TennisUPCOMING

Stale· updated 2m ago

ITF Ollersbach: Ioannis Xilas vs Filip Jeff Planinsek

Other · July 23, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Ioannis Xilas

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.83	54.5%	$0.55	---	Bet Here
Kalshi	1.72	58.0%	$0.58	+3.5pp	Bet Here

PolymarketBest

$0.55

Odds

1.83

Implied

54.5%

Edge

---

Bet Here

Kalshi

$0.58

Odds

1.72

Implied

58.0%

Edge

+3.5pp

Bet Here

All Outcomes

Ioannis Xilas

Best: 58.0% on kalshi

▲+3.5%

Prediction market is 3.5% cheaper than sportsbooks. Consider buying on PM.

54.5%

58.0%

Filip Jeff Planinsek

Best: 45.5% on polymarket

▲+1.0%

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

45.5%

44.5%

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.

Ioannis Xilas

cheapest single venue: polymarket at 0.545

Retail tier ($5k/venue)

$10.0K@ 0.594 avg

+2.11% vs cheapest single venue

kalshi$5.0K @ 0.582

polymarket$5.0K @ 0.607

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

Sharp tier ($25k/venue)

$30.0K@ 0.738 avg

+21.58% vs cheapest single venue

polymarket$5.0K @ 0.607

kalshi

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Fillable up to $558

Ioannis Xilas (polymarket, $551) — slippage 3.0% — eats into edge

Filip Jeff Planinsek (kalshi, $450) — slippage 3.1% — eats into edge

Outcome	Platform	Odds	Stake	To win
Ioannis Xilasthin	polymarket	1.83	$551	$1010
Filip Jeff Planinsekthin	kalshi	2.25	$450	$1010

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 — Ioannis Xilas

Spread

3.5pp

kalshi at 58.0% vs polymarket at 54.5%

Expected Value

+6.42%

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

Kelly Stake

7.7%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $4
24h Volume: $4
Liquidity: $8.8K
Open Interest: —

Resolves: in 7d 9h

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 9h

Settlement Timeline

polymarketin 7d 9h · Jul 30, 2026, 8:00 AM
kalshiin 14d 9h · Aug 6, 2026, 8:00 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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