Player Page

Van Der Merwe, A (Alexander)
Dob: 2005/05/04 (U20)
Gender: Male
Chess SA id: 105057149
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/01/04 (162 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 rating2038.0
Current Weighted rating1998.5
Current Weighted performance1788.5
Current official/published rating (highest between Raw, WR and WP)2038.0
Current highest rating achieved2038.0
Current floor (min rating allowed)1538.0
Current K-factor20
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)±50.2
Current Raw change used (final)0.0
Projected new Raw rating2038.0
Projected new Weighed rating1841.2
Projected new Weighted performance1788.5
Projected new final Raw rating (if new WP > new Raw)2038.0
Projected new highest rating2038.0
Projected new floor1538.0
Projected new K-facor20
Projected new official/published rating (highest between new Raw, new WR and new WP)2038.0
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 rating2047.5
Current Weighted rating2003.2
Current Weighted performance1796.6
Current official/published rating (highest between Raw, WR and WP)2047.5
Current highest rating achieved2047.5
Current floor (min rating allowed)1547.5
Current K-factor20
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)±49.6
Current Raw change used (final)0.0
Projected new Raw rating2047.5
Projected new Weighed rating1845.5
Projected new Weighted performance1796.6
Projected new final Raw rating (if new WP > new Raw)2047.5
Projected new highest rating2047.5
Projected new floor1547.5
Projected new K-facor20
Projected new official/published rating (highest between new Raw, new WR and new WP)2047.5
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 rating1835.7
Current Weighted rating1734.5
Current Weighted performance1253.5
Current official/published rating (highest between Raw, WR and WP)1835.7
Current highest rating achieved1835.7
Current floor (min rating allowed)1335.7
Current K-factor24
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)±67.0
Current Raw change used (final)0.0
Projected new Raw rating1835.7
Projected new Weighed rating1598.7
Projected new Weighted performance1253.5
Projected new final Raw rating (if new WP > new Raw)1835.7
Projected new highest rating1835.7
Projected new floor1335.7
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1835.7
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 rating1555.0
Current Weighted rating1526.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1555.0
Current highest rating achieved1571.1
Current floor (min rating allowed)1071.1
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)±100.0
Current Raw change used (final)0.0
Projected new Raw rating1555.0
Projected new Weighed rating1404.7
Projected new Weighted performance795.5
Projected new final Raw rating (if new WP > new Raw)1555.0
Projected new highest rating1571.1
Projected new floor1071.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1555.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 XXXIV Miedzynarodowy Festiwal Szachowy CRACOVIA 2023 2023/12/27 2024/01/04 Poland (POL) Standard 150 1.00 9 8 3.0 2000.6 2011.7 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
61 XXXIV Miedzynarodowy Festiwal Szachowy CRACOVIA 2023 2023/12/27 2024/01/04 Poland (POL) Standard 150 1.00 9 8 3.0 2000.6 2011.7 Analysis
60 2023 SA Schools Winter Games (U18 Open) 2023/07/04 2023/07/06 West Rand (GWR) Standard 65 0.85 7 7 6.5 1992.0 1990.9 Analysis
59 Hermanus Rapid 2023 (A) 2023/04/22 2023/04/22 Overberg (WOS) Rapid 25 0.54 6 6 4.5 1989.0 1639.4 Analysis
58 Western Cape HS Individuals 2023 (U19 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 5.5 1989.0 1983.2 Analysis
57 Cape Winelands Schools Chess - Trials 1 2023 (U19 Boys) 2023/02/25 2023/02/25 Cape Winelands (WCW) Standard 60 0.83 5 5 5.0 1988.6 1982.7 Analysis
56 XXXIII Miedzynarodowy Festiwal Szachowy CRACOVIA 2022 2022/12/27 2023/01/04 Poland (POL) Standard 150 1.00 9 9 7.0 1896.1 1899.7 Analysis
55 World Junior Chess Championship 2022 2022/10/12 2022/10/22 FIDE (FID) Standard 150 1.00 11 11 4.5 1836.9 1854.3 Analysis
54 Western Cape Closed Championship 2022 (Championship) 2022/09/24 2022/09/25 Cape Winelands (WCW) Standard 70 0.87 6 6 4.0 1800.8 1819.5 Analysis
