From his pose, yes i think he's running and Marco is chasing him.
The fact Marco who's fast didn't catch Pero on the sea or on land
Marco speed is overrated or is Pero just too gasy
Anyway, BM isn't even phased or worried
She wasn't even shocked that Kaido got hurt.. It's like she knows something that alliance don't know
She still thinks it's impossible for Kaido to lose.
Hm...
*Moriah and Oden... Kaido went on battling and gaining power until he grew to match WB and BM
*Base Teach and Mihawk ... Shanks went on to grow until he started rivaling WB Kaido BM
*Ace and Marco... TEACH already was overpowered before trashing Marco.. Teach became Emperor
*Cracker and Katakuri... Yonko candidate LUFFY then trains and will soon become Emperor level too
A pattern where both of these dudes had 2 people they fought
Oden > Kaido's milestone, the peson that pushed kaido to limits
Katakuri > Luffy's milestone
Mihawk > Shanks milestone
Ace > Yami Teach milestone.. Marco was total fodder to Gura Teach.