Sune)				Opponent Swart, S (Sune)

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	Prins ,R (Reinhart)	7	2	-182.1	7	2	-182.1	0	0	0	0	0	0
1	Prins ,R (Reinhart)	7	1546.5	1364.3	7	1529.4	1364.3	0	0	0	0	0	0
2	Petersen ,S (Shenwin)	5	2	-85	5	2	-85	0	0	0	0	0	0
2	Petersen ,S (Shenwin)	5	1356	1271	5	1368.2	1271	0	0	0	0	0	0
3	Stander ,H (Hendrik)	4	3.5	318.8	4	3.5	318.8	0	0	0	0	0	0
3	Stander ,H (Hendrik)	4	1384.9	1703.7	4	1386.2	1703.7	0	0	0	0	0	0
4	Marx ,M (Marnu)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
4	Marx ,M (Marnu)	4	1457.9	1245.4	4	1449.5	1245.4	0	0	0	0	0	0
5	Gouws ,G (Garlan)	3	3	425	3	3	425	0	0	0	0	0	0
5	Gouws ,G (Garlan)	3	1343.6	1768.6	3	1318.8	1768.6	0	0	0	0	0	0
6	Arpin ,L (Lukas)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Arpin ,L (Lukas)	3	1364.9	1506.6	3	1355.6	1506.6	0	0	0	0	0	0
7	Hone ,R (Ryan)	3	0	-425	3	0	-425	0	0	0	0	0	0
7	Hone ,R (Ryan)	3	1521.8	1096.8	3	1523.5	1096.8	0	0	0	0	0	0
8	Claassen ,R (Raynier)	3	0	-425	3	0	-425	0	0	0	0	0	0
8	Claassen ,R (Raynier)	3	1687.3	1262.3	3	1736.7	1262.3	0	0	0	0	0	0
9	Mncube ,S (Sifiso)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
9	Mncube ,S (Sifiso)	3	1449.4	1591	3	1452.3	1591	0	0	0	0	0	0
10	Buhrs ,J (Jethro)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
10	Buhrs ,J (Jethro)	3	1422.1	1422.1	3	1408.4	1422.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Muller, K (Kieran)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms