Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Michael Arnoldus Bonthuyzen

102002534
Mangaung (FMB)
Personal
Main rating
Rating 1129.3
K-factor 40
Floor 695.9
Highest 1208.4 (2019-06-01)
Min/Max +/- allowed 164
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 395.9
Final +/- 0
New Rating
()
Rating 1129.3
K-factor 40
Floor 695.9
Highest 1208.4 (2019-06-01)
Min/Max +/- allowed 163.8
Standard rating
Rating 1124.7
K-factor 40
Floor 692.7
Highest 1205.2 (2019-06-01)
Min/Max +/- allowed 164.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 395.9
Final +/- 0
New Rating
()
Rating 1124.7
K-factor 40
Floor 692.7
Highest 1205.2 (2019-06-01)
Min/Max +/- allowed 164.6
Rapid rating
Rating 1085
K-factor 40
Floor 585
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1085
K-factor 40
Floor 585
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1085
K-factor 40
Floor 585
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1085
K-factor 40
Floor 585
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Lejweleputswa Chess Swiss Open Tournament 2025 (A) Standard 2025-11-01 2025-11-01 Lejweleputswa (FLW) 5 1129.3 1 0 883.3 0 Details
2 2019 South African Junior Team Championships (U18C) Classical 2020-01-04 2020-01-08 4 Knights (4K) 7 1195.9 6 0.5 933.7 0 Details
3 Lejweleputswa 7th Qualifying Swiss Open Tournament 2019 (Open) Standard 2019-06-15 2019-06-15 Lejweleputswa (FLW) 5 1105.3 5 4 1496.8 0 Details
4 Inter Regional Chess Championship 2019 (U18) Standard 2019-05-10 2019-05-11 Mangaung (FMB) 5 1084.1 5 3 1211.3 0 Details
5 Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (B) Standard 2019-03-16 2019-03-16 Lejweleputswa (FLW) 5 1118.9 3 0.5 802.7 0 Details
6 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019 (B) Standard 2019-01-26 2019-01-26 Lejweleputswa (FLW) 5 1059.7 5 4 1274.4 0 Details
7 South African Junior Team Championships 2018 (U18C) Classical 2018-12-16 2018-12-20 4 Knights (4K) 7 1056.5 7 3 1072.6 0 Details
8 Lejweleputswa 1st Qualifier 2019 (U18) Standard 2018-10-27 2018-10-27 Lejweleputswa (FLW) 5 1022.3 5 2.5 1207.1 0 Details
9 Lejweleputswa 7th Qualifying Swiss Open Tournament 2018 (Open) Standard 2018-06-23 2018-06-23 Lejweleputswa (FLW) 5 1022.3 5 2.5 1028.4 0 Details
10 Inter Regional 2018 (U18 Team) Standard 2018-05-04 2018-05-05 Frances Baard (NCF) 5 1051.3 5 2 877.7 0 Details
11 Lejweleputswa 5th Qualifying Swiss Open Tournament 2018 (Open) Standard 2018-04-21 2018-04-21 Lejweleputswa (FLW) 5 1057 5 2 1021.3 0 Details
12 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (C) Standard 2018-01-27 2018-01-27 Lejweleputswa (FLW) 5 1085 5 4.5 1131.6 0 Details
13 South African Junior Team Championships 2017 (U16C) Classical 2018-01-04 2018-01-08 4 Knights (4K) 7 1085 7 3.5 952 0 Details
14 Lejweleputswa 3Rd Qualifier Open Swiss - 2017 (U16) Standard 2017-02-25 2017-02-25 Lejweleputswa (FLW) 5 749 5 3.5 894 0 Details
