Barnsley went down to 10 men early in the second half, doubled their goal tally for the season and turned over Doncaster Rovers for the first time in nearly 30 years.
Man mountain and centre one-and-a-half Moore had no defence against the red card. Fouls don't come much more professional; it was all he could do to take down speedy Guy, he sure wasn't going to catch him.
But astoundingly from then on it was Doncaster who lost the plot.
They had been the better team marginally in the first half. Gone in front with an iffy 10th-minute penalty driven home by Brian Stock.
Barnsley with 11 couldn't get out of their own half just after the interval.
They were less with Moore.
Rovers manager Sean O'Driscoll recognised the root of his sixth defeat in a succession.
"I suppose had Darren just let Guy through to score the second goal (to make it 2-0), it could have been different," he said,
"I suppose the proverbial wheels came off and everything we did before Darren got sent off we stopped doing."
Fair point, except Barnsley deserve a deal more credit.
Word was before the game that manager Simon Davey's job may have been on the line.
Sheer bottle might just have kept him in work.
"The gaffer needs a big pat on the back," his No 2, Ryan Kidd reckoned.
"Automatically, with Mooro off, you think we need to go with four at the back, but he said we'll stick to a back three and keep the four in midfield and two up front.
"Even at 1-1 we didn't go with a back four.
Only after the second goal did we put Bobby Hassell on. The gaffer could have tried to settle for a draw but he said 'no, let's try and win this'."
Hassell's appearance at right-back gave Davey his best possible defensive four, alongside centre backs Stephen Foster and Denis Souza and left-back Rob Kozluk.
Souza and Kozluk were outstanding but one, the other or both will hold their hand up for Doncaster's penalty.
Ref Steve Tanner blamed the Brazilian for man-handling Guy after James Coppinger hoisted a left-to-right cross to the far post.
"I spoke to the ref and he said Denis Souza pushed him in the back," Kidd confirmed.
"It's gone against us and it knocks us out of our stride a little bit and I thought to myself 'we're in for a rough afternoon here'. But what a response in the second half."
Barnsley's equaliser was scruffy, scrappy and priceless.
Kozluk's deep-delivered freekick met Souza's head, Foster was there for the second header, a hopeful glancer which somehow escaped keeper Neil Sullivan.
"It's a sloppy goal from Stephen Foster's header and you think, 'how has that gone in?' but it has and you might say that's changed our season. But then we've gone on and got three more goals," Barnsley man of the match Jamal Campbell-Ryce, said.
Goals No 2 and 4 for Barnsley were top of the range.
Campbell-Ryce scored the second and assisted the assist on the third.
"Heinz (Muller) just chucked it out to me and I just tried to get a bit of yardage and free into space," he said.
"I just ended up getting to the end of the pitch and I though, 'why not have a pop?' and it's gone in.
Rovers just couldn't handle Campbell-Ryce nor Martin Devaney and Anderson de Silva in the last half-hour.
Campbell-Ryce teed up a shot for Devaney, Sullivan made a decent save, couldn't hold on and Jon Macken, on as sub for Maceo Rigters, slotted home from close with his first touch in the match.
Iain Hume bagged the fourth, his third for Barnsley, with a super strike deliberately placed beyond Sullivan.
Kidd couldn't see a weak link in the side.
"I thought the back lads kept it nice and strong. Heinz Muller was super again in the net," he said.
"Anderson de Silva controlled the middle of the park alongside Martin Devaney and Jamal Campbell-Ryce. It was individual brilliance.
"I mean, what a magic goal from Jamal."
Barnsley had given Rigters his first league start. The jury's still out on him.
Fifteen-year-old Reuben Noble-Lazarus came on for the last two minutes and didn't have time to do anything much right or wrong.
Rovers had fit-again Gareth Taylor in the team as well as Coppinger who had recovered from the sickness that kept him out of the midweek defeat
by Sheffield United.
CLICK ON GREEN PLAY BUTTON ABOVE TO SEE MATCH PICTURESWhat do you think? Post your comments below. READ MORE Blades Watch 08-09 - The Season So FarOwls Watch 08-09 - The Season So FarWatch Premiership highlights, international football, golf, tennis, darts and much moreFootball headlinesMore BladesMore OwlsMore SpireitesMore RoversMore RedsMore MillersMore Ice HockeyMore rugby leagueMore rugby unionMore boxingSports columnistsAll sport categoriesThe full article contains 879 words and appears in Sheffield Star newspaper.
