Chess South Africa
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Chess South Africa
Roberts, MH (Marthinus Hendrik)
Dob:
2017/04/05 (U8)
Gender:
Male
Chess SA id:
1170157329
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/08/31 (65 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1514.8
Current Weighted rating
1405.8
Current Weighted performance
1416.1
Current official/published rating (highest between Raw, WR and WP)
1514.8
Current highest rating achieved
1582.7
Current floor (min rating allowed)
1082.7
Current K-factor
32
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±105.9
Current Raw change used (final)
0.0
Projected new Raw rating
1514.8
Projected new Weighed rating
1299.4
Projected new Weighted performance
1416.1
Projected new final Raw rating (if new WP > new Raw)
1514.8
Projected new highest rating
1582.7
Projected new floor
1082.7
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1514.8
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1504.2
Current Weighted rating
1395.6
Current Weighted performance
1416.1
Current official/published rating (highest between Raw, WR and WP)
1504.2
Current highest rating achieved
1577.8
Current floor (min rating allowed)
1077.8
Current K-factor
32
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±107.5
Current Raw change used (final)
0.0
Projected new Raw rating
1504.2
Projected new Weighed rating
1289.8
Projected new Weighted performance
1416.1
Projected new final Raw rating (if new WP > new Raw)
1504.2
Projected new highest rating
1577.8
Projected new floor
1077.8
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1504.2
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1255.4
Current Weighted rating
1247.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1255.4
Current highest rating achieved
1255.4
Current floor (min rating allowed)
755.4
Current K-factor
36
s
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±153.2
Current Raw change used (final)
0.0
Projected new Raw rating
1255.4
Projected new Weighed rating
1148.3
Projected new Weighted performance
415.1
Projected new final Raw rating (if new WP > new Raw)
1255.4
Projected new highest rating
1255.4
Projected new floor
755.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1255.4
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
10
2024 Etienne Lewis (U8)
2024/08/31
2024/08/31
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1514.8
1502.6
Analysis
9
2024 Alekhine Open Chess Tournament (U8)
2024/08/09
2024/08/09
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1566.0
1558.6
Analysis
8
D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9A)
2024/08/03
2024/08/03
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1566.0
1558.6
Analysis
7
Menlopark Open Chess Tournament 2024 (U8)
2024/07/13
2024/07/13
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1582.7
1577.8
Analysis
6
Bojanala Olienpark's One For The Ages 2024 (Center Pawns)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
5.0
1484.1
1480.8
Analysis
5
Bojanala's Rating Express 2024 (Big Pawns)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
7
6
6.0
1484.1
1480.8
Analysis
4
2024 Chris Greyling Open Chess Tournament (F)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1303.0
1293.2
Analysis
3
2024 Wynie Robbertse Chess Tournament (F)
2024/03/02
2024/03/02
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1303.0
1293.2
Analysis
2
2024 Constantiapark Open (F)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1250.9
1234.2
Analysis
1
JMC Kick Off Tournament 2024 (U8)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1241.6
1219.1
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
15
2024 Etienne Lewis (U8)
2024/08/31
2024/08/31
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1514.8
1502.6
Analysis
14
2024 Alekhine Open Chess Tournament (U8)
2024/08/09
2024/08/09
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1566.0
1558.6
Analysis
13
D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9A)
2024/08/03
2024/08/03
