NL MVP 2026: Where to Get the Best Price on Prediction Markets
The 2026 National League MVP has collapsed into a two-man market. Pete Crow-Armstrong and Shohei Ohtani are the only names on the board carrying a real price, and every prediction market that lists season awards has both of them up. So the question stops being who wins and starts being a much more boring one: if you want a position, where do you buy it?
Most answers to that question compare screen prices and stop. That is the wrong number. Two exchanges can show you the identical price on Ohtani and charge you meaningfully different amounts to own the same contract, and the venue that looks cheapest at 10 contracts can be the expensive one at 1,000. Below is the actual arithmetic, run against live order books.
All prices in this piece were captured at 13:47 UTC on August 19, 2026. They will have moved by the time you read this. The method is what carries over.
What the board looks like
Two CFTC-regulated exchanges publish a public order book on this market: Kalshi and Polymarket. Kalshi lists 53 separate contracts on the award, including a Tie/Co-Winners line. Polymarket keeps 18 active. Here is the top of book on the two names that matter.
| Contract | Kalshi best ask | Polymarket best ask |
|---|---|---|
| Pete Crow-Armstrong | 60.0c | 59.0c |
| Shohei Ohtani | 43.0c | 43.0c |
| Both sides, summed | $1.030 | $1.020 |
That last row is the reason people trade these markets at all. A sportsbook quoting the same pair in mid-August was around -155 and +125, which sums to about $1.052. The exchanges are pricing a two-way market at 2 to 3 percent over fair rather than 5, and there is no risk desk deciding whether to take your money.
It also looks, from the top row, like Polymarket is simply cheaper. On Crow-Armstrong it is a full cent better. On Ohtani the two are identical. Neither of those conclusions survives contact with the fee schedule.
Every fee schedule here is the same curve
This is the thing almost nobody says out loud. Kalshi, Polymarket, and ProphetX all charge a fee that is the same quadratic shape, and they differ only in the coefficient in front of it.
- Kalshi: the taker fee is
0.07 x contracts x P x (1 - P), rounded up to the next cent on the order. The NL MVP series is flaggedquadraticwith a multiplier of 1, so the standard 0.07 applies. - Polymarket:
0.05 x shares x P x (1 - P)for the sports category, effective July 2026. Only takers pay. Makers pay nothing and collect a share of taker fees back as rebates. - ProphetX: 2 percent of net winnings per market, charged only when you win. Because you win with probability P and your profit is (1 - P), the expected cost per contract is
0.02 x P x (1 - P). Same curve, lowest coefficient on the board.
Two consequences follow immediately. First, fees peak at 50 cents and shrink toward both extremes, so a market's fee burden depends entirely on where its prices sit. Second, this particular market is close to the worst case. Crow-Armstrong at 60c and Ohtani at 43c are both sitting near the top of the fee curve. There is no cheaper corner of the board to hide in.
Here is what 100 contracts of Crow-Armstrong at 60 cents costs in fees at each coefficient.
| Venue | Fee on 100 contracts at 60c | As a share of the $60 stake |
|---|---|---|
| Kalshi | $1.68 | 2.8% |
| Polymarket | $1.20 | 2.0% |
| Novig (capped) | up to $0.75 | 1.3% |
| ProphetX (expected) | $0.48 | 0.8% |
Where the screen price lies to you
Ohtani is the clean case. Both exchanges show 43 cents. Buy 100 contracts and Kalshi charges $1.72 in fees while Polymarket charges $1.23. Your all-in cost per contract is 44.72c on one and 44.23c on the other. Identical price on the screen, half a cent apart in reality, on a position where half a cent is more than 1 percent of your stake.
Crow-Armstrong is the other direction. Polymarket's 59c looks like a cent of free money against Kalshi's 60c, and at small size it is: 60.30c all-in against 61.69c. But Polymarket's cheap inventory is thin. There are 30 shares at 59.0, then 52 at 59.1, then 76 at 59.2, and by the time you have filled a few hundred the book gaps to 60.7 and keeps climbing. Kalshi has about 640 contracts resting flat at 60c, then 390 more at 61c and a ladder into the thousands behind that.
So the answer changes with your ticket size.
| Order size | Kalshi all-in | Polymarket all-in | Cheaper |
|---|---|---|---|
| Pete Crow-Armstrong | |||
| 10 | 61.70c | 60.21c | Polymarket |
| 100 | 61.69c | 60.30c | Polymarket |
| 500 | 61.68c | 60.95c | Polymarket |
| 1,000 | 62.04c | 65.53c | Kalshi |
| Shohei Ohtani | |||
| 10 | 44.80c | 44.23c | Polymarket |
| 100 | 44.72c | 44.23c | Polymarket |
| 500 | 44.72c | 45.00c | Kalshi |
| 1,000 | 45.13c | 47.25c | Kalshi |
Walking both books contract by contract puts the crossover at roughly 685 contracts on Crow-Armstrong and 370 on Ohtani. Below that, Polymarket's lower fee coefficient and slightly better top of book win. Above it, Kalshi's depth wins by more than any fee schedule can give back. At 1,000 contracts of Crow-Armstrong the gap is 3.5 cents each, which is $35 on a $600 position, and the venue that gets you that $35 is the one that looked a cent more expensive on the screen.
