The tennis player, from Richmond Hill, Ont., rose 14 spots to No. 29, the biggest jump of anyone in the top 50.
Milos Raonic of Thornhill, Ont., remained the top-ranked Canadian on the list, rising two spots to No. 22. Raonic was eliminated by Shapovalov in the third round in Madrid.
Switzerland’s Roger Federer returned to the No. 1 spot for the 309th week of his career as Spain’s Rafael Nadal fell one spot to No. 2.
Federer, 36, made his first appearance at No. 1 as a 22-year-old in 2004 and held the position for 237 consecutive weeks.
The top three in the women’s rankings remained unchanged. Romania’s Simona Halep was No. 1, followed by Denmark’s Caroline Wozniacki and Spain’s Garbine Muguruza.
Francoise Abanda of Montreal was the new top-ranked Canadian at No. 128 after Eugenie Bouchard of Westmount, Que., plummeted 51 positions to No. 169.