Why is it der Leader?

Leader ends in -er, and most nouns ending in -er are masculine: in a German dictionary, 86% of them take der.

All nouns ending in -er
Sense 1
der

Meaning

[1] Sport, Austrian, Swiss: leading athletes or leading team in a table

[1] Sport, österreichisch, schweizerisch: führender Sportler oder führende Mannschaft in einer Tabelle

[2] Kurzwort: Bandleader (head of a band)

[2] Kurzwort: Bandleader (Leiter einer Band)

Examples

[1] The leader received a edge of the knob at the NLB 34,000 round at 0: 7 in Siders.

[1] Der Leader kassierte in der 34. Runde der NLB beim 0:7 in Siders eine Kanterniederlage.

[2] If there is still some time left in his free hours, Strate plays the piano and is a leader of the band "Miss Otis

[2] Wenn in seinen freien Stunden noch etwas Zeit übrig bleibt, spielt Strate Klavier und ist Leader der Band "Miss Otis & The Delta Boys" …

Declension

1 Singular Plural
Nominativ der Leader die Leader
Genitiv des Leaders der Leader
Dativ dem Leader den Leadern
Akkusativ den Leader die Leader

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary