Flash might win. He's known for his super speed and ability to move at incredibly fast speeds, which could give him an edge over Superman.
It's hard to say for sure. Superman has many powers besides speed, but Flash's speed is often portrayed as nearly unbeatable in comics. It could come down to the specific circumstances of the race.
The best chapter pointer here is Chapter 89, "Brother He, how can you be so unreasonable too?!". It opens with Director Sun took a step back, "What's the rush? and closes on If anyone should be mocking her, it should be me.] Wen Jiaojiao stood to....
If you want the clearest chapter reference, go to Chapter 102. Early on, When the camera cut back, the three of them had already returned to the...; later, the chapter leans on The mud on Jiang Yan's body had dried mostly from the wind, and he walked....
If you want the clearest chapter reference, go to Chapter 107. Early on, On the plane, when He Yun had taken off his mask and greeted her...; later, the chapter leans on She had also figured out his current predicament of being trapped by....
Look to Chapter 97 for the clearest answer. It begins with Suddenly, Jiang Li's livestream room was packed with people, and the..., keeps building through [I came from Weibo's trending topics, is Master Jiang really that awesome?, and lands on And you believe what she says?.
The best chapter pointer here is Chapter 105, "He Yun, let me give you a reading". It opens with But this did not elicit any sympathy from the woman on the phone; on the... and closes on However, the next second, things took a turn..
A practical answer is Chapter 76, because it turns the idea into a concrete scene. The chapter opens with Thinking of this, the aunt repeatedly praised, "Girl, hearing your words..., adds pressure through Leaving aside whether what she's made is good or not, just taking these..., and ends on Soon.
Look to Chapter 100 for the clearest answer. It begins with The barrage was about to die of laughter., keeps building through [Hahahaha, help, why is the young master always being chased!] [Next door,..., and lands on Her eyes flickered slightly as she grabbed the hand..
A practical answer is Chapter 97, because it turns the idea into a concrete scene. The chapter opens with Suddenly, Jiang Li's livestream room was packed with people, and the..., adds pressure through Master, you're the only one who can help me now., and ends on And you believe what she says?.
If you want the clearest chapter reference, go to Chapter 86. Early on, After over an hour of fuss, it was finally time to eat.; later, the chapter leans on Qi Tianyu, starving, crazily scooped up his curry rice into his mouth..
A practical answer is Chapter 79, because it turns the idea into a concrete scene. The chapter opens with Jiang Li leisurely said, "I bought this weeding machine, and according to..., adds pressure through Many had even spontaneously formed a fan group for Jiang Yan, promoting..., and ends on.