Sub supprimeJJ()
Dim i As Long
With Sheets("NOUVEAUX INSCRITS&PARTICIPANTS")
For i = .Cells.Find("*", , , , xlByRows, xlPrevious).Row To 2 Step -1
If IsNumeric(Application.Match(.Cells(i, 3), Sheets("Historiques").[c:c], 0)) Then .Rows(i).Delete
Next
End With
End Sub