With eight runners each for the Senior men and women, there were high hopes for the likes of three-time European Champion Avery.
But with Uganda's Joshua Cheptegei and Kenya's Hellen Obiri comfortably taking the men's and Women's titles respetively, there was no place on the podium for any Brits.
Avery's 30th-place put her top of the Brits, with Mhairi Maclennan, Jenny Nesbitt, Jess Coulson and Emily Hosker all placing in the top 50.
Meanwhile, Patrick Dever's 37th-place was enough to round off a decent shift from the men's team, with Mahamed Mahamed also within the first 50 to cross the line.
Shifts from Adam Hicker, Oliver Fox and Ross Millington - who finished 51st, 58th and 65th respectively - ensured a dignified day for the British men as they finished ninth in the overall standings.
Earlier in the day, the U20 men and women performed similarly to the seniors as the teams finished eighth and seventh respectively.
Day 7, Round 4
Eliteserien, Norwegian Commentary