ShittyCode.cs

using System;
using System.Collections.Generic;
using System.Linq;

class VladkosNotebook
{
    static void Main()
    {
        var dataRecovered = new Dictionary<string, Dictionary<string, List<string>>>();
        while (true)
        {
            string[] playerSheet = Console.ReadLine()
                .Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
            if (playerSheet[0] == "END") break;

            string sheetColor = playerSheet[0];
            string reccordType = playerSheet[1];
            string thirdParameter = playerSheet[2];

            if (!dataRecovered.ContainsKey(sheetColor))
            {
                dataRecovered.Add(sheetColor, new Dictionary<string, List<string>>());
            }

            if (!dataRecovered[sheetColor].ContainsKey(reccordType))
            {
                dataRecovered[sheetColor].Add(reccordType, new List<string>());
            }

            if (reccordType == "win" || reccordType == "loss")
            {
                dataRecovered[sheetColor][reccordType].Add(reccordType);
                if (!dataRecovered[sheetColor].ContainsKey("opponents"))
                {
                    dataRecovered[sheetColor].Add("opponents", new List<string>() { thirdParameter });
                }
                else
                {
                    dataRecovered[sheetColor]["opponents"].Add(thirdParameter);
                }
            }
            else if (reccordType == "age" || reccordType == "name")
            {
                dataRecovered[sheetColor][reccordType].Add(thirdParameter);
            }
        }

        var orderedData = dataRecovered
            .OrderBy(a => a.Key)
            .Where(prop => prop.Value.ContainsKey("age") && prop.Value.ContainsKey("name"));

        if (!orderedData.Any())
        {
            Console.WriteLine("No data recovered.");
            return;
        }

        foreach (var colorSheet in orderedData)
        {
            Console.WriteLine("Color: {0}", colorSheet.Key);
            Console.WriteLine("-age: {0}", colorSheet.Value["age"][0]);
            Console.WriteLine("-name: {0}", colorSheet.Value["name"][0]);
            if (colorSheet.Value.ContainsKey("opponents"))
            {
                Console.WriteLine("-opponents: {0}",
                    string.Join(", ", colorSheet.Value["opponents"]
                        .OrderBy(a => a[0])));
            }
            else
            {
                Console.WriteLine("-opponents: (empty)");
            }

            var rank = CalculateOpponentRank(colorSheet);

            Console.WriteLine("-rank: {0:F2}", rank);

        }
    }

    static double CalculateOpponentRank(KeyValuePair<string, Dictionary<string, List<string>>> colorSheet)
    {
        int wins = (colorSheet.Value.ContainsKey("win"))
            ? colorSheet.Value["win"].Count()
            : 0;
        int losses = (colorSheet.Value.ContainsKey("loss"))
            ? colorSheet.Value["loss"].Count()
            : 0;
        double rank = (wins + 1) / (double) (losses + 1);
        return rank;
    }
}