The Z Files: Keeper League Inflation Dos and Don'ts

The Z Files: Keeper League Inflation Dos and Don'ts

This article is part of our The Z Files series.

It's that time. Keeper leagues are gearing up for the 2021 season. Some are first clearing away spider webs after sitting 2020 out. This can mean only one thing: fantasy managers everywhere are misapplying the concept of inflation.

If you play in a keeper auction league, you're no doubt familiar with inflation. Unfortunately, you're probably approaching it wrong.

By means of review, it's the nature of keeper leagues to carry over talent at a price below what the player would cost in an open auction where everyone is available. Since prices are set using a zero-sum economy, if the available players in a keeper league all sold for their projected earnings, there would be a lot of available budget left on the table.

The conventional manner to account for the discrepancy is scaling up bid prices via an inflation factor. The factor is calculated as follows:

  • TLB: Total League Budget
  • SKFP: Sum of Keeper Freeze Prices
  • SKPP: Sum of Keeper Projected Prices

Inflation Factor = (TLB – SKFP) / (TLB – SKPP)

Here's a practical example for a 12-team league with a $260 per team budget.

  • TLB: 12 x $260 = $3120
  • SKFP: $720
  • SKPP: $1200

Inflation Factor = (3120 – 720) / (3120 – 1200) = 1.25 or 25% inflation.

Normal treatment is multiplying the projected earnings of all the available players by 1.25. Now, the sum of the adjusted prices of all the available players matches that which is total available to spend in the auction.

In this

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Todd Zola
Todd has been writing about fantasy baseball since 1997. He won NL Tout Wars and Mixed LABR in 2016 as well as a multi-time league winner in the National Fantasy Baseball Championship. Todd is now setting his sights even higher: The Rotowire Staff League. Lord Zola, as he's known in the industry, won the 2013 FSWA Fantasy Baseball Article of the Year award and was named the 2017 FSWA Fantasy Baseball Writer of the Year. Todd is a five-time FSWA awards finalist.
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