[8] In May 2009, Massey-Ellis was appointed fourth official for the year's FA Women's Cup final at Derby County's Pride Park Stadium, a game which saw two injury-time goals and Arsenal defeat Sunderland 2–1.

[10] On 11 February 2010, Massey-Ellis refereed the season's FA Women's Premier League Cup final between Leeds Carnegie and Everton at Rochdale's Spotland Stadium.

Massey-Ellis was withdrawn by the PGMOL from her next appointment, a League 2 game between Crewe Alexandra and Bradford City on 25 January, as they believed the added attention Massey might receive could detract from the match itself.

[citation needed] Massey-Ellis was the subject of censorship by Iranian state TV broadcasters when she was an assistant referee for a 12 April 2021 Premier League game between Manchester United and Tottenham.

The channel allegedly had previously cancelled showing a 2019 match between Augsburg and Bayern Munich because a female referee would be officiating, and edited a broadcast of the 2018 FIFA World Cup draw announcement due to co-host Maria Komandnaya.

[22] Massey-Ellis's early international career has included involvement in the 2007 FIFA Women's World Cup by taking up the role of fourth official for England's 4–0 qualification stage win over Austria on 20 April 2006.

[30] On 24 October 2019, Massey-Ellis was appointed to her first Men's International fixture in a 0–0 draw between PSV Eindhoven and LASK in the UEFA Europa League.