Can One Franchise Go 17-0? Every Team's Best Roster, Simulated

In 17-0, could a single franchise's best players, drafted at the right positions, go undefeated? We ran the numbers on the game's own card pool and engine. The short version: a pure one-team roster cannot be drafted at all, the best hypothetical one has about a 1 in 59 shot at a perfect season, and the closest legal builds use two franchises.

The engine itself is explained in How the 17-0 Simulation Works, so here is only the recap. Team strength is a position-weighted average of your ten ratings (quarterback counts most at 2.5, linebacker and safety least at 0.9), plus chemistry, minus a penalty on your single lowest-rated player. Per-game win probability is then 0.40 + 0.48 × (strength/100)^1.5. "17-0 odds" below means winning all 17 games and then three bye-round playoff wins, using the same method as the guide.

1Why a one-franchise roster is impossible

In Classic and Pro Scout, an era you have drafted from drops out of the spin until all seven eras (the 1960s through the 2020s) have been used. That means every completed standard roster contains at least one card from each of the seven eras. (The Daily Eye Test does not use this rule.) So the real question is whether any franchise has cards in all seven eras.

None does. The card pool holds 1,218 cards. A card shows a team code, and a few franchises appear under more than one code because they moved, so we count each franchise once. The Rams combine STL and LAR cards, the Raiders combine OAK and LV, and the Chargers combine SD and LAC. The 1990s HOU cards are Houston Oilers players (Warren Moon, Bruce Matthews and others), and the Oilers are the franchise that became the Tennessee Titans, so those cards count with TEN as the Titans. The 2010s and 2020s HOU cards are the Texans. That gives 31 franchises. Merging changes nothing about chemistry, which still needs an exact code and era match, because no franchise has two different codes in the same era. Here is how many eras each franchise covers:

The Cowboys have cards in every era except the 1980s. The Rams, counting both St. Louis and Los Angeles cards, have every era except the 1970s. Counted from the October 2026 card pool.

The Cowboys and Rams come closest, and neither can fill a seven-era roster alone. Every franchise does have at least one card at all ten positions, though, so each one can field a hypothetical full roster. That is what we built next, ignoring the era rule.

2If the era rule did not exist: every team's best roster

For each franchise we ran an exhaustive search for the best possible roster: ten distinct players, maximizing team strength. Nine of the top ten reach the +4 chemistry maximum (the Seahawks have +2). Then we ran each roster's actual season. The season is seeded from the exact roster, so the same ten cards always produce the same season. These are the top ten:

Strength is weighted average plus chemistry minus the weak-link penalty. Win percentages and odds use the formulas in the guide. Ratings are the game's card ratings.

The bottom of the list is far worse. The Jaguars are last at strength 65.93 (1 in 4,896), followed by the Panthers at 68.64 (1 in 3,020) and the Texans at 70.74 (1 in 2,079). Folding the Oilers cards into the Titans helps Tennessee: Warren Moon (HOU 1990s, 90) and Bruce Matthews (HOU 1990s, 96) join Derrick Henry (TEN 2010s, 93), and the Titans' best roster ranks 19th at 77.74.

3The weak link reorders everything

The three highest weighted averages belong to the 49ers (92.98), Chiefs (92.94) and Steelers (92.46). After the weak-link penalty, the order becomes Chiefs first, Steelers fourth and 49ers fifth. San Francisco's roster has Joe Montana (SF 1980s, 99) and Jerry Rice (SF 1980s, 99), but its best available cornerback card is Charvarius Ward (SF 2020s, 81), and that single card costs 10.2 strength points.

The same story plays out lower down. Green Bay has the 13th best roster (81.84) despite a weighted average of 91.04, because its weakest card is a 79 tight end, a penalty of 13.2. The Raiders have a weighted average of 88.99, but a 77 defensive tackle drags them to 76.79, 21st overall. Of the 31 best rosters, none has a zero penalty: every single one has a card below 90.

The top roster, card by card

Chemistry is +4 from Mahomes with Hill and Kelce, all KC 2010s. This is the Chiefs' unique optimum. Its seeded season: 11-6, entering at the Wild Card, then four straight playoff wins and the title. A champion, but not 17-0.

