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Stale· updated 2m ago

ITF Rancho Santa Fe: Tatum Evans vs Carmen Andreea Herea

Other · July 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Tatum Evans

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.25	44.5%	$0.44	---	Bet Here
Polymarket	2.00	50.0%	$0.50	+5.5pp	Bet Here

KalshiBest

$0.44

Odds

2.25

Implied

44.5%

Edge

---

Bet Here

Polymarket

$0.50

Odds

2.00

Implied

50.0%

Edge

+5.5pp

Bet Here

All Outcomes

Tatum Evans

Best: 50.0% on polymarket

▲+5.5%

Prediction market is 5.5% cheaper than sportsbooks. Consider buying on PM.

50.0%

44.5%

Carmen Andreea Herea

Best: 50.0% on polymarket

▲+1.5%

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

50.0%

48.5%

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.

Tatum Evans

cheapest single venue: kalshi at 0.445

Retail tier ($5k/venue)

$6.0K@ 0.846 avg

+52.00% vs cheapest single venue

polymarket$1.0K @ 0.557

kalshi$5.0K @ 0.904

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

Sharp tier ($25k/venue)

$26.0K@ 0.903 avg

+62.19% vs cheapest single venue

polymarket$1.0K @ 0.557

kalshi

Arbitrage Opportunity

+7.53%theoretical onlyPAPER

Fillable up to $154

Tatum Evans (kalshi, $479) — slippage 50.4% > 10% cap — fillable up to $73

Outcome	Platform	Odds	Stake	To win
Tatum Evansthin	kalshi	2.25	$479	$1075
Carmen Andreea Hereathin	kalshi	2.06	$522	$1075

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 — Tatum Evans

Spread

5.5pp

polymarket at 50.0% vs kalshi at 44.5%

Expected Value

+12.36%

Per $1 staked at kalshi (2.25) if polymarket's price is fair.

Kelly Stake

9.9%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $4.0K
Open Interest: —

Resolves: in 7d 5h

Source: https://www.itftennis.com/en/tournament-calendar/

kalshi

updated just now

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

Resolves: in 14d 3h

Settlement Timeline

polymarketin 7d 5h · Jul 28, 2026, 6:15 PM
kalshiin 14d 3h · Aug 4, 2026, 5:00 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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