I have a simple API which returns a list of rows from db like so

[HttpGet]
[Route("list/{count}")]
public async Task<ActionResult<IEnumerable<IResult>>> GetRows(int count)
{
    var list = await dbc.GetList(count);
    return new JsonResult( list.ToList<IResult>() );
}

the database returns a row with attributes id, name, status etc. whereas the interface has a subset like so

public class Result{

   int id {get;set;}
   string name {get;set:}
   int status {get;set;}
}

public interface IResult{

   int id {get;set;}
   string name {get;set:}
}

I have the .ToList() to return only the fields in the json result, is there a better/more efficient way than to convert to another List() first ?