Value Over Replacement (VOR) is a form of Value Based Drafting that prioritizes players based on their projected value over another player at the same position deeper down the draft list. For our purposes, the replacement players at each position were identified by looking at the average number of picks for that position in the first 10 rounds of mock drafts.
In 12-Team PPR Drafts, for instance, an average of 48 Running Backs are drafted in the first 10 rounds (120 draft picks). The 49th ranking RB by Projected Points is Matt Breida, with a projected season total of 106.4. All Running Backs’ VORs are relative to this number. For instance, Saquon Barkley is projected 349 points, giving him a VOR of 242.6.
Here’s a look at the top players by preseason VOR in PPR for standard lineup formats (1 QB, 2RB, 2WR):
Because VOR is positional, the real advantage of the system is how it rearranges the priority of players at different positions. Notice in the PPR table how Melvin Gordon and James Conner are ranked above Davante Adams and DeAndre Hopkins, despite being projected fewer points. You may consider drafting them in this position because of the drop-off in value at the next tier.
Another example: Travis Kelce and Zach Ertz have a very similar VOR, far lower in rank than Kelce’s ADP. If Kelce falls to you at this ADP (17 or 18), you may wish to pass him up and reach for Ertz a couple rounds later. Grab value where it’s most available.
Finally, this is why you don’t draft QBs in the early rounds. Despite their much higher projections, most QBs offer roughly the same value (with a few exceptions, of course).
This scatter compares VOR scores to ADP. You can engage with it here:
More precise VOR can be calculated based on your league settings (a 3-WR league will likely boost the value of WRs over a 2-WR league), but these averages paint a dependable picture for most leagues.