Beatrice Masilingi (18 yesterday) & Christine Mboma (17) just did a madness over 400 metres in Lusaka at the Zambian All Comers Meet.

I'm hearing 49.25 and 49.28. TBC.

Both inside the current Under-20 World Record of 49.42 held by Brit Greuer.#JustCallMeTheNewCostas

— Jeff FREEMAN (@JFreeHardYards) April 11, 2021