TennisLIVE

Stale· updated 4m ago

Hamburg European Open: Sara Sorribes Tormo vs Alina Charaeva

Other · July 20, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Sara Sorribes Tormo

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.22	45.0%	$0.45	---	Bet Here
Polymarket	2.15	46.5%	$0.47	+1.5pp	Bet Here

KalshiBest

$0.45

Odds

2.22

Implied

45.0%

Edge

---

Bet Here

Polymarket

$0.47

Odds

2.15

Implied

46.5%

Edge

+1.5pp

Bet Here

All Outcomes

Sara Sorribes Tormo

Best: 46.5% on polymarket

▲+1.5%

Prediction market is 1.5% cheaper than sportsbooks. Consider buying on PM.

45.0%

46.5%

Alina Charaeva

Best: 54.0% on kalshi

▲+0.5%

Prediction market is 0.5% cheaper than sportsbooks. Consider buying on PM.

54.0%

53.5%

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.

Sara Sorribes Tormo

cheapest single venue: kalshi at 0.450

Retail tier ($5k/venue)

$10.0K@ 0.477 avg

+0.45% vs cheapest single venue

kalshi$5.0K @ 0.475

polymarket$5.0K @ 0.479

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

Sharp tier ($25k/venue)

$50.0K@ 0.542 avg

+10.43% vs cheapest single venue

kalshi$25.0K @ 0.490

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Fillable up to $123

Alina Charaeva (polymarket, $543) — slippage 3.5% — eats into edge

Outcome	Platform	Odds	Stake	To win
Sara Sorribes Tormothin	kalshi	2.22	$457	$1015
Alina Charaevathin	polymarket	1.87	$543	$1015

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 — Sara Sorribes Tormo

Spread

1.5pp

polymarket at 46.5% vs kalshi at 45.0%

Expected Value

+3.33%

Per $1 staked at kalshi (2.22) if polymarket's price is fair.

Kelly Stake

2.7%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

kalshi

updated just now

Volume: $508
24h Volume: $508
Liquidity: $0
Open Interest: $108

Resolves: in 13d 19h

polymarket

updated just now

Volume: $478
24h Volume: $478
Liquidity: $87.4K
Open Interest: $215

Resolves: in 7d 19h

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

Settlement Timeline

polymarketin 7d 19h · Jul 28, 2026, 8:00 AM
kalshiin 13d 19h · Aug 3, 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 Kalshi Trade on Polymarket

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