Why is it der Ringer?

Ringer 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] Athlete of the sport of ring fight (or rings)

[1] Sportler der Sportart Ringkampf (oder auch Ringen)

Examples

[1] The stronger wrestler hurled the weaker to soil

[1] Der stärkere Ringer schleuderte den schwächeren zu Boden.

[1] "One of the wrestlers breaks down in the competition"

[1] „Einer der Ringer bricht sich im Wettkampf nämlich das Genick.“

Declension

1 Singular Plural
Nominativ der Ringer die Ringer
Genitiv des Ringers der Ringer
Dativ dem Ringer den Ringern
Akkusativ den Ringer die Ringer

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary