National Bank Open Tennis Betting Guide: Canada’s Home Masters

Every summer there’s one week where the tennis calendar stops pretending it belongs to Paris or New York and comes home. The National Bank Open is our Masters, played in Toronto and Montreal, and the crowd noise gets loud enough to move a betting line. That’s the opportunity. When a whole country pulls for the same handful of players, the market tilts. A tilted market is where you find prices worth taking.

We run the full slate of National Bank Open odds every year: outrights, match markets, set betting, and props across both the ATP and WTA draws. This guide walks the event the way a bettor actually reads it, then points you at where the value hides. If you’re still getting comfortable with tennis wagers, our beginner’s guide to betting on tennis in Canada covers the basics before you dive in.

How National Bank Open betting works

The National Bank Open is a mandatory Masters 1000 stop on the men’s tour and a WTA 1000 on the women’s, which puts it one rung below the Grand Slams and level with Indian Wells, Miami, and Rome. The winners collect 1,000 ranking points, so nobody’s coasting through the early rounds to save legs for the US Open.

Here’s the part that makes it ours specifically: the men and women play the same fortnight in different cities, and the cities swap every year. In 2025 the men were at Sobeys Stadium in Toronto and the women at IGA Stadium in Montreal; in 2026 they flip, with the ATP field heading to Montreal and the WTA to Toronto. Both events run outdoor hard courts.

The other thing that changed recently matters for how you read the draw. Starting in 2025 the tournament expanded from a one-week, 56-player event to a 12-day format with 96 singles players and 32 doubles teams, now entering its second year. Bigger draw means the top seeds get first-round byes, so if you’re backing a favourite outright, you’re paying for one fewer match of variance. It also means more first-round dogs with a live puncher’s chance, which is where match-market value tends to sit early.

Two cities, two conditions

Same surface classification, different feel. Both venues are outdoor hard, but Toronto and Montreal don’t play identically, and the difference shows up in serve-heavy matchups more than anywhere else.

Faster, lower-bouncing conditions reward big first serves and short points, which is good news for the servers and bad news for anyone whose game is built on grinding out long rallies. Slower or higher-bouncing conditions give the returners and the counterpunchers time to work, and suddenly the grinder who looked overmatched on paper is dragging the favourite into three sets.

You won’t get a court-pace readout on the tournament website, so read the early rounds. If aces are flying and breaks of serve are rare through the first two days, the conditions are playing quick, and that’s the week to lean into serve-bots in match and set markets. If you’re seeing long baseline exchanges and plenty of breaks, downgrade the servers and give the grinders more credit than the price does. For the deeper mechanics of how hard-court speed reshapes a matchup (and why ace counts shift with conditions), we cover that in our guide to how surface, weather, and match conditions shape the aces line.

The home-favourite tax

This is the one that costs Canadians money if they’re not careful. When a hometown player walks onto the court, the price on them gets shorter than the tennis alone justifies, because a chunk of the money coming in is patriotic, not analytical.

That’s a documented pattern, not a hunch. Research on betting-market pricing has found that sportsbooks don’t just passively balance action; they set prices knowing the public over-bets favourites, and the home favourite draws a disproportionate share of the money. The data runs heaviest on favourites and home favourites, exactly the bias a sharp book prices around. When the whole country hammers one side, the number moves past fair, and the value quietly slides to the other guy.

That doesn’t mean fade every Canadian on principle. Sometimes the home player is genuinely the better bet. Bianca Andreescu won the whole thing in 2019, and Victoria Mboko beat Naomi Osaka in the 2025 Montreal final at 18 years old to become the first Canadian singles champion since Andreescu. Real runs happen. The job is separating the run from the narrative.

Two questions do most of that work. First, what’s the actual recent form, not the highlight reel? A quarter-final at a slam six weeks ago means more than a magazine cover. Second, is the matchup good, or just the storyline? A Canadian server drawn against a shaky returner is a real edge. A Canadian grinder drawn against a top-five seed is a coin flip the crowd has talked into a coronation. When the price on the home player looks short and the matchup doesn’t back it up, the disciplined play is usually the other side, or no bet at all. For a fuller read on which Canadians are actually worth backing this year, see our Canadians-on-tour breakdown.

