McKenzie also works on a variety of sports on the BBC and Channel 4 including tennis, rugby and equestrian, as well as the Olympics and Paralympic Games.

[citation needed] McKenzie has covered most major sports events from the Rugby World Cup to Wimbledon and the Derby, from Netball, Grand Prix and Football.

McKenzie presented for the Sony PlayStation, the F1 Regent Street display in front of 300,000 people and was asked by Nigel Mansell and Carl Fogarty to host the launch of their magazine for whom she was the on-track editor and columnist.

Since the BBC lost the F1 rights to Channel 4 she has continued to work for the corporation presenting and reporting on the Commonwealth Games, the Olympics, the Winter Olympics, Wimbledon, The Olympia Horse Show, Equestrian, the 6 Nations, the Women's 6 Nations Championships and the Rugby Union Autumn Internationals.

Since 2021, in a departure from normal practice (other than at the Singles Finals), McKenzie regularly conducts immediate post-match interviews with winning players in front of the crowd on Centre Court at Wimbledon - rather than off-court under the Royal Box.

It has endeared her to players and fans alike, including Nick Kyrgios as she explained during a wide-ranging appearance on the Fuelling Around Podcast.

I just think he respected the fact that I had given him space and we just did this lovely interview.” She joined co-hosts Jason Plato and David Vitty in an interesting debate about the future of motorsport and whether Formula E would ever be as popular as F1.

"[8] On 8 March 2016, it was announced that McKenzie would be joining Channel 4's F1 coverage following BBC's decision to no longer broadcast live F1 on TV.

It was announced she would be the presenter for the channel's highlights of the FIA World Endurance Championship after they gained the rights with immediate effect in June 2016.

[10] McKenzie missed the Austrian, British and Hungarian GP in 2017 as she was part of Channel's 4 UEFA Women's Euro 2017 and 2017 World Para Athletics Championships presenting teams.