1(especially in horse racing) alongside; on a level.
（尤指赛马） 持平；平行
the horse came upsides
那马赶了上来。
Example sentencesExamples
The 7-4 second favourite was fast up and, after leading at the bend, repelled the challenge of Sandyhill Boss, who had loomed upsides as a big danger at the third bend.
They go about their dull lives without ever hearing the words novice chaser or staying hurdler, or even once experiencing the adrenalin rush of seeing the horse they backed at 12-1 come to the last flight upsides the favourite.
Doyen took it up again three furlongs out, with Ace and Bago putting in their bids for glory, but Azamour made his ground up very quickly and was upsides the leaders a furlong and a half out on the outside.
1.1upsides witharchaic Even or equal with.
〈古〉平等地，不相上下地
he did want to be upsides with that insulting little jackanapes
Origin
Early 18th century: from upside in the sense 'upper part' + the adverbial suffix -s.