Initial Part 2 Sakura VS Pein's Asura Path (The one who's a robot)
Restrictions/Conditions: No byakugou, no summoning Jutsu
Location: Great Naruto Bridge
Starting Distance: 20 M
Who wins?
Well Initial part 2 Sakura didn't have byakuguo or summoning jutsu so unless you use currentl Sakura here's no reason to say that. Yes she has been saving chakra for years but she didn't used it or summoning unless currently so naturally you wouldn't count it because we don't know if she was good at it at the time (beginning of Shippuden). Sakura has been a chunin for most of Shippuden while Naruto went from high chunin to high jounin(base). Using byakugou and summoning just gives her kage level strength (her base chakra-enhance strength is kage but is stronger with byak.) but her skills are low jounin at best.
All of Pain's paths are kage level and controlled by Nagato who posses the rinnegan, any version of Sakura will lose. What does Sakura know of Asura path? Nothing she didn't fight him, only Kakashi and Naruto shown to have knowledge on all paths. Sakura can't stay at long distance because Asura path is long range and close range fighter. Missiles, laser, sword tail, extra hands that could grab Sakura as Nagato grabbed Bee.