Julio Arce vs Song Yadong

Song Yadong's 2-fight experience advantage (9 vs 7 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Song Yadong for the expected result. Had Julio Arce pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.

This was not a title fight, so both fighters received standard ELO adjustments. However, since ELO is a relative system, victories over former champions can have an indirect impact, and Title Fight ELO can differ from Basic ELO.

Song Yadong gained a finish with a KO/TKO in round 2, earning finishing bonuses.

Song Yadong controlled the striking exchanges with 30 vs 13 significant strikes, 37.5% vs 16.7% accuracy, including 1 devastating knockdown. Song Yadong capitalized on this striking dominance.

Minimal ground action with brief exchanges. The low volume resulted in modest ground adjustments.

Song Yadong demonstrated solid activity levels with 99 days since his last fight, earning a moderate activity bonus for consistent scheduling. As the winner, Song Yadong capitalized on this activity level, while Julio Arce's 113-day layoff didn't factor into the scoring since only winners receive activity bonuses.

Song Yadong extended his 2-fight win streak, earning a momentum bonus. Julio Arce is back at 0 with this loss.

This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.