TennisUPCOMING

Stale· updated 5m ago

ITF Monastir: Toufik Sahtali vs Charles Bertimon

Other · July 18, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.0

Platform Prices — Toufik Sahtali

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.45	69.0%	$0.69	---	Bet Here
Polymarket	1.43	70.0%	$0.70	+1.0pp	Bet Here

KalshiBest

$0.69

Odds

1.45

Implied

69.0%

Edge

---

Bet Here

Polymarket

$0.70

Odds

1.43

Implied

70.0%

Edge

+1.0pp

Bet Here

All Outcomes

Toufik Sahtali

Best: 70.0% on polymarket

▲+1.0%

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

70.0%

69.0%

Charles Bertimon

Best: 30.5% on kalshi

▲+0.5%

Prediction market is 0.5% cheaper than sportsbooks. Consider buying on PM.

30.0%

30.5%

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.

Toufik Sahtali

cheapest single venue: kalshi at 0.690

Retail tier ($5k/venue)

$6.0K@ 0.719 avg

+0.50% vs cheapest single venue

polymarket$1.0K @ 0.716

kalshi$5.0K @ 0.720

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

Sharp tier ($25k/venue)

$26.0K@ 0.800 avg

+11.72% vs cheapest single venue

polymarket$1.0K @ 0.716

kalshi

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Stake split for $1,000 bankroll

Charles Bertimon (polymarket, $303) — not enough depth at $303 — fillable up to $686

Outcome	Platform	Odds	Stake	To win
Toufik Sahtalithin	kalshi	1.45	$697	$1010
Charles Bertimonthin	polymarket	3.33	$303	$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 — Toufik Sahtali

Spread

1.0pp

polymarket at 70.0% vs kalshi at 69.0%

Expected Value

+1.45%

Per $1 staked at kalshi (1.45) if polymarket's price is fair.

Kelly Stake

3.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $3.2K
Open Interest: —

Resolves: in 7d 7h

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

kalshi

updated just now

Volume: $28
24h Volume: $28
Liquidity: $0
Open Interest: $28

Resolves: in 14d 7h

Settlement Timeline

polymarketin 7d 7h · Jul 25, 2026, 8:00 AM
kalshiin 14d 7h · Aug 1, 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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