TennisUPCOMING

Live· updated 1m ago

Newport: Sayaka Ishii vs Kayla Cross

Other · July 6, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00

Platform Prices — Sayaka Ishii

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	2.44	41.0%	$0.41	+0.5pp	Bet Here
KalshiBest	2.47	40.5%	$0.41	---	Bet Here

PolymarketBest

$0.41

Odds

2.44

Implied

41.0%

Edge

+0.5pp

Bet Here

KalshiBest

$0.41

Odds

2.47

Implied

40.5%

Edge

---

Bet Here

All Outcomes

Sayaka Ishii

Best: 41.0% on polymarket

▲+0.5%

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

41.0%

40.5%

Kayla Cross

Best: 59.5% on kalshi

▲+0.5%

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

59.0%

59.5%

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.

Sayaka Ishii

cheapest single venue: kalshi at 0.405

Retail tier ($5k/venue)

$6.0K@ 0.444 avg

+1.62% vs cheapest single venue

kalshi$5.0K @ 0.437

polymarket$1.0K @ 0.479

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

Sharp tier ($25k/venue)

$26.0K@ 0.719 avg

+50.11% vs cheapest single venue

polymarket$1.0K @ 0.479

kalshi

Arbitrage Opportunity

+0.50%theoretical onlyPAPER

Fillable up to $880

Kayla Cross (polymarket, $593) — slippage 2.4% — eats into edge

Outcome	Platform	Odds	Stake	To win
Sayaka Ishiithin	kalshi	2.47	$407	$1005
Kayla Crossthin	polymarket	1.70	$593	$1005

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 — Sayaka Ishii

Spread

0.5pp

polymarket at 41.0% vs kalshi at 40.5%

Expected Value

+1.23%

Per $1 staked at kalshi (2.47) if polymarket's price is fair.

Kelly Stake

0.8%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $28
24h Volume: $28
Liquidity: $4.8K
Open Interest: $18

Resolves: in 7d 7h

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

kalshi

updated just now

Volume: $47
24h Volume: $47
Liquidity: $0
Open Interest: $45

Resolves: in 14d 7h

Settlement Timeline

polymarketin 7d 7h · Jul 13, 2026, 3:00 PM
kalshiin 14d 7h · Jul 20, 2026, 3:00 PM

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

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