Chess South Africa
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Chess South Africa
Osman, Z (Zechariah)
Dob:
2012/04/25 (U14)
Gender:
Male
Chess SA id:
1120158752
FIDE id:
Region:
Gert Sibande (MGS)
Citizen:
RSA
Title(s):
Last active:
2023/08/18 (313 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
1263.7
Current Weighted rating
1246.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1263.7
Current highest rating achieved
1263.7
Current floor (min rating allowed)
763.7
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)
±151.4
Current Raw change used (final)
0.0
Projected new Raw rating
1263.7
Projected new Weighed rating
1147.6
Projected new Weighted performance
740.0
Projected new final Raw rating (if new WP > new Raw)
1263.7
Projected new highest rating
1263.7
Projected new floor
763.7
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1263.7
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
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
1309.8
Current Weighted rating
1279.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1309.8
Current highest rating achieved
1309.8
Current floor (min rating allowed)
809.8
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)
±141.8
Current Raw change used (final)
0.0
Projected new Raw rating
1309.8
Projected new Weighed rating
1179.3
Projected new Weighted performance
779.0
Projected new final Raw rating (if new WP > new Raw)
1309.8
Projected new highest rating
1309.8
Projected new floor
809.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1309.8
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
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.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
2
Govin Mbeki Teams Chess Tournament 2023 (U11)
2023/08/18
2023/08/18
Gert Sibande (MGS)
Rapid
30
0.60
5
5
3.5
1238.9
1270.9
Analysis
1
Hoëveldgroep 2023 (O11)
2023/07/28
2023/07/28
Gert Sibande (MGS)
Rapid
30
0.60
5
5
4.0
1200.0
1200.0
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
10
7
1
2
7.5
75.0
212.5
1251.0
1463.5
White
4
3
1
0
3.5
87.5
318.8
1236.4
1555.2
Black
6
4
0
2
4.0
66.7
141.7
1260.7
1402.4
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
10
7
1
2
7.5
75.0
212.5
1251.0
1463.5
White
4
3
1
0
3.5
87.5
318.8
1236.4
1555.2
Black
6
4
0
2
4.0
66.7
141.7
1260.7
1402.4
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
1120143886
Coetzee, M (Markus)
2
1.5
1
1
0
75.0
1219.5
212.5
1432.0
View list
2
1130144000
Mtsweni, L (Lungelo)
2
1.0
1
0
1
50.0
1219.5
0.0
1219.5
View list
3
1130158750
Mhlekva, B (Buntu)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
1120143895
Herbst, A (Anthony)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1130158742
Engelbrecht, D (Dawie)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1130143987
Du Toit, N (Nua)
1
1.0
1
0
0
100.0
1238.9
425.0
1663.9
View list
7
1120160330
Shaij, U (Uzayr Ali)
1
1.0
1
0
0
100.0
1238.9
425.0
1663.9
View list
8
2130145118
Mhlongo, K (Khabelihle)
1
0.0
0
0
1
0.0
1238.9
-425.0
813.9
View list
