Player Page

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
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 rating1359.9
Current Weighted rating1231.6
Current Weighted performance1385.3
Current official/published rating (highest between Raw, WR and WP)1385.3
Current highest rating achieved1359.9
Current floor (min rating allowed)859.9
Current K-factor36
Games played this month0
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 rating1359.9
Projected new Weighed rating1134.1
Projected new Weighted performance1385.3
Projected new final Raw rating (if new WP > new Raw)1385.3
Projected new highest rating1385.3
Projected new floor885.3
Projected new K-facor36
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 rating1297.2
Current Weighted rating1225.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1297.2
Current highest rating achieved1297.2
Current floor (min rating allowed)797.2
Current K-factor36
Games played this month0
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 rating1297.2
Projected new Weighed rating1128.0
Projected new Weighted performance1079.5
Projected new final Raw rating (if new WP > new Raw)1297.2
Projected new highest rating1297.2
Projected new floor797.2
Projected new K-facor36
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
s
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 rating1228.8
Current Weighted rating1195.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1228.8
Current highest rating achieved1228.8
Current floor (min rating allowed)728.8
Current K-factor36
Games played this month0
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 rating1228.8
Projected new Weighed rating1100.2
Projected new Weighted performance1074.3
Projected new final Raw rating (if new WP > new Raw)1228.8
Projected new highest rating1228.8
Projected new floor728.8
Projected new K-facor36
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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