World title lineage
A complete roll of IBU lightweight champions since 1909 — 3 champions across 4 reigns. LOU AMBERS is the current titleholder. The longest reign belongs to LOU AMBERS (89y 2m, 0 defences).
1937–present · 89y 2m · 0 defences
1912–1937 · 24y 11m · 4 defences
1911–1912 · 1y 9m · 0 defences
1909–1911 · 1y 6m · 1 defence
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