15 Lejweleputswa 2Nd Qualifier Open Swiss - 2017 (U16) Standard 2017-02-11 2017-02-11 Lejweleputswa (FLW) 5 749 5 3 668 0 Details
16 Lejweleputswa 1St Qualifier Open Swiss - 2017 (U16) Standard 2017-01-28 2017-01-28 Lejweleputswa (FLW) 5 749 5 3.5 844 0 Details
17 Lejweleputswa 6Th Qualifier Open Swiss - 2017 (U16) Standard 2017-07-29 2017-07-29 Lejweleputswa (FLW) 5 805 5 2.5 547 0 Details
18 Lejweleputswa 5Th Qualifier Open Swiss - 2017 (U16) Standard 2017-07-01 2017-07-01 Lejweleputswa (FLW) 5 805 5 3.5 856 0 Details
19 2017 Inter-Regional ( Under U16 Open) Standard 2017-05-12 2017-05-13 Bojanala Platina (NBR) 5 800 4 2.5 1041 0 Details
20 South African Junior Team Championships 2016 (U16 D) Classical 2016-12-16 2016-12-19 Tshwane (GTP) 7 761 7 4 888 0 Details
21 Lejweleputswa 5Th Qualifier Open Swiss 2016 (U16) Standard 2016-07-30 2016-07-30 Lejweleputswa (FLW) 5 813 5 2 509 0 Details
22 Inter Region 2016 (U16) Standard 2016-05-06 2016-05-07 Free State (FS) 5 873 5 1 653 0 Details
23 Lejweleputswa 3Rd Qualifier Open Swiss 2016 (U16) Standard 2016-02-27 2016-02-27 Lejweleputswa (FLW) 5 955 10 7 959 0 Details
24 Lejweleputswa 2Nd Qualifier Open Swiss 2016 (U16) Standard 2016-02-13 2016-02-13 Lejweleputswa (FLW) 5 955 4 1 670 0 Details
25 Lejweleputswa 1St Qualifier Open Swiss 2016 (U16) Standard 2016-01-30 2016-01-30 Lejweleputswa (FLW) 5 955 5 2 729 0 Details
26 South African Junior Team Championships 2015 (14D) Classical 2016-01-04 2016-01-07 Western Province (WP) 7 926 7 5 1013 0 Details
27 Lejweleputswa 7Th Qualifier Open Swiss (U14) Standard 2015-08-08 2015-08-08 Lejweleputswa (FLW) 5 861 5 3 948 0 Details
28 Lejweleputswa 6Th Qualifier Open Swiss (U14) Standard 2015-07-25 2015-07-25 Lejweleputswa (FLW) 5 861 5 4 1083 0 Details
29 Inter Region 2015 (U14) Standard 2015-05-08 2015-05-09 Lejweleputswa (FLW) 5 865 5 3 839 0 Details
30 Lejweleputswa 3Rd Qualifier Open Swiss (U14) Standard 2015-03-14 2015-03-14 Lejweleputswa (FLW) 5 913 5 3 742 0 Details
31 Lejweleputswa 2Nd Qualifier Open Swiss (U14) Standard 2015-02-28 2015-02-28 Lejweleputswa (FLW) 5 913 5 3 868 0 Details
32 Lejweleputswa 1St Qualifier Open Swiss U 14 Standard 2015-01-31 2015-01-31 Lejweleputswa (FLW) 5 837 5 4 1135 0 Details
33 South African Junior Chess Championships 2014 (Wild Card (U14 Boys) Standard 2015-01-08 2015-01-10 Northern Cape (NC) 7 958 7 3 880 0 Details
34 South African Junior Team Championship 2015 (U14 C-Section) Classical 2015-01-04 2015-01-07 Northern Cape (NC) 7 958 7 2 697 0 Details
35 7Th Qualifying Tournament - Lejweleputswa U.14 Standard 2014-07-26 2014-07-26 Lejweleputswa (FLW) 5 994 3 1 717 0 Details
36 Lejweleputswa Open Swiss U.14 Standard 2014-05-31 2014-05-31 Lejweleputswa (FLW) 5 1003 4 2 944 0 Details
37 Lejweleputswa Open Swiss U 14 Standard 2014-05-17 2014-05-17 Lejweleputswa (FLW) 5 991 3 1 900 0 Details
38 Lejweleputswa Chess Qualifier U.14 Standard 2014-04-12 2014-04-12 Lejweleputswa (FLW) 5 991 4 3 1123 0 Details
