DKeX Parlays

What DKeX's combo book costs the people buying it.

Staked on parlays
contracts, days
Average price paid
implied chance
Actually won
of resolved
Buyer P&L
of stake gross · /contract after fees
About this page

DKeX launched multi-leg combos on 2026-08-26. It is the third venue here that can carry real parlay P&L, because it publishes both a parlay marker and a settled outcome — Kalshi and Polymarket US are the other two. Underdog and Novig mark parlays but never publish an outcome; ForecastEx and Rothera publish outcomes but sell no parlay.

Stake is taker-YES. A parlay is quoted by RFQ, so the buyer lifts the quote and is the taker; taker-NO flow is a cash-out counterparty exiting rather than a new stake. Same basis as every other venue's parlay series here.

Legs and sports come from the settlement report's market name, which spells the whole combo out — "Yes - DET Tigers -0.5 - Spread - 1st 5 Innings / Yes - Over 3.5 - Total Runs - 1st 5 Innings". Each leg is matched back to the single-leg market of the same name to recover its sport, which resolves 99.0% of legs; a combo with any unresolved leg is counted but left out of the sport split rather than guessed.

Everything is dated by TRADE date, not settlement date. A row says how much of the stake placed that day has resolved so far, so the newest days are the least settled. of all parlay contracts have resolved. Voided ($0.50) and pro-rated settlements are excluded from P&L and reported separately, so the drop is auditable.

Two figures, and the fee one is the comparable. Buyers are down before fees and after DraftKings Predictions’ all-in fee, which includes DKeX’s exchange fee — per contract, the same net basis used for the comparable Kalshi and Polymarket US rows. The clustered 95% interval on the gross return per contract runs % to % — . The interval is clustered on the combo, because every print of one combo shares a single settlement.

⚠ This page covers the combos in the trade records, which is about two thirds of them. DKeX’s daily market report accounts for 16,594,228 combo contracts; its time-and-sales report carries 11,304,853 of them, and 26,558 settled combos with report volume appear in no time-and-sales file at all. That is DKeX’s own publication, not a gap in collection — the files were re-downloaded from the source and match. P&L needs an executed price and only the time-and-sales records include one, so every level on this page (stake, contracts) is a floor rather than the venue total. The rates — price paid, win rate, return on stake — are measured on 11.2M contracts and are not affected by the missing third unless it trades differently, which cannot be checked.

The breakdown by price paid scores every combo trade against its settlement, after DraftKings Predictions’ all-in fee — on a 1¢ parlay that fee is 1¢ under the May tiers and 0.08¢ under the September ladder. DKeX prices combos in whole cents, so nothing trades below 1¢. Its records don’t say whether a trade was a buy or a sell, so a parlay sold back before settlement can’t be separated out the way Kalshi’s cash-outs are: every trade counts as a bet held to the end.

The parlay-versus-legs chart prices each leg at the last trade in its own single-leg market within the hour before the parlay traded, and counts only parlays whose legs are all in different games, as Kalshi’s chart does. That covers of DKeX’s settled parlay money: a parlay with a totals leg such as “Over 3.5 runs”, which doesn’t say which game, two legs in the same game, or a leg with no recent trade is left out.

The settlement-as-mark trap does not apply here, and it was checked. On Polymarket a settlement price is a running mark until the contract matured on a prior day, and treating same-day rows as final reports parlay buyers profiting. Every one of DKeX's combo tickers appears in the settlement reports exactly once, so no price ever moves, and 99.6% land on $0.00 or $1.00.

Where the money goes

Stake per day, split by how many legs the combo carried.

What a leg costs

Buyers pay the light bar and win the dark one; the gap between them is the house edge.

Priced chance falls from at legs to at ; the win rate falls faster, from to .

Buyer P&L by leg count

The same gap expressed as a return on stake.

⚠ days of trading. The aggregate is a large sample in contracts — resolved — but the per-leg-count bars are not stable yet, and the buckets showing buyers ahead are far more likely to be noise than a real edge. Read the shape, not the individual bars.

What bettors lost, by the price they paid

Share of stakes lost at each price after fees, with the dollars under each bar — . DKeX never prices a parlay below 1¢.

DKeX: What a multi-game parlay costs vs. multiplying its legs

A multi-game parlay is fairly priced at its legs' prices multiplied together, each taken at the moment the parlay traded. Over – DKeX bettors paid more than that: for legs worth .

Each dot is a group of tickets with similar odds: across is what their legs are worth multiplied together, up is what bettors paid, and the shaded gap above the dashed line is the markup.

One sport or several

Whether a combo's legs sit in a single sport, and which sports get combined.

of the stake whose legs all resolved to a sport crosses more than one sport (purple).