Every National Bank Open market

Once you know the shape of the event, here’s the full board and how each piece behaves at this tournament.

• Outrights. Backing a champion before or during the event, sometimes called a futures bet. The expanded 96-draw means top seeds skip a round, so short-priced favourites carry slightly less first-week risk than they used to. Live outrights during the second week are where a big-name early exit can hand you value on a seed the market underrated.
• Match markets (moneyline). Pick the winner of a single match. This is the bread and butter, and it’s where the home-favourite tax bites hardest, so it’s the market to be most disciplined in.
• Set betting. Predicting the exact set score (2-0, 2-1, and so on). Rewards a read on whether a match is a blowout or a grind. Servers in fast conditions push toward straight-set lines; returners’ matchups in slow conditions lean toward the extra set.
• Totals (games). Over or under a set number of games in a match. Conditions drive this one directly. Quick courts and big servers mean fewer breaks and lower totals; slow courts and heavy returning mean more breaks and higher totals.
• Props and specials. Player-specific and event-specific lines: aces, whether a match goes the distance, a Canadian to reach the quarters, that kind of thing. Thinner markets, which cuts both ways. Less sharp money means softer numbers, but also less liquidity, so shop the read carefully.

For a full breakdown of every wager type, see our tennis betting markets guide. You can find all of these across both draws in our ATP and WTA tennis markets.

Reading the summer form into the event

The National Bank Open doesn’t happen in a vacuum. It sits in the middle of the North American hard-court swing, right after the grass season and right before the US Open, and the form players bring in tells you plenty. A player fresh off a deep Wimbledon run might be flying or might be gassed; a player who’s been grinding the smaller hard-court tune-ups might have exactly the timing this surface rewards.

The trap is over-weighting a single result. One good week at a tune-up is a data point, not a trend, and post-slam form can be noisy because motivation and fatigue swing hard in either direction after a major. We break down how to actually read tune-up and post-slam signal on our summer tune-ups page. Use it as the lens for everything above.

This year’s field and headline prices (updated for 2026)

The 2026 event runs August 1 to 13, with the men in Montreal and the women in Toronto. The men’s field is missing the world’s top three stars, so Montreal’s own Felix Auger-Aliassime carries most of the home hopes: ranked a career-high world No. 4, he takes the second seed behind top-seeded French Open champion Alexander Zverev. On the women’s side in Toronto, Aryna Sabalenka headlines the seeds.

Two talking points before you bet the board. This is the highest seeding Auger-Aliassime has ever held at a Masters 1000, so the home price will run short. But an opening-match loss last year in Toronto says temper the enthusiasm. Also watch where the defending champions land in the draw: last year’s winners set the market’s anchor, and a title defence in front of a home crowd is exactly the storyline that shortens a number past fair.

Our event, our edge

The National Bank Open is the one tournament where knowing the room is a genuine edge. The crowd bias is real, the two-city split changes how the draws play, and the market moves in patterns you can read if you’re paying attention. Fade the narrative when the matchup doesn’t back it up, respect the surface read, and let the home-favourite tax work for you instead of against you.

We’ve got the full board live across both draws. Take a look at our tennis markets and back your read. For more previews, picks, and strategy across the tour, head to our tennis betting hub.

If betting stops being fun, take a break. Set your limits and stick to them, and if you need support, help is available through ConnexOntario.

FAQ

Where is the National Bank Open played? Toronto and Montreal, and the cities swap the men’s and women’s events every year. In 2025 the men played Toronto (Sobeys Stadium) and the women Montreal (IGA Stadium); in 2026 they flip, with the men in Montreal and the women in Toronto. Both are outdoor hard courts.

What level is the tournament? The men’s event is a mandatory ATP Masters 1000 and the women’s is a WTA 1000, one tier below the Grand Slams. Champions earn 1,000 ranking points.

Why do Canadian players have shorter odds at home? Public money leans on favourites and on hometown players, so books price around that bias and the number on a Canadian often runs shorter than the tennis alone justifies. It’s the same over-betting pattern economists have documented in other sports. Check recent form and the matchup before backing the home player on price.

What markets can I bet on the National Bank Open? Outrights, match moneylines, set betting, game totals, and player and event props, across both the ATP and WTA draws.