[6] In February 2018, he was added to the Netherlands squad for the 2018 Cricket World Cup Qualifier, after Stephan Myburgh was ruled out of the tournament due to an injury.

[18][19][20][21] His all-round exploits and heroics came in do-or-die contest against Scotland as both Dutch and Scottish teams were eyeing for the final spot to qualify for the World Cup in India and for his performance, he received the Player of the Match award.

[25] Bas de Leede came into bat at number 4 position, especially at a critical juncture as far as the Dutch were concerned keeping in mind about the target to chase.

[26] He smashed a quickfire 123 off just 92 deliveries which gave a glimmer of hope for the Dutch side in their run chase in a must win match.

[31] In his team's first World Cup game against Pakistan, he returned figures of 4/62 before making 67 runs with the bat, which included a 70-run partnership with Vikramjit Singh, in a lost cause.

[40] His expensive bowling figures were as a result of a late onslaught by Australian middle order batsman Glenn Maxwell who braced his way to score the fastest ever century in Cricket World Cup history which came off just 40 deliveries.

[41][42] Bas de Leede set the unwanted record during the 49th over of the Australia's innings when he conceded 28 runs bowling to Maxwell and de Leede eventually surpassed the worst bowling figures in ODI cricket previously held by Adam Zampa and Mick Lewis.