TennisUPCOMING

Live· updated 1m ago

Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Toby Samuel

Other · June 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Matteo Arnaldi

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.83	54.5%	$0.55	---	Bet Here
KalshiBest	1.80	55.5%	$0.55	+1.0pp	Bet Here

PolymarketBest

$0.55

Odds

1.83

Implied

54.5%

Edge

---

Bet Here

KalshiBest

$0.55

Odds

1.80

Implied

55.5%

Edge

+1.0pp

Bet Here

All Outcomes

Matteo Arnaldi

Best: 55.5% on kalshi

▲+1.0%

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

54.5%

55.5%

Toby Samuel

Best: 45.5% on polymarket

▲+1.5%

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

45.5%

44.0%

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.

Matteo Arnaldi

cheapest single venue: polymarket at 0.545

Retail tier ($5k/venue)

$10.0K@ 0.687 avg

+10.45% vs cheapest single venue

kalshi$5.0K @ 0.622

polymarket$5.0K @ 0.752

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

Sharp tier ($25k/venue)

$30.0K@ 0.721 avg

+0.86% vs cheapest single venue

kalshi$25.0K @ 0.715

polymarket

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Stake split for $1,000 bankroll

Matteo Arnaldi (polymarket, $553) — slippage 10.8% > 10% cap — fillable up to $5

Toby Samuel (kalshi, $447) — slippage 3.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
Matteo Arnaldithin	polymarket	1.83	$553	$1015
Toby Samuelthin	kalshi	2.27	$447	$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 — Matteo Arnaldi

Spread

1.0pp

kalshi at 55.5% vs polymarket at 54.5%

Expected Value

+1.83%

Per $1 staked at polymarket (1.83) if kalshi's price is fair.

Kelly Stake

2.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $15
24h Volume: $15
Liquidity: $10.2K
Open Interest: $15

Resolves: in 7d 15h

Source: https://www.atptour.com/en/scores/current

kalshi

updated just now

Volume: $119
24h Volume: $119
Liquidity: $0
Open Interest: $119

Resolves: in 14d 15h

Settlement Timeline

polymarketin 7d 15h · Jun 28, 2026, 10:00 AM
kalshiin 14d 15h · Jul 5, 2026, 10:00 AM

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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