I am having trouble with the solution to the Waterglens Horse Farms application in the Visual Basic 2010 Reloaded book. The problem reads:

Each year Sabrina Cantrell, owner of waterglen horse farms enters four of her horses in five local horse races. She uses the table shown below to keep track of her horses in 5 local races. in the table , a 1 shows that the horse won a race, a 2 shows 2nd place, a 3 is 3rd place , and a 0 the horse didn't finish in the top 3.

More details in these 2 images: http://imgur.com/a/YTNEX

Here is what I have tried so far:

Dim racescores(,) As Integer = {{0, 1, 0, 3, 2}, 
    {1, 0, 2, 0, 0}, {0, 3, 0, 1, 0}, {3, 2, 1, 0, 0}}
Dim subscript As Integer = 0
Dim noplace As Integer = 0
If horse1RadioButton.Checked Then
  Do While subscript < racescores(3, 4)
    If racescores(0, subscript) = 0 Then
       noplace = noplace + 1
    End If
    subscript = subscript + 1
  Loop
  noPlaceDisplayLabel.Text = noplace
End If