Dibaba, who clocked the fastest time ever run over 2,000m - indoors or out - after crossing in 5 min 23.75sec in Sabadell in Spain on Tuesday (February 7), will be making her only 1,500m appearance of the indoor season at the Torun Arena.

She is likely to face competition from Bahrain’s Kalkidan Gezahegne, the 2010 world indoor 1,500m champion, and Sweden’s Meraf Bahta, the 2014 European 5,000m champion, as both are set to make their first starts of the season.

Dibaba’s performance in Sabadell, on the eve of her 26th birthday, bettered both Romanian Gabriella Szabo’s 5:30.53 indoor best set in 1998 and Irishwoman Sonia O'Sullivan's outdoor world record of 5:26.88 set in 1994.

She now owns the fastest indoor times ever produced for the 1,500m, one mile, 2,000m, 3,000m, two miles and 5,000m and is also the outdoor world record holder in the 1,500m, raising expectations that her 3:55:17 indoor standard is within reach tomorrow.

Among the home athletes competing is Olympic 800m finalist Joanna Jozwik, who arrives fresh from back-to-back tour victories this month.

Jozwik won in Dusseldorf in 2:00.91, the season's fastest time, before following up with a 2:01.26 victory in another German city, Karlsruhe.

In Toru, she will go up against world champion Maryna Arzamasava with the Belarusian making her fourth tour appearance after fifth, fourth and third-place finishes in Boston, Dusseldorf and Karlsruhe respectively.

The men's 1,500m features a clash between the first four men in the tour standings, headed by world silver medallist Elijah Manangoi of Kenya.

The 24-year-old clocked a world lead of 3:37.62 to win in Dusseldorf and finished runner-up in Karlsruhe to compatriot Silas Kiplagat, who is currently second in the standings.

Vincent Kibet, a finalist at last year's World Indoor Championships, and Bethwell Birgen, the Dusseldorf runner-up, complete the Kenyan quartet vying for victory.

Out in the field, Germany’s Lisa Ryzih will be looking to take sole possession of the tour lead in the women's pole vault.

Her winning 4.67m clearance in Karlsruhe currently ranks her third on the world list, but Swiss record-holder Nicole Buchler is close behind at 4.61m, and appears likely to provide a strong challenge.

With season's bests of 4.55m and 4.51m respectively, the United States' Mary Saxer and Czech Republic’s Romana Malacova could play a part in the points chase as well.