The stage is set for an electrifying weekend in Las Vegas as UFC Vegas 117 prepares to deliver a night of high-stakes featherweight action. Headlining the event, Arnold Allen and Melquizael Costa are set to collide in a pivotal 145-pound showdown that could reshape the division's title picture. The co-main event is equally compelling, featuring featherweight contenders DooHo Choi and Daniel Santos, both eager to stake their claim for a future championship opportunity.

All 26 fighters must first step onto the scale to make their bouts official, with the Nevada State Athletic Commission allowing a one-pound allowance for non-title fights. The weigh-ins will stream live starting at 12 p.m. ET (9 a.m. PT), followed by intense staredowns around 2 p.m. ET. This is where the mental game begins, as fighters lock eyes and set the tone for Saturday night's battles.

The main card, airing live on Paramount+ from the UFC's Meta Apex facility, also features a bantamweight clash between Malcolm Wellmaker and Juan Diaz, adding further depth to an already stacked lineup. Here's the full list of fighters hitting the scale today:

Main Card (145 lbs.)
- Arnold Allen vs. Melquizael Costa
- DooHo Choi vs. Daniel Santos
- Malcolm Wellmaker vs. Juan Diaz

Preliminary Card
- Modestas Bukauskas vs. Christian Edwards (205 lbs.)
- Timmy Cuamba vs. Bernardo Sopaj (135 lbs.)
- Nikolay Veretennikov vs. Khaos Williams (170 lbs.)
- Ivan Erslan vs. Tuco Tokkos (205 lbs.)
- Thomas Gantt vs. Artur Minev (155 lbs.)
- Ketlen Vieira vs. Jacqueline Cavalcanti (135 lbs.)
- Cody Brundage vs. Andre Petroski (185 lbs.)
- Alice Ardelean vs. Polyana Viana (115 lbs.)
- Daniel Barez vs. Luis Gurule (125 lbs.)
- Shauna Bannon vs. Nicolle Caliari (115 lbs.)

Stay tuned for real-time weigh-in results and be sure to gear up for fight night with the latest in performance apparel designed to match the intensity of the Octagon.