ROTHERHAM United suffered derby heartache as they were denied victory in the dying seconds for the second Championship match in succession.
The Millers were leading 1-0 against Yorkshire rivals Hudersfield Town in the fifth of six minutes of added time when Town snatched the equaliser.
The scenes at rainswept AESSEAL New York Stadium had grim echoes of those at Birmingham City a week earlier when Paul Warne's men were pegged back in the 90th minute.
Rotherham looked set for three points after Ben Wiles' stunning first-half strike but Pipa's shot took a huge deflection off Angus MacDonald to finish in the back of the net.
They head into the international break in 11th spot after taking five points from their opening four games.
The Millers deserved their half-time lead and then came so close to holding out in the second half as the Terriers pressed hard to find a way back into the game.
Rotherham were indebted to Angus MacDonald in the opening two minutes as the centre-half produced a superb, goal-saving block to keep out Fraizer Campbell's shot.
The raining was teeming down at New York and both sides found the conditions tough in a scrappy first half.
The visitors had started the contest better but the Millers worked their way into the match and took the lead just after the half-hour mark.
Wiles lit up the gloomy autumn surroundings by picking his spot from long distance.
He let fly as he controlled Kieran Sadlier's short pass from a cleared corner and the youngster's, fizzing, low, 25-yard effort flew past Town goalkeeper Ben Hamer's right hand.
The Millers almost doubled their advantage six minutes later when George Hirst's raking pass sent Freddie Ladapo clear only for the striker's fierce drive to be tipped over by Hamer.
Midfielder Dan Barlaser, last year's loan star whose return yesterday on a permanent deal from Newcastle United was met by such delight from supporters, was on the bench.
A huge blow to Rotherham was the loss of in-form right winger Chiedozie Obene to an injury suffered in training on the eve of the game.
Wiles moved out wide to cover his absence, with Sadlier coming back in on the left flank.
In a 4-4-2 formation, new boy Hirst was given his second start up front, this time alongside the recalled Ladapo.
The second half was a hard-fought affair as the rain continued to fall heavily.
The Millers were grateful when former loanee Josh Koroma miscontrolled Carel Eiting's ball over the top in the 57th minute and then, soon after, steered a cross wide from another New York old boy, Harry Toffolo.
The home side were defensively solid and Town were thwarted by a series of blocks as they upped the pressure in search of an equaliser.
Jamal Blackman pulled of a crucial save in the 82nd minute, parrying Pipa's shot at his near post, and Rotherham thought they were home and dry when substitute Adama Diakhaby headed off target in time added on.
They reckoned without the Terriers' cruel leveller.
Goals: Wiles 33 (Rotherham), Pipa 90+5 (Huddersfield).
Rotherham (4-4-2): Jamal Blackman; Wes Harding, Michael Ihiekwe, Angus MacDonald, Joe Mattock; Ben Wiles, Shaun MacDonald ( Jamie Lindsay 75), Matt Crooks, Kieran Sadlier; Freddie Ladapo Kyle Vassell 70), George Hirst (Michael Smith 52). Subs not used: Viktor Johansson, Richard Wood, Dan Barlaser, Mickel Miller.
Huddersfield (4-1-2-3): Ben Hamer; Pipa, Richard Stearman, Naby Sarr, Harry Toffolo; Jonathan Hogg; Juninho Bacuna (Matty Daly 78), Carel Eiting; Isaac Mbenza (Adama Diakhaby 83), Fraizer Campbell, Josh Koroma. Subs not used: Joel Pereira, Demeaco Duhaney, Ramoney Crichlow, Jaden Brown, Mustapha Olagunju.
Referee: Andy Woolmer (Northamptonshire).