TennisUPCOMING

Live· updated 1m ago

Roland Garros WTA: Madison Keys vs Diana Shnaider

Tennis · June 1, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Madison Keys

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.71	58.5%	$0.59	---	Bet Here
Kalshi	1.67	60.0%	$0.60	+1.5pp	Bet Here

PolymarketBest

$0.59

Odds

1.71

Implied

58.5%

Edge

---

Bet Here

Kalshi

$0.60

Odds

1.67

Implied

60.0%

Edge

+1.5pp

Bet Here

All Outcomes

Madison Keys

Best: 60.0% on kalshi

▲+1.5%

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

58.5%

60.0%

Diana Shnaider

Best: 41.5% on polymarket

▲+2.5%

Prediction market is 2.5% cheaper than sportsbooks. Consider buying on PM.

41.5%

39.0%

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.

Madison Keys

cheapest single venue: polymarket at 0.585

Retail tier ($5k/venue)

$10.0K@ 0.604 avg

+0.02% vs cheapest single venue

kalshi$5.0K @ 0.604

polymarket$5.0K @ 0.604

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

Sharp tier ($25k/venue)

$30.0K@ 0.613 avg

+1.49% vs cheapest single venue

polymarket$5.0K @ 0.604

kalshi

Arbitrage Opportunity

+2.56%theoretical onlyPAPER

Stake split for $1,000 bankroll

Diana Shnaider (kalshi, $400) — slippage 6.8% — eats into edge

Outcome	Platform	Odds	Stake	To win
Madison Keysthin	polymarket	1.71	$600	$1025
Diana Shnaiderthin	kalshi	2.56	$400	$1026

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 — Madison Keys

Spread

1.5pp

kalshi at 60.0% vs polymarket at 58.5%

Expected Value

+2.56%

Per $1 staked at polymarket (1.71) if kalshi's price is fair.

Kelly Stake

3.6%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $60
24h Volume: $60
Liquidity: $13.0K
Open Interest: $108

Resolves: in 8d 8h

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

kalshi

updated just now

Volume: $1.2K
24h Volume: $1.2K
Liquidity: $0
Open Interest: $1.2K

Resolves: in 15d 8h

Settlement Timeline

polymarketin 8d 8h · Jun 8, 2026, 9:00 AM
kalshiin 15d 8h · Jun 15, 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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