Runners will need to provide proof of at least one vaccination or a negative COVID-19 test from within 48 hours of race day to compete.

Efforts have also been made to reduce crowding throughout the event.

The three-day Expo prior to the race has been closed to the general public and the number of attendees at any one time has been restricted.

The start of the race will be staggered across multiple waves in an attempt to maintain social distancing.

On the course, runners will be permitted to wear hydration belts in order to reduce crowding at drinks stations dotted along the track.

Family members will also be banned from the finish area to reduce the risk of overcrowding.

Face coverings are set be required at the Expo, on public transportation during race day, at the race start, and at the post-finish area.

Kenya's Peres Jepchirchir is set to compete in the elite women's race after winning the women's marathon gold medal at the Tokyo 2020 Olympics.

The event is the last of the six World Marathon Majors, preceded by Tokyo, Boston, London, Berlin and Chicago.

The Tokyo race has been rescheduled to March 6 2022.

The Berlin Marathon is set to take place tomorrow in what will be its first edition since the start of the coronavirus pandemic, while the other four all take place over the space of seven weeks.

Kenenisa Bekele of Ethiopia is due to be competing in Germany as the three-time Olympic gold medallist - all over shorter distances than the marathon - looks to retain his Berlin title.

In the 2019 edition, Bekele finished two seconds shy of the world record set by Kenya's Eliud Kipchoge, and has vowed to attack the mark at tomorrow's race.