Emma McKeon is top of the women's overall standings with one leg remaining ©Getty Images

Russian city Kazan is set to stage the fourth and final leg of the International Swimming Federation World Cup season with Australia’s Emma McKeon and South Africa’s Matthew Sates aiming to clinch the respective women’s and men’s overall titles.

McKeon and Sates topped the World Cup standings going into the season finale held at the Aquatics Palace.

Sates triumphed in the 200 metre medley and 400m freestyle in Qatar last time out to put him in pole position in the men’s rankings.

The 18-year-old leads the way on 171.4 points but faces pressure from two-time Olympic silver medallist Arno Kamminga of the Netherlands.

Kamminga is second on 169.7, while Tom Shields of the United States and Australian Olympic champion Kyle Chalmers are also in the title race having registered 169 and 165.4 respectively.

McKeon managed to consolidate her position at the top of the women’s leaderboard after winning the 100m butterfly and 100m freestyle in Qatar last week.

The 11-time Olympic medallist tops the table with 170, narrowly ahead of Kira Toussaint of The Netherlands who sits second on 169.2.

Australia’s Madison Wilson will also be looking to be among the medals as she occupies third spot with 156.3.

There are less than three points separating Maria Ugolkova of Switzerland in fourth and Holly Barratt of Australia in seventh as they bid to challenge for a top-three spot in the overall standings.

Competition is due to start tomorrow with finals in the women’s 50m freestyle, women’s 400m freestyle, women’s 50m backstroke, women’s 200m breaststroke, women’s 200m butterfly, women’s 100m medley, men’s 50m freestyle, men’s 400m freestyle, men’s 200m backstroke, men’s 100m breaststroke, men’s 100m butterfly and men’s 100m medley.