TennisUPCOMING

Live· updated 26s ago

Roland Garros WTA: Sara Bejlek vs Sloane Stephens

Tennis · May 24, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00

Platform Prices — Sara Bejlek

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	3.13	32.0%	$0.32	---	Bet Here
Kalshi	1.67	60.0%	$0.60	+28.0pp	Bet Here

PolymarketBest

$0.32

Odds

3.13

Implied

32.0%

Edge

---

Bet Here

Kalshi

$0.60

Odds

1.67

Implied

60.0%

Edge

+28.0pp

Bet Here

All Outcomes

Sara Bejlek

Best: 60.0% on kalshi

▲+28.0%

Prediction market is 28.0% cheaper than sportsbooks. Consider buying on PM.

32.0%

60.0%

Sloane Stephens

Best: 68.0% on polymarket

▲+28.5%

Prediction market is 28.5% cheaper than sportsbooks. Consider buying on PM.

68.0%

39.5%

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 Bejlek

cheapest single venue: polymarket at 0.320

Retail tier ($5k/venue)

$10.0K@ 0.763 avg

+12.78% vs cheapest single venue

kalshi$5.0K @ 0.677

polymarket$5.0K @ 0.850

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

Sharp tier ($25k/venue)

$50.0K@ 0.823 avg

+3.42% vs cheapest single venue

kalshi$25.0K @ 0.795

polymarket

Arbitrage Opportunity

+39.86%theoretical onlyPAPER

Stake split for $1,000 bankroll

Sara Bejlek (polymarket, $448) — slippage 9.2% — eats into edge

Sloane Stephens (kalshi, $552) — slippage 4.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
Sara Bejlekthin	polymarket	3.13	$448	$1399
Sloane Stephensthin	kalshi	2.53	$552	$1399

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 Bejlek

Spread

28.0pp

kalshi at 60.0% vs polymarket at 32.0%

Expected Value

+87.50%

Per $1 staked at polymarket (3.13) if kalshi's price is fair.

Kelly Stake

25.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $277
Open Interest: —

Resolves: in 8d 13h

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

kalshi

updated just now

Volume: $19
24h Volume: $19
Liquidity: $0
Open Interest: $19

Resolves: in 16d 8h

Settlement Timeline

polymarketin 8d 13h · May 31, 2026, 2:30 PM
kalshiin 16d 8h · Jun 8, 2026, 9:00 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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