September 20, 2019
Flyweight Bout
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Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Total UFC Fights | 14 | 1 |
| Experience Gap | 13 | -13 |
| Experience ELO | 1 157 | 980 |
| ELO Change | +20 | -20 |
Sergio Pettis's 13-fight experience advantage (14 vs 1 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Sergio Pettis for the expected result. Had Tyson Nam pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 072 | 982 |
| ELO Change | +18 | -18 |
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 | Sergio Pettis | Tyson Nam |
|---|---|---|
| Fight Outcome | Decision - Unanimous | Decision - Unanimous |
| Last Round | 3 | 3 |
| Time of Finish | 5:00 | 5:00 |
| Win Type ELO | 1 144 | 971 |
| ELO Change | +29 | -29 |
Sergio Pettis 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 | Sergio Pettis | Tyson Nam |
|---|---|---|
| Significant Strikes Landed | 96 | 40 |
| Significant Strikes Attempted | 253 | 170 |
| Total Strikes Landed | 96 | 43 |
| Knockdowns Scored | 0 | 0 |
| Striking ELO | 1 118 | 967 |
| ELO Change | +33 | -33 |
Sergio Pettis dominated the striking exchanges with 96 vs 43 total strikes, 96 vs 40 significant strikes, 37.9% vs 23.5% accuracy. Sergio Pettis capitalized on this striking dominance.
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Takedowns Landed | 0 | 0 |
| Takedowns Attempted | 0 | 0 |
| Ground Control Time | 0:02 | 0:46 |
| Ground Strikes Landed | 1 | 0 |
| Ground ELO | 1 032 | 944 |
| ELO Change | +56 | -56 |
Sergio Pettis controlled Tyson Nam on the ground with 1 ground strike, earning substantial ground ELO bonuses.
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Days Since Last Fight | 280 | N/A |
| Activity ELO | 1 139 | 986 |
| ELO Change | +14 | -14 |
Sergio Pettis demonstrated standard activity with 280 days since his last fight, earning no activity bonus. As the winner, Sergio Pettis capitalized on this activity level, while Tyson Nam's null-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Win Streak | 1 | 0 |
| Win Streak ELO | 1 104 | 984 |
| ELO Change | +17 | -16 |
Sergio Pettis started a new win streak, earning a momentum bonus. Tyson Nam is back at 0 with this loss.
| Metric | Sergio Pettis | Tyson Nam |
|---|---|---|
| Weight Class | Flyweight | Flyweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 072 | 982 |
| ELO Change | +18 | -18 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

