NFL teams acquire unique college players during the summer through a secret bidding system known as the NFL Supplemental Draft. Instead of using a standard clock where teams take turns picking players one by one, franchises submit a single, hidden bid to the league office stating the exact draft round they want to give up for a specific player. The team that bids the highest round wins the player, but they must give up their matching draft pick in the next spring draft as payment.
This event is a special safety valve for professional football. It exists for college players who missed the regular spring draft deadline or suddenly lost their college eligibility due to academic issues or team rule violations. Because it uses a hidden auction style instead of a broadcasted order, the process requires intense backroom strategy from front offices.
How the Bidding Process Works
The core mechanism of this draft relies entirely on a blind auction. When an eligible college player gets approval from the league office to enter the summer draft pool, all 32 pro teams get a chance to evaluate the player’s skills. If a team decides they want to add that player to their roster, they cannot just call out a name. They must send a secret bid directly to the league coordinators before a strict deadline.
Each team can only submit one bid per player, and that bid specifies a draft round from round one down to round seven. For example, a team might decide a player is worth a third-round asset. They submit a bid for a third-round selection. Another team might think the player is only worth a fifth-round asset and submits a fifth-round bid. The league office collects these entries privately so no team knows what their rivals are offering.
Once the bidding window closes, league officials open the submissions and look for the highest round offered. If one team bids a second-round pick and everyone else bids lower, that team wins the rights to the player. But this system creates a major tactical problem for general managers. If a team bids too low, they lose the player entirely. If they bid too high, they overpay. Front offices must spend days guessing what other teams might do behind closed doors.
The cost of winning a bid is immediate and automatic. The winning franchise does not get a free player. Instead, the league forces that team to execute a draft pick forfeiture for the upcoming spring event. If you win a player with a fourth-round bid in July, your team loses its regular fourth-round pick in the next regular draft. Furthermore, a team cannot bid a pick that they already traded away to another franchise in a previous deal. You must actually own the future asset to bid it.
The Weighted Lottery and Selection Order
A major question arises when two or more teams submit a bid for the exact same round. If three different franchises all bid a third-round pick for the same wide receiver, the league needs a clear tiebreaker to decide who gets him. The NFL resolves this by using a special priority list created through a weighted lottery system right before the draft begins.
The league divides all 32 teams into three distinct groups based on how well they played in the previous football season. These groups determine the overall odds of winning a tiebreaker bid:
- Group One: Teams that won six or fewer games in the prior season. These struggling teams get the highest priority and the most lottery chances.
- Group Two: Teams that won seven or more games but failed to qualify for the post-season playoffs.
- Group Three: The remaining teams that successfully made the playoffs in the previous year.
Inside the first group, the league runs a lottery to shake up the exact order. The team with the absolute worst record gets their name placed in the lottery drawing 32 times. The second-worst team gets 31 entries, and the numbers go down from there. This specific lottery math ensures that the worst teams retain the highest statistical odd of landing the top spot on the priority list, but it does not guarantee it. A five-win team could potentially luck into the number one spot over a two-win team.
Once the lottery draws are finished, a linear priority list from 1 to 32 is locked in. If a tie happens during the blind bidding, the team positioned higher on that fresh priority list wins the player. This three-tier grouping system keeps the process fair while still giving a slight advantage to franchises that need the most help rebuilding their rosters.
Why Teams Use This / When It Applies
This draft does not happen automatically every summer. The league only holds the event if eligible college players apply for it and get official approval. For a player to qualify, their circumstances must have shifted after the regular spring draft declaration deadline passed. If a player just neglected to sign up for the regular draft, the league will reject their summer application.
The most common reason a player enters the summer pool is a sudden loss of NCAA eligibility. A student-athlete might find out in June that they failed a required college course, making them ineligible to play college football in the autumn. Other times, a college program might dismiss a player for breaking team rules or university policies during summer workouts. When these surprises happen, the player faces a choice: sit out an entire year of football or try to enter the pro ranks via the summer auction.
For pro teams, using this system is all about risk management. Scouts spend months analyzing college players for the spring draft, but they have much less data on summer prospects. Teams often have to make multi-million-dollar decisions without seeing the player participate in a standard scouting combine. They must weigh the raw on-field talent against the off-field issues or academic problems that pushed the player out of college early.
