Player Page

Coetsee, D (Dewald)
Dob: 2008/05/21 (U18)
Gender: Male
Chess SA id: 108064021
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/07/13 (14 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 rating1881.0
Current Weighted rating1745.6
Current Weighted performance1864.0
Current official/published rating (highest between Raw, WR and WP)1881.0
Current highest rating achieved1881.0
Current floor (min rating allowed)1381.0
Current K-factor24
Games played this month27
Score (S)16.5
Expected score (We)20.24
Difference (S-We)-3.23
Current Raw change (no limits, including tournament time weight)-77.5
Current min/max change allowed (with limits)±62.8
Current Raw change used (final)-77.5
Projected new Raw rating1803.5
Projected new Weighed rating1609.0
Projected new Weighted performance1750.0
Projected new final Raw rating (if new WP > new Raw)1803.5
Projected new highest rating1881.0
Projected new floor1381.0
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1803.5
Projected effective change (new Official - current Official)-77.5
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 rating1882.9
Current Weighted rating1752.9
Current Weighted performance1864.0
Current official/published rating (highest between Raw, WR and WP)1882.9
Current highest rating achieved1882.9
Current floor (min rating allowed)1382.9
Current K-factor24
Games played this month16
Score (S)9.5
Expected score (We)12.70
Difference (S-We)-3.20
Current Raw change (no limits, including tournament time weight)-76.8
Current min/max change allowed (with limits)±62.7
Current Raw change used (final)-76.8
Projected new Raw rating1806.1
Projected new Weighed rating1615.9
Projected new Weighted performance1806.8
Projected new final Raw rating (if new WP > new Raw)1806.8
Projected new highest rating1882.9
Projected new floor1382.9
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1806.8
Projected effective change (new Official - current Official)-76.1
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 rating1594.9
Current Weighted rating1435.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1594.9
Current highest rating achieved1594.9
Current floor (min rating allowed)1094.9
Current K-factor32
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)±94.5
Current Raw change used (final)0.0
Projected new Raw rating1594.9
Projected new Weighed rating1327.0
Projected new Weighted performance929.6
Projected new final Raw rating (if new WP > new Raw)1594.9
Projected new highest rating1594.9
Projected new floor1094.9
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1594.9
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 rating1227.6
Current Weighted rating1219.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1227.6
Current highest rating achieved1227.6
Current floor (min rating allowed)727.6
Current K-factor36
Games played this month11
Score (S)7.0
Expected score (We)4.44
Difference (S-We)2.56
Current Raw change (no limits, including tournament time weight)92.2
Current min/max change allowed (with limits)±159.4
Current Raw change used (final)92.2
Projected new Raw rating1319.8
Projected new Weighed rating1121.9
Projected new Weighted performance1195.3
Projected new final Raw rating (if new WP > new Raw)1319.8
Projected new highest rating1319.8
Projected new floor819.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1319.8
Projected effective change (new Official - current Official)+92.2
Tournaments
Tournament: DR KK Gimmies 2024 (A)
Start: 2024/07/13  End: 2024/07/13  Host: NWP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1881.0  Rating gain/loss: 0.8
Type rating: 1882.9  Rating gain/loss: -1.0
Analysis
Tournament: South African Open Chess Championship 2024 (Blitz)
Start: 2024/07/04  End: 2024/07/04  Host: KED  Type: Blitz   Time: 5  Time weight: 0.18  Rounds: 11
Games: 11  Score: 7.0
Main rating: 1881.0  Rating gain/loss: -2.7
Type rating: 1227.6  Rating gain/loss: 92.2
Analysis
Tournament: South African Open Chess Championship 2024 (A)
Start: 2024/06/29  End: 2024/07/07  Host: KED  Type: Standard   Time: 120  Time weight: 1.00  Rounds: 11
Games: 11  Score: 5.5
Main rating: 1881.0  Rating gain/loss: -62.8
Type rating: 1882.9  Rating gain/loss: -62.7
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
11 DR KK Gimmies 2024 (A) 2024/07/13 2024/07/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.0 1881.0 1882.9 Analysis
10 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 7.0 1881.0 1227.6 Analysis
9 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1881.0 1882.9 Analysis
8 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1812.8 1826.5 Analysis
7 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1812.8 1826.5 Analysis
6 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1780.9 1807.5 Analysis
5 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.0 1780.9 1807.5 Analysis
4 2024 Lubowski Open Chess Tournament (A) 2024/03/23 2024/03/24 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1779.6 1812.3 Analysis
3 2024 Chris Greyling Open Chess Tournament (Prestige) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1779.6 1812.3 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1715.3 1708.8 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U16A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1715.3 1708.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
