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. You can choose any market, but for this example we're going to focus on the games spread as that's where our tennis model is at its best.

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, 8.

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 actualy 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 (match) 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 September 2 matches.

A few things stand out here, starting with this: every leg on today's slate is tagged "High Edge," a cleaner setup than the mixed slates from the past couple of days.

Lehecka -4.5 carries the largest gap of the four, an 8.1% edge paired with a 63.7% win probability, the strongest combination of the group. Jodar -7.5 is close behind at a 7.7% edge, with the model giving him a 60.1% shot to cover, well above the roughly 52% implied by the market's -110 price. Tiafoe -5.5 checks in at a 7.0% edge, with a 58.2% model probability against a market price implying closer to 51%.

Alcaraz -6.5 has the smallest edge of the four at 5.2%, but even that clears Dimers' threshold for the "High Edge" tag. The model puts his chances of covering at 60.8%, compared with the market's -125 price, which implies closer to 56%.

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

• Combined odds: approximately +1108, using the best available price on each leg (the four legs come from different sportsbooks, so this isn't a single-book combined price)

On a $10 stake, +1108 would return a profit of roughly $110.80 (a total payout near $120.80) 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. Tiafoe and Jodar, with the thinnest win probabilities of the group, 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 bets were identified, 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.