Most trade calculators add up two columns of numbers and tell you which is bigger. That is not how experienced managers argue about trades, and it is not how this one works. Here is the whole approach, without the arithmetic.
Last updated September 2026
Every player carries a market value, and that value is not somebody's opinion. It is rebuilt continuously from trades actually completed in thousands of live fantasy leagues. Nobody sits in a room and decides a receiver is worth 9,600 — the market decides, in the same way a share price is set by what people will actually pay.
This matters most in November. A ranking published in August is a snapshot of what people believed before a ball was thrown. A market price moves when a rookie takes over a backfield, when a starter goes down, when a quiet veteran suddenly sees eleven targets a week. By the time you are arguing about a trade in week nine, the August list is describing a season that no longer exists.
Because the source is trades rather than rankings, the numbers reprice themselves as the season unfolds. There is nothing to update by hand and no point at which the tool goes stale.
The same player is worth wildly different amounts in different leagues, and most calculators quietly ignore this. Roundtable reads your actual settings and re-prices everyone before it grades anything.
| Setting | What it changes |
|---|---|
| Superflex or 2QB | Quarterbacks become roughly twice as valuable, because you can start two and everyone needs a second one. |
| Reception scoring | Standard, half or full PPR shifts the balance between volume receivers and touchdown-dependent ones. |
| TE premium | Extra points per tight-end catch pull that position up the board. |
| Starting slots | A league that starts three receivers values the twenty-fifth receiver far more than one that starts two. |
| League size | Twelve teams chasing the same players makes good ones scarcer than eight teams do. |
| Bench depth | A short bench means depth is cheap — you can replace it off waivers. A deep one means it is worth holding. |
| IR slots and rules | Whether an injured player costs you a usable roster spot, or can be parked for free. |
This is the piece that separates Roundtable from a calculator that just adds up columns, and it exists because of something obvious that spreadsheets forget: you cannot start everybody.
Imagine two packages with identical totals. One is a single elite player. The other is three decent ones. They are not equal, and every experienced manager knows it. The elite player goes into your lineup every week and wins you matchups on his own. Of the three decent ones, one starts, one is a flex you would rather not use, and one sits on your bench doing nothing.
So Roundtable charges a premium for the best player in the deal. Buying the top asset costs more raw value than the totals suggest, and the more ways the return is split, the steeper the premium gets — three-for-one costs more than two-for-one, four-for-one more again.
That premium is not a fixed number. It scales with how scarce genuine difference-makers are in your league: deeper starting lineups and shallower benches push it up, because there are fewer places to hide a mediocre player. Shallower leagues pull it down. You can see the exact figure the tool is using on the trade table, and switch it off entirely if your league genuinely trades on straight totals.
The tax cuts the same way on both sides. If you are the one sending the best player, it means you should be receiving noticeably more than the raw totals to make the deal worth doing. The tool will tell you so.
Two more constraints get priced, and both come from the same place — a fantasy roster is a fixed number of slots, not an unlimited warehouse.
A package of four players uses four roster spots. Even if all four are useful, the fourth one is displacing somebody you already have. Roundtable shaves a little value off each additional piece in a package to reflect that, and shaves more in leagues with short benches where the squeeze is real.
If you start two running backs and a trade brings you a fourth startable one, the fourth is not adding what his price tag says. The tool discounts players who pile up behind a position you have already filled.
An injured player is worth less — but how much less depends on your league. If you have an open IR slot and the league's rules let you use it for that injury designation, holding him costs you nothing but patience. If you have no IR slot, he is occupying a bench place and doing nothing with it. Roundtable reads your league's IR rules and applies only half the usual injury discount to a player you can legally stash.
Market value answers "who got more?". It does not answer "did this help?". Those come apart more often than you would think.
So Roundtable rebuilds each side's best legal starting lineup before and after the trade, using your league's actual slots, and reports the difference. A trade that adds value to your roster but leaves it all on your bench gets graded as what it is: a paper gain. A trade that gives up a little total value but upgrades the weakest slot in your lineup often grades better than the raw numbers do.
A fair trade and an accepted trade are different things, and this is where the Trade Assistant does its work. Rather than asking "is this even?", it asks "will this specific person say yes?" — and prices several things that a totals-based calculator cannot see.
All of that produces an estimate of how likely an offer is to be accepted, and a short explanation of why — so you can put the reasoning in the message you send, which is usually what actually gets a trade over the line.
The other direction is often more useful. You have a deal in mind, you have sent it or you are about to, and something about it is wrong — they want a receiver and you offered a running back, there is more injury risk on your side than you are comfortable with, or it simply is not enough.
Say which of those it is, and Roundtable searches small edits to the trade you already have: add a piece, drop one, swap one for another, or send somebody to a different team. It reports the two or three versions that answer the complaint with the fewest changes, shows exactly what moved, and tells you when a version is going to be a hard sell for somebody. It works across two or three teams.
Both of these are the paid part of the site. The trade table itself — building a deal across up to five teams and grading it — is free and stays free.
It will not tell you who is going to score on Sunday. It does not read injury reports or beat-writer chatter; it reads what the trade market did about that news, which is usually faster and always less breathless.
Acceptance likelihood is a model's estimate based on roster shape and market movement. It is not a forecast of what any individual will do — some managers will not trade with you regardless of what the numbers say, and some will accept things no model would predict.
And a value that looks wrong to you may well be wrong. The market is a crowd, and crowds are consistently late on rookies and slow to forgive veterans. If you have watched every snap of a player's season and the number disagrees with you, that is worth something. Use this to argue better, not to stop thinking.