Larissa Iapichino's face said it all: hands on her head and mouth agape, it was the look of someone who could scarcely believe what she had just achieved. Even now, two-and-a-half months on from her jump at the Italian Indoor championships, the 18-year-old struggles to explain how she felt as she set a new junior indoor world record and equaled the Italian indoor record.

"I can't describe it. It was somehow like I had this blackout and then I realized everything, and it was like: Wow," Iapichino tells CNN Sport. The 18-year-old's leap of 6.91 meters in February also carried personal significance.