NFL Combine 2015: Notable Day 6 Results for Draft's Top Prospects

The 2015 NFL Scouting Combine has come to a close.

Defensive backs were granted the last opportunity to showcase their talents in front of league personnel Monday at Lucas Oil Stadium, and they must have been feeling the pressure following impressive displays from a variety of prospects at other positions throughout the week.

Well, they delivered.

From astounding times in the 40-yard dash to a record-breaking broad jump to impressive displays of agility, the draft's crop of cornerbacks and safeties put on a show. While many surely bolstered their draft stocks on Day 6, only a handful are under consideration in the first round, so they'll be the focus here.

Let's take a look back at how five first-round hopefuls fared during their combine workouts.

Landon Collins, S, Alabama

David J. Phillip/Associated Press

The top safety by far in this year's draft, Alabama's Landon Collins wasn't overly impressive Monday; however, his workouts didn't affect his status, either.

Collins has good size at 6'0" and 228 pounds, and his 4.53-second 40-yard dash was phenomenal for a player of his stature. Although, while his speed made him a top performer, his agility was severely lacking. Take a look at this telling tweet from Bleacher Report's Dan Hope regarding Collins' three-cone drill:

Having the ability to change direction quickly is very important for every defensive back. Collins' lack of agility could be a little concerning to NFL scouts. Still, his speed is good enough to get him to the sideline in a hurry, and combined with his physical nature and improvement in coverage, Collins will still be selected well inside the first round.

Trae Waynes, CB, Michigan State

Julio Cortez/Associated Press

Michigan Sate's Trae Waynes entered the combine as the draft's consensus top cornerback. At 6'0" and 186 pounds with nice length, blazing speed and good strength, Waynes is a bump-and-run specialist who figures to flourish in the same role in the NFL. He solidified that notion on Monday.

Waynes already produced 19 reps on the bench press—earning top-performer honors—prior to Day 6 workouts, so Monday was all about speed and athleticism. He started on a high note, torching the 40-yard dash in just 4.31 seconds—the fastest time of all defensive backs.

Michigan State head coach Mark Dantonio apparently liked what he saw, via Mike Wilson of Scout.com:

During drills, it became apparent Waynes will need to work on his technique with his new positional coach; however, his workouts were solid enough maintain consideration as the draft's top corner.

Marcus Peters, CB, Washington

Julio Cortez/Associated Press

Marcus Peters entered the combine with red flags surrounding him. He was dismissed from Washington's football team due to several altercations with the coaching staff, and he needed to show an improved level of maturity in a hurry. His solid interviews helped that process along.

Monday was all about his ability on the field. At 6'0" and 197 pounds, Peters didn't turn heads with his 4.53-second 40-yard dash, but despite showing slightly insufficient speed, his agility was a sight to behold. Not only did he earn top-performer honors with a 11.26-second 60-yard shuttle, but he looked fluid in positional drills. Here's what Dion Caputi of National Football Post had to say:

It's still uncertain if teams will opt to make a move for Peters in the first round, but he didn't hurt his draft stock at the combine. Expect NFL personnel to keep a keen eye on the cornerback at his pro day to see if he can improve upon his 40-yard dash time.

P.J. Williams, CB, Florida State

Julio Cortez/Associated Press

Another player with some character concerns, Florida State's P.J. Williams entered the combine looking to solidify his status as a first-round selection with a strong showing in the workouts. His 4.57-second 40-yard dash didn't get him off to a solid start, as the 6'0", 194-pound corner should have been able to better that time a bit. However, he really impressed in other drills.

Williams displayed fantastic leaping ability Monday, recording a 40" vertical jump and 11' broad jump—both were second to only Connecticut's Byron Jones, the broad jump's new world-record holder, according to Corey Clark of the Tallahassee Democrat:

One of Williams' most coveted attributes is his ability to cover on an island. While he certainly has the athleticism to do so, his 40-yard dash time may come with concerns of getting beat deep by quicker receivers. This is another prospect who will want to improve on that number during his pro day.

Jalen Collins, CB, LSU

David J. Phillip/Associated Press

Jalen Collins may be one of the draft's most enigmatic prospects. The NFL Draft Advisory Board suggested that he remain in school for another year; however, Collins declared for the draft anyway and has been rewarded since, as his stock continues to rise. He has prototypical size for an NFL corner, measuring at 6'1" and 203 pounds, but he has a severe lack of experience, making just 10 starts at LSU.

Collins impressed early with a 4.48-second 40-yard dash—a great time for his size—and displayed some agility during his 6.77-second three-cone drill. He did receive praise for his performance, via Caputi:

However, some weren't impressed during his positional drills. Omar Kelly of the South Florida Sun-Sentinel tweeted his thoughts:

We probably won't be able to confidently say Collins will be a first-round pick until closer to the draft. NFL teams will likely want to interview him and watch him work out again before deciding if his upside is worth a gamble within the draft's first 32 selections.

Prospect measurements and combine results courtesy of NFL.com's results tracker.