May 16, 2026
Featherweight Bout
Click any category to learn how it's calculated.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Total UFC Fights | 15 | 10 |
| Experience Gap | 5 | -5 |
| Experience ELO | 1 296 | 1 232 |
| ELO Change | +31 | -31 |
Arnold Allen's 5-fight experience advantage (15 vs 10 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Arnold Allen for the expected result. Had Melquizael Costa pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 159 | 1 092 |
| ELO Change | +19 | -19 |
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 | Arnold Allen | Melquizael Costa |
|---|---|---|
| Fight Outcome | Decision - Unanimous | Decision - Unanimous |
| Last Round | 5 | 5 |
| Time of Finish | 5:00 | 5:00 |
| Win Type ELO | 1 440 | 1 384 |
| ELO Change | +47 | -47 |
Arnold Allen earned a clear Decision - Unanimous, receiving full decision bonuses for controlling the fight across all rounds. Of course, a finish would have yielded even greater rewards.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Significant Strikes Landed | 98 | 100 |
| Significant Strikes Attempted | 152 | 254 |
| Total Strikes Landed | 156 | 118 |
| Knockdowns Scored | 1 | 0 |
| Striking ELO | 1 440 | 1 328 |
| ELO Change | +56 | -56 |
Arnold Allen controlled the striking exchanges with 156 vs 118 total strikes, 64.5% vs 39.4% accuracy, including 1 devastating knockdown. Arnold Allen capitalized on this striking dominance.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Takedowns Landed | 7 | 0 |
| Takedowns Attempted | 7 | 4 |
| Ground Control Time | 9:28 | 1:45 |
| Ground Strikes Landed | 19 | 3 |
| Ground ELO | 1 361 | 1 144 |
| ELO Change | +98 | -98 |
Arnold Allen dominated Melquizael Costa on the ground with 7 vs 0 takedowns, 9:28 of control time, 19 ground strikes, earning massive ground ELO bonuses.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Days Since Last Fight | 112 | 84 |
| Activity ELO | 1 297 | 1 323 |
| ELO Change | +71 | -28 |
Arnold Allen demonstrated solid activity levels with 112 days since his last fight, earning a moderate activity bonus for consistent scheduling. As the winner, Arnold Allen capitalized on this activity level, while Melquizael Costa's 84-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Win Streak | 1 | 0 |
| Win Streak ELO | 1 330 | 1 173 |
| ELO Change | +15 | -14 |
Arnold Allen started a new win streak, earning a momentum bonus. Melquizael Costa is back at 0 with this loss.
| Metric | Arnold Allen | Melquizael Costa |
|---|---|---|
| Weight Class | Featherweight | Featherweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 153 | 1 091 |
| ELO Change | +20 | -20 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

