Player Page

Verhoef, J (Jan-Meyer)
Dob: 1999/07/12 (Adult)
Gender: Male
Chess SA id: 199041499
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s): PA
Last active: 2023/12/08 (157 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
Curent Raw rating1715.9
Curent Weighted rating1729.2
Curent Weighted performance1389.1
Current official/published rating (highest between Raw, WR and WP)1729.2
Current floor (min rating allowed)1244.0
Current highest rating achieved1744.0
Current K-factor28
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)±79.5
Current Raw change used (final)0.0
Projected new Raw rating1715.9
Projected new Weighed rating1728.1
Projected new Weighted performance1389.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1728.1
Projected effective change (new Official - current Official)-1.0
Projected new highest rating1744.0
Projected new floor1244.0
Projected new K-facor28
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
Curent Raw rating1723.0
Curent Weighted rating1734.3
Curent Weighted performance1385.0
Current official/published rating (highest between Raw, WR and WP)1734.3
Current floor (min rating allowed)1247.8
Current highest rating achieved1747.8
Current K-factor28
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)±78.7
Current Raw change used (final)0.0
Projected new Raw rating1723.0
Projected new Weighed rating1733.4
Projected new Weighted performance1385.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1733.4
Projected effective change (new Official - current Official)-0.9
Projected new highest rating1747.8
Projected new floor1247.8
Projected new K-facor28
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
Curent Raw rating1545.1
Curent Weighted rating1545.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1545.1
Current floor (min rating allowed)1074.0
Current highest rating achieved1574.0
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)±101.4
Current Raw change used (final)0.0
Projected new Raw rating1545.1
Projected new Weighed rating1545.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1545.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1574.0
Projected new floor1074.0
Projected new K-facor32
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
Curent Raw rating1588.9
Curent Weighted rating1585.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1588.9
Current floor (min rating allowed)1074.0
Current highest rating achieved1588.9
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)±95.3
Current Raw change used (final)0.0
Projected new Raw rating1588.9
Projected new Weighed rating1586.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1588.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1588.9
Projected new floor1074.0
Projected new K-facor32
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 2023 USSA Championships (Open) 2023/12/04 2023/12/08 Ethekwini (KED) Standard 120 1.00 9 9 6.5 1744.0 1747.8 Analysis
14 Ussa Chess Championships 2022 (Open) 2022/12/05 2022/12/09 Frances Baard (NCF) Standard 120 1.00 9 9 6.5 1712.6 1718.4 Analysis
13 USSA Closed 2022 (Open) 2022/05/13 2022/05/15 Dr Kenneth Kaunda (NWP) Standard 90 0.94 7 7 4.5 1720.0 1725.1 Analysis
12 2021 Alekhine Open (A) 2021/08/14 2021/08/15 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1662.1 1664.1 Analysis
11 JNW Club - Trinityhouse Little Falls Open 2020 (A) 2020/03/14 2020/03/14 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1649.6 1635.9 Analysis
