Arm Length: 31 3/4"
Hands: 9 1/2"
40 yard dash: 4.68 seconds
20 yard shuttle: 2.72 seconds
Vertical jump: 35 1/2"
Undrafted, but likely to get picked up as an undrafted free agent.
Wallace is deciding to come out in a draft that seems to be well stocked with defensive backs. Off the top of my head, Clemson's Mackensie Alexander, Florida State's Jalen Ramsey, Florida's Vernon Hargreaves, and KeiVarae Russell out of Notre Dame come to mind in some of the more talented prospects. It seems like it would have been more prudent for Wallace to get his degree and have that to fall back on. However, I can't criticize a person for making a life decision as big as this if they feel it's in their best interest.
Wallace was originally enrolled at the University of Washington and spent a year there. After his freshman year, he decided to return home and transfer to San Jose State (it should be noted that he left UW in good standing). In 2014, he earned second-team All-Mountain West selection in his first season with the Spartans. He followed that up in 2015 with an honorable mention selection.
Wallace possesses the type of body frame that has the makings of the NFL cornerback. He is tall, lean, and most importantly, has long arms. He has quick feet and is a fluid DB that can turn and run with wideouts. He has good acceleration and overall speed. Is able to read the eyes of the receiver, and thus, being able to swat away any passes as the comes near. Can be a physical tackler.
Can be high in his back pedal which leads to poor technique. While he possesses long limbs (which can help him), it can also help prevent him from making quick changes in direction. If he wants to be a decent tackler, he'll have to add weight by spending a year or two in the NFL training program. This is also going to be necessary if he's going to go against bigger receivers and not be pushed around. While he does play the eyes of his receiver well, he can rely on this too much, thus resulting in not making that many plays on the ball (He only had 5 career interceptions).