"Pace" is Chapter 117 of Tsurezure Children. It is centred around Chizuru Takano and Takurou Sugawara.
It's the Athletic Festival and the main event is the 3 legged race. Chizuru is partnered up with Takeru and Takurou is partnered up with Patricia. However, they both really want to be with each other and constantly think that the other isn't interested in them. Takeru notices that Chizuru wants to be with Takuro and purposely says that his leg hurts. Takuro then looks towards Keisuke and Chiaki, but they also both exclaim that their legs hurt as well. Then Chizuru asks Takuro to be her partner and he accepts. After the race Chizuru asks if they could take a picture together.