July 5, 2019
Bantamweight Bout
Click any category to learn how it's calculated.
Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Total UFC Fights | 11 | 4 |
| Experience Gap | 7 | -7 |
| Experience ELO | 1 097 | 1 144 |
| ELO Change | -35 | +51 |
Song Yadong overcame a 7-fight experience disadvantage (4 vs 11 fights), earning a reward for beating the more seasoned veteran Alejandro Perez.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 059 | 1 082 |
| ELO Change | -22 | +22 |
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.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Fight Outcome | KO/TKO | KO/TKO |
| Last Round | 1 | 1 |
| Time of Finish | 2:04 | 2:04 |
| Win Type ELO | 1 184 | 1 293 |
| ELO Change | -47 | +107 |
Song Yadong earned an early finish with a KO/TKO in round 1 at 2:04, gaining additional bonuses for the first-round stoppage.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Significant Strikes Landed | 1 | 8 |
| Significant Strikes Attempted | 14 | 20 |
| Total Strikes Landed | 1 | 8 |
| Knockdowns Scored | 0 | 1 |
| Striking ELO | 1 033 | 1 311 |
| ELO Change | -150 | +150 |
Song Yadong controlled the striking exchanges with 8 vs 1 significant strikes, 40.0% vs 7.1% accuracy, including 1 devastating knockdown. Song Yadong capitalized on this striking dominance.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Takedowns Landed | 0 | 0 |
| Takedowns Attempted | 0 | 0 |
| Ground Control Time | 0:00 | 0:01 |
| Ground Strikes Landed | 0 | 1 |
| Ground ELO | 1 085 | 1 224 |
| ELO Change | -45 | +45 |
Minimal ground action with brief exchanges. The low volume resulted in modest ground adjustments.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Days Since Last Fight | 126 | 224 |
| Activity ELO | 1 154 | 1 114 |
| ELO Change | -27 | +34 |
Song Yadong demonstrated standard activity with 224 days since his last fight, earning a small activity bonus for reasonable scheduling. As the winner, Song Yadong capitalized on this activity level, while Alejandro Perez's 126-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Win Streak | 0 | 4 |
| Win Streak ELO | 1 084 | 1 103 |
| ELO Change | -23 | +32 |
Song Yadong extended his 4-fight win streak, earning a momentum bonus. Alejandro Perez is back at 0 with this loss.
| Metric | Alejandro Perez | Song Yadong |
|---|---|---|
| Weight Class | Bantamweight | Bantamweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 059 | 1 082 |
| ELO Change | -22 | +22 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

