var minPos = 500;

            foreach (var rule in TireBrand.RulesToApply)
            {
                if (rule.Definition == null)
                {
                    continue;
                }

                var m = Regex.Match(
                        TireBrand.ValueBefore,
                        @rule.Definition,
                        RegexOptions.IgnoreCase);

                var matchfound = m.Success;

                if (matchfound)
                {
                    if (TireBrand.ValueBefore.ToUpper().IndexOf(m.Groups[0].Value.ToUpper()) < minPos)
                    {
                        result =
                            (rule.DefaultMatchValue != null ?
                            rule.DefaultMatchValue :
                            m.Groups[0].Value);

                        minPos = TireBrand.ValueBefore.ToUpper().IndexOf(m.Groups[0].Value.ToUpper());
                    }
                }
            }