79 DR KK Gimmies 2024 (A) 2024/07/13 2024/07/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.0 1881.0 1882.9 Analysis
78 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 7.0 1881.0 1227.6 Analysis
77 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1881.0 1882.9 Analysis
76 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1812.8 1826.5 Analysis
75 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1812.8 1826.5 Analysis
74 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1780.9 1807.5 Analysis
73 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.0 1780.9 1807.5 Analysis
72 2024 Lubowski Open Chess Tournament (A) 2024/03/23 2024/03/24 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1779.6 1812.3 Analysis
71 2024 Chris Greyling Open Chess Tournament (Prestige) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1779.6 1812.3 Analysis
70 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1715.3 1708.8 Analysis
69 2024 Gauteng Inter-Region Chess Championship (U16A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1715.3 1708.8 Analysis
68 2023 Centurion Chess Open (A) 2023/09/23 2023/09/23 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1754.3 1751.4 Analysis
67 2023 Etienne Lewis Closed Tournament (U16) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 7 7.0 1690.3 1692.9 Analysis
66 FIDE World Youth U16 Chess Olympiad 2023 2023/08/13 2023/08/18 Netherlands (NED) Rapid 55 0.80 9 8 4.5 1690.3 1215.8 Analysis
65 DR Kenneth Kaunda Volkies 29 Jul 2023 (A) 2023/07/29 2023/07/29 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.5 1674.3 1673.3 Analysis
64 2023 Lubowski Open Tournament (A) 2023/06/24 2023/06/25 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1701.4 1699.3 Analysis
63 2023 Elize Steenkamp Open Tournament (A) 2023/06/16 2023/06/17 Tshwane (GTP) Standard 90 0.94 6 6 3.0 1701.4 1699.3 Analysis
62 2023 Milos Ristic Open Tournament (A) 2023/04/27 2023/04/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1720.5 1720.0 Analysis
61 2023 South African Junior Closed Chess Championships (U16 Open) 2023/03/31 2023/04/04 Chess South Africa (CSA) Standard 120 1.00 9 9 5.0 1720.5 1720.0 Analysis
60 2023 Afrikaans Hoër Seunskool Open Chess Tournament (A) 2023/03/04 2023/03/04 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1741.9 1741.6 Analysis
1234
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 75 40 8 27 44.0 58.7 73.7 1750.9 1824.6
White 37 24 1 12 24.5 66.2 137.8 1714.5 1852.4
Black 38 16 7 15 19.5 51.3 11.2 1786.4 1797.5
Standard All 64 33 8 23 37.0 57.8 66.4 1756.8 1823.2
White 31 20 1 10 20.5 66.1 137.1 1722.6 1859.7
Black 33 13 7 13 16.5 50.0 0.0 1789.0 1789.0
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 11 7 0 4 7.0 63.6 115.9 1716.6 1832.5
White 6 4 0 2 4.0 66.7 141.7 1672.7 1814.4
Black 5 3 0 2 3.0 60.0 85.0 1769.2 1854.2
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 474 245 55 174 272.5 57.5 63.7 1440.5 1504.2
White 235 134 25 76 146.5 62.3 104.9 1415.4 1520.3
Black 239 111 30 98 126.0 52.7 23.1 1465.2 1488.4
Standard All 400 205 53 142 231.5 57.9 66.9 1443.6 1510.6
White 198 112 25 61 124.5 62.9 109.5 1413.4 1522.8
Black 202 93 28 81 107.0 53.0 25.2 1473.3 1498.5
Rapid All 27 16 1 10 16.5 61.1 94.4 1419.0 1513.4
White 14 8 0 6 8.0 57.1 60.7 1479.8 1540.5
Black 13 8 1 4 8.5 65.4 130.8 1353.5 1484.3
Blitz All 47 24 1 22 24.5 52.1 18.1 1426.7 1444.8
White 23 14 0 9 14.0 60.9 92.4 1394.1 1486.5
Black 24 10 1 13 10.5 43.8 -53.1 1458.0 1404.9
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 108045082 Koning, L (Lehan) 7 4.5 3 3 1 64.3 1443.4 121.4 1564.8 View list
2 108076196 Potgieter, E (Edward) 7 3.5 3 1 3 50.0 1457.6 0.0 1457.6 View list
3 109086379 Jacobs, CN (Calvin Nicholas) 7 1.5 1 1 5 21.4 1539.7 -242.9 1296.8 View list
4 108082684 De Vries, MA (Andrio) 6 5.0 5 0 1 83.3 1513.8 283.3 1797.1 View list
5 108052034 Du Toit, SJM (Stephanus (Matteo)) 5 4.0 4 0 1 80.0 1383.3 255.0 1638.3 View list
6 110086011 Felix, R (Raphael) 5 3.5 3 1 1 70.0 1592.6 170.0 1762.6 View list
7 107086377 Jacobs, TB (Tiaan Benjamin) 5 2.5 2 1 2 50.0 1412.7 0.0 1412.7 View list
8 107046393 Fourie, K (Keanan) 5 2.0 2 0 3 40.0 1347.3 -85.0 1262.3 View list
9 109069454 Sathish, A (Abinavah) 5 2.0 1 2 2 40.0 1504.3 -85.0 1419.3 View list
10 184019054 Mabusela, JM (Johannes) 5 0.0 0 0 5 0.0 1717.3 -425.0 1292.3 View list
11 108079781 Soojay, J (Jorah) 5 0.0 0 0 5 0.0 1518.4 -425.0 1093.4 View list
12 106060952 Viljoen, J (Jaden) 4 3.0 3 0 1 75.0 1302.3 212.5 1514.8 View list
13 107050552 Van Der Westhuizen, F (Frederik) 4 3.0 2 2 0 75.0 1357.2 212.5 1569.7 View list
14 108064849 Ziegenhagen, V (Vian Luke) 4 2.0 2 0 2 50.0 1440.2 0.0 1440.2 View list
15 109083783 Kushar, T (Tristan) 3 3.0 3 0 0 100.0 1444.4 425.0 1869.4 View list
16 108086541 Louw, R (Raynor) 3 3.0 3 0 0 100.0 1607.0 425.0 2032.0 View list
17 108057851 Malan, H (Henco) 3 2.5 2 1 0 83.3 1242.2 283.3 1525.5 View list
18 1070104078 Price, DR (Daelen) 3 2.5 2 1 0 83.3 1650.6 283.3 1933.9 View list
19 105090318 Shuping, O (Omphile) 3 2.5 2 1 0 83.3 1548.6 283.3 1831.9 View list
20 204047328 Fourie, EM (Elzette) 3 2.0 2 0 1 66.7 1533.9 141.7 1675.6 View list