TennisUPCOMING

Stale· updated 5m ago

Livesport Prague Open, Qualification: Rebeka Masarova vs Valentina Ryser

Other · July 18, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.0

Platform Prices — Rebeka Masarova

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.40	71.5%	$0.72	---	Bet Here
Kalshi	1.33	75.0%	$0.75	+3.5pp	Bet Here

PolymarketBest

$0.72

Odds

1.40

Implied

71.5%

Edge

---

Bet Here

Kalshi

$0.75

Odds

1.33

Implied

75.0%

Edge

+3.5pp

Bet Here

All Outcomes

Rebeka Masarova

Best: 75.0% on kalshi

▲+3.5%

Prediction market is 3.5% cheaper than sportsbooks. Consider buying on PM.

71.5%

75.0%

Valentina Ryser

Best: 28.5% on polymarket

▲+3.0%

Prediction market is 3.0% cheaper than sportsbooks. Consider buying on PM.

28.5%

25.5%

Aggregate liquidity

across every venue · the only place this number exists

For each outcome, the total fillable capacity if you split across every venue (Polymarket order-book depth + Kalshi order-book depth + Pinnacle / Bet365 / DraftKings stake limits). A whale can't deploy $50k on Polymarket alone without moving the price — but the same $50k splits cleanly across 4 venues at a much tighter aggregate fill price. That's what this panel shows.

Rebeka Masarova

cheapest single venue: polymarket at 0.715

Retail tier ($5k/venue)

$6.0K@ 0.784 avg

+0.63% vs cheapest single venue

polymarket$1.0K @ 0.780

kalshi$5.0K @ 0.785

What you can deploy retail-sized across every venue without moving a single market.

Sharp tier ($25k/venue)

$26.0K@ 0.848 avg

+8.79% vs cheapest single venue

polymarket$1.0K @ 0.780

kalshi

Arbitrage Opportunity

+3.09%theoretical onlyPAPER

Fillable up to $292

Rebeka Masarova (polymarket, $737) — slippage 3.9% — eats into edge

Valentina Ryser (kalshi, $263) — slippage 24.7% > 10% cap — fillable up to $86

Outcome	Platform	Odds	Stake	To win
Rebeka Masarovathin	polymarket	1.40	$737	$1031
Valentina Ryserthin	kalshi	3.92	$263	$1031

Stake the listed amount on each outcome at the matching platform. Whichever outcome wins, the payout covers the full bankroll plus the margin shown. Verify prices before placing — odds drift quickly.

Cross-Platform Edge — Rebeka Masarova

Spread

3.5pp

kalshi at 75.0% vs polymarket at 71.5%

Expected Value

+4.90%

Per $1 staked at polymarket (1.40) if kalshi's price is fair.

Kelly Stake

12.3%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $5
24h Volume: $5
Liquidity: $1.3K
Open Interest: $5

Resolves: in 7d 12h

Source: https://www.wtatennis.com/scores

kalshi

updated just now

Volume: $11
24h Volume: $10
Liquidity: $0
Open Interest: $11

Resolves: in 14d 8h

Settlement Timeline

polymarketin 7d 12h · Jul 25, 2026, 12:00 PM
kalshiin 14d 8h · Aug 1, 2026, 8:00 AM

Capital on each platform stays locked until that market settles. When platforms resolve at different times the earlier one frees up bankroll for the next opportunity.

Price History

Illustrative preview · historical tracking coming soon

Trade This Market

Trade on Polymarket Trade on Kalshi

Related Events

Tennis

▲+44.5%

Estoril Open, Qualification: Kyrian Jacquet vs Goncalo Castro

Vol: $2K

Tennis

▲+15.0%

Estoril Open, Qualification: Andrea Pellegrino vs Joao Dinis Silva

Vol: $9

Tennis

▲+14.8%

Estoril Open, Qualification: Taro Daniel vs Juan Carlos Prado

Vol: $62.672504

Tennis

▲+4.5%

ITF Kursumlijska Banja: Guglielmo Verdese vs Pierre Delage

18+ only. Gambling involves risk. Please gamble responsibly. If you or someone you know has a gambling problem, call 1-800-522-4700. OddsBridge does not accept bets -- we provide odds comparison and informational content only. Past performance does not guarantee future results. Odds and prices shown may not reflect the most current values. Always verify prices on the platform before placing a bet or trade.