please take a look at this. he was outrunning a jayce with boots and a triforce, and garen didnt have boots or movement quints... that is just wrong.

Demacia is the Kenya of Valoran, didn't you know?

Why did Jayce not use his speed gate?

345 MS

Q
Garen removes all slows affecting him and gains 35% bonus movement speed for a duration. In addition, his next melee attack within 4.5 seconds will deal physical damage, which can critically strike, and silence the target.
■ No cost
■Cooldown: 8 seconds

Bonus Movement Speed Duration: 1.5 / 2.25 / 3 / 3.75 / 4.5 seconds


Jayce
335 MS

passive
+8% movement speed

E
Bonus Movement Speed: 30 / 35 / 40 / 45 / 50 %
Active): Deploys an Acceleration Gate for 4 seconds, increasing the movement speed of all allies who pass through it for 3 seconds. This bonus fades over the duration.

Triforce
+8% movement speed
Jayce gains 40 movement speed for 1.25 seconds and ignores unit collision each time Transform is cast.

garen could probably manage to catch jayce eventually