Dan Wood scored an unbeaten 107 off just 59 balls and still finished a loser for Shepley.
His dominant knock against unbeaten Drakes League leaders Delph & Dobcross took his side to 169-5 in the quarter-finals of the Total Indoor Cricket Solutions T20 Trophy.
But Delph reached the semi-finals with eight balls to spare on 171-5 at Marsh Lane thanks to 57 from IPL player Shree Goswami and 61 from experienced Graeme Simpson.
Shepley must have thought they were in with a chance as Wood took command, hitting six fours and eight sixes in a tremendous T20 knock.
Aussie Daniel Anderson contributed 13 and skipper Danny Glover 23 off 24 balls with a boundary and two sixes, with Goswami taking two for 25 in his maximum four overs for Delph.
Nathan Jones also bowled well to claim one for 19, while Shakir Muhammad and Andy Cadd were the other wicket-takers.
In-form Greg Buckley was an early casualty for Delph, but then Goswami (57 off 38 balls including six fours and a six) and Simpson – who hit his 61 off 39 deliveries with eight fours and two sixes – shared a stand of 108 in just short of 11 overs.
Simpson and Nathan Jones (16 off 16) continued the good work before skipper Andy Gleave added a brisk 18 off 12 balls and Muhammad finished it off with two boundaries in his three balls faced.
Glover, Anderson, Jake Lynn and Danny Wood all had a wicket apiece.
Skipper Michael Cranmer hit a crunching 83 not out and Ryan Robinson an undefeated 31 to take Hoylandswaine to a nine-wicket victory over Golcar at Haigh Lane.
Golcar totalled 129-9 thanks to 51 from Niall Lockley and 25 from skipper Steve Whitwam, with Cranmer taking three for 22.
None of the Golcar bowlers could make real inroads, however.
Kirkburton won by conceding fewer wickets in their quarter-final at Barkisland.
Burton totalled 129-6 with Yaasar Imtiaz on 25 and Jack Hendy 30 not out – Alex Scholefield picking up three for 16.
Darren Robinson hit 61 in reply for Barkisland, but they finished level on 129 all out and so exited the competition as Hendy collected four for 24 and Javaid Ahmad three for five.
Broad Oak host Scholes in the remaining quarter-final on Thursday night (6.30
Draw for the semi-finals: Kirkburton v Delph, Broad Oak or Scholes v Hoylandswaine.
In the TICS T20 Shield (for teams outside the Premiership), Thongsbridge will play Clayton West in the final.
Thongsbridge scored a six-wicket win over Cedar Court Conference side Denby Dale, Zimbabwean Brandon Mavuta taking four for four as the Dale were sent back for 88.
Ben Raven-Hill hit 35 not out in the winning reply.
Clayton West bowled out Rastrick for 94 and then went through on 96-5.