TennisUPCOMING

Stale· updated 4m ago

Rome: Sofya Lansere vs Elena Malygina

Other · July 13, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000

Platform Prices — Sofya Lansere

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.87	53.5%	$0.54	---	Bet Here
Polymarket	1.83	54.5%	$0.55	+1.0pp	Bet Here

KalshiBest

$0.54

Odds

1.87

Implied

53.5%

Edge

---

Bet Here

Polymarket

$0.55

Odds

1.83

Implied

54.5%

Edge

+1.0pp

Bet Here

All Outcomes

Sofya Lansere

Best: 54.5% on polymarket

▲+1.0%

Prediction market is 1.0% cheaper than sportsbooks. Consider buying on PM.

54.5%

53.5%

Elena Malygina

Best: 45.5% on polymarket

▲+0.5%

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

45.5%

45.0%

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.

Sofya Lansere

cheapest single venue: kalshi at 0.535

Retail tier ($5k/venue)

$10.0K@ 0.578 avg

+1.43% vs cheapest single venue

polymarket$5.0K @ 0.570

kalshi$5.0K @ 0.586

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

Sharp tier ($25k/venue)

$30.0K@ 0.714 avg

+25.41% vs cheapest single venue

polymarket$5.0K @ 0.570

kalshi

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Fillable up to $117

Sofya Lansere (kalshi, $543) — slippage 3.1% — eats into edge

Elena Malygina (kalshi, $457) — slippage 5.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
Sofya Lanserethin	kalshi	1.87	$543	$1015
Elena Malyginathin	kalshi	2.22	$457	$1015

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 — Sofya Lansere

Spread

1.0pp

polymarket at 54.5% vs kalshi at 53.5%

Expected Value

+1.87%

Per $1 staked at kalshi (1.87) if polymarket's price is fair.

Kelly Stake

2.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $6
24h Volume: $6
Liquidity: $19.1K
Open Interest: —

Resolves: in 7d 10h

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

kalshi

updated just now

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

Resolves: in 14d 9h

Settlement Timeline

polymarketin 7d 10h · Jul 20, 2026, 5:00 PM
kalshiin 14d 9h · Jul 27, 2026, 4:30 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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