The Cowboys, second, get +4 chemistry from QB Troy Aikman, WR Michael Irvin and TE Jay Novacek (all DAL 1990s), but their weak spots are Novacek at 84 and cornerback Trevon Diggs (DAL 2020s, 84). Swapping Diggs for Terence Newman (DAL 2000s, 84) gives the identical strength of 89.98, yet the seed changes: the Newman version goes 13-4 and loses its Wild Card game, while the Diggs version goes 14-3.

4The closest you can actually get: two franchises

Of the 465 possible pairs of franchises, only 34 have cards covering all seven eras between them, and all 34 can field a legal roster: all ten positions, distinct players, all seven eras. Twelve of the 34 include the Cowboys (paired with any of the 12 franchises that have 1980s cards) and seven include the Rams (paired with any of the seven franchises that have 1970s cards). Cowboys + Rams is the one pair on both lists. These are the best six legal builds:

*Two pairs have tied best rosters. Patriots + Rams can use QB Tom Brady from NE 2000s (shown, paired with WR Randy Moss for chemistry) or NE 2010s (paired with TE Rob Gronkowski); the 2010s version goes 15-2 with a bye and wins the title. Cowboys + Raiders can use S Cliff Harris (DAL 1970s, 87, shown) or Jack Tatum (OAK 1970s, 87); the Tatum version goes 14-3 with a bye, wins the Divisional and loses the Conf. Championship. The other four pairs each have a single best roster.

The leader is Steelers + Browns, with weighted average 94.42, chemistry +2 and a weakest card of 88 for a penalty of just 0.8. It is a unique optimum: QB Terry Bradshaw (PIT 1970s, 91), RB Jim Brown (CLE 1960s, 99), WR Lynn Swann (PIT 1970s, 88), TE Ozzie Newsome (CLE 1980s, 90), OL Joe Thomas (CLE 2010s, 96), EDGE T.J. Watt (PIT 2020s, 97), DT Mean Joe Greene (PIT 1970s, 97), LB Jack Lambert (PIT 1970s, 97), CB Rod Woodson (PIT 1990s, 98) and S Troy Polamalu (PIT 2000s, 96). Chemistry is +2 from Bradshaw and Swann.

The runner-up, Cowboys + Seahawks, is the only roster in our tables with no weak-link penalty at all, because every card is 90 or higher. It is seven Cowboys cards and three Seahawks: QB Troy Aikman (DAL 1990s, 94), RB Tony Dorsett (DAL 1970s, 92), WR Michael Irvin (DAL 1990s, 92), TE Jason Witten (DAL 2000s, 90), OL Larry Allen (DAL 1990s, 97), EDGE Micah Parsons (DAL 2020s, 95), DT Bob Lilly (DAL 1960s, 95), LB Bobby Wagner (SEA 2010s, 95), CB Richard Sherman (SEA 2010s, 92) and S Kenny Easley (SEA 1980s, 92).

5What this means for your draft

For comparison, the best legal roster with no team restriction reaches the strength cap of 100, which is 88% per game and about 1 in 14. The best one-franchise roster, the Chiefs at 1 in 59, is not even draftable, and the best two-franchise roster sits at 1 in 29. Even the best two-team build is about half as likely to go 17-0 as a ceiling roster drawn from any teams.

The lesson is that the best two-team builds win mostly by shrinking the weak-link penalty: the Steelers alone carry 8.7, Steelers + Browns just 0.8, and Cowboys + Seahawks none at all. The extra team buys a 90-plus card at a thin position more often than it adds a new star. None of the 19 rosters whose seeded seasons we report went 17-0: not the ten in the first table, not the six pairs, and not the Newman, Brady 2010s or Tatum variants.

In a real draft that means two things. Do not chase a team stack at the cost of a hole, because chemistry tops out at +4 and a weak card can cost far more. And when the spin offers a 90-plus card at a thin position, it is usually worth more than a second star at a deep one. For more on how scarcity shapes picks, read How to Build the Perfect NFL Roster.