Chess South Africa
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Chess South Africa
Marais, AJ (Alwyn)
Dob:
2005/01/17 (U20)
Gender:
Male
Chess SA id:
105020688
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2022/08/26 (669 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
1335.0
Current Weighted rating
1335.0
Current Weighted performance
714.6
Current official/published rating (highest between Raw, WR and WP)
1335.0
Current highest rating achieved
1335.0
Current floor (min rating allowed)
835.0
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)
±136.8
Current Raw change used (final)
0.0
Projected new Raw rating
1335.0
Projected new Weighed rating
1228.2
Projected new Weighted performance
714.6
Projected new final Raw rating (if new WP > new Raw)
1335.0
Projected new highest rating
1335.0
Projected new floor
835.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1335.0
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
1340.0
Current Weighted rating
1340.0
Current Weighted performance
714.6
Current official/published rating (highest between Raw, WR and WP)
1340.0
Current highest rating achieved
1340.0
Current floor (min rating allowed)
840.0
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)
±135.8
Current Raw change used (final)
0.0
Projected new Raw rating
1340.0
Projected new Weighed rating
1232.8
Projected new Weighted performance
714.6
Projected new final Raw rating (if new WP > new Raw)
1340.0
Projected new highest rating
1340.0
Projected new floor
840.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1340.0
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
1330.1
Current Weighted rating
1330.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1330.1
Current highest rating achieved
1330.1
Current floor (min rating allowed)
830.1
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)
±137.8
Current Raw change used (final)
0.0
Projected new Raw rating
1330.1
Projected new Weighed rating
1223.7
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1330.1
Projected new floor
830.1
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1330.1
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
1330.1
Current Weighted rating
1330.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1330.1
Current highest rating achieved
1330.1
Current floor (min rating allowed)
830.1
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)
±137.8
Current Raw change used (final)
0.0
Projected new Raw rating
1330.1
Projected new Weighed rating
1223.7
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1330.1
Projected new floor
830.1
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1330.1
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
13
2022 Gauteng Schools Team Championships (U19 Open)
2022/08/26
2022/08/26
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1325.1
1329.9
Analysis
12
2019 South African Top Schools Team Championships (U15+U17 Open)
2020/01/10
2020/01/11
4 Knights (4K)
Standard
90
0.94
5
4
3.0
1286.2
1289.6
Analysis
11
2019 D4 Tshwane South Schools League Team Finals (U15)
2019/07/27
2019/07/27
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1250.9
1246.8
Analysis
10
South African Junior Team Championships 2018 (U14A)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
5.0
1243.0
1238.9
Analysis
9
2018 Gauteng North Open (B)
2018/10/20
2018/10/21
Tshwane (GTP)
Standard
90
0.94
5
4
1.0
1275.8
1273.5
Analysis
8
2018 Etienne Lewis Trials (U14 Boys)
2018/08/31
2018/09/02
Tshwane (GTP)
Standard
120
1.00
7
7
4.0
1252.8
1249.7
Analysis
7
2018 D4 Tshwane South Schools League Finals (U13)
2018/08/03
2018/08/03
Tshwane (GTP)
Standard
60
0.83
5
3
1.5
1257.6
1255.8
Analysis
6
2018 Capablanca RR (E)
2018/04/26
2018/05/01
Tshwane (GTP)
Standard
135
1.00
9
9
4.0
1241.8
1238.5
Analysis
5
2018 South African Junior Closed Chess Championships (U14 Open)
2018/04/01
2018/04/07
Chess South Africa (CSA)
Standard
120
1.00
11
11
4.0
1250.1
1243.2
Analysis
4
2018 Blou Bul Open (B)
2018/02/17
2018/02/17
Tshwane (GTP)
Standard
60
0.83
5
4
0.0
1305.7
1310.9
Analysis
3
2018 Tshwane Registration Open Chess Tournament (B)
2018/01/27
2018/01/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1330.1
1330.1
Analysis
2
South African Junior Wildcard Championships 2017 (U14 Open)
2018/01/09
2018/01/12
4 Knights (4K)
Standard
120
1.00
7
7
5.0
1330.1
1330.1
Analysis
1
South African Junior Team Championships 2017 (U14A)
2018/01/04
2018/01/08
4 Knights (4K)
Standard
120
1.00
7
7
5.5
1330.1
1330.1
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
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
Standard
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
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
78
39
10
29
44.0
56.4
54.5
1227.0
1281.5
White
40
23
5
12
25.5
63.8
116.9
1191.4
1308.3
Black
38
16
5
17
18.5
48.7
-11.2
1264.5
1253.3
Standard
All
78
39
10
29
44.0
56.4
54.5
1227.0
1281.5
White
40
23
5
12
25.5
63.8
116.9
1191.4
1308.3
Black
38
16
5
17
18.5
48.7
-11.2
1264.5
1253.3
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
106028748
Odendaal, MM (Mikhal)
3
1.5
1
1
1
50.0
1250.7
0.0
1250.7
View list
2
107053924
Vather, S (Shayur)
2
1.0
1
0
1
50.0
1293.8
0.0
1293.8
View list
3
194089884
Koaile, T (Thapelo)
2
0.0
0
0
2
0.0
1258.8
-425.0
833.8
View list
4
105049483
Nair, M (Mayaskar)
2
0.0
0
0
2
0.0
1290.1
-425.0
865.1
View list
5
104086479
Hlongwane, B (Blessing)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
6
150004310
Cavanagh, K (Keith)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
7
106044567
Buitendag, TS (Tristan)
1
1.0
1
0
0
100.0
1252.8
425.0
1677.8
View list
8
2050118307
Botha, M (Marieka)
1
1.0
1
0
0
100.0
1286.2
425.0
1711.2
View list
9
104073101
De Kock, C (Cian)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
10
104044923
De Beer, T (Tiaan)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
11
101005806
Cruywagen, D (Dewan)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
12
105052712
Govender, T (Trevaden)
1
1.0
1
0
0
100.0
1250.1
425.0
1675.1
View list
13
1050112473
Boafo, E (Edin)
1
1.0
1
0
0
100.0
1250.9
425.0
1675.9
View list
14
105050727
Fourie, G (Gerhardt)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
15
104073254
James, T (Tumiso)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
16
1070155480
Keetse, A (Anthony)
1
1.0
1
0
0
100.0
1325.1
425.0
1750.1
View list
17
183084909
Kgosimotswedi, AM (Aaron)
1
1.0
1
0
0
100.0
1330.1
425.0
1755.1
View list
18
105057058
Kruger, MJ (Matthew)
1
1.0
1
0
0
100.0
1250.1
425.0
1675.1
View list
19
106066129
Macdonald, B (Brandon)
1
1.0
1
0
0
100.0
1243.0
425.0
1668.0
View list
20
1060118420
Mohlala, K (Kgaogelo)
1
1.0
1
0
0
100.0
1325.1
425.0
1750.1
View list