Kingstonian's excellent away record, unbeaten since October 3, was ended at Harrow Borough last night.
Ironically it was winger Lewis Cook, on-loan from Ks, who set up the opener for free-scroring Harrow striker Rocky Baptiste.
Until then, a scrappy affair had looked destined to finish goalless.
Two minutes from time, Harrow keeper Andray Baptiste was sent off for handling outside his box.
But, instead of Ks saving their unbeaten record, a pacy counter-attack saw sub Dewayne Clarke make it number two way into additional time.
Further headaches for Ks manager Alan Dowson were injuries to central defender Adam Thompson (pulled hamstring) and midfielder Simon Huckle (swollen ankle).
KS started well and were unlucky not to grab an early goal.
After four minutes, Matt Gray's corner from the right was only half-cleared to Mo Harkin outside the Boro box and he unleashed a fierce drive that struck a post on its way out with Andray Baptiste a stationary spectator.
Then a Gray cross found Simon Huckle on the away penalty spot but his first-time flick was caught by Andray Baptiste at full-stretch.
Back came the home side and winger Dean Fenton found Cook on the edge of the Ks box, but his two efforts were both blocked by Adam Thompson.
A high Cook cross from the left was confidentally caught by Rob Tolfrey under pressure.
On 25 minutes, a Christian Jolley 25-yarder was straight at Andray Baptiste.
Ten minutes later, Huckle's through ball saw striker Bobby Traynor take off, but Andray Baptiste was quickly out to smother on the edge of his box.
A Gray throw from the right was flicked on by Huckle to Traynor in the Boro goalmouth.
He turned, but was blocked by Boro skipper Wayne Walters amid some strong appeals for a penalty.
With four minutes to the break, Gray's corner from the left saw Huckle head straight at Andray Baptiste.
Then Jolley found striker Carl Wilson-Denis way out on the right, he cut in but blasted over.
A rare stray back pass from Ks skipper Francis Duku set up Rocky Baptiste in the Ks box, but his drive was smothered by Tolfrey.
Cook took off down the left but his near post cross was cut out by Tolfrey.
Three minutes after the break, a far post cross from the left flank from Harkin was well held by Andray Baptiste with Wilson-Denis in attendance.
A Harkin free-kick from the halfway line sent Gray free down the right but his cross went behind.
Harrow midfielder James Fraser on the edge of the Ks box sliced his drive high and wide. Then, Fenton's cross from the right fell to Cook whose low drive was on-target but straight at Tolfrey.
After 65 minutes, Ks went close again when Jolley picked up a Gray cross way out on the left.
He picked out Wilson-Denis close in but he belted the ball over holding his head in frustration.
Ten minutes later, the hosts went very close.
Clarke poked a ball forward for the pacy Baptiste who tore off down the right and unleashed a powerful drive that went just wide of the far post.
With ten minutes to go, Harrow grabbed the vital goal.
Cook took off down the right at some pace and delivered an inch-perfect cross into the Ks goalmouth for ROCKY BAPTISTE to force the ball home off a full-stretch Tolfrey.
Then Clarke took off on a run down the left and fired into the side-netting.
With four minutes to go the Harrow almost did it again when a cross from the left from sub Kenta Nakashima found Cook on the near post, but Tolfrey somehow blocked instinctively with his legs.
A minute later sub Dean Lodge broke the Boro backline releasing Traynor, he attempted to lob Andray Baptiste, who was way out of his box, and he used his hands to block the ball.
Referee Nigel Field immediately stopped play and sent off the Harrow keeper.
Unfortunately Gray's free-kick ended up in the Boro defensive wall.
Four minutes into additional time, with Ks desperately pushing upfront, Kwasi Frempong set DEWAYNE CLARKE free down the middle of the park, he couldn't be caught, he coolly sidestepped Tolfrey and fired home.
K's. 1. Rob Tolfrey 2. Matt Gray 3. John Fletcher 4. Adam Thompson (sub Max Hustwick, 45mins) 5. Francis Duku (capt) 6. Simon Huckle (sub Lee Hall, 54mins) 7. Luke Hickie 8. Mo Harkin 9. Bobby Traynor 10. Carl Wilson-Denis 11. Christian Jolley (sub Dean Lodge, 66mins).
Subs: 12. Rob Sheridan (not used) 14. Bashiru Alimi (not used) 15. Lee Hall 16. Dean Lodge 17. Max Hustwick.
Attendance: 154
Ks host Billericay Town this Saturday (1pm).
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