Chess South Africa
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Chess South Africa
Bothma, B (Byron)
Dob:
2010/04/08 (U16)
Gender:
Male
Chess SA id:
1100118123
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2022/10/22 (613 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
1141.6
Current Weighted rating
1141.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1141.6
Current highest rating achieved
1180.7
Current floor (min rating allowed)
680.7
Current K-factor
40
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)
±180.2
Current Raw change used (final)
0.0
Projected new Raw rating
1141.6
Projected new Weighed rating
1050.2
Projected new Weighted performance
718.9
Projected new final Raw rating (if new WP > new Raw)
1141.6
Projected new highest rating
1180.7
Projected new floor
680.7
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1141.6
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
1127.2
Current Weighted rating
1127.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1127.2
Current highest rating achieved
1177.2
Current floor (min rating allowed)
677.2
Current K-factor
40
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)
±183.9
Current Raw change used (final)
0.0
Projected new Raw rating
1127.2
Projected new Weighed rating
1037.0
Projected new Weighted performance
554.3
Projected new final Raw rating (if new WP > new Raw)
1127.2
Projected new highest rating
1177.2
Projected new floor
677.2
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1127.2
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
1181.2
Current Weighted rating
1181.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1181.6
Current highest rating achieved
1181.2
Current floor (min rating allowed)
681.2
Current K-factor
40
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)
±170.3
Current Raw change used (final)
0.0
Projected new Raw rating
1181.2
Projected new Weighed rating
1086.9
Projected new Weighted performance
312.8
Projected new final Raw rating (if new WP > new Raw)
1181.2
Projected new highest rating
1181.2
Projected new floor
681.2
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1181.2
Projected effective change (new Official - current Official)
-0.4
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
4
George-Suid Senior Skaaktoernooi 2022
2022/10/22
2022/10/22
Eden District (WEG)
Rapid
20
0.47
5
5
2.0
1136.9
1200.0
Analysis
3
George Topskole 2022 (O13)
2022/07/30
2022/07/30
Eden District (WEG)
Standard
60
0.83
5
5
1.0
1159.5
1156.4
Analysis
2
George Trials 2 2022 (U13)
2022/02/12
2022/02/12
Eden District (WEG)
Standard
60
0.83
5
5
1.5
1180.7
1177.2
Analysis
1
2019 Gauteng School League Finals (U9 Open)
2019/08/23
2019/08/23
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
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
20
6
1
13
6.5
32.5
-148.8
1252.3
1103.5
White
11
4
1
6
4.5
40.9
-77.3
1246.1
1168.9
Black
9
2
0
7
2.0
22.2
-236.1
1259.7
1023.6
Standard
All
15
4
1
10
4.5
30.0
-170.0
1245.4
1075.4
White
8
3
1
4
3.5
43.8
-53.1
1228.8
1175.6
Black
7
1
0
6
1.0
14.3
-303.6
1264.5
960.9
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1272.8
1187.8
White
3
1
0
2
1.0
33.3
-141.7
1292.5
1150.8
Black
2
1
0
1
1.0
50.0
0.0
1243.3
1243.3
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
209095400
Rodriguez, C (Chloe-Jade)
2
1.0
1
0
1
50.0
1148.2
0.0
1148.2
View list
2
1110144653
Poulton, G (Grace)
1
1.0
1
0
0
100.0
1136.9
425.0
1561.9
View list
3
1100119487
Ndikandika, X (Xabiso)
1
1.0
1
0
0
100.0
1180.7
425.0
1605.7
View list
4
1090144663
Meintjies, A (Andre)
1
1.0
1
0
0
100.0
1159.5
425.0
1584.5
View list
5
2100118113
Rakau, T (Thato)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
210069186
Terblanche, D (Danielle)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1090136947
Spencer, C (Connor)
1
0.5
0
1
0
50.0
1180.7
0.0
1180.7
View list
8
109077753
Van Loggerenberg, U (Ulrich)
1
0.0
0
0
1
0.0
1159.5
-425.0
734.5
View list
9
109086413
Scholtz, H (Hanko)
1
0.0
0
0
1
0.0
1180.7
-425.0
755.7
View list
10
1110118116
Pule, T (Thato)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
11
1100108128
Prins, R (Reinhart)
1
0.0
0
0
1
0.0
1159.5
-425.0
734.5
View list
12
209083942
Mcmahon, M (Mieka)
1
0.0
0
0
1
0.0
1136.9
-425.0
711.9
View list
13
2090136945
Goliath, R (Rori)
1
0.0
0
0
1
0.0
1180.7
-425.0
755.7
View list
14
1110109382
Fourie, L (Loftie)
1
0.0
0
0
1
0.0
1136.9
-425.0
711.9
View list
15
210072580
Ferreira, A (Adriani)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
16
2100119452
Erasmus, A (Anneke)
1
0.0
0
0
1
0.0
1159.5
-425.0
734.5
View list
17
110091710
Du Toit, B (Bernard)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
18
2110136933
Douglas, C (Caitlin)
1
0.0
0
0
1
0.0
1136.9
-425.0
711.9
View list
19
1090130140
Bukula, S (Sivuyisile)
1
0.0
0
0
1
0.0
1180.7
-425.0
755.7
View list