A week is a long time in politics and also in cricket it seems.

Laura Delany's last gasp heroics sealed a four-wicket win and with it a T20 series whitewash one week after suffering the same fate in the ODI's.

It seemed unlikely as after a brisk start chasing 124, Ireland required 15 off the last over and 14 from the final five deliveries.

Cometh the hour, cometh the woman though as Laura Delany hit three successive boundaries to clinch another famous win from the penultimate ball.

"I'm pretty delighted with how that last over went," said a beaming Delany afterwards.

"But I think I'm more delighted for the team. We played some really good cricket in this T20 series and to finish it off today with a win just shows everyone what we are capable of.

On her longevity and setting an example to the youngsters in the squad, the 31-year-old was quick to pay tribute to the younger team members.

"To be honest they inspire me. Their fearless, aggressive nature, is something that I strive to emulate with my own game but plenty of work to do there still.

"It's brilliant to back in around the girls. I was injured there for a bit but it's an amazing team to be part of and I'm so delighted to be back out on the pitch wearing the green jersey."

Amy Hunter (28) and Gaby Lewis (21) opening stand of 55 looked to have Ed Joyce's side on course for a routine win, but they stuttered to 70 for 4, and with the rate climbing looked as if they had left themselves too much to do.

Delany though (36*) had other ideas, while Rebecca Stokell also did well with 19.

Earlier, the hosts had imploded after being on course for 160, their 104 for 1 ending at 123 for 7 as six wickets tumbled for just 19 runs in the final six overs.

Player of the Series Orla Prendergast was once again the destroyer-in-chief as her four wickets took her series tally to ten, while The Hills' left-arm teenage spinner Aimee Maguire picked up two.

"It's an amazing  feeling,:" said Orla Prendergast as she collected her $1000 reward for her efforts.

"We showed how good a side we are in each of those three games and what a finish to that game today. Just the best way to finish it.

"I think in every game we have played over here different players have put their hands up with such good performances which is great for the squad so many good players throughout our batting line-up and so many bowlers that can come on and change the game. It's a great place to be."

Skipper Gaby Lewis was justifiably proud of her squad and the series win.

"Very happy especially after the ODI series," said Lewis. "To bounce back was absolutely brilliant. I think every game someone else put their hand up which was just what you want in a team."

The current skipper was quick to play tribute to her predecessor Laura Delany and her impact in the series.

"She's been absolutely brilliant. She's been one of the most competitive players in the team and someone you always want in your XI. She puts her hand up to bowl the last over and she was in at the end again today. No-one else I'd rather want to get us over the line today."

Orla Prendergast's impact with the ball was another crucial factor and Lewis was also fulsome in her praise for the Pembroke all-rounder.

"She's been absolutely brilliant this series. Someone you want to throw the ball to for those early wickets which is so important. 

Next up Ireland is another trip to Asia, with an ODI series in India next month and Lewis was quick to thank the hosts for the trip and the similar conditions they are likely to encounter.

"The BCB have been really brilliant and we have really enjoyed our trip. We don't often come on tour to these subcontinent conditions so any time we get out here we want to learn as much as possible, and in every game we have improved which is great to see.