Da heck, you guys. I never got my PM that my match was up!

Good thing I had enough sense to check the board.
I was hoping people would be more familiar with Lumiya, as she's one of the big players beyond Episode VI.
Lumiya was once Shira Brie, a high-ranking cadet of the Imperial academy. Before she became Lumiya, she was hand-picked by Darth Vader himself to infiltrate the Rebel Alliance and ruin Luke Skywalker’s reputation. She succeeded, at the cost of her body.
Vader rescued her and transformed her into Lumiya. She was trained in the ways of the Sith by both Vader and Palpatine, eventually becoming a member of the Emperor’s Hand (basically, the Emperor’s secret service). Next to the Emperor and Vader, she was the strongest Sith warrior in the galaxy.
The armour protecting her body is made of durasteel material, which “caused especially serious injury when an organic being connected with a physical attack.” Good luck trying to land a hit.
A master of armed and unarmed combat, her signature weapon is the lightwhip, made of Mandalorian iron and powered by shards of Kaiburr crystal. Her whip is a multi-stranded device of equal parts studded leather, strands of metal, and coherent lightsaber energy. It will slice through anything. It has a radius of 5 meters (over 15 feet) and can be shortened for close-ranged combat.
Darth Vader himself trained her in the way of the Force. According to the Star Wars Wiki:
Indeed, she fought on equal and sometimes superior ground with Jedi Grand Master Luke Skywalker, widely considered the greatest living swordsman in the galaxy. Those unfamiliar with her whip were immediately confounded, while some premeditated strategy in preparation for a confrontation with Lumiya.
Because there’s no prep time in Fight Club, Mayday will not know how to deal with Lumiya’s lightwhip. The Dark Lady used it “with lethal efficiency.” Not even Luke was able to overcome her in their first fight. As a matter of fact, he had to put together that second shoto-saber for his rematch. Mayday does not have the benefit of knowing her battle tactics like he did.
Her Force powers include mind tricks, Force Telekinesis, Force Deflection (energy armour to protect her against blasters, should the situation call for it, especially at Starfleet), Battlemind (the “focused resolve augmentation”, which would give her a greater drive and concentration to defeat Mayday) and Force phantoms. From the wiki:
Lumiya’s most prominent talent, however, lay in the creation of illusions of all kind: visual enhancements of one’s appearance when viewed through reflective surfaces; concealment of her own appearance, and the reverse; dazzling alterations of reality; doppelgangers whose sustained damage was inflicted instead upon the perpetrator; phantasms born purely of the dark side…She nonetheless perfected the ability and was able to create and direct hundreds of them simultaneously, in different shapes and sizes, and at multiple targets—all across the galaxy.
How would Mayday be able to defend against any of this? Spider-sense? Peter Parker himself put it this way: the spider-sense is not a “get out of jail free card.” These ain’t Mysterio’s cheap tricks. Force powers of this magnitude should be capable of overloading Mayday’s spider-sense, especially if she’s capable of emanating “waves of pure hatred.”
Also, webbing away the lightwhip? Even if she somehow managed it (and if it was that easy, any Jedi would do it), Lumiya will just use Force Telekinesis to recover it.
~My Two Cents
EDIT: Examples of how Mayday has NO chance against the lightwhip:



The range of the lightwhip's extensions allowed Lumiya to attack her enemies from a vantage point of several meters; this made it extremely difficult for them to closely engage the Dark Lady and allowed her to maintain control of combat situations. The whip's tails could have splayed in a vertical attack pattern, which allowed Lumiya to strike high, midway, and low all at once. Conversely, fanning the whip's tresses out in a horizontal flourish gave it the appearance of a weaponized cloud; this maneuver prevented contenders from sidestepping to evade the impending assault. Attempting to defend oneself by twirling a lightsaber into a shielding arc was also useless, because the lightwhip's reach extended over and beyond the length of the blade. If her guard was somehow penetrated, Lumiya was able to use the whip like a short lightsaber to parry incoming attacks, and she had the ability to even handle it like a staff to block the blades of adversaries.
And for those of you who always seem to favour experience over everything else, Lumiya has trained in the ways of the Sith for decades. You are not about to tell me that a teenager is going to overcome the Mistress of the Sith, are you (especially when she consistently gives the Grand Master of the Jedi a hard time)?
