wp-dapper-12.cs

string sql = $@"SELECT [Id], [Title] FROM [Tracks] WHERE [Tracks].[Id] = 1;

                SELECT [Id], [FirstName], [LastName] FROM [Drivers] WHERE [Id] IN (SELECT [DriverId] FROM [TrackWinners] WHERE [TrackWinners].[TrackId] = 1)";

using (var reader = await connection.QueryMultipleAsync(sql))
{
    var track = reader.Read<Track>().FirstOrDefault();

    if (track != null)
    {
        track.Winners = reader.Read<Driver>().ToList();
    }
}