CI 100 • September 14, 2026
#36
Song Yadong
Bantamweight
This page reports Song Yadong’s published Cage Index standing for the current snapshot. CIR is a model rating of recorded UFC results, not a fight prediction or an official UFC ranking.
Ranking résumé
THE NUMBER IN CONTEXT
Current standing, division position and historical highs from the same CIR v2.8 archive used by the Historical Calculator.
Latest event impact
WHY THEY MOVED
Song Yadong did not compete on this card. Across the Sep 11, 2026 → Sep 13, 2026 recalculation, CIR moved 80.90 → 80.88 (-0.01). Any rank movement came from field-wide results, normal time decay and eligibility changes rather than a new bout for Song Yadong.
Card movement uses CIR v2.8 snapshots at 2026-09-11 and 2026-09-13. A rank can change because the fighter changes, other fighters change, eligibility changes, or evidence ages with time.
Historical CIR
CAREER RATING TIMELINE
Every qualified historical snapshot in the CIR v2.8 archive, from Jun 24, 2018 through Sep 14, 2026.
This chart is descriptive historical output, not a prediction. Inactivity can lower CIR through time decay even without a new loss.
How to read this number
Opponent-relative fight evidence drives ability; reliability changes the weight of that evidence; recency ages it; and bounded, division-specific championship support combines with ability. Those context displays are not separate additive bonuses.
See the CIR methodology →