Player Page

Elvin, D (David)
Dob: 2008/03/03 (U18)
Gender: Male
Chess SA id: 1080119822
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/08/17 (27 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 rating1660.9
Current Weighted rating1527.1
Current Weighted performance1636.7
Current official/published rating (highest between Raw, WR and WP)1660.9
Current highest rating achieved1660.9
Current floor (min rating allowed)1160.9
Current K-factor28
Games played this month5
Score (S)3.0
Expected score (We)4.16
Difference (S-We)-0.96
Current Raw change (no limits, including tournament time weight)-27.0
Current min/max change allowed (with limits)±86.0
Current Raw change used (final)-27.0
Projected new Raw rating1633.9
Projected new Weighed rating1409.9
Projected new Weighted performance1591.3
Projected new final Raw rating (if new WP > new Raw)1633.9
Projected new highest rating1660.9
Projected new floor1160.9
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1633.9
Projected effective change (new Official - current Official)-27.0
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 rating1696.4
Current Weighted rating1528.5
Current Weighted performance1670.2
Current official/published rating (highest between Raw, WR and WP)1696.4
Current highest rating achieved1696.4
Current floor (min rating allowed)1196.4
Current K-factor28
Games played this month5
Score (S)3.0
Expected score (We)4.33
Difference (S-We)-1.33
Current Raw change (no limits, including tournament time weight)-37.2
Current min/max change allowed (with limits)±81.7
Current Raw change used (final)-37.2
Projected new Raw rating1659.2
Projected new Weighed rating1411.2
Projected new Weighted performance1591.3
Projected new final Raw rating (if new WP > new Raw)1659.2
Projected new highest rating1696.4
Projected new floor1196.4
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1659.2
Projected effective change (new Official - current Official)-37.2
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 rating1266.4
Current Weighted rating1257.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1266.4
Current highest rating achieved1282.2
Current floor (min rating allowed)782.2
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)±150.8
Current Raw change used (final)0.0
Projected new Raw rating1266.4
Projected new Weighed rating1158.3
Projected new Weighted performance1221.0
Projected new final Raw rating (if new WP > new Raw)1266.4
Projected new highest rating1282.2
Projected new floor782.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1266.4
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
Tournament: Gauteng Schools Individuals Finals 2024 (U18 Boys)
Start: 2024/08/17  End: 2024/08/17  Host: GE  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1660.9  Rating gain/loss: -27.0
Type rating: 1696.4  Rating gain/loss: -37.2
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
14 Gauteng Schools Individuals Finals 2024 (U18 Boys) 2024/08/17 2024/08/17 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1660.9 1696.4 Analysis
13 JMC Closed 2024 (A) 2024/08/09 2024/08/11 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.0 1643.8 1677.4 Analysis
12 Ekurhuleni Trails 2 2024 (A) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 4 4 1.0 1616.6 1627.3 Analysis
11 JMC Trinityhouse Randpark Ridge 2024 (A) 2024/07/13 2024/07/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1616.6 1627.3 Analysis
10 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1616.6 1627.3 Analysis
9 Chess Molecules Open Chess Tournament 2024 (High School Open) 2024/06/15 2024/06/15 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.5 1646.2 1282.2 Analysis
8 2024 Milos Ristic Open Chess Tournament (A) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1568.9 1560.3 Analysis
7 2024 KSNG CHess Academy Open Tournament (B) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1568.9 1560.3 Analysis
6 1st Knights Open Tournament 2024 (A) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.5 1583.2 1583.7 Analysis
5 2024 Tshwane Chess AHS Open Chess Tournament (C2) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1544.4 1551.6 Analysis
4 2024 Constantiapark Open (C) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1544.4 1551.6 Analysis
3 JMC Kick Off Tournament 2024 (C) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1443.6 1426.3 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (C2) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1443.6 1426.3 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U16B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1443.6 1426.3 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
28 Gauteng Schools Individuals Finals 2024 (U18 Boys) 2024/08/17 2024/08/17 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1660.9 1696.4 Analysis
27 JMC Closed 2024 (A) 2024/08/09 2024/08/11 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.0 1643.8 1677.4 Analysis