53 Western Cape Top Schools 2022 (U18 Mix) 2022/09/16 2022/09/17 Overberg (WOS) Standard 60 0.83 5 5 5.0 1800.8 1819.5 Analysis
52 Cape Winelands Schools Top Schools 2022 (U18 Mix) 2022/08/27 2022/08/27 Cape Winelands (WCW) Standard 60 0.83 5 5 4.5 1803.0 1824.8 Analysis
51 2022 Western Province Club League (Premier) 2022/08/20 2022/10/01 Cape Town (WCT) Standard 120 1.00 11 5 2.5 1836.9 1854.3 Analysis
50 South African Open 2022 (Blitz) 2022/07/14 2022/07/14 Cape Town (WCT) Blitz 5 0.18 10 10 6.0 1854.1 1571.1 Analysis
49 South African Open 2022 (Championship) 2022/07/09 2022/07/17 Cape Town (WCT) Standard 120 1.00 11 11 6.0 1854.1 1873.3 Analysis
48 WP Closed 2022 (A) 2022/06/16 2022/06/16 Cape Town (WCT) Standard 120 1.00 7 7 1.5 1885.1 1905.0 Analysis
47 South African Junior Closed Chess Championships 2022 (U18 Open) 2022/03/28 2022/04/02 Chess South Africa (CSA) Standard 120 1.00 11 10 9.5 1852.5 1878.8 Analysis
46 Western Cape Inter Region Cup 2021 (Senior) 2022/03/04 2022/03/06 West Coast (WCU) Standard 90 0.94 5 4 3.5 1843.7 1870.6 Analysis
45 2022 Cape Of Good Hope Open (Championship) 2022/01/28 2022/01/30 Cape Town (WCT) Standard 90 0.94 6 6 4.5 1803.5 1807.1 Analysis
44 Kraaifontein Open 2022 (Championship) 2022/01/07 2022/01/09 Cape Town (WCT) Standard 90 0.94 6 6 4.0 1803.5 1807.1 Analysis
43 Western Cape Schools 2021 (U18 Boys) 2021/10/23 2021/10/23 Overberg (WOS) Rapid 35 0.66 5 5 4.0 1801.7 1591.4 Analysis
42 Cape Winelands Schools Trials 2021 (U18 Boys) 2021/10/16 2021/10/16 Cape Winelands (WCW) Rapid 30 0.60 5 5 5.0 1801.7 1591.4 Analysis
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Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 4 1 0 3 1.0 25.0 -212.5 2374.9 2162.4
White 2 1 0 1 1.0 50.0 0.0 2307.4 2307.4
Black 2 0 0 2 0.0 0.0 -425.0 2442.5 2017.5
Standard All 4 1 0 3 1.0 25.0 -212.5 2374.9 2162.4
White 2 1 0 1 1.0 50.0 0.0 2307.4 2307.4
Black 2 0 0 2 0.0 0.0 -425.0 2442.5 2017.5
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 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 414 239 63 112 270.5 65.3 130.4 1594.8 1725.2
White 205 116 30 59 131.0 63.9 118.2 1597.3 1715.5
Black 209 123 33 53 139.5 66.7 142.3 1592.3 1734.6
Standard All 307 160 57 90 188.5 61.4 96.9 1664.6 1761.5
White 154 77 28 49 91.0 59.1 77.3 1659.8 1737.1
Black 153 83 29 41 97.5 63.7 116.7 1669.4 1786.0
Rapid All 70 58 5 7 60.5 86.4 309.6 1312.7 1622.3
White 33 28 2 3 29.0 87.9 322.0 1311.2 1633.2
Black 37 30 3 4 31.5 85.1 298.6 1314.0 1612.7
Blitz All 37 21 1 15 21.5 58.1 68.9 1549.5 1618.5
White 18 11 0 7 11.0 61.1 94.4 1587.5 1682.0
Black 19 10 1 8 10.5 55.3 44.7 1513.5 1558.3
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 105090611 Mnyasta, T (Tezihano) 10 4.5 4 1 5 45.0 1753.3 -42.5 1710.8 View list
2 197076467 Mncwabe, M (Minenhle Junior) 6 3.5 2 3 1 58.3 1729.6 70.8 1800.5 View list
3 104006413 De Jager, AJ (Andreas) 6 2.0 1 2 3 33.3 1698.9 -141.7 1557.2 View list
4 107053637 Palmer, RN (Reegan) 5 5.0 5 0 0 100.0 1734.7 425.0 2159.7 View list
5 1050097108 Segelaar, G (Geriant) 5 4.5 4 1 0 90.0 1798.5 340.0 2138.5 View list
6 101033066 Samuels, ER (Ethan) 5 1.0 1 0 4 20.0 1726.7 -255.0 1471.7 View list
7 293034027 Selkirk, RJ (Rebecca) 4 2.5 2 1 1 62.5 1685.4 106.3 1791.6 View list
8 100040966 Van Zyl, A (Albrecht) 4 2.0 2 0 2 50.0 1789.3 0.0 1789.3 View list
9 105077311 Brander, WWM (Waylon) 4 2.0 1 2 1 50.0 1754.3 0.0 1754.3 View list
10 184042918 Willenberg, KS (Kenneth) 4 1.0 0 2 2 25.0 1741.6 -212.5 1529.1 View list
11 105000068 Abrahams, B (Basheer) 3 3.0 3 0 0 100.0 1646.0 425.0 2071.0 View list
12 1050106200 Braaf, J (Jiraan) 3 3.0 3 0 0 100.0 1749.1 425.0 2174.1 View list
13 105088335 Taute, C (Clayden) 3 3.0 3 0 0 100.0 1881.6 425.0 2306.6 View list
14 104046622 Coetzee, P (Philip) 3 2.5 2 1 0 83.3 1657.8 283.3 1941.1 View list
15 106078134 Geyser, K (Kobus) 3 2.5 2 1 0 83.3 1738.7 283.3 2022.0 View list
16 105058538 Smit, D (Devon) 3 2.5 2 1 0 83.3 1595.4 283.3 1878.7 View list
17 102071991 Hemeni, S (Simamnkele) 3 2.0 2 0 1 66.7 1729.5 141.7 1871.2 View list
18 108072311 Karsten, JD (Jan) 3 2.0 2 0 1 66.7 1801.2 141.7 1942.9 View list
19 105009732 Fourie, B (Brandon) 3 2.0 1 2 0 66.7 1660.6 141.7 1802.2 View list
20 163002189 Bhawoodien, SH (Shabier) 3 1.5 1 1 1 50.0 1829.8 0.0 1829.8 View list