The 213-run stand between Boyagoda (116, 124b, 17x4,1x6) and Lakshan (98, 119b, 12x4, 1x6) put Sri Lanka in a position of strength to overtake the Windies' total of 254-5 but a batting collapse made things difficult for the 2000 finalists and they ultimately won with only two balls to spare.
In the Super League, Bangladesh defeated England by five wickets in the play-off semifinal for fifth place to set up a match with South Africa on Wednesday in Queenstown.
The Windies scored a competitive 254 for five after being put in to bat.
Alick Athanaze continued his fine form with an unbeaten run-a-ball 110 (5x4, 2x6) which enabled him to finish the tournament with 418 runs, the second most by any Windies player at a single U-19 Cricket World Cup after Donovan Pagon (421 in 2002).
Brad Barnes (37 not out) and Bharat Yadram (31) were the other main contributors to the total for the 2016 Super League champion side.
But some quick wickets including a couple of run-out dismissals, saw the team lose seven wickets for only 31 runs before scraping through to 255 for seven in 49.4 overs.
Bangladesh were impressive in their five-wicket win over England with Afif Hossain's all-round effort of three for 18 and 71 not out proving the difference between the two sides.
With fast bowlers Hasan Mahmud (three for 29) and Qazi Onik (two for 46) also doing their bit, England were bowled out for 216 in 47.2 overs.
Bangladesh scored 220 for five in 47.3 overs with Afif (71, 84b, 7x4, 1x6) and captain Saif Hassan (59, 89b, 4x4) figuring in a 66-run partnership for the fourth wicket and then Afif adding 51 for the next with Mohammad Rakib (28 not out, 42b, 2x4).
Meanwhile, Afghanistan will try to further their success story in this tournament when they take on three-time champions Australia in the first semi-final of the Super League at the Hagley Oval tomorrow.
Afghanistan coach Andy Moles: "Australia are the favourites but probably not quite as big favourites as they were a few days ago. We have a very good team and we have come here to win, but we are not arrogant to say we will win.
"We will win if we do very, very well in the key moments. At under-19 level the biggest challenge is to get consistency. If we have a good day, we intend to upset their applecart."
The winners of this match will await the victors of the second semi-final between India and Pakistan to be played at the same venue on Tuesday.
The final will be played at the Bay Oval in Tauranga on February 3.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
