February 1, 2019
Women's Flyweight Bout
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Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Total UFC Fights | 3 | 1 |
| Experience Gap | 2 | -2 |
| Experience ELO | 1 024 | 968 |
| ELO Change | +32 | -32 |
Mara Romero Borella's 2-fight experience advantage (3 vs 1 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Mara Romero Borella for the expected result. Had Taila Santos pulled off the upset, her experience disadvantage would have delivered a modest upset bonus.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 021 | 979 |
| ELO Change | +21 | -21 |
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 | Mara Romero Borella | Taila Santos |
|---|---|---|
| Fight Outcome | Decision - Split | Decision - Split |
| Last Round | 3 | 3 |
| Time of Finish | 5:00 | 5:00 |
| Win Type ELO | 1 038 | 990 |
| ELO Change | +10 | -10 |
The controversial Decision - Split reflected a closely contested battle, with Mara Romero Borella receiving reduced bonuses due to the lack of clear domination.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Significant Strikes Landed | 29 | 36 |
| Significant Strikes Attempted | 83 | 100 |
| Total Strikes Landed | 84 | 57 |
| Knockdowns Scored | 0 | 0 |
| Striking ELO | 1 089 | 979 |
| ELO Change | +21 | -21 |
Mara Romero Borella edged the striking exchanges with 84 vs 57 total strikes, 29 vs 36 significant strikes. Mara Romero Borella capitalized on this striking dominance.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Takedowns Landed | 2 | 1 |
| Takedowns Attempted | 5 | 1 |
| Ground Control Time | 5:56 | 2:45 |
| Ground Strikes Landed | 9 | 0 |
| Ground ELO | 1 150 | 948 |
| ELO Change | +52 | -52 |
Mara Romero Borella controlled Taila Santos on the ground with 2 vs 1 takedowns, 5:56 of control time, 9 ground strikes, earning substantial ground ELO bonuses.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Days Since Last Fight | 371 | N/A |
| Activity ELO | 1 020 | 979 |
| ELO Change | +19 | -21 |
Mara Romero Borella demonstrated extended layoff with 371 days since her last fight, earning reduced bonuses due to inactivity rust. As the winner, Mara Romero Borella capitalized on this activity level, while Taila Santos's null-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Win Streak | 1 | 0 |
| Win Streak ELO | 1 025 | 979 |
| ELO Change | +23 | -21 |
Mara Romero Borella started a new win streak, earning a momentum bonus. Taila Santos is back at 0 with this loss.
| Metric | Mara Romero Borella | Taila Santos |
|---|---|---|
| Weight Class | Women's Flyweight | Women's Flyweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 021 | 979 |
| ELO Change | +21 | -21 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

