question

Maybe this clientside haxx could be of use for someone else struggling with this? The type LeaderboardEntry in this code is just a container with the same stuff you get in the PlayFab leaderboard entries.

The approach here is to download each array of entries. Then through them and sort them by "Value" and one more thingy of your choice that you know will differ (in my case "UserId", but you can take UserName or whatever).

Finally, since you might have been fiddling around with the positions, we iterate through them and make sure the positions are in order.

Upside: It will show the same, regardless of the Playfab function you have called.

Downside 1: It ain't pretty nor fast.

Downside 2: What the player see might differ from the order the Playfab web gui shows.

C#:

public class LeaderboardEntry
{
    public int Position;
    public string Username;
    public string UserId;
    public int Value;
}    

private void OnEntriesDownloaded(List<LeaderboardEntry> entriesTop10, List<LeaderboardEntry> entriesAroundPlayer)
    {
        if(entriesTop10 == null)
            return;

        if(entriesAroundPlayer == null)
            return;

        m_entriesTop10 = SortTies(entriesTop10);
        m_entriesAroundPlayer = SortTies(entriesAroundPlayer);

        RefreshSlots();
    }

    private List<LeaderboardEntry> SortTies(List<LeaderboardEntry> list)
    {
        if (list.Count < 1)
            return list;

        int bestPositionInList = list[0].Position;

        var sortedList = list.OrderByDescending(c => c.Value).ThenBy(n => n.UserId).ToList();

        for(int i = 0; i < sortedList.Count; i++)
        {
            sortedList[i].Position = bestPositionInList + i;
        }

        return sortedList;
    }