Mariana Pajón will lead the Colombian charge in Bogotá ©Getty Images

Riders will have their final chance to gain qualification points for the rearranged Tokyo 2020 Olympics at rounds three and four of the BMX Supercross World Cup in Bogotá.

Back-to-back events are being held in the Colombian capital from tomorrow, with racing set to be demanding as the course is 2,630 metres above sea level. 

The Tokyo 2020 rankings will be finalised after the two rounds, with 24 riders set to qualify for both the men's and women's BMX races.

All eyes will be on back-to-back Olympic champion Mariana Pajón in the women's race, with the Colombian London 2012 and Rio 2016 gold medallist racing on home soil.

Her challengers will include American Felicia Stancil, France's Manon Valentino and Russia's Natalia Afremova.

Former world champion Joris Daudet of France will ride in the men's event ©Getty Images
Former world champion Joris Daudet of France will ride in the men's event ©Getty Images

In the men's event, France's former world champion Joris Daudet will be among the field alongside a large contingent of Colombians.

Others to watch include Australia's Izaac Kennedy, Anderson de Souza Filho of Brazil and Arthur Pilard of France. 

Round three of the World Cup is being held tomorrow, before round four on Sunday (May 30).

The first two legs were held in Verona in Italy earlier this month, but none of the race winners are in the field in Colombia.