Meaning of upsides in English:

upsides

Pronunciation /ʌpˈsʌɪdz/

adverb

  • 1(especially in horse racing) alongside; on a level.

    ‘the horse came upsides’
    • ‘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.’
    • ‘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.’
    1. 1.1upsides witharchaic Even or equal with.
      • ‘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.