TennisUPCOMING

Live· updated 1m ago

Generali Open, Qualification: Sandro Kopp vs Pierre-Hugues Herbert

Other · July 18, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Sandro Kopp

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.80	55.5%	$0.56	---	Bet Here
KalshiBest	1.79	56.0%	$0.56	+0.5pp	Bet Here

PolymarketBest

$0.56

Odds

1.80

Implied

55.5%

Edge

---

Bet Here

KalshiBest

$0.56

Odds

1.79

Implied

56.0%

Edge

+0.5pp

Bet Here

All Outcomes

Sandro Kopp

Best: 56.0% on kalshi

▲+0.5%

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

55.5%

56.0%

Pierre-Hugues Herbert

Best: 44.5% on polymarket

▲+0.5%

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

44.5%

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.

Sandro Kopp

cheapest single venue: polymarket at 0.555

Retail tier ($5k/venue)

$10.0K@ 0.569 avg

+0.50% vs cheapest single venue

kalshi$5.0K @ 0.566

polymarket$5.0K @ 0.571

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

Sharp tier ($25k/venue)

$30.0K@ 0.580 avg

+1.51% vs cheapest single venue

polymarket$5.0K @ 0.571

kalshi

Arbitrage Opportunity

+0.50%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Sandro Koppthin	polymarket	1.80	$558	$1005
Pierre-Hugues Herbertthin	kalshi	2.27	$442	$1005

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 — Sandro Kopp

Spread

0.5pp

kalshi at 56.0% vs polymarket at 55.5%

Expected Value

+0.90%

Per $1 staked at polymarket (1.80) if kalshi's price is fair.

Kelly Stake

1.1%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $25
24h Volume: $25
Liquidity: $8.8K
Open Interest: $25

Resolves: in 7d 8h

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

kalshi

updated just now

Volume: $1.8K
24h Volume: $1.8K
Liquidity: $0
Open Interest: $1.8K

Resolves: in 14d 7h

Settlement Timeline

polymarketin 7d 8h · Jul 25, 2026, 2:00 PM
kalshiin 14d 7h · Aug 1, 2026, 1:10 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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