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Model picks & player props
Madison Keys
VS
Marta Kostyuk

Madison Keys vs Marta Kostyuk Picks & Predictions

Model updated Aug 25, 7:02PM UTC

We checked every price on this game against our own numbers. The green ones are the bets worth more than they should be.

Tennis
Fri 7 Aug 2026, 7:00PM
20
Game markets graded
0
Props graded
The model's one call for this gamethe prediction, first
Under 22.5 Total Games -128

The model graded 20 markets for Madison Keys vs Marta Kostyuk (Tennis) and this is the one it backs hardest — HIGH confidence. A $100 bet returns about $178 if it lands. This one is free — every other market and all player props are Pro. Tip-off Fri 7 Aug 2026, 7:00PM.

Our confidenceHigh
Chance to win63.6%
The price says52.4%
Best price-128
The rest of this game's boardgraded market by market
Total Games Under 22.5 High64% chance -128
Total Games High61% chance —
Total Games High66% chance —
Total Games Lean54% chance —
Total Games Lean57% chance —
Total Games High68% chance —
Total Games High69% chance —
Spread Lean55% chance —
Spread Lean57% chance —
High = 60%+ chance to win · Lean = 40–60% · Long-shot = under 40%
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Game picks

GOOD PRICE in green
Total Games
Under
22
-106
+ 19 more markets
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Calibrated model vs market

Our chance vs the price, market by market
PickMarketModel lean
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
UnderTotal GamesThe model likes this price 🔒 Unlock with Pro
Madison KeysSpreadThe model likes this price 🔒 Unlock with Pro
Madison KeysSpreadThe model likes this price 🔒 Unlock with Pro
Madison KeysSet 1 WinnerThe model likes this price 🔒 Unlock with Pro
Madison KeysSet 2 WinnerThe model likes this price 🔒 Unlock with Pro
Madison KeysSpreadThe model likes this price 🔒 Unlock with Pro
Madison KeysSpreadThe model likes this price 🔒 Unlock with Pro
Madison KeysSpreadThe model likes this price 🔒 Unlock with Pro
UnderSet 1 Total GamesThe model likes this price 🔒 Unlock with Pro
UnderSet 1 Total GamesThe model likes this price 🔒 Unlock with Pro
OverSet 1 Total GamesThe model likes this price 🔒 Unlock with Pro
UnderSet 1 Total GamesThe model likes this price 🔒 Unlock with Pro

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Who's out

Injuries & availability

Madison Keys

Player availability is not tracked for Tennis on this page. We only carry official injury/availability feeds for MLB, NBA, NFL and NHL.

Marta Kostyuk

Player availability is not tracked for Tennis on this page. We only carry official injury/availability feeds for MLB, NBA, NFL and NHL.

Weather & availability impact for this fixture

Conditions · who's out · how it moves the number
For Madison Keys vs Marta Kostyuk: Tennis weather isn't a tracked factor for this fixture on our data, and player availability isn't tracked for Tennis on this page.

General rule: weather isn't a material factor for this sport in our models — availability of key players is the variable that moves the line.

Pro — weather & injury-adjusted view

See the weather- and injury-adjusted projected line and the model's with/without delta for this fixture. 🔒 Unlock with Pro

Betting angles

Markets & form
Total GamesMarta Kostyuk vs Madison KeysNo line posted
61%model under %
2.01fair price
PickUnder 22Model60.9%Fair2.01Odds-106

Marta Kostyuk vs Madison Keys — Total Games (tennis). BetBetter most recently tracked: Under 22 at -106, fair price 2.01; our model makes it 60.9% (LEAN). BetBetter tracks this market continuously; free-board results appear here once there are enough of them.

Game HandicapMarta Kostyuk vs Madison KeysNo line posted
55%model cover %
2.16fair price
PickMadison Keys 0.5Model55.2%Fair2.16Odds+108

Marta Kostyuk vs Madison Keys — Game Handicap (tennis). BetBetter most recently tracked: Madison Keys 0.5 at +108, fair price 2.16; our model makes it 55.2% (LEAN). BetBetter tracks this market continuously; free-board results appear here once there are enough of them.

Set 1 Total GamesMarta Kostyuk vs Madison KeysNo line posted
86%model under %
1.23fair price
PickUnder 12.5Model86.5%Fair1.23Odds-833

Marta Kostyuk vs Madison Keys — Set 1 Total Games (tennis). BetBetter most recently tracked: Under 12.5 at -833, fair price 1.23; our model makes it 86.5% (HIGH). BetBetter tracks this market continuously; free-board results appear here once there are enough of them.

Set 1 WinnerMarta Kostyuk vs Madison KeysNo line posted
53%model win %
2.23fair price
PickMadison Keys set 1Model53.4%Fair2.23Odds+110

Marta Kostyuk vs Madison Keys — Set 1 Winner (tennis). BetBetter most recently tracked: Madison Keys set 1 at +110, fair price 2.23; our model makes it 53.4% (LEAN). BetBetter tracks this market continuously; free-board results appear here once there are enough of them.

Set 2 WinnerMarta Kostyuk vs Madison KeysNo line posted
53%model win %
2.23fair price
PickMadison Keys set 2Model53.4%Fair2.23Odds+110

Marta Kostyuk vs Madison Keys — Set 2 Winner (tennis). BetBetter most recently tracked: Madison Keys set 2 at +110, fair price 2.23; our model makes it 53.4% (LEAN). BetBetter tracks this market continuously; free-board results appear here once there are enough of them.

Madison Keys @ Marta Kostyuk — what the model found

Our model graded 20 betting markets for Madison Keys at Marta Kostyuk — 20 on the game itself and 0 on individual players. One pick is free on this page.

20
Game markets graded

The model checked every betting market for this game and graded 20 of them. One pick is free on this page — the one the model likes most. Scroll down to see it.

🔒 The other 19 graded calls for this game — with how much to bet on each — are for members.
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About this matchup

How we read the game

This page tracks the Bet Better model's pick history and predictions for Madison Keys vs Marta Kostyuk in the Tennis. You may also see this matchup written as Keys vs Kostyuk, or as Kostyuk vs Keys. The most recent game between them was Friday 7 August 2026. The model has generated 20 game picks for this matchup. Review the picks and historical data above to guide your Tennis betting strategy for this matchup.

Last time they played

Completed matches · last 3 meetings
Madison Keys 2–1 across the last 3 meetings
DateWinnerScoreTournamentSurface
6 Aug 2026Marta Kostyuk6-3 6-1Canadian Open · 3rd RoundHard
5 Jul 2024Madison Keys6-4 6-3Wimbledon · 3rd RoundGrass
8 Jul 2023Madison Keys6-4 6-1Wimbledon · 3rd RoundGrass
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