TennisUPCOMING

Stale· updated 4m ago

Mubadala Citi DC Open: Anastasia Potapova vs Venus Williams

Other · July 27, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Anastasia Potapova

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.23	81.5%	$0.82	---	Bet Here
Kalshi	1.20	83.0%	$0.83	+1.5pp	Bet Here

PolymarketBest

$0.82

Odds

1.23

Implied

81.5%

Edge

---

Bet Here

Kalshi

$0.83

Odds

1.20

Implied

83.0%

Edge

+1.5pp

Bet Here

All Outcomes

Anastasia Potapova

Best: 83.0% on kalshi

▲+1.5%

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

81.5%

83.0%

Venus Williams

Best: 18.5% on polymarket

▲+2.5%

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

18.5%

16.0%

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.

Anastasia Potapova

cheapest single venue: polymarket at 0.815

Retail tier ($5k/venue)

$10.0K@ 0.838 avg

+0.22% vs cheapest single venue

polymarket$5.0K @ 0.836

kalshi$5.0K @ 0.840

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

Sharp tier ($25k/venue)

$50.0K@ 0.857 avg

+0.40% vs cheapest single venue

polymarket$25.0K @ 0.853

Arbitrage Opportunity

+2.56%theoretical onlyPAPER

Stake split for $1,000 bankroll

Venus Williams (kalshi, $164) — slippage 3.6% — eats into edge

Outcome	Platform	Odds	Stake	To win
Anastasia Potapova	polymarket	1.23	$836	$1026
Venus Williamsthin	kalshi	6.25	$164	$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 — Anastasia Potapova

Spread

1.5pp

kalshi at 83.0% vs polymarket at 81.5%

Expected Value

+1.84%

Per $1 staked at polymarket (1.23) if kalshi's price is fair.

Kelly Stake

8.1%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $1.2K
24h Volume: $1.2K
Liquidity: $51.7K
Open Interest: $794

Resolves: in 7d 20h

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

kalshi

updated just now

Volume: $224
24h Volume: $208
Liquidity: $0
Open Interest: $201

Resolves: in 14d 20h

Settlement Timeline

polymarketin 7d 20h · Aug 3, 2026, 2:00 PM
kalshiin 14d 20h · Aug 10, 2026, 2:00 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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