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ITF Rancho Santa Fe: Alyssa Ahn vs Isabella Foshee

Other · July 9, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Alyssa Ahn

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.08	92.5%	$0.93	---	Bet Here
Polymarket	1.06	94.0%	$0.94	+1.5pp	Bet Here

KalshiBest

$0.93

Odds

1.08

Implied

92.5%

Edge

---

Bet Here

Polymarket

$0.94

Odds

1.06

Implied

94.0%

Edge

+1.5pp

Bet Here

All Outcomes

Alyssa Ahn

Best: 94.0% on polymarket

▲+1.5%

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

94.0%

92.5%

Isabella Foshee

Best: 7.0% on kalshi

▲+1.0%

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

6.0%

7.0%

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.

Alyssa Ahn

cheapest single venue: kalshi at 0.925

Retail tier ($5k/venue)

$5.0K@ 0.942 avg

-0.00% vs cheapest single venue

kalshi$5.0K @ 0.942

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

Sharp tier ($25k/venue)

$25.0K@ 0.956 avg

-0.00% vs cheapest single venue

kalshi$25.0K @ 0.956

Algo-trader tier — combines order-book depth and per-book stake limits at $25k each.

Whale tier (max known capacity)

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Stake split for $1,000 bankroll

Isabella Foshee (polymarket, $61) — not enough depth at $61 — fillable up to $5

Outcome	Platform	Odds	Stake	To win
Alyssa Ahnthin	kalshi	1.08	$939	$1015
Isabella Fosheethin	polymarket	16.67	$61	$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 — Alyssa Ahn

Spread

1.5pp

polymarket at 94.0% vs kalshi at 92.5%

Expected Value

+1.62%

Per $1 staked at kalshi (1.08) if polymarket's price is fair.

Kelly Stake

20.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $125
24h Volume: $125
Liquidity: $242
Open Interest: $125

Resolves: in 7d 4h

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 4h

Settlement Timeline

polymarketin 7d 4h · Jul 16, 2026, 5:00 PM
kalshiin 14d 4h · Jul 23, 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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