How do I use condition statements inside a gridView

Hi Expers,
I am developing a website for my rugby team. This website has a Schedule page, on this page I have a gridView that has columns for date, is home, opponent, score, game type

The "score" column is an TemplateField and inside the ItemTemplate I have 3 labes:

1) lblPointsInFavor (points for the team)
2) lblPointsAgainst(points against the team)
3) winLoss (no text, this is where I will like to show a W or L depending on the other two labels)

The problem is that I've tried everthing that I can think of, google, etc. . to find the value of those labels so that on the RowDataBound event I can make a comparison and then give the winLoss label the appropiate "W" or "L"

I keep getting this annoying error: Object reference not set to an instance of an object.

I will paste the code below.

Thanks so much!

aspx page (GridView code)
=============================
<asp:GridView ID="gvSchedule" runat="server" AutoGenerateColumns="False" AllowSorting="true" DataKeyNames="intGameTypeID"
                  Width="425px" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" 
                  BorderWidth="1px" CellPadding="4" ForeColor="Black" GridLines="Horizontal">
       <Columns>
        <asp:BoundField DataField="dtmGameStart" HtmlEncode="False" DataFormatString="{0:MMM dd, yyyy - hh:mm tt}" HeaderText="Date" />
        <asp:BoundField DataField="fIsHome" />
        <asp:HyperLinkField HeaderText="Opponent" DataNavigateUrlFields="strOpponentURL" DataNavigateUrlFormatString="{0}" Target="_blank" DataTextField="strOpponentName" />
        <asp:TemplateField HeaderText="Score"> 
            <ItemTemplate>
                <asp:Label ID="lblPointsInFavor" runat="server" Text='<%# Eval("intPointsFavor") %>' /> 
                - 
                <asp:Label ID="lblPointsAgainst" runat="server" Text='<%# Eval("intPointsAgainst") %>' />
                &nbsp;
                [<asp:Label ID="winLoss" runat="server" />]
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField Visible="true" DataField="strGameType" HeaderText="Game Type" />
       </Columns>
        <FooterStyle BackColor="#CCCC99" ForeColor="Black" />
        <SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
        <HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
    </asp:GridView>
 
 
=========================
aspx.vb code
==========================
If e.Row.RowType = DataControlRowType.DataRow Then
 
            'Dim lblPointsInFavor As Label = DirectCast(e.Row.FindControl("lblPointsInFavor"), Label)
            Dim lblPointsInFavor As Label = DirectCast(gvSchedule.FindControl("lblPointsInFavor"), Label)
            Dim lblPointsAgainst As Label = DirectCast(gvSchedule.FindControl("lblPointsAgainst"), Label)
            Dim winLoss As Label = DirectCast(gvSchedule.FindControl("winLoss"), Label)
 
            Dim intFor As Integer = Convert.ToInt16(lblPointsInFavor.Text)
            Dim intAgainst As Integer = Convert.ToInt16(lblPointsAgainst.Text)
 
            If intFor > intAgainst Then
                winLoss.Text = "W"
            Else
                winLoss.Text = "L"
            End If
 
 
        End If

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