The West Indies, who took the series 2-1, was staring possible defeat in the face at 105-7 after 17 overs, needing 27 from the last 18 balls but with only Kevin Sinclair and Obed McCoy to come. With Jason Holder at the other end and the West Indies needing 20 from the last two overs, Allen hit the first ball of the 19th over bowled by Akila Dananjaya for six and then ran two leg byes off the second.
He then smashed the third ball for six and then took a single off the fourth. Holder took a single from the fifth, leaving Allen to face the last ball of the over with four runs needed for victory. Allen duly obliged with his third six of the over to end unbeaten on 21 off just six balls.
Holder was not out on 14.
Chasing 132 for victory, the West Indies were put in a spin by Hasaranga de Silva 2-13 and Lakshan Sandakan 3-29, who threatened to take the match away from the home side. The former removed Evin Lewis for 21 and Lendl Simmons for 26, both batsmen playing injudicious shots to the bowler, who prior to the start, had planned to see off.
Sandakan and Dushmantha Chameera (2-23) then combined to rip the heart out of the West Indies middle order. Sandakan bowled Chris Gayle for 13 early in the piece and then returned to bowl Rovman Powell for seven and then getting Dwayne Bravo caught at short fine leg for a golden duck from consecutive deliveries as the match headed towards a thrilling climax.
Chameera had Kieron Pollard caught behind for a duck and then bowled Nicholas Pooran for 23 to leave the West Indies in a spot of bother at 95 for 5.
Dananjaya ended with regrettable figures of 0-53 from his four overs.
Earlier, an unbeaten fifth-wicket partnership of 85 from 63 balls between Dinesh Chandimal and Ashen Bandara helped take Sri Lanka from 46 for 4, after the West Indies bowlers had combined to restrict the visitors to 46 for 4 mid-way the 10th over.
The pair took 13 off Dwayne Bravo’s final over to push the score to produce the highest fifth-wicket partnership for Sri Lanka to reach 131 for 4.
Chandimal’s unbeaten score of 54 came off 46 balls. He only hit three fours as he and his fellow batsmen were made to work hard by the West Indies bowlers, who produced a disciplined display.
Bandara’s 44 not out came from 35 balls hitting three fours and two sixes.
So restrictive was the home side’s attack they limited Sri Lanka to only eight fours and two sixes over the course of the 20-over allotment.
Fabian Allen, who returned figures of 1-13 from his four overs, took the first Sri Lankan wicket when he took a brilliant return catch to dismiss Danushka Gunathilaka for nine with only 10 runs on the board.
Nirsoshan Dickwella provided Kevin Sinclair (1-19) with his second wicket of the series caught by Jason Holder at wide mid-on for four as Sri Lanka crept to 15 for 2 in the fourth over.
Sinclair returned the favour when he took Pathum Nissanka at mid-off of Holder’s (1-27) short-of-a-length delivery for five to leave Sri Lanka struggling at 27 for 3.
Chandimal and Captain Angelo Matthews began to repair the damage with a stand of 19 when Matthews was caught behind off an Obed McCoy (1-29) delivery for 11. However, his dismissal opened the door to the record stand that took Sri Lanka’s to a competitive total at the Coolidge Cricket Ground.
The West Indies will now turn their attention to the ODI Series set to begin at the Sir Vivian Richards Stadium at North Sound on March 10, 2021.
Allen took figures of 1-13 as the West Indies restricted Sri Lanka to 131 for 4 despite an unbroken fifth-wicket stand of 85 between Dinesh Chandimal, who made 54 and Ashan Bandara who was unbeaten on 44.
Allen, who was also outstanding in the field, taking a blinder off his own bowling and saved several runs fielding in the outfield, then, with the West Indies needing 20 runs from the last two overs, smashed three sixes in the penultimate over of the match to propel the West Indies to victory.
"I prepare for everything, including bowling in the Powerplay. I just backed myself and executed,” Allen said afterwards. The pitch is very slow, so I just needed to execute my plans.”
He said he backed his team to win despite their struggles against the Sri Lankan spinners, who once again, troubled the West Indies batsman getting five of the seven West Indies wickets to fall.
However, admitting his own struggles, he revealed the plan concocted between Jason Holder and himself that helped the West Indies over the line. Like the other batsmen before him, Allen had trouble reading Hasaranga de Silva’s spin, especially the googly that he uses quite liberally.
Recognizing that weakness, he hatched a plot with the West Indies Test captain.
“I told Jason Holder that I'm not comfortable batting against Hasaranga, so I told him to bat him out and I'll be finishing. I just backed myself in the end. It was a good performance overall."
Not only did Holder bat out the over, but he also took advantage of a rare no-ball from the Sri Lanka spinner, smashing his ‘free-hit’ delivery for six which reduced the West Indies’ task of 27 from 18 balls, to 20 from 12.
In the next over bowled by Akila Dananjaya, Allen took care of the rest.
Chasing a modest total of 132, the West Indies, who took a 1-0 lead in the three-match series, started strong as Evin Lewis hit three sixes off the first over bowled by Angelo Matthews that yielded 19 runs.
However, in the fourth over with the home side sailing merrily along at 52 without loss, the match evolved into an even more entertaining spectacle.
Lendl Simmons had hit a six and a four off from the first two balls of the third over bowled by Dushmantha Chameera that yielded 14 runs. At the end of the over West Indies were 48-0 but it was the start of the most bizarre period of play in the match.
It all began with Lewis hitting Akila Dananjaya’s first ball of the fourth over for four as the West Indies raced to 52-0.
Lewis was caught in the deep for 28 off Dananjaya’s second ball, Gayle was trapped lbw first ball before Nicholas Pooran’s wicket completed the hat-trick caught behind off a thin edge. In three balls the West Indies had slipped from 52-0 to 52-3.
Lendl Simmons hit a six and a four before Hasangara de Silva trapped him lbw for 26. The West Indies were then 62 for 4.
There was another dramatic twist in over number six, Dananjaya’s third.
With Captain Kieron Pollard and Jason Holder at the crease and the West Indies still needing 70 runs, Pollard went on the offensive hitting the spinner for six consecutive sixes rushing to 38 from 10 balls.
The match would swing again in the seventh when Hasangara trapped Pollard lbw for 38 and then Fabian Allen for a duck with consecutive balls as both players failed to read the spinner.
Dwayne Bravo, who was unbeaten on four at the end, survived the hat-trick ball and together with Holder, who was 29 not out, produced an unbroken stand of 31 after Holder drove Pradeep for six over long-on to seal the victory.
Hasangara ended with 3-12. Dananjaya’s figures that read 3-17 after two overs ended with 3-62.
Pollard had won the toss and put Sri Lanka into bat. The visitors lost their first wicket at 20 when Pollard diving to his right pulled off a spectacular catch at short midwicket to dismiss Danushka Gunathilaka for four and hand debutant Kevin Sinclair his first international wicket.
Niroshan Dickwella (33) and Pathum Nissanka (39) put on 51 for the second wicket but there were no other noteworthy partnerships for the Sri Lankans who crawled to 132 for 9 from their allotment of 20 overs.
Obed McCoy was the best of the West Indies bowlers with 2-25 and there was a wicket each for Jason Holder, Allen, Sinclair, Dwayne Bravo and Fidel Edwards, who bowled tight lines and lengths, hardly giving anything away to the Sri Lankan batsmen.