39 Lejweleputswa Individual Swiss U14 Standard 2014-03-29 2014-03-29 Lejweleputswa (FLW) 5 1053 3 0 587 0 Details
40 Lejweleputsa Open Swiss U 14 Standard 2014-03-08 2014-03-08 Lejweleputswa (FLW) 5 1042 3 2 1129 0 Details
41 Lejweleputswa Open Swiss U.14 Standard 2014-02-15 2014-02-15 Lejweleputswa (FLW) 5 1020 4 3 1128 0 Details
42 Wild Card Championships 2013 (U12 Boys) Standard 2013-12-19 2013-12-21 Kwazulu Natal (KZN) 7 1153 7 4 983 0 Details
43 South African Junior Team Championship 2013 (U12) Standard 2013-12-15 2013-12-18 Kwazulu Natal (KZN) 7 1153 6 2 827 0 Details
44 Lejweleputswa 6Th Open Chess Qualifiers U 12 Standard 2013-07-19 2013-07-20 Lejweleputswa (FLW) 5 1111 4 4 1351 0 Details
45 Lejweleputswa Open Chess Qualifiers U 12 Standard 2013-06-21 2013-06-22 Lejweleputswa (FLW) 5 1106 4 3 1134 0 Details
46 Lejweleputswa Open Chess Tournament U 12 Standard 2013-04-12 2013-04-13 Lejweleputswa (FLW) 5 906 4 3.5 1262 0 Details
47 Lejweleputswa Open Chess Tournament U 12 Standard 2013-03-15 2013-03-16 Lejweleputswa (FLW) 5 906 5 5 1314 0 Details
48 Lejweleputswa Open Chess Tournament U 12 Standard 2013-03-01 2013-03-02 Lejweleputswa (FLW) 5 906 4 2 862 0 Details
49 Lejweleputswa Open Chess Tournament U 12 Standard 2013-02-01 2013-02-02 Lejweleputswa (FLW) 5 906 5 4 1156 0 Details
50 South African Junior Team Championships 2012 (U12 B-Section) Standard 2012-12-16 2012-12-19 Western Province (WP) 7 937 7 4 829 0 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics (History)
Games 64
Wins 28
Draws 8
Losses 28
White 31
Black 33
White wins 11
Black wins 17
Score 32
Percent 50
Dp 0
AOR 1082.9
Performance 1082.9
Rankings (Main)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Standard)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (12 months)
Games 1
Score 0
Percent 0
Aor 1308.3
Dp -425
Prat 883.3
Performance (History)
Games 64
Score 32
Percent 50
Aor 1082.9
Dp 0
Prat 1082.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Malan, MJ (Mathys Johannes) 3 2 1 Lejweleputswa 5th Qualifying Swiss Open Tournament 2018 (Open) Lejweleputswa 1st Qualifier 2019 (U18) Details
Overall 2 Choane, OOP (Omphile Omphemetse Phalali) 3 2 1 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (C) Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (B) Details
Overall 3 Schonken, JA (Johannes Albertus) 2 1 1 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (C) Inter Regional Chess Championship 2019 (U18) Details
Standard 1 Malan, MJ (Mathys Johannes) 3 2 1 Lejweleputswa 5th Qualifying Swiss Open Tournament 2018 (Open) Lejweleputswa 1st Qualifier 2019 (U18) Details
Standard 2 Choane, OOP (Omphile Omphemetse Phalali) 3 2 1 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (C) Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (B) Details
Standard 3 Schonken, JA (Johannes Albertus) 2 1 1 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (C) Inter Regional Chess Championship 2019 (U18) Details