Chess South Africa
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Chess South Africa
Mahlatsi, B (Boitumelo)
Dob:
2007/07/30 (U18)
Gender:
Female
Chess SA id:
2070146951
FIDE id:
Region:
Mangaung (FMB)
Citizen:
RSA
Title(s):
Last active:
2024/09/28 (7 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
1257.6
Current Weighted rating
1248.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1257.6
Current highest rating achieved
1257.6
Current floor (min rating allowed)
757.6
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)
±152.8
Current Raw change used (final)
0.0
Projected new Raw rating
1257.6
Projected new Weighed rating
1148.6
Projected new Weighted performance
714.4
Projected new final Raw rating (if new WP > new Raw)
1257.6
Projected new highest rating
1257.6
Projected new floor
757.6
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1257.6
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
1263.2
Current Weighted rating
1256.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1263.2
Current highest rating achieved
1263.2
Current floor (min rating allowed)
763.2
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)
±151.5
Current Raw change used (final)
0.0
Projected new Raw rating
1263.2
Projected new Weighed rating
1156.1
Projected new Weighted performance
714.4
Projected new final Raw rating (if new WP > new Raw)
1263.2
Projected new highest rating
1263.2
Projected new floor
763.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1263.2
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
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
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)
±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
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
1
2024 South Africa National Schools Chess Championship (U18 Girls)
2024/09/27
2024/09/28
Nelson Mandela Bay (ENM)
Standard
70
0.87
7
7
3.0
1247.6
1256.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
2
2024 South Africa National Schools Chess Championship (U18 Girls)
2024/09/27
2024/09/28
Nelson Mandela Bay (ENM)
Standard
70
0.87
7
7
3.0
1247.6
1256.0
Analysis
1
Kiriakos Michalakis Chess Festival 2022 (B)
2022/09/24
2022/09/24
Mangaung (FMB)
Standard
65
0.85
5
5
4.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
7
2
2
3
3.0
42.9
-60.7
1353.3
1292.6
White
4
1
2
1
2.0
50.0
0.0
1301.5
1301.5
Black
3
1
0
2
1.0
33.3
-141.7
1422.5
1280.9
Standard
All
7
2
2
3
3.0
42.9
-60.7
1353.3
1292.6
White
4
1
2
1
2.0
50.0
0.0
1301.5
1301.5
Black
3
1
0
2
1.0
33.3
-141.7
1422.5
1280.9
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
12
6
2
4
7.0
58.3
70.8
1279.2
1350.1
White
6
3
2
1
4.0
66.7
141.7
1267.6
1409.3
Black
6
3
0
3
3.0
50.0
0.0
1290.8
1290.8
Standard
All
12
6
2
4
7.0
58.3
70.8
1279.2
1350.1
White
6
3
2
1
4.0
66.7
141.7
1267.6
1409.3
Black
6
3
0
3
3.0
50.0
0.0
1290.8
1290.8
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
208078559
Van Zyl, M (Mea)
1
1.0
1
0
0
100.0
1247.6
425.0
1672.6
View list
2
1060146982
Thejane, S (Sekoele)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
2090146980
Tau, R (Relebohile)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
1080146979
Tau, L (Lefa)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1080100506
Seutloali, K (Kananelo)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
2080103387
Mmako, FP (Fihile)
1
1.0
1
0
0
100.0
1247.6
425.0
1672.6
View list
7
2070100937
Maseko, U (Unathi)
1
0.5
0
1
0
50.0
1247.6
0.0
1247.6
View list
8
2070145129
Lekgabe, O (Olaotse Ipeleng)
1
0.5
0
1
0
50.0
1247.6
0.0
1247.6
View list
9
2080134836
Biyela, A (Amahle)
1
0.0
0
0
1
0.0
1247.6
-425.0
822.6
View list
10
206059032
Rabkin, S (Samantha)
1
0.0
0
0
1
0.0
1247.6
-425.0
822.6
View list
11
2070148507
Motswiane, V (Vanessa)
1
0.0
0
0
1
0.0
1247.6
-425.0
822.6
View list
12
1100146963
Monteoa, L (Lebogang)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list