Xiong arrives with a huge name from her ONE Championship title reign, but her lone UFC data point was sobering: she was out-pointed by Angela Hill while absorbing a massive 8.13 significant strikes per minute with only 38% striking defense and 34% accuracy, a -3.6 strike differential. At 38 years old, her reaction time appears to be eroding against UFC-level volume strikers. Polastri, ten years younger, is exactly that archetype: 6.22 SLpM at 56% accuracy with 59% defense, a +1.04 differential, and she carries opportunistic grappling (80% TD accuracy on selective attempts). Polastri's losses have come to grinding wrestlers (Alencar, Godinez) and slick counter-strikers, not to fighters who plant and trade, which is Xiong's game. The Elo model narrowly favors Polastri (52/48) despite Xiong's provisional rating being inflated by reputation. Home crowd in Shanghai helps Xiong emotionally, but the pace differential over three rounds should let Polastri bank rounds behind volume. Xiong's power keeps her live, so confidence stays moderate.

Polastri owns the stronger statistical profile, landing at a higher rate and accuracy while absorbing substantially fewer strikes. Her positive striking differential contrasts sharply with Xiong's negative differential, and her takedown threat should further disrupt Xiong's boxing rhythm. Xiong's experience and power make the matchup competitive, but her low defensive rate and high absorption favor Polastri over three rounds.