Table:
text: Sidecarcross World Championship
2013
2013
Date_ Place Race_winners GP_winner Source_
23 June Genk Valentin Giraud / Nicolas Musset Ben Adriaenssen / Ben van de Bogaart Result
23 June Genk Ben Adriaenssen / Ben van den Bogaart Ben Adriaenssen / Ben van de Bogaart Result
7 July Iffendic Etienne Bax / Kaspars Stupelis Etienne Bax / Kaspars Stupelis Result
21 July Strassbessenbach Etienne Bax / Kaspars Stupelis Ben Adriaenssen / Ben van den Bogaart Result
21 July Strassbessenbach Ben Adriaenssen / Ben van den Bogaart Ben Adriaenssen / Ben van den Bogaart Result
4 August Kiviõli Etienne Bax / Kaspars Stupelis Etienne Bax / Kaspars Stupelis Result
11 August Ķegums Etienne Bax / Kaspars Stupelis Etienne Bax / Kaspars Stupelis Result

Question: What are the race winners for June 23 at the 2013 World Sidecarcross Championship?