Player Page

Kiewiet, M (Marvin)
Dob: 2005/03/28 (U20)
Gender: Male
Chess SA id: 105078131
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/05/12 (74 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 rating1508.1
Current Weighted rating1430.5
Current Weighted performance1466.9
Current official/published rating (highest between Raw, WR and WP)1508.1
Current highest rating achieved1508.1
Current floor (min rating allowed)1008.1
Current K-factor32
Games played this month-4
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)±106.9
Current Raw change used (final)0.0
Projected new Raw rating1508.1
Projected new Weighed rating1319.9
Projected new Weighted performance1466.9
Projected new final Raw rating (if new WP > new Raw)1508.1
Projected new highest rating1508.1
Projected new floor1008.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1508.1
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 rating1447.0
Current Weighted rating1378.6
Current Weighted performance1414.4
Current official/published rating (highest between Raw, WR and WP)1447.0
Current highest rating achieved1447.0
Current floor (min rating allowed)947.0
Current K-factor32
Games played this month-4
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)±116.6
Current Raw change used (final)0.0
Projected new Raw rating1447.0
Projected new Weighed rating1270.9
Projected new Weighted performance1414.4
Projected new final Raw rating (if new WP > new Raw)1447.0
Projected new highest rating1447.0
Projected new floor947.0
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1447.0
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 rating1164.1
Current Weighted rating954.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1164.1
Current highest rating achieved1164.1
Current floor (min rating allowed)664.1
Current K-factor40
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)±174.5
Current Raw change used (final)0.0
Projected new Raw rating1164.1
Projected new Weighed rating885.1
Projected new Weighted performance1365.8
Projected new final Raw rating (if new WP > new Raw)1365.8
Projected new highest rating1365.8
Projected new floor865.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1365.8
Projected effective change (new Official - current Official)+201.7
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 rating974.8
Current Weighted rating972.3
Current Weighted performance1065.4
Current official/published rating (highest between Raw, WR and WP)1065.4
Current highest rating achieved974.8
Current floor (min rating allowed)500.0
Current K-factor40
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)±228.5
Current Raw change used (final)0.0
Projected new Raw rating974.8
Projected new Weighed rating895.0
Projected new Weighted performance1065.4
Projected new final Raw rating (if new WP > new Raw)1065.4
Projected new highest rating1065.4
Projected new floor565.4
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1065.4
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
4 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 4.0 1506.0 1435.8 Analysis
3 Eden Chess Trials 2 2024 (U20) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 6.5 1488.4 1399.0 Analysis
2 Waboomskraal Chess Club Open 2024 2024/04/06 2024/04/06 Eden District (WEG) Rapid 20 0.47 7 6 4.0 1488.4 1072.1 Analysis
1 Southern Knights Rapid 2024 (Senior) 2024/02/24 2024/02/24 Eden District (WEG) Rapid 30 0.60 6 6 4.5 1460.2 942.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
43 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 4.0 1506.0 1435.8 Analysis
42 Eden Chess Trials 2 2024 (U20) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 6.5 1488.4 1399.0 Analysis
41 Waboomskraal Chess Club Open 2024 2024/04/06 2024/04/06 Eden District (WEG) Rapid 20 0.47 7 6 4.0 1488.4 1072.1 Analysis
40 Southern Knights Rapid 2024 (Senior) 2024/02/24 2024/02/24 Eden District (WEG) Rapid 30 0.60 6 6 4.5 1460.2 942.5 Analysis
39 Eden Chess Union League 2023 (1st Division) 2023/11/11 2023/11/11 Eden District (WEG) Standard 60 0.83 5 5 2.5 1446.8 1364.3 Analysis
38 Mossel Bay Open 2023 (B) 2023/09/30 2023/10/01 Eden District (WEG) Standard 90 0.94 6 5 4.0 1419.4 1343.5 Analysis
37 Western Cape Top Schools 2023 (U18 Mixed) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 6 6 4.5 1376.7 1310.5 Analysis
