US Open tennis parlays: A step-by-step guide to Dimers' best bets

The early rounds of the US Open serve up dozens of singles matches every day, which means dozens of individual betting markets to sift through. If you're looking to combine a few of those markets into a tennis parlay, Dimers' "Tennis Best Bets" tool does the heavy lifting: it runs every matchup through its model, flags the bets with the biggest edge over the sportsbooks, and lets you filter down to the exact bet type you want.

Here's how to turn that model output into an actual parlay slip, step by step.

Step 1: Go to the Tennis section on Dimers

Start on Dimers' tennis predictions hub. This is where every US Open match on the slate—men's and women's draws—gets its own model-generated line, win probability, and recommended play. Think of this as your starting point before you narrow things down.

Step 2: Select "Best Bets"

From the tennis hub, click into "Best Bets." This pulls up every edge Dimers' model has identified across the day's (or week's) matches, ranked and ready to filter. Rather than scrolling through every single match manually, this view surfaces only the bets where the model's projected probability diverges meaningfully from what the sportsbooks are pricing in.

Step 3: Filter for "Spread" bets only

Next, open the Filter panel and narrow the list down to "Spread" bets specifically.

In tennis, "spread" bets are game or set handicaps (for example, a player needs to win by more than a certain number of games). Isolating this market keeps your parlay legs consistent, which makes it easier to compare edge and probability across matches apples-to-apples rather than mixing spreads with totals or moneylines.

Once the filter is applied, Dimers tells you exactly how many qualifying bets are left to build from—in this case, 14.

Step 4: Sort by "Game Time (earliest–latest)"

With the bet type narrowed down, use the Sort menu to order the results chronologically.

Sorting this way isn't just tidy—it matters for parlay construction. If you're building a same-day parlay, you want to know which matches lock first so you're not left trying to track four different start times across the grounds. It also makes it easy to spot back-to-back matches on the same court or player patterns as the day progresses.

Step 5: Assess the model's findings and assemble your parlay

Now comes the actual analysis. With the list filtered to spreads only and sorted by game time, scan through the model's probability and edge columns for each matchup and pick the legs you want to combine.

Below is an example from the August 31 matches.

Here's how those four bets break down individually:

A few things stand out here.

Halys carries the strongest play of the four—a 63.5% win probability paired with a 6.1% edge, the highest of the group, which is why it's flagged as a "High Edge" pick. Blockx is next, also tagged "High Edge" at 5.5%, but notice the odds: at +100, the market is pricing that spread as close to a coin flip even though the model likes Blockx's chances at better than 55%.

Tiafoe and Zakharova round things out with smaller edges (2.3% and 2.6%), but both are still bets the model considers favorable relative to the sportsbook line—Zakharova in particular stands out since she's the big underdog on the moneyline side of her match but favored to cover the +5.5 game spread.

Putting it together as a parlay

Combine all four legs and here's what you're looking at:

• Combined odds: approximately +1083 with Caesars Sportsbook

On a $10 stake, +1083 would return a profit of roughly $108.30 (a total payout near $118.30) if every leg hits.

It's worth being clear-eyed about what a four-leg parlay actually is, though: every leg has to land for the ticket to pay out, so even a slate of positive-edge bets carries real variance once they're chained together. Blockx and Zakharova, with their thinner win probabilities, are the legs most likely to be the difference between a full payout and nothing.

Bettors who want to de-risk this same slate could always split it into two two-leg parlays, or bet the legs straight, rather than needing all four to land.

A quick note before you bet

Odds and lines move constantly—the numbers in this walkthrough are a snapshot from the moment those screenshots were taken, so double-check the live bets on Dimers before placing anything. And as with any parlay, bet within your means and gamble responsibly: stacking legs increases potential payout, but it increases the chance of losing the whole ticket even more.