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: 2024/11/02 (19 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 rating1484.3
Current Weighted rating1460.1
Current Weighted performance1346.5
Current official/published rating (highest between Raw, WR and WP)1484.3
Current highest rating achieved1508.1
Current floor (min rating allowed)1008.1
Current K-factor32
Games played this month12
Score (S)5.0
Expected score (We)7.05
Difference (S-We)-0.87
Current Raw change (no limits, including tournament time weight)-27.8
Current min/max change allowed (with limits)±110.6
Current Raw change used (final)-27.8
Projected new Raw rating1456.5
Projected new Weighed rating1346.4
Projected new Weighted performance1298.3
Projected new final Raw rating (if new WP > new Raw)1456.5
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)1456.5
Projected effective change (new Official - current Official)-27.8
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 rating1406.7
Current Weighted performance1353.4
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 month5
Score (S)3.0
Expected score (We)3.51
Difference (S-We)-0.51
Current Raw change (no limits, including tournament time weight)-16.3
Current min/max change allowed (with limits)±116.6
Current Raw change used (final)-16.3
Projected new Raw rating1430.7
Projected new Weighed rating1296.4
Projected new Weighted performance1373.9
Projected new final Raw rating (if new WP > new Raw)1430.7
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)1430.7
Projected effective change (new Official - current Official)-16.3
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 rating1215.5
Current Weighted rating1051.2
Current Weighted performance1379.7
Current official/published rating (highest between Raw, WR and WP)1379.7
Current highest rating achieved1215.5
Current floor (min rating allowed)715.5
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)±162.2
Current Raw change used (final)0.0
Projected new Raw rating1215.5
Projected new Weighed rating975.0
Projected new Weighted performance1379.7
Projected new final Raw rating (if new WP > new Raw)1379.7
Projected new highest rating1379.7
Projected new floor879.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1379.7
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 rating974.8
Current Weighted rating974.3
Current Weighted performance1009.2
Current official/published rating (highest between Raw, WR and WP)1009.2
Current highest rating achieved974.8
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month7
Score (S)2.0
Expected score (We)1.22
Difference (S-We)0.78
Current Raw change (no limits, including tournament time weight)31.2
Current min/max change allowed (with limits)±228.5
Current Raw change used (final)31.2
Projected new Raw rating1006.0
Projected new Weighed rating896.6
Projected new Weighted performance1112.8
Projected new final Raw rating (if new WP > new Raw)1112.8
Projected new highest rating1112.8
Projected new floor612.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1112.8
Projected effective change (new Official - current Official)+103.6
Tournaments
Tournament: Eden Gambit Chess Tournament 2024 (B)
Start: 2024/11/02  End: 2024/11/02  Host: WEG  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1484.3  Rating gain/loss: -13.5
Type rating: 1447.0  Rating gain/loss: -16.3
Analysis
Tournament: Eden Gambit Chess Tournament 2024 (Blitz)
Start: 2024/11/01  End: 2024/11/01  Host: WEG  Type: Blitz   Time: 10  Time weight: 0.29  Rounds: 7
Games: 7  Score: 2.0
Main rating: 1484.3  Rating gain/loss: -14.3
Type rating: 974.8  Rating gain/loss: 31.2
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
7 Eden Gambit Chess Tournament 2024 (B) 2024/11/02 2024/11/02 Eden (WEG) Standard 60 0.83 5 5 3.0 1484.3 1447.0 Analysis
6 Eden Gambit Chess Tournament 2024 (Blitz) 2024/11/01 2024/11/01 Eden (WEG) Blitz 10 0.29 7 7 2.0 1484.3 974.8 Analysis
5 Eden Rapid 2024 (A) 2024/08/03 2024/08/03 Eden (WEG) Rapid 30 0.60 6 6 2.0 1508.1 1164.1 Analysis
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
46 Eden Gambit Chess Tournament 2024 (B) 2024/11/02 2024/11/02 Eden (WEG) Standard 60 0.83 5 5 3.0 1484.3 1447.0 Analysis
45 Eden Gambit Chess Tournament 2024 (Blitz) 2024/11/01 2024/11/01 Eden (WEG) Blitz 10 0.29 7 7 2.0 1484.3 974.8 Analysis
44 Eden Rapid 2024 (A) 2024/08/03 2024/08/03 Eden (WEG) Rapid 30 0.60 6 6 2.0 1508.1 1164.1 Analysis
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
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 46 24 4 18 26.0 56.5 55.4 1422.7 1478.2
White 25 13 3 9 14.5 58.0 68.0 1424.7 1492.7
Black 21 11 1 9 11.5 54.8 40.5 1420.4 1460.9
Standard All 21 12 3 6 13.5 64.3 121.4 1356.7 1478.1
White 11 7 2 2 8.0 72.7 193.2 1333.5 1526.7
Black 10 5 1 4 5.5 55.0 42.5 1382.2 1424.7
Rapid All 18 10 1 7 10.5 58.3 70.8 1476.6 1547.4
White 10 6 1 3 6.5 65.0 127.5 1427.9 1555.4
Black 8 4 0 4 4.0 50.0 0.0 1537.5 1537.5
Blitz All 7 2 0 5 2.0 28.6 -182.1 1482.3 1300.2
White 4 0 0 4 0.0 0.0 -425.0 1667.4 1242.4
Black 3 2 0 1 2.0 66.7 141.7 1235.6 1377.3
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 262 137 26 99 150.0 57.3 61.6 1266.9 1328.6
White 133 77 14 42 84.0 63.2 111.8 1263.7 1375.6
Black 129 60 12 57 66.0 51.2 9.9 1270.2 1280.1
Standard All 194 102 24 68 114.0 58.8 74.5 1222.7 1297.1
White 97 59 12 26 65.0 67.0 144.6 1208.3 1352.9
Black 97 43 12 42 49.0 50.5 4.4 1237.0 1241.4
Rapid All 29 17 1 11 17.5 60.3 87.9 1427.1 1515.1
White 16 9 1 6 9.5 59.4 79.7 1434.5 1514.1
Black 13 8 0 5 8.0 61.5 98.1 1418.1 1516.2
Blitz All 39 18 1 20 18.5 47.4 -21.8 1367.9 1346.1
White 20 9 1 10 9.5 47.5 -21.3 1396.0 1374.7
Black 19 9 0 10 9.0 47.4 -22.4 1338.4 1316.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 105088335 Taute, C (Clayden) 8 2.0 2 0 6 25.0 1240.2 -212.5 1027.7 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 198013875 Jansen Van Rensburg, R (Ruan) 4 0.5 0 1 3 12.5 1332.6 -318.8 1013.9 View list
6 105078148 Botha, J (Jonathan) 3 3.0 3 0 0 100.0 1315.6 425.0 1740.6 View list
7 1660118616 Lewis, M (Mark) 3 3.0 3 0 0 100.0 1291.0 425.0 1716.0 View list
8 104049062 Lewis, T (Tyler) 3 3.0 3 0 0 100.0 1062.7 425.0 1487.7 View list
9 107086423 Heesen, T (Tyler) 3 2.0 2 0 1 66.7 1252.5 141.7 1394.2 View list
10 2120116532 Cornforth, K (Kayleigh) 3 2.0 1 2 0 66.7 1407.5 141.7 1549.2 View list
11 1060118499 Claassen, R (Ruwaldo) 3 1.5 1 1 1 50.0 1274.4 0.0 1274.4 View list
12 1090150037 Hone, R (Ryan) 3 1.5 1 1 1 50.0 1374.1 0.0 1374.1 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