June 4, 2021
Heavyweight Bout
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Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Total UFC Fights | 6 | 8 |
| Experience Gap | -2 | 2 |
| Experience ELO | 1 166 | 1 288 |
| ELO Change | -25 | +25 |
Jairzinho Rozenstruik's 2-fight experience advantage (8 vs 6 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Jairzinho Rozenstruik for the expected result. Had Augusto Sakai pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 043 | 1 098 |
| ELO Change | -20 | +20 |
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 | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Fight Outcome | KO/TKO | KO/TKO |
| Last Round | 1 | 1 |
| Time of Finish | 4:59 | 4:59 |
| Win Type ELO | 1 219 | 1 539 |
| ELO Change | -14 | +31 |
Jairzinho Rozenstruik earned an early finish with a KO/TKO in round 1 at 4:59, gaining additional bonuses for the first-round stoppage.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Significant Strikes Landed | 3 | 16 |
| Significant Strikes Attempted | 14 | 29 |
| Total Strikes Landed | 3 | 16 |
| Knockdowns Scored | 0 | 1 |
| Striking ELO | 1 111 | 1 450 |
| ELO Change | -54 | +54 |
Jairzinho Rozenstruik controlled the striking exchanges with 16 vs 3 significant strikes, 55.2% vs 21.4% accuracy, including 1 devastating knockdown. Jairzinho Rozenstruik capitalized on this striking dominance.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Takedowns Landed | 0 | 0 |
| Takedowns Attempted | 0 | 0 |
| Ground Control Time | 0:00 | 0:02 |
| Ground Strikes Landed | 0 | 1 |
| Ground ELO | 1 041 | 1 164 |
| ELO Change | -48 | +48 |
Minimal ground action with brief exchanges. The low volume resulted in modest ground adjustments.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Days Since Last Fight | 273 | 98 |
| Activity ELO | 1 113 | 1 324 |
| ELO Change | -11 | +29 |
Jairzinho Rozenstruik demonstrated solid activity levels with 98 days since his last fight, earning a moderate activity bonus for consistent scheduling. As the winner, Jairzinho Rozenstruik capitalized on this activity level, while Augusto Sakai's 273-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Win Streak | 0 | 1 |
| Win Streak ELO | 1 070 | 1 136 |
| ELO Change | -19 | +21 |
Jairzinho Rozenstruik started a new win streak, earning a momentum bonus. Augusto Sakai is back at 0 with this loss.
| Metric | Augusto Sakai | Jairzinho Rozenstruik |
|---|---|---|
| Weight Class | Heavyweight | Heavyweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 041 | 1 092 |
| ELO Change | -20 | +20 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

