TennisUPCOMING

Live· updated 4s ago

Nottingham Open: Lois Boisson vs Dayana Yastremska

Other · June 15, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Lois Boisson

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	5.00	20.0%	$0.20	---	Bet Here
Polymarket	4.88	20.5%	$0.21	+0.5pp	Bet Here

KalshiBest

$0.20

Odds

5.00

Implied

20.0%

Edge

---

Bet Here

Polymarket

$0.21

Odds

4.88

Implied

20.5%

Edge

+0.5pp

Bet Here

All Outcomes

Lois Boisson

Best: 20.5% on polymarket

▲+0.5%

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

20.5%

20.0%

Dayana Yastremska

Best: 81.0% on kalshi

▲+1.5%

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

79.5%

81.0%

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.

Lois Boisson

cheapest single venue: kalshi at 0.200

Retail tier ($5k/venue)

$10.0K@ 0.353 avg

+56.68% vs cheapest single venue

kalshi$5.0K @ 0.225

polymarket$5.0K @ 0.480

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

Sharp tier ($25k/venue)

$50.0K@ 0.579 avg

+52.00% vs cheapest single venue

kalshi$25.0K @ 0.381

polymarket

Arbitrage Opportunity

+0.50%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Lois Boissonthin	kalshi	5.00	$201	$1005
Dayana Yastremskathin	polymarket	1.26	$799	$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 — Lois Boisson

Spread

0.5pp

polymarket at 20.5% vs kalshi at 20.0%

Expected Value

+2.50%

Per $1 staked at kalshi (5.00) if polymarket's price is fair.

Kelly Stake

0.6%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $2.2K
24h Volume: $927
Liquidity: $68.7K
Open Interest: $2.1K

Resolves: in 6d 22h

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

kalshi

updated just now

Volume: $1.5K
24h Volume: $1.5K
Liquidity: $0
Open Interest: $1.4K

Resolves: in 13d 23h

Settlement Timeline

polymarketin 6d 22h · Jun 22, 2026, 9:00 AM
kalshiin 13d 23h · Jun 29, 2026, 10:00 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

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