10 2020 Wynie Robbertse Open Chess Tournament (A) 2020/03/07 2020/03/07 Tshwane (GTP) Standard 60 0.83 5 3 1.0 1649.6 1635.9 Analysis
9 2019 USSA Championships (Blitz) 2019/12/04 2019/12/04 Sarah Baartman (ESB) Blitz 5 0.18 9 9 7.0 1601.0 1535.1 Analysis
8 2019 USSA Championships (Open) 2019/12/02 2019/12/06 Sarah Baartman (ESB) Standard 90 0.94 9 9 6.5 1601.0 1590.5 Analysis
7 2019 Alekhine Open (A) 2019/08/09 2019/08/10 Tshwane (GTP) Standard 120 1.00 5 5 2.0 1615.6 1604.2 Analysis
6 Eureka Chess Open 2019 (A) 2019/07/27 2019/07/27 Sedibeng (GSV) Standard 61 0.83 5 5 2.0 1596.7 1575.1 Analysis
5 2019 SWVG Arnold Classic (Blitz Open) 2019/05/19 2019/05/19 Tshwane (GTP) Blitz 5 0.18 10 10 7.0 1570.1 1536.1 Analysis
4 2019 SWVG Arnold Classic (Rapid Open) 2019/05/18 2019/05/19 Tshwane (GTP) Rapid 35 0.66 10 10 7.0 1570.1 1536.1 Analysis
3 Dirk de Koster Chess Open 2019 (A) 2019/04/13 2019/04/13 Sedibeng (GSV) Standard 61 0.83 5 5 3.5 1572.5 1579.3 Analysis
2 2019 Hervormde Kerk (Open) 2019/03/09 2019/03/09 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 5.0 1554.2 1557.9 Analysis
1 Wesvalia 2019 (A) 2019/02/16 2019/02/16 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.5 1536.1 1536.1 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
Standard 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
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 101 59 18 24 68.0 67.3 147.3 1544.0 1691.3
White 47 30 9 8 34.5 73.4 198.9 1519.0 1717.9
Black 54 29 9 16 33.5 62.0 102.3 1565.8 1668.1
Standard All 72 39 16 17 47.0 65.3 129.9 1579.6 1709.5
White 33 21 8 4 25.0 75.8 218.9 1533.6 1752.6
Black 39 18 8 13 22.0 56.4 54.5 1618.5 1673.0
Rapid All 10 6 2 2 7.0 70.0 170.0 1499.9 1669.9
White 5 2 1 2 2.5 50.0 0.0 1545.3 1545.3
Black 5 4 1 0 4.5 90.0 340.0 1454.5 1794.5
Blitz All 19 14 0 5 14.0 73.7 201.3 1432.2 1633.5
White 9 7 0 2 7.0 77.8 236.1 1450.6 1686.7
Black 10 7 0 3 7.0 70.0 170.0 1415.6 1585.6
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 104053107 Govender, Y (Yaduvir) 3 1.0 1 0 2 33.3 1579.0 -141.7 1437.3 View list
2 195061205 Lodi, K (Khotso) 2 2.0 2 0 0 100.0 1655.8 425.0 2080.8 View list
3 103007373 Dinham, J (James) 2 1.0 1 0 1 50.0 1641.3 0.0 1641.3 View list
4 106053297 Govender, S (Shevern) 2 1.0 1 0 1 50.0 1606.2 0.0 1606.2 View list
5 100080203 Nkuna, MJ (Moeletsi) 2 1.0 1 0 1 50.0 1660.5 0.0 1660.5 View list
6 101057918 Vundla, N (Mthandazo) 2 0.5 0 1 1 25.0 1654.7 -212.5 1442.2 View list
7 199021497 Masiya, MA (Mfundo) 2 0.0 0 0 2 0.0 1601.0 -425.0 1176.0 View list
8 101023373 Mlahleki, V (Vusimuzi) 2 0.0 0 0 2 0.0 1655.8 -425.0 1230.8 View list
9 1000100532 Gafane, H (Harry) 1 1.0 1 0 0 100.0 1601.0 425.0 2026.0 View list
10 102009689 Fouche, J (Janu) 1 1.0 1 0 0 100.0 1536.1 425.0 1961.1 View list
11 107086443 Felix, H (Harrison) 1 1.0 1 0 0 100.0 1570.1 425.0 1995.1 View list
12 202008750 Emanuel, P (Prithee) 1 1.0 1 0 0 100.0 1572.5 425.0 1997.5 View list
13 194007815 Du Plessis, H (Heinco) 1 1.0 1 0 0 100.0 1662.1 425.0 2087.1 View list
14 100071794 Dortley, D (Devon) 1 1.0 1 0 0 100.0 1744.0 425.0 2169.0 View list
15 1010151831 Dlamini, R (Reginald) 1 1.0 1 0 0 100.0 1744.0 425.0 2169.0 View list
16 101093344 Dhlamini, B (Brian) 1 1.0 1 0 0 100.0 1554.2 425.0 1979.2 View list
17 100003938 Burger, SW (Schalk) 1 1.0 1 0 0 100.0 1570.1 425.0 1995.1 View list
18 102053241 Buchner, E (Eduard) 1 1.0 1 0 0 100.0 1712.6 425.0 2137.6 View list
19 1990140302 Cele, M (Mpendulo) 1 1.0 1 0 0 100.0 1744.0 425.0 2169.0 View list
20 101001711 Bekker, GD (Gerhardus) 1 1.0 1 0 0 100.0 1554.2 425.0 1979.2 View list