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ITF Rome: Ariana Arseneault vs Elizabeth Ionescu

Other · June 25, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000000000000

Platform Prices — Ariana Arseneault

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.42	70.5%	$0.71	---	Bet Here
Kalshi	1.39	72.0%	$0.72	+1.5pp	Bet Here

PolymarketBest

$0.71

Odds

1.42

Implied

70.5%

Edge

---

Bet Here

Kalshi

$0.72

Odds

1.39

Implied

72.0%

Edge

+1.5pp

Bet Here

All Outcomes

Ariana Arseneault

Best: 72.0% on kalshi

▲+1.5%

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

70.5%

72.0%

Elizabeth Ionescu

Best: 29.5% on polymarket

▲+2.0%

Prediction market is 2.0% cheaper than sportsbooks. Consider buying on PM.

29.5%

27.5%

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.

Ariana Arseneault

cheapest single venue: polymarket at 0.705

Retail tier ($5k/venue)

$6.0K@ 0.750 avg

+2.50% vs cheapest single venue

polymarket$1.0K @ 0.732

kalshi$5.0K @ 0.754

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

Sharp tier ($25k/venue)

$26.0K@ 0.810 avg

+10.72% vs cheapest single venue

polymarket$1.0K @ 0.732

kalshi

Arbitrage Opportunity

+2.04%theoretical onlyPAPER

Stake split for $1,000 bankroll

Elizabeth Ionescu (kalshi, $281) — slippage 12.9% > 10% cap — fillable up to $9

Outcome	Platform	Odds	Stake	To win
Ariana Arseneaultthin	polymarket	1.42	$719	$1020
Elizabeth Ionescuthin	kalshi	3.64	$281	$1020

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 — Ariana Arseneault

Spread

1.5pp

kalshi at 72.0% vs polymarket at 70.5%

Expected Value

+2.13%

Per $1 staked at polymarket (1.42) if kalshi's price is fair.

Kelly Stake

5.1%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $75
24h Volume: $75
Liquidity: $3.6K
Open Interest: $75

Resolves: in 7d 0h

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 0h

Settlement Timeline

polymarketin 7d 0h · Jul 2, 2026, 1:00 PM
kalshiin 14d 0h · Jul 9, 2026, 1:00 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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