County Championship D2, Derby, day four: Yorkshire 444 & 68-0 beat Derbyshire 128 & 383 by 10 wickets
Yorkshire 22 pts, Derbyshire 3
Yorkshire maintained their return to form by overcoming determined resistance from Dominic Cork's side.
Steve Kirby tests out Mohammad Kaif with a short ball
Following a 10-wicket win over Somerset in their previous game, they looked odds on for an even more emphatic victory after forcing Derbyshire to follow-on 316 in arrears.
But Indian star Mohammad Kaif helped save the home team from the an innings defeat with his highest score since arriving at the County Ground - his 87 taking more than four and a half hours.
Both Kaif and overnight partner Cork were dismissed by paceman Steve Kirby, with Ryan Sidebottom bowling Nathan Dumelow for 25.
But Graeme Welch and Kevin Dean (30) prolonged the game into the afternoon with a last-wicket stand of 68, which was finally ended when Sidebottom had Welch caught behind for 54, giving him match figures of 9-111.
Dean bowled a tidy new ball spell but could not prevent the Yorkshire openers knocking off the runs required in just 20.2 overs with Stephen Fleming unbeaten on 42 and Matthew Wood 21 not out.
Derbyshire: A I Gait, M J Di Venuto, C W G Bassano, M Kaif, L D Sutton (Wkt), D G Cork (Capt), D R Hewson, G Welch, T Lungley, N R C Dumelow, K J Dean.
Yorkshire: M J Wood (Capt), S P Fleming, C White, M J Lumb, Yuvraj Singh, R J Blakey, S M Guy (Wkt), A K D Gray, T T Bresnan, R J Sidebottom, S P Kirby.