26 Ekurhuleni Trails 2 2024 (A) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 4 4 1.0 1616.6 1627.3 Analysis
25 JMC Trinityhouse Randpark Ridge 2024 (A) 2024/07/13 2024/07/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1616.6 1627.3 Analysis
24 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1616.6 1627.3 Analysis
23 Chess Molecules Open Chess Tournament 2024 (High School Open) 2024/06/15 2024/06/15 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.5 1646.2 1282.2 Analysis
22 2024 Milos Ristic Open Chess Tournament (A) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1568.9 1560.3 Analysis
21 2024 KSNG CHess Academy Open Tournament (B) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1568.9 1560.3 Analysis
20 1st Knights Open Tournament 2024 (A) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.5 1583.2 1583.7 Analysis
19 2024 Tshwane Chess AHS Open Chess Tournament (C2) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1544.4 1551.6 Analysis
18 2024 Constantiapark Open (C) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1544.4 1551.6 Analysis
17 JMC Kick Off Tournament 2024 (C) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1443.6 1426.3 Analysis
16 2024 Tshwane Chess OPEN Registration Tournament (C2) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1443.6 1426.3 Analysis
15 2024 Gauteng Inter-Region Chess Championship (U16B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1443.6 1426.3 Analysis
14 Ekurhuleni North Chess Club 2023 (B) 2023/12/09 2023/12/09 Ekurhuleni (GE) Rapid 30 0.60 7 7 5.0 1431.1 1255.9 Analysis
13 Africawide Chess Championship 2023 (Open) 2023/11/03 2023/11/05 Johannesburg Metro (GJM) Standard 90 0.94 7 7 3.0 1447.9 1442.9 Analysis
12 Lardies Open Tournament 2023 (C) 2023/10/28 2023/10/28 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1429.0 1414.1 Analysis
11 2023 Tuks Open Chess Tournament (C) 2023/10/07 2023/10/07 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1429.0 1414.1 Analysis
10 Chess Molecules Rapid 2023 (High School Open) 2023/09/23 2023/09/23 Ekurhuleni (GE) Rapid 30 0.60 5 5 4.0 1415.6 1204.4 Analysis
9 2023 Gauteng Top Schools (U19 Mixed) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 3 2.0 1423.6 1423.7 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 75 40 7 28 43.5 58.0 68.0 1542.7 1610.7
White 39 23 3 13 24.5 62.8 109.0 1525.2 1634.2
Black 36 17 4 15 19.0 52.8 23.6 1561.5 1585.2
Standard All 70 38 6 26 41.0 58.6 72.9 1557.5 1630.4
White 36 22 2 12 23.0 63.9 118.1 1532.1 1650.1
Black 34 16 4 14 18.0 52.9 25.0 1584.4 1609.4
Rapid All 5 2 1 2 2.5 50.0 0.0 1335.1 1335.1
White 3 1 1 1 1.5 50.0 0.0 1443.6 1443.6
Black 2 1 0 1 1.0 50.0 0.0 1172.5 1172.5
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 146 87 9 50 91.5 62.7 107.7 1420.4 1528.1
White 74 47 4 23 49.0 66.2 137.8 1406.7 1544.5
Black 72 40 5 27 42.5 59.0 76.7 1434.5 1511.2
Standard All 124 73 8 43 77.0 62.1 102.8 1439.8 1542.6
White 62 38 3 21 39.5 63.7 116.5 1423.2 1539.7
Black 62 35 5 22 37.5 60.5 89.1 1456.4 1545.5
Rapid All 22 14 1 7 14.5 65.9 135.2 1311.1 1446.3
White 12 9 1 2 9.5 79.2 247.9 1321.4 1569.3
Black 10 5 0 5 5.0 50.0 0.0 1298.7 1298.7
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 1080107800 Ebrahim, Z (Zachary) 2 2.0 2 0 0 100.0 1375.6 425.0 1800.6 View list
2 1090105696 Barradas, K (Keanu) 2 2.0 2 0 0 100.0 1429.6 425.0 1854.6 View list
3 1060143728 Mathibela, A (Art) 2 2.0 2 0 0 100.0 1422.6 425.0 1847.6 View list
4 2110143800 Naidoo, D (Dhiya) 2 2.0 2 0 0 100.0 1508.4 425.0 1933.4 View list
5 1140135557 Thorulsley, K (Kairaav) 2 2.0 2 0 0 100.0 1543.7 425.0 1968.7 View list
6 173004580 Chikwava, R (Ronald) 2 1.0 1 0 1 50.0 1568.9 0.0 1568.9 View list
7 100080989 Nsibande, B (Bonisani) 2 1.0 1 0 1 50.0 1599.9 0.0 1599.9 View list
8 106066143 Waring, G (Gabriel) 2 1.0 1 0 1 50.0 1523.1 0.0 1523.1 View list
9 1100151738 Combrink, J (Juan-Louis) 2 0.0 0 0 2 0.0 1530.1 -425.0 1105.1 View list
10 1110118675 Buthelezi, Z (Zanokuhle) 1 1.0 1 0 0 100.0 1303.3 425.0 1728.3 View list
11 196004002 Buthelezi, N (Ncedo) 1 1.0 1 0 0 100.0 1616.6 425.0 2041.6 View list
12 1060305335 Busili, I (Ishmael) 1 1.0 1 0 0 100.0 1660.9 425.0 2085.9 View list
13 1120139501 Buitendag, D (Darius) 1 1.0 1 0 0 100.0 1306.9 425.0 1731.9 View list
14 2100097359 Bothma, J (Jaculene) 1 1.0 1 0 0 100.0 1431.1 425.0 1856.1 View list
15 1090305164 Beifus, A (Aiden) 1 1.0 1 0 0 100.0 1646.2 425.0 2071.2 View list
16 1120115958 Bazhko, A (Anton) 1 1.0 1 0 0 100.0 1211.0 425.0 1636.0 View list
17 108070894 Barnard, M (Martin) 1 1.0 1 0 0 100.0 1443.6 425.0 1868.6 View list
18 1080109892 Balassis, P (Petro) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
19 1500154190 Badenhorst, M (Michael) 1 1.0 1 0 0 100.0 1429.0 425.0 1854.0 View list
20 2120135695 Crowie, A (Allegra) 1 1.0 1 0 0 100.0 1211.0 425.0 1636.0 View list