Sam Walters very nearly gave Wigan the perfect start, but fumbled the ball in a tackle as he looked to crash over the line inside two minutes.
A handling error from Castleford, as they tried to run the ball out of their own half, meant the early let-off was only a short reprieve, with Bevan French setting Miski up for the game’s first try with a teasing grubber kick that squirmed from the grasp of Tigers full-back Tex Hoy.
Miski then turned provider, intercepting a pass before sending Super League’s leading try-scorer Field over for his 23rd of the season.
Two Marshall tries in five minutes, including a spectacular diving finish which left him with a bloodied scalp after skidding off the turf, had Wigan well on their way to a convincing victory.
Farrimond followed up with back-to-back tries of his own, the first he created for himself with a clever kick before later linking up with Field to run in Wigan’s sixth first-half try.
And with Farrimond converting both of his tries, the 19-year-old – who was brought in to replace England half-back Harry Smith – finished the half with a personal points tally of 18.
Miski then leapt over for his second try of the night eight minutes into the second half after Eckersley juggled a Farrimond kick and offloaded for the winger to finish.
A disastrous attempt of a goal-line drop out for Hoy, which comically went backwards as it sailed and landed back in goal on the left edge, gifted Wigan possession and chance to add to their lead, which Hill eventually did after a succession of repeat sets.
Mustapha managed to conjure a spectacular solo try in response, only for Eckersley, Field and Havard to dot down and take Wigan past the 60-point mark.