Getting specified text from text file

[AceInfinity]

Try this:

listBox1.Items.Clear();
 
using (StreamReader sr = new StreamReader(textBox1.Text + @"\Game\Game.LOG"))
{
    while (sr.Peek() > -1)
    {
        string ln = sr.ReadLine();
        if (ln.Contains(" joined the match."))
        {
            string values = (from Match m in Regex.Matches(ln, @"""(.*?)""", RegexOptions.IgnoreCase)
                             select m.Value).ToArray()[0];
 
            //string status = ln.Contains("disco") ? "" : "";
            textBox1.Text += values.Replace((char)34, '\n')  + Environment.NewLine;
        }
    }
}
 
string[] arr = textBox1.Lines;
textBox1.Text = String.Join(Environment.NewLine, arr.Distinct().ToArray());

This will remove all the duplicates. Assuming that your display "2/16" is correct. I'm not sure how your validating that.