C # Transpose Columns in rows

In C # - Linq: I have a collection of List of objects:

    Field 1 |     Field 2 |     Field 3 |     Field 4 |     Field 5 |     Test |     15 |     20 |     45 |     52 |   

I need to transpose this row from a collection to a List of integers
  15   20   45   52

Could anyone help?

I need a well-optimized version for this, without the burden of needing to iterate something.

Thank you.

To be clearer I will post the method in which I run my threads, it is precisely the foreach of the tens that I need to avoid:

    public static void DoWork()
    {
        LFAcertos = new List<Lotofacil>();

        var probabilidades = EnumerableExtentions.Combinations(new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }, 15);
        int acertos = 0;
        int seqI = 0;
        Int16 idMax = LotofacilService.GetMaxConcurso();

        string info = string.Empty;

        if (idMax < LFConcursos.Count)
        {
            for (Int16 i = idMax; i <= LFConcursos.Count; i++)
            {
                if (!idConEmUso.Contains(i) && !LotofacilService.ExistLotofacil(i))
                {
                    info = string.Format("Lendo Concurso {0} em {1}", i, DateTime.Now);
                    Console.WriteLine(info);
                    log.Info(info);
                    idConEmUso.Add(i);

                    seqI = 0;
                    foreach (var seq in probabilidades)
                    {
                        seqI++;
                        acertos = 0;                            

                        foreach (int dezena in seq)
                        {
                            if (LFConcursos.Any(a => a.IdConcurso == i &&
                                  (a.Bola1 == dezena ||
                                   a.Bola2 == dezena ||
                                   a.Bola3 == dezena ||
                                   a.Bola4 == dezena ||
                                   a.Bola5 == dezena ||
                                   a.Bola6 == dezena ||
                                   a.Bola7 == dezena ||
                                   a.Bola8 == dezena ||
                                   a.Bola9 == dezena ||
                                   a.Bola10 == dezena ||
                                   a.Bola11 == dezena ||
                                   a.Bola12 == dezena ||
                                   a.Bola13 == dezena ||
                                   a.Bola14 == dezena ||
                                   a.Bola15 == dezena
                                )))
                            {
                                acertos++;
                            }
                        }

                        if (acertos >= 14)
                        {
                            //info = string.Format("{0} acertos encontrados para o concurso {1} em {2}",acertos, i,DateTime.Now);
                            //Console.WriteLine(info);
                            //log.Info(info);
                            LotofacilService.SalvaLotofacil(new Lotofacil
                            {
                                IdConcurso = i,
                                IdSeqProb = seqI,
                                Bola1 = seq.Take(1).Single(),
                                Bola2 = seq.Take(2).Skip(1).Single(),
                                Bola3 = seq.Take(3).Skip(2).Single(),
                                Bola4 = seq.Take(4).Skip(3).Single(),
                                Bola5 = seq.Take(5).Skip(4).Single(),
                                Bola6 = seq.Take(6).Skip(5).Single(),
                                Bola7 = seq.Take(7).Skip(6).Single(),
                                Bola8 = seq.Take(8).Skip(7).Single(),
                                Bola9 = seq.Take(9).Skip(8).Single(),
                                Bola10 = seq.Take(10).Skip(9).Single(),
                                Bola11 = seq.Take(11).Skip(10).Single(),
                                Bola12 = seq.Take(12).Skip(11).Single(),
                                Bola13 = seq.Take(13).Skip(12).Single(),
                                Bola14 = seq.Take(14).Skip(13).Single(),
                                Bola15 = seq.Take(15).Skip(14).Single(),
                                Acertos = acertos
                            });
                        }
                    }
                }
                Thread.Sleep(2000);
            }
        }
    }