Delete the oldest repeat

You could do that or you could use this modified version:

Option Explicit
Public Sub FixBaseData()

Dim lastRow As Long
Dim thisRow As Long
Dim lookupTable As Object
Dim lookupKey As Variant
Dim ws As Worksheet

' Get a reference to the worksheet
Set ws = Worksheets("Base Data")

' Create the lookup table
Set lookupTable = CreateObject("Scripting.Dictionary")

' Find the last row of data
lastRow = ws.Cells(ws.Rows.Count, "A").End(xlUp).Row

' Temporarily turn off the screen updating
Application.ScreenUpdating = False

' Process from the latest record (at the bottom) to the oldest (at the top)
For thisRow = lastRow To 2 Step -1
    ' If the result isn't "Passed" then delete the row
    If ws.Cells(thisRow, "I").Value <> "Passed" Then
        ws.Cells(thisRow, "A").EntireRow.Delete xlShiftUp
    Else
        ' Create a key for the lookup table based on the first and second names
        lookupKey = ws.Cells(thisRow, "E").Value & " " & ws.Cells(thisRow, "F").Value
        
        ' Have we seen this name already?
        If lookupTable.Exists(lookupKey) Then
            ' Yes - delete the row
            ws.Cells(thisRow, "A").EntireRow.Delete xlShiftUp
        Else
            ' No - add the name to the lookup table
            lookupTable.Add lookupKey, lookupKey
        End If
    End If
Next thisRow

' Restore screen updating
Application.ScreenUpdating = True

End Sub

WBD