I'm sure there is, but I am not aware of any on the top of my head.
This time around though, BSP was less of a factor, because Muslims consolidated around SP. Perhaps the first time in the history of UP that Muslims showed their political prowess by voting en masse. In only place where BSP played a spoiler was where they had a strong Muslim candidate who had his own following. but that was just around 2-3 seats.
Having said that, we should not look at this purely on numbers. Keep in mind that the BSP vote bank of Jatavs, will never vote for a Yadav or Muslim. If they had to vote for anyone else, it would be for the BJP. So for example in Deoband, if there was no BSP candidate, that vote would mostly be transferred to the BJP and not the SP or Congress.