In the absence of any decibel counters, possibly the biggest cheer on a raucous night came not when either of the two world records were set but when host nation The Bahamas won the third and final heat of the men s 4x400m in 3:00.30.

Jamaica s men s 4x200m quartet improved the world record* by 0.05 with a run of 1:18.63 at the IAAF World Relays in Nassau, The Bahamas, on Saturday (25).

As far as comebacks go Mary Keitany couldn t have enjoyed a better return as she won the Lowertown Brewery Ottawa 10k, an IAAF Silver Label Road Race, in a course record of 31:22 on Saturday (25).

It was a blazing second bend by Jeneba Tarmoh which set up victory for the USA in the women's 4x100m final, and sharp baton work on all three exchanges didn't hurt, with the US team clocking 41.88.

The results of the women s 4x1500m and men s 4x200m both bear the capital letters ‘WR beside the name of the winners but beyond that, the two world records* put up in Saturday night's action at the inaugural IAAF World Relays have little in common.

Despite much of the course blanketed in an early morning fog, the 2014 Scotiabank Ottawa marathon, an IAAF Silver Label Road Race, saw Ethiopia s Yemane Tsegay and Tigist Tufa produce course records on Sunday (25).