36 Pacaltsdorp Chess Club Open 2023 (B) 2023/08/26 2023/08/26 Eden District (WEG) Rapid 30 0.60 6 6 6.0 1298.8 726.1 Analysis
35 Eden Top Schools 2023 (U18 Mix) 2023/08/19 2023/08/19 Eden District (WEG) Standard 60 0.83 5 5 3.5 1298.8 1296.7 Analysis
34 George Chess Club Winter Open 2023 (B) 2023/05/20 2023/05/20 Eden District (WEG) Standard 60 0.83 5 4 2.0 1363.3 1373.5 Analysis
33 Eden Trials 2+3 2023 (U20) 2023/04/15 2023/05/13 Eden District (WEG) Standard 60 0.83 10 10 5.5 1363.3 1373.5 Analysis
32 Western Cape HS Individuals 2023 (U19 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 3.5 1380.6 1402.0 Analysis
31 Western Cape Inter Regional 2023 (Junior Boys) 2023/03/18 2023/03/19 Eden District (WEG) Standard 90 0.94 5 4 2.0 1341.7 1325.5 Analysis
30 Western Cape Inter Regional 2023 (Blitz) 2023/03/17 2023/03/17 Eden District (WEG) Blitz 5 0.18 5 4 1.0 1341.7 948.5 Analysis
29 Eden Trails 1 2023 (U19 Boys) 2023/03/11 2023/03/11 Eden District (WEG) Standard 60 0.83 5 5 4.0 1341.7 1325.5 Analysis
28 Mossel Bay Schools Trials 2 2023 (U19 Boys) 2023/02/18 2023/02/18 Eden District (WEG) Standard 60 0.83 6 4 2.0 1326.4 1306.8 Analysis
27 Mossel Bay Schools Trials 1 2023 (U19 Boys) 2023/01/28 2023/01/28 Eden District (WEG) Standard 60 0.83 4 4 3.0 1263.8 1262.7 Analysis
26 Mossel Bay Open 2022 (B) 2022/09/30 2022/10/02 Eden District (WEG) Standard 90 0.94 6 6 3.0 1253.0 1253.7 Analysis
25 Western Cape Top Schools 2022 (U18 Mix) 2022/09/16 2022/09/17 Overberg (WOS) Standard 60 0.83 5 5 2.5 1229.4 1229.6 Analysis
24 Interclub Blitz Evening 2022 2022/08/11 2022/08/11 Eden District (WEG) Blitz 5 0.18 6 6 5.0 1213.1 918.9 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 28 17 4 7 19.0 67.9 151.8 1416.0 1567.8
White 15 9 3 3 10.5 70.0 170.0 1408.3 1578.3
Black 13 8 1 4 8.5 65.4 130.8 1424.9 1555.6
Standard All 16 9 3 4 10.5 65.6 132.8 1369.2 1502.0
White 8 5 2 1 6.0 75.0 212.5 1352.4 1564.9
Black 8 4 1 3 4.5 56.3 53.1 1386.1 1439.2
Rapid All 12 8 1 3 8.5 70.8 177.1 1478.4 1655.5
White 7 4 1 2 4.5 64.3 121.4 1472.2 1593.7
Black 5 4 0 1 4.0 80.0 255.0 1487.0 1742.0
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 244 130 26 88 143.0 58.6 73.2 1254.6 1327.8
White 123 73 14 36 80.0 65.0 127.8 1248.6 1376.5
Black 121 57 12 52 63.0 52.1 17.6 1260.8 1278.3
Standard All 189 99 24 66 111.0 58.7 74.2 1220.2 1294.4
White 94 57 12 25 63.0 67.0 144.7 1205.9 1350.6
Black 95 42 12 41 48.0 50.5 4.5 1234.3 1238.8
Rapid All 23 15 1 7 15.5 67.4 147.8 1415.1 1563.0
White 13 7 1 5 7.5 57.7 65.4 1459.9 1525.3
Black 10 8 0 2 8.0 80.0 255.0 1357.0 1612.0
Blitz All 32 16 1 15 16.5 51.6 13.3 1342.9 1356.2
White 16 9 1 6 9.5 59.4 79.7 1328.1 1407.8
Black 16 7 0 9 7.0 43.8 -53.1 1357.6 1304.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 105088335 Taute, C (Clayden) 7 2.0 2 0 5 28.6 1201.9 -182.1 1019.8 View list
2 105091180 Barends, X (Xavier) 5 4.0 4 0 1 80.0 1336.7 255.0 1591.7 View list
3 1040136864 Buis, H (Henley) 4 4.0 4 0 0 100.0 1261.0 425.0 1686.0 View list
4 1060098449 Joubert, K (Kyle) 4 2.0 2 0 2 50.0 1215.4 0.0 1215.4 View list
5 105078148 Botha, J (Jonathan) 3 3.0 3 0 0 100.0 1315.6 425.0 1740.6 View list
6 1660118616 Lewis, M (Mark) 3 3.0 3 0 0 100.0 1291.0 425.0 1716.0 View list
7 104049062 Lewis, T (Tyler) 3 3.0 3 0 0 100.0 1062.7 425.0 1487.7 View list
8 107086423 Heesen, T (Tyler) 3 2.0 2 0 1 66.7 1252.5 141.7 1394.2 View list
9 2120116532 Cornforth, K (Kayleigh) 3 2.0 1 2 0 66.7 1407.5 141.7 1549.2 View list
10 1060118499 Claassen, R (Ruwaldo) 3 1.5 1 1 1 50.0 1274.4 0.0 1274.4 View list
11 1090150037 Hone, R (Ryan) 3 1.5 1 1 1 50.0 1374.1 0.0 1374.1 View list
12 198013875 Jansen Van Rensburg, R (Ruan) 3 0.5 0 1 2 16.7 1274.1 -283.3 990.8 View list
13 1120119459 Brink, A (Andrew) 2 2.0 2 0 0 100.0 1453.5 425.0 1878.5 View list
14 102083818 Bush, P (Pernill) 2 2.0 2 0 0 100.0 974.2 425.0 1399.2 View list
15 287094417 Conradie, M (Magda) 2 2.0 2 0 0 100.0 1330.6 425.0 1755.6 View list
16 105060444 Edwards, B (Brandon) 2 2.0 2 0 0 100.0 1356.0 425.0 1781.0 View list
17 1050145222 Fortuin, J (Jordan) 2 2.0 2 0 0 100.0 1320.3 425.0 1745.3 View list
18 1120130129 Francis, A (Aaron) 2 2.0 2 0 0 100.0 1474.3 425.0 1899.3 View list
19 1040117280 Galant, J (Jaydene) 2 2.0 2 0 0 100.0 974.2 425.0 1399.2 View list
20 1070140088 Gilbert, C (Calray) 2 2.0 2 0 0 100.0 1276.3 425.0 1701.3 View list