Markram belts 49-ball ton in record-breaking World Cup win

Aiden Markram smashed a 49-ball hundred, the fastest ever at the men's 50-overs World Cup, as South Africa's rampaging top order helped them thrash Sri Lanka by 102 runs in their tournament opener on Saturday in Delhi.

There was brutal batting at the Arun Jaitley Stadium where three of South Africa's top four batters smashed rapid hundreds to help them rack up a tournament record total of 5-428.

Quinton de Kock struck 100 and Rassie van der Dussen hammered 108 but both were overshadowed by Markram's incendiary 106 off 54 balls.

Markram, adjudged player of the match, eclipsed Ireland batter Kevin O'Brien's 50-ball century against England in the 2011 World Cup.

Former champions Sri Lanka were all out for 326 in 44.5 overs after brief fightbacks from Kusal Mendis (76), Charith Asalanka (79) and Dasun Shanaka (68).

South Africa's mammoth score replaced Australia's 6-417 against Afghanistan in 2015 as the highest in the men's World Cup.

"Happy for us. I can't find fault with the batting," South Africa captain Temba Bavuma said.

"We were not quite clinical with the ball, but we will take that confidence into the next game."

A staggering 31 sixes were hit in the match, to go with 74 fours, on a belter of a track that produced 754 runs.

Shanaka elected to field after winning the toss and the 1996 champions did not have to wait long for a breakthrough.

Dilshan Madushanka trapped Bavuma lbw in the second over but Sri Lanka did not get a chance to celebrate another dismissal in the next 29 overs with De Kock and Van der Dussen combining in a rollicking 204-run stand.

De Kock pulled Matheesha Pathirana to reach an 83-ball century, celebrating the milestone by punching the air and letting out a scream.

He attempted another pull off the next ball, only to top-edge to mid-on and depart after a whirlwind knock that included three sixes.

Van der Dussen's nearly run-a-ball knock came to an end when he holed out trying to hit Dunith Wellalage out of the park.

Markram, who clobbered 14 fours and three sixes, then took over and boundaries started flowing.

When Sri Lanka returned to begin their chase, Mendis fought fire with fire and raced to a 25-ball fifty, threatening to snatch Markram's record.

Kagiso Rabada dismissed Mendis caught behind after the batter's 42-ball blitz that was studded with eight sixes and four fours.

"The execution was not there, we were missing the right length. On these kind of wickets that's very tough," Shanaka said of his team's batting.

"We had the momentum, especially the way that Mendis and Asalanka played, but their total was a little too much for us."