The longshots are a different market entirely
Everyone below the top two is priced at or near zero, and that is where the two exchanges diverge hardest. Kalshi's minimum tick is one cent. Polymarket's on this market is a tenth of a cent. So every no-hope name on Kalshi's board, from Juan Soto to Kyle Schwarber to Bryce Harper, has a 1c ask because 1c is the floor. The same contracts on Polymarket are offered at 0.1c.
If you want a lottery ticket on somebody having a miracle September, you are paying ten times as much for it on the venue with the coarser tick. That is not a pricing opinion, it is a rounding rule.
It also distorts the field. Buying every contract on Kalshi's board costs $1.54, which reads like a 54 percent overround. It is not. It is two real prices plus 51 contracts stuck at a one-cent floor. Compare only the 15 players both venues list and the picture is $1.160 on Kalshi against $1.034 on Polymarket. Most of that remaining gap is still the tick.
The venues we could not price
Kalshi and Polymarket publish open order books, so their numbers above are measured rather than quoted. Three other places worth knowing about do not, and the honest thing is to say what we know about their cost structure and stop there.
ProphetX has the most interesting fee model in the category for a market like this. Charging 2 percent of net winnings means you pay nothing on a loser, and on a 60c contract the expected cost works out to under half a cent. That is a third of Kalshi's fee on the same trade. Whether it wins depends on where ProphetX's price sits, which is the point of this whole exercise: a better fee schedule on a worse price is still a worse deal.
Novig caps its taker fee around three quarters of a cent per contract, weights it by price the same way, and charges makers nothing. Robinhood is a different case: its prediction markets route to KalshiEX, so you are trading Kalshi's book with a Robinhood commission stacked on top. For the same contract at the same price, going to Kalshi directly is cheaper by construction.
Things that are not price but cost you anyway
Two structural details on this specific market are worth checking before you commit capital.
Settlement dates differ. Kalshi's NL MVP contracts carry an expiration of December 8, 2026, with an early-close condition once the award is announced. Polymarket's market end date is November 13. The BBWAA typically announces in mid-November, so both should resolve around the same time in practice, but the listed dates are not the same and the difference is how long your money can stay locked up in the worst case.
Tie handling differs. Kalshi lists an explicit Tie/Co-Winners contract. Polymarket does not carry one in its active set. Read the resolution rules on whichever venue you use rather than assuming a shared convention.
How to actually buy this
Four rules, in order of how much money they save you.
- Rest a bid instead of hitting the ask. On both exchanges the trading fee falls on the order that crosses the spread. Polymarket pays makers a rebate on top. On a market this close to the fee curve's peak, patience is worth more than venue selection.
- Size your order before you pick your venue. Under a few hundred contracts, take the lower fee coefficient. Over that, take the deeper book. The crossover on this market sits in the mid-hundreds, and it moves as liquidity moves.
- Price the whole order, not the top of book. The first 30 shares at 59.0c tell you nothing about what 500 shares cost. Walk the ladder.
- Check the tick before buying a longshot. On sub-penny prices the minimum increment is the entire trade.
FAQ
Which prediction market has the best NL MVP price right now?
As of the August 19 capture, Polymarket is cheaper net of fees for orders under roughly 370 contracts on Ohtani and 685 on Crow-Armstrong. Above those sizes Kalshi is cheaper because its book is deeper. There is no single answer that holds across order sizes.
Why do two exchanges charge different amounts for the same 43c contract?
Because the fee is a separate schedule from the price. Both venues use a fee that scales with price times one minus price, but Kalshi's coefficient is 0.07 and Polymarket's sports coefficient is 0.05. On a 43c contract that is a difference of about half a cent per contract.
Do prediction markets really have less vig than a sportsbook on MVP futures?
On this market, yes. The two live contracts summed to $1.030 on Kalshi and $1.020 on Polymarket, against roughly $1.052 for the same two-way at a mainstream sportsbook. Fees then add 2 to 3 percent of stake on the exchanges, so the edge is real but smaller than the raw price comparison suggests.
Why is every longshot exactly one cent on Kalshi?
One cent is Kalshi's minimum tick on this market. Any contract the market prices below a cent still has to be quoted at a cent. Polymarket's tick here is a tenth of a cent, so the same contracts are offered at 0.1c.
Does it matter whether I buy the favorite or sell the field?
It matters a lot for fees. The fee curve peaks at 50 cents, so a position taken at 60c or 43c is close to the most expensive place on the schedule. A contract at 5c or 95c costs a fraction as much to trade.
Bottom line
The NL MVP race is a two-name market on every venue that lists it, and the prices across those venues are within a cent of each other. All of the difference that is left lives in the fee schedule and the depth of the book, and the two of them point in opposite directions. Small ticket, take the lower fee. Large ticket, take the deeper book. Either way, the number on the screen is not the number you pay.
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