Naturally, both fashionistas looked stylish, with Kylie wearing black thigh-high boots, denim shorts, a striped button-up shirt, and a blue Team Quincy t-shirt. How Kylie managed to run the bases in those kicks we don't know, but hey, she looks glam!
As for Kendall? She wore black pants, black boots, a hat, and a white jersey.
Yes, Kylie and Kendall played for different teams! "Sibling rivalry," Kendall wrote on Instagram, along with a photo of her and Kylie rocking their respective team shirts.
All proceeds from the game benefitted Symphonic Love and Best Buddies.
Click through the gallery to see Kylie and Kendall playing kickball for a cause. Doesn't it look like a great event? Sound off in the comments.