Why is it das Jogging?

Jogging ends in -ing, and most nouns ending in -ing are neuter: in a German dictionary, 84% of them take das.

All nouns ending in -ing
Sense 1
das

Meaning

[1] Sport: Loose, even, not particularly fast running than recreational sports

[1] Sport: lockeres, gleichmäßiges, nicht sonderlich schnelles Laufen als Freizeitsport

Examples

[1] "Whether jogging or walking, many health insurance companies reward the sporting activities with bonus program" [1]

[1] „Ob Jogging oder Walking, viele Krankenkassen honorieren die sportlichen Aktivitäten mit Bonusprogrammen.“[1]

Declension

1 Singular Plural
Nominativ das Jogging —
Genitiv des Joggings —
Dativ dem Jogging —
Akkusativ das Jogging —

Dictionary entries include material from Wiktionary. Wiktionary