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1566.0
1558.6
Analysis
12
Menlopark Open Chess Tournament 2024 (U8)
2024/07/13
2024/07/13
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1582.7
1577.8
Analysis
11
Bojanala Olienpark's One For The Ages 2024 (Center Pawns)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
5.0
1484.1
1480.8
Analysis
10
Bojanala's Rating Express 2024 (Big Pawns)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
7
6
6.0
1484.1
1480.8
Analysis
9
2024 Chris Greyling Open Chess Tournament (F)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1303.0
1293.2
Analysis
8
2024 Wynie Robbertse Chess Tournament (F)
2024/03/02
2024/03/02
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1303.0
1293.2
Analysis
7
2024 Constantiapark Open (F)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1250.9
1234.2
Analysis
6
JMC Kick Off Tournament 2024 (U8)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1241.6
1219.1
Analysis
5
Lardies Open Tournament 2023 (F)
2023/10/28
2023/10/28
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1194.7
1154.3
Analysis
4
Ekurhuleni Chess Spring Tournament 2023 (E)
2023/09/23
2023/09/23
Ekurhuleni (GE)
Standard
60
0.83
5
4
0.0
1201.7
1202.2
Analysis
3
2023 U8 Open Chess Tournament
2023/09/02
2023/09/02
Tshwane (GTP)
Rapid
30
0.60
5
5
4.0
1201.7
1200.0
Analysis
2
2023 Menlo Open Tournament (F)
2023/07/22
2023/07/22
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1212.5
1214.8
Analysis
1
JNW Open - Trinityhouse Little Falls 2023 (U8)
2023/06/24
2023/06/24
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
51
42
1
8
42.5
83.3
283.3
1210.6
1494.0
White
26
21
1
4
21.5
82.7
277.9
1217.6
1495.5
Black
25
21
0
4
21.0
84.0
289.0
1203.3
1492.3
Standard
All
51
42
1
8
42.5
83.3
283.3
1210.6
1494.0
White
26
21
1
4
21.5
82.7
277.9
1217.6
1495.5
Black
25
21
0
4
21.0
84.0
289.0
1203.3
1492.3
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
75
55
1
19
55.5
74.0
204.0
1217.5
1421.5
White
38
25
1
12
25.5
67.1
145.4
1228.7
1374.1
Black
37
30
0
7
30.0
81.1
264.2
1206.0
1470.2
Standard
All
70
51
1
18
51.5
73.6
200.4
1218.4
1418.8
White
36
24
1
11
24.5
68.1
153.5
1229.3
1382.8
Black
34
27
0
7
27.0
79.4
250.0
1206.9
1456.9
Rapid
All
5
4
0
1
4.0
80.0
255.0
1204.8
1459.8
White
2
1
0
1
1.0
50.0
0.0
1217.4
1217.4
Black
3
3
0
0
3.0
100.0
425.0
1196.3
1621.3
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2170191352
Kgwale, K (Keratilwe)
5
4.0
4
0
1
80.0
1387.5
255.0
1642.5
View list
2
1170149169
Barkhuizen, R (Reuben)
3
1.0
1
0
2
33.3
1430.7
-141.7
1289.1
View list
3
2160158380
Grobbelaar, M (Mari)
3
1.0
1
0
2
33.3
1203.0
-141.7
1061.3
View list
4
1170155747
Koorts, L (Lukas)
3
1.0
1
0
2
33.3
1218.0
-141.7
1076.4
View list
5
2170191603
Joubert, Z (Zani)
2
2.0
2
0
0
100.0
1272.3
425.0
1697.3
View list
6
2170149596
Mabugu, R (Refilwe)
2
2.0
2
0
0
100.0
1393.5
425.0
1818.5
View list
7
1170306855
Ntuli, S (Siphesihle)
2
2.0
2
0
0
100.0
1540.4
425.0
1965.4
View list
8
1150190422
Li, J (Jiming)
2
1.0
1
0
1
50.0
1380.3
0.0
1380.3
View list
9
1160148677
Roos, B (Benjamin)
2
1.0
1
0
1
50.0
1380.3
0.0
1380.3
View list
10
1160157330
Steyn, K (Kahn)
2
1.0
1
0
1
50.0
1206.3
0.0
1206.3
View list
11
1180147825
Conradie, D (David)
2
0.0
0
0
2
0.0
1225.5
-425.0
800.5
View list
12
1160158379
Gauche, K (Kian)
1
1.0
1
0
0
100.0
1194.7
425.0
1619.7
View list
13
1180303048
Fischer, E (Ernst)
1
1.0
1
0
0
100.0
1582.7
425.0
2007.7
View list
14
1170143024
Ebersohn, C (Christiaan)
1
1.0
1
0
0
100.0
1303.0
425.0
1728.0
View list
15
1160151828
Du Pisani, M (Malcom)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
16
1170302567
Diyalani, D (Dhanush)
1
1.0
1
0
0
100.0
1566.0
425.0
1991.0
View list
17
1180300701
Dikane, L (Leano)
1
1.0
1
0
0
100.0
1484.1
425.0
1909.1
View list
18
1170303463
Botha, Z (Zander)
1
1.0
1
0
0
100.0
1514.8
425.0
1939.8
View list
19
1170192179
Botha, J (Janco)
1
1.0
1
0
0
100.0
1250.9
425.0
1675.9
View list
20
1170145156
Botha, E (Erasmus Albertus)
1
1.0
1
0
0
100.0
1484.1
425.0
1909.1
View list