January 30, 2009
Lightweight Bout
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Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Total UFC Fights | 8 | 6 |
| Experience Gap | 2 | -2 |
| Experience ELO | 1 089 | 1 099 |
| ELO Change | +39 | -39 |
Clay Guida's 2-fight experience advantage (8 vs 6 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Clay Guida for the expected result. Had Nate Diaz pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 055 | 1 071 |
| ELO Change | +25 | -25 |
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 | Clay Guida | Nate Diaz |
|---|---|---|
| Fight Outcome | Decision - Split | Decision - Split |
| Last Round | 3 | 3 |
| Time of Finish | 5:00 | 5:00 |
| Win Type ELO | 1 154 | 1 227 |
| ELO Change | +13 | -13 |
The controversial Decision - Split reflected a closely contested battle, with Clay Guida receiving reduced bonuses due to the lack of clear domination.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Significant Strikes Landed | 49 | 49 |
| Significant Strikes Attempted | 99 | 135 |
| Total Strikes Landed | 75 | 70 |
| Knockdowns Scored | 0 | 0 |
| Striking ELO | 1 193 | 1 157 |
| ELO Change | +22 | -22 |
Clay Guida slightly outperformed the striking exchanges with 49.5% vs 36.3% accuracy. Clay Guida capitalized on this striking dominance.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Takedowns Landed | 4 | 0 |
| Takedowns Attempted | 11 | 8 |
| Ground Control Time | 8:50 | 0:50 |
| Ground Strikes Landed | 9 | 1 |
| Ground ELO | 1 354 | 1 152 |
| ELO Change | +85 | -85 |
Clay Guida dominated Nate Diaz on the ground with 4 vs 0 takedowns, 8:50 of control time, 9 ground strikes, earning massive ground ELO bonuses.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Days Since Last Fight | 137 | 137 |
| Activity ELO | 1 170 | 1 175 |
| ELO Change | +52 | -26 |
Clay Guida demonstrated solid activity levels with 137 days since his last fight, earning a moderate activity bonus for consistent scheduling. As the winner, Clay Guida capitalized on this activity level, while Nate Diaz's 137-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Win Streak | 3 | 0 |
| Win Streak ELO | 1 077 | 1 102 |
| ELO Change | +34 | -26 |
Clay Guida extended his 3-fight win streak, earning a momentum bonus. Nate Diaz is back at 0 with this loss.
| Metric | Clay Guida | Nate Diaz |
|---|---|---|
| Weight Class | Lightweight | Lightweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 055 | 1 071 |
| ELO Change | +25 | -25 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

