December 29, 2011
Welterweight Bout
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Predictions and betting recommendations are only available for fights after July 10, 2025
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Total UFC Fights | 8 | 3 |
| Experience Gap | 5 | -5 |
| Experience ELO | 1 173 | 1 041 |
| ELO Change | +24 | -24 |
Dong Hyun Kim's 5-fight experience advantage (8 vs 3 fights) held true, but the algorithm limited the bonus to prevent over-rewarding Dong Hyun Kim for the expected result. Had Sean Pierson pulled off the upset, his experience disadvantage would have delivered a modest upset bonus.
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Title Fight ? | No | No |
| Title Fight ELO | 1 096 | 989 |
| ELO Change | +17 | -17 |
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 | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Fight Outcome | Decision - Unanimous | Decision - Unanimous |
| Last Round | 3 | 3 |
| Time of Finish | 5:00 | 5:00 |
| Win Type ELO | 1 207 | 1 004 |
| ELO Change | +24 | -24 |
Dong Hyun Kim 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 | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Significant Strikes Landed | 53 | 32 |
| Significant Strikes Attempted | 124 | 121 |
| Total Strikes Landed | 61 | 54 |
| Knockdowns Scored | 1 | 0 |
| Striking ELO | 1 139 | 973 |
| ELO Change | +49 | -49 |
Dong Hyun Kim controlled the striking exchanges with 53 vs 32 significant strikes, 42.7% vs 26.4% accuracy, including 1 devastating knockdown. Dong Hyun Kim capitalized on this striking dominance.
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Takedowns Landed | 2 | 0 |
| Takedowns Attempted | 4 | 2 |
| Ground Control Time | 2:08 | 2:09 |
| Ground Strikes Landed | 1 | 2 |
| Ground ELO | 1 314 | 1 037 |
| ELO Change | +13 | -13 |
Dong Hyun Kim landed 1 knockdown followed by 1 ground strike. Few ground strikes after a knockdown do not qualify for major ground ELO bonus.
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Days Since Last Fight | 182 | 245 |
| Activity ELO | 1 158 | 998 |
| ELO Change | +17 | -13 |
Dong Hyun Kim demonstrated standard activity with 182 days since his last fight, earning a small activity bonus for reasonable scheduling. As the winner, Dong Hyun Kim capitalized on this activity level, while Sean Pierson's 245-day layoff didn't factor into the scoring since only winners receive activity bonuses.
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Win Streak | 1 | 0 |
| Win Streak ELO | 1 116 | 994 |
| ELO Change | +17 | -16 |
Dong Hyun Kim started a new win streak, earning a momentum bonus. Sean Pierson is back at 0 with this loss.
| Metric | Dong Hyun Kim | Sean Pierson |
|---|---|---|
| Weight Class | Welterweight | Welterweight |
| Double Championship Fight | No | No |
| Basic/Category ELO | 1 096 | 989 |
| ELO Change | +17 | -17 |
This category provides the foundation ELO scoring without bonuses, except for exceptional multiple division champions.

