public void SortCompetitorsByNumber()
{
var competitorsByNumber = Competitors.OrderBy(c => c.Number).ToList();
for (int i = 1; i <= competitorsByNumber.Count; i++)
{
competitorsByNumber[i - 1].StartPosition = i;
}
OrbitsRunGridType = RunGridType.Number;
Competitors = competitorsByNumber;
}