Deoxys (Speed Forme)

Game data

Deoxys (Speed Forme) sits here because the games give its Speed Forme a base Speed of 180. That integer is a battle stat. The explanation is game lore, not a running speed.

1. A stat, not a stopwatch

   Base Speed is the number a battle uses before natures, items and stages. PokéAPI, Bulbapedia and Serebii agree on 180 for Deoxys (Speed Forme). None of them timed an animal.

2. A forme that spends its stats on Speed

   Deoxys changes forme, and the Speed Forme is the one whose stat block moves the most into Speed. The games are explicit that the formes are different builds of the same alien Pokémon.

3. Speed Forme

   Deoxys (Speed Forme) is Deoxys's Speed Forme. The games publish a separate stat block, so it is not folded into the base form.

Nearby on the base Speed list: Regieleki and Ninjask. Same kind of stat. Different lore.