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Stale· updated 2m ago

ITF Champaign: Karim Bennani vs William Jansen

Other · July 24, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Karim Bennani

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.60	62.5%	$0.63	---	Bet Here
Kalshi	1.55	64.5%	$0.65	+2.0pp	Bet Here

PolymarketBest

$0.63

Odds

1.60

Implied

62.5%

Edge

---

Bet Here

Kalshi

$0.65

Odds

1.55

Implied

64.5%

Edge

+2.0pp

Bet Here

All Outcomes

Karim Bennani

Best: 64.5% on kalshi

▲+2.0%

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

62.5%

64.5%

William Jansen

Best: 37.5% on polymarket

▲+2.5%

Prediction market is 2.5% cheaper than sportsbooks. Consider buying on PM.

37.5%

35.0%

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.

Karim Bennani

cheapest single venue: polymarket at 0.625

Retail tier ($5k/venue)

$10.0K@ 0.689 avg

+2.82% vs cheapest single venue

kalshi$5.0K @ 0.670

polymarket$5.0K @ 0.707

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

Sharp tier ($25k/venue)

$30.0K@ 0.729 avg

+3.00% vs cheapest single venue

polymarket$5.0K @ 0.707

kalshi

Arbitrage Opportunity

+2.56%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Karim Bennanithin	polymarket	1.60	$641	$1026
William Jansenthin	kalshi	2.86	$359	$1026

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 — Karim Bennani

Spread

2.0pp

kalshi at 64.5% vs polymarket at 62.5%

Expected Value

+3.20%

Per $1 staked at polymarket (1.60) if kalshi's price is fair.

Kelly Stake

5.3%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $4.2K
Open Interest: —

Resolves: in 7d 3h

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

kalshi

updated just now

Volume: $91
24h Volume: $91
Liquidity: $0
Open Interest: $91

Resolves: in 14d 3h

Settlement Timeline

polymarketin 7d 3h · Jul 31, 2026, 4:00 PM
kalshiin 14d 3h · Aug 7, 2026, 4:00 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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