Buying a player in the summer also disrupts a team’s future salary cap and roster planning. Because a won bid takes away a pick from the next spring, front offices must be careful. They are spending tomorrow’s money today. If a general manager thinks the next spring draft class will be exceptionally deep with talent, they will be very hesitant to give up a high-round asset during the summer.
Famous Examples from Major Games
While many summer drafts pass by without a single player being selected, several historic stars entered the league through this exact system. Teams that took the gamble sometimes walked away with franchise-altering players who went on to play in massive championship games.
One famous example happened in 1985 with quarterback Bernie Kosar. Kosar wanted to play for his home-state team, the Cleveland Browns. He skipped the regular spring draft by delaying his graduation paperwork, then officially entered the summer supplemental pool. The Browns made a big trade to secure the top priority slot and used a first-round selection to get him. Kosar went on to lead the team to multiple AFC Championship game appearances in the late 1980s.
Another major success story is wide receiver Cris Carter. In 1987, the Philadelphia Eagles used a fourth-round pick in the summer draft to claim Carter after he lost his eligibility at Ohio State. Carter showed immense talent but battled personal issues early on. He eventually moved to Minnesota, sorted out his career, and caught hundreds of passes, earning a spot in the Pro Football Hall of Fame. The Eagles got a legendary talent for the price of a simple fourth-round asset.
High bids are incredibly rare in modern football history. Spending a premier asset carries too much risk for modern front offices. In fact, a team has used a first-round pick only six times since the mid-1985 season. The last time any franchise spent a first-round bid in the summer was all the way back in 1992, when the New York Giants selected quarterback Dave Brown.
In recent years, the system has remained mostly quiet. The Arizona Cardinals made the last selection under this format when they spent a fifth-round choice on defensive safety Jalen Thompson. Thompson quickly earned a starting spot in their defense, proving that valuable players can still be found in the summer if scouts do their homework properly.
Common Misconceptions
Many casual football fans get confused about how the summer draft operates, leading to several common myths. The biggest misconception is that the supplemental event is just a second chance for any college player who did not get picked in the spring. That is completely incorrect. If a player entered the spring draft and went unselected, they immediately became a free agent. They cannot enter the summer pool.
Another common myth is that teams can bid whatever they want without consequence. Fans sometimes think a wealthy or aggressive team can just bid multiple picks for a single player. In reality, you can only bid one pick per player, and that pick must belong to your team for the very next draft cycle. You cannot offer choices from two or three years down the road.
People also assume that the draft is a public, televised event like the main spring draft. There are no cameras, no green rooms, and no public announcements for every bid. The entire process takes place over secure electronic networks and phone lines connected straight to the league headquarters. Fans only find out about the results when the league releases a final text summary showing if a bid succeeded.
Finally, some fans believe that teams must select a player if they hold a high slot in the lottery. The lottery order only matters if a team actually chooses to type in a bid. If a franchise has no interest in the available players, they simply do nothing. Most teams pass on every single player available in the summer, which is why many years end with zero picks made.
Frequently Asked Questions
When does the NFL Supplemental Draft take place?
The event is scheduled by league officials during the summer, usually in the middle of July. Under the current rules agreed upon by the league and the players’ union, the draft must finish at least seven days before the very first official summer training camp opens up for the new season.
What happens to players who go unselected in the summer draft?
If a player enters the summer pool and no team submits a valid bid for them, that player immediately becomes an undrafted free agent. At that point, they can sign a contract with any of the 32 teams in the league that has an open spot on their pre-season roster.
Can a team bid a draft pick that they acquired from another team?
Yes. A team can use any valid draft pick they own for the next season, whether it was their original pick or a pick they got through a previous trade. The only restriction is that the pick must be officially registered in their possession before the bidding starts.
Why did the league create the summer draft in the first place?
The league built this system in 1977 to handle unusual legal and collegiate issues. It gave the football world a structured way to welcome players whose lives or college eligibility status changed unexpectedly during the months between April and the start of summer football camps.