Chess South Africa
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Chess South Africa
Mrwetyana, B (Bulumko Ayamkela)
Dob:
2009/11/25 (U16)
Gender:
Male
Chess SA id:
1090160695
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/05/25 (23 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
1359.9
Current Weighted rating
1231.6
Current Weighted performance
1385.3
Current official/published rating (highest between Raw, WR and WP)
1385.3
Current highest rating achieved
1359.9
Current floor (min rating allowed)
859.9
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)
±132.0
Current Raw change used (final)
0.0
Projected new Raw rating
1359.9
Projected new Weighed rating
1134.1
Projected new Weighted performance
1385.3
Projected new final Raw rating (if new WP > new Raw)
1385.3
Projected new highest rating
1385.3
Projected new floor
885.3
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1385.3
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
1297.2
Current Weighted rating
1225.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1297.2
Current highest rating achieved
1297.2
Current floor (min rating allowed)
797.2
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)
±144.4
Current Raw change used (final)
0.0
Projected new Raw rating
1297.2
Projected new Weighed rating
1128.0
Projected new Weighted performance
1079.5
Projected new final Raw rating (if new WP > new Raw)
1297.2
Projected new highest rating
1297.2
Projected new floor
797.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1297.2
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
1228.8
Current Weighted rating
1195.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1228.8
Current highest rating achieved
1228.8
Current floor (min rating allowed)
728.8
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)
±159.1
Current Raw change used (final)
0.0
Projected new Raw rating
1228.8
Projected new Weighed rating
1100.2
Projected new Weighted performance
1074.3
Projected new final Raw rating (if new WP > new Raw)
1228.8
Projected new highest rating
1228.8
Projected new floor
728.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1228.8
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.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
4
Chess Power House May Open 2024 (C)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1294.9
1254.4
Analysis
3
CPH St Andrew's Rapid 2024 (B)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
3.5
1219.9
1186.7
Analysis
2
JNW Open - Classic - Crawford 2024 (C)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1219.9
1219.8
Analysis
1
Chess Power House 1st Rapid 2024 (B)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
3.0
1198.1
1148.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Chess Power House May Open 2024 (C)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1294.9
1254.4
Analysis
5
CPH St Andrew's Rapid 2024 (B)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
3.5
1219.9
1186.7
Analysis
4
JNW Open - Classic - Crawford 2024 (C)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1219.9
1219.8
Analysis
3
Chess Power House 1st Rapid 2024 (B)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
3.0
1198.1
1148.5
Analysis
2
Chess Power House Festive Rapid 2023 (High School)
2023/12/15
2023/12/15
Johannesburg Metro (GJM)
Rapid
20
0.47
6
5
1.0
1216.9
1200.0
Analysis
1
Chess Power House 2023 (C)
2023/08/19
2023/08/19
Johannesburg Metro (GJM)
Standard
90
0.94
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
20
12
3
5
13.5
67.5
148.8
1322.3
1471.0
White
12
7
2
3
8.0
66.7
141.7
1302.0
1443.7
Black
8
5
1
2
5.5
68.8
159.4
1352.6
1512.0
Standard
All
10
6
2
2
7.0
70.0
170.0
1265.7
1435.7
White
6
3
2
1
4.0
66.7
141.7
1264.4
1406.0
Black
4
3
0
1
3.0
75.0
212.5
1267.7
1480.2
Rapid
All
10
6
1
3
6.5
65.0
127.5
1378.8
1506.3
White
6
4
0
2
4.0
66.7
141.7
1339.7
1481.4
Black
4
2
1
1
2.5
62.5
106.3
1437.5
1543.8
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
30
16
3
11
17.5
58.3
70.8
1297.6
1368.5
White
18
11
2
5
12.0
66.7
141.7
1290.6
1432.3
Black
12
5
1
6
5.5
45.8
-35.4
1308.2
1272.8
Standard
All
15
9
2
4
10.0
66.7
141.7
1245.6
1387.2
White
9
6
2
1
7.0
77.8
236.1
1235.4
1471.5
Black
6
3
0
3
3.0
50.0
0.0
1260.8
1260.8
Rapid
All
15
7
1
7
7.5
50.0
0.0
1349.7
1349.7
White
9
5
0
4
5.0
55.6
47.2
1345.9
1393.1
Black
6
2
1
3
2.5
41.7
-70.8
1355.5
1284.7
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
1120136689
Kalimashe, T (Tshireletso)
2
1.0
1
0
1
50.0
1246.5
0.0
1246.5
View list
2
1110141967
Farkas, C (Coby)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
1120131436
Emechebe, M (Munachim)
1
1.0
1
0
0
100.0
1198.1
425.0
1623.1
View list
4
2110300393
Eksteen, A (Alula)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
5
1120147297
Chikwava, R (Ronald)
1
1.0
1
0
0
100.0
1294.9
425.0
1719.9
View list
6
1130154999
Gadney, L (Liam)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
7
1140144042
Motau, N (Neelo)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
8
1150153036
Mosala, A (Atlehang)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
9
2130143691
Molefe, T (Tshegofatso)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
10
1240300400
Mnguni, A (Aphile)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
11
1100135686
Mashigo, W (Wayne)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1130152987
Mann, I (Iowan)
1
1.0
1
0
0
100.0
1219.9
425.0
1644.9
View list
13
1130300249
Mankena, S (Satvik Ram)
1
1.0
1
0
0
100.0
1294.9
425.0
1719.9
View list
14
1090191366
Khumalo, K (Khensani)
1
1.0
1
0
0
100.0
1216.9
425.0
1641.9
View list
15
1130192080
Kgwale, L (Lesedi)
1
1.0
1
0
0
100.0
1198.1
425.0
1623.1
View list
16
1120161577
Tierney, G (Grayson)
1
1.0
1
0
0
100.0
1294.9
425.0
1719.9
View list
17
2120130719
Jacobs, L (Lillith)
1
0.5
0
1
0
50.0
1219.9
0.0
1219.9
View list
18
2130130731
Papanicolaou, M (Mila)
1
0.5
0
1
0
50.0
1294.9
0.0
1294.9
View list
19
1120158259
Townsend, B (Brian)
1
0.5
0
1
0
50.0
1219.9
0.0
1219.9
View list
20
1060118318
Malungana, P (Perseverance)
1
0.0
0
0
1
0.0
1216.9
-425.0
791.9
View list