Don't you remember the winter of 63 ?
Might go for a replication of these results W4 D3 L1. Not sure if 15 points would be enough though
03 Apr 1963 Sheffield United v Manchester City W 3-1 League Division One
06 Apr 1963 West Bromwich Albion v Sheffield United W 1-2 League Division One
13 Apr 1963 Sheffield United v Arsenal D 3-3 League Division One
15 Apr 1963 Blackpool v Sheffield United L 3-1 League Division One
16 Apr 1963 Sheffield United v Blackpool D 0-0 League Division One
20 Apr 1963 Manchester United v Sheffield United D 1-1 League Division One
24 Apr 1963 Manchester City v Sheffield United W 1-3 League Division One
26 Apr 1963 Sheffield United v Leyton Orient W 2-0 League Division One
They still had 4 more games to play in May. This was after having played 8 games in March ! (3 cup ties including my first ever trip to the Lane Blades 3 Bolton 1)
Prior to that they played one game in January and one game in February
We played 9 games in March 84:
3/3 H Orient W6-3 (Edwards 3, Morris 2 pens, Heffernan)
6/3 H Oxford L1-2 (Morris)
10/3 A Exeter W2-1 (Edwards, Morris)
13/3 H Bradford (AMC) W2-1 (Charles, Garner)
17/3 H Hull D2-2 (Arnott, Edwards)
20/3 A Scunthorpe (AMC) W3-2 (Edwards 2, Arnott)
24/3 A Bournemouth W1-0 (Edwards)
27/3 A Scunthorpe D1-1 (Edwards pen)
31/3 H Walsall W2-0 (Arnott, Edwards)
and another 9 in April 98
1/4 A Forest L0-3
5/4 N Newcastle (FAC L0-1)
7/4 H Middlesbrough W1-0 (Saunders)
11/4 H Norwich D2-2 (Stuart, Borbokis)
13/4 A Swindon D1-1 (Marcelo)
18/4 H Bury W3-0 (Stuart pen, Saunders 2)
25/4 H WBA L2-4 (Stuart pen, Marcelo)
28/4 A Tranmere D3-3 (Quinn, Saunders, Devlin)
30/4 A Crewe L1-2 (Hamilton)