2021 NFL draft rankings: Top 150 prospects, best 500 by position in Mel Kiper's new Big Board

The 2021 NFL draft is finally here, and below is my final Big Board and position rankings for the class. There were some agonizing decisions, especially around the quarterbacks and wide receivers.

In the end, I went 150 deep on my top overall prospects. The top two names shouldn't surprise you if you've been following along the past few months. Clemson quarterback Trevor Lawrence and Florida tight end Kyle Pitts are elite prospects.

For the position groups, I rounded up nearly 500 prospects and put them into order, including more than 70 receivers and nearly 60 cornerbacks. Not all of those prospects will be drafted, of course, but I wanted to do my due diligence on the class as a whole -- and find some Day 3 sleepers.

A reminder: My Big Board is not a prediction of where prospects will be drafted, only where I have them ranked. I'll also be making minor tweaks right up until the draft begins, based on some late-breaking medical reports that have been slow to come in this strange cycle. Thanks to the fine folks at ESPN Stats & Info for the research help, as well. Here we go:

Click the links below to go to each section:

Top 300 overall prospects
1-25 | 26-50 | 51-75
76-100 | 101-125 | 126-150

Position rankings
QB | RB | FB | WR | TE | OT | G | C
DE | DT | ILB | OLB | CB | S | K/P | LS

1. Trevor Lawrence, QB, Clemson

HT: 6-foot-6 | WT: 220 pounds | Highlights

Lawrence has been my top-ranked prospect since last May, and he has one of the highest grades I've ever given a quarterback. He can be a superstar.

Stat to know: In six career games vs. top-five teams, Lawrence and Clemson went 4-2 and averaged 314.8 passing yards per game, with 12 touchdown throws to two interceptions with a Total QBR of 88.

2. Kyle Pitts, TE, Florida

HT: 6-6 | WT: 239 | Highlights

Like Lawrence, Pitts has one of the highest grades I've ever given at the position, but he's more than a tight end. He's an offensive weapon who will immediately improve a team picking in the top five.

Stat to know: After dropping nine passes from 2018-19 -- tied for third most among FBS tight ends -- Pitts improved his pass-catching with 43 receptions and zero drops on 66 targets last season (most targets in the FBS without a drop).