TennisUPCOMING

Live· updated 22s ago

Tampere: Henri Squire vs Mika Petkovic

Other · July 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Henri Squire

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.68	59.5%	$0.60	---	Bet Here
KalshiBest	1.67	60.0%	$0.60	+0.5pp	Bet Here

PolymarketBest

$0.60

Odds

1.68

Implied

59.5%

Edge

---

Bet Here

KalshiBest

$0.60

Odds

1.67

Implied

60.0%

Edge

+0.5pp

Bet Here

All Outcomes

Henri Squire

Best: 60.0% on kalshi

▲+0.5%

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

59.5%

60.0%

Mika Petkovic

Best: 40.5% on polymarket

▲+0.5%

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

40.5%

40.0%

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.

Henri Squire

cheapest single venue: polymarket at 0.595

Retail tier ($5k/venue)

$10.0K@ 0.613 avg

+0.78% vs cheapest single venue

kalshi$5.0K @ 0.608

polymarket$5.0K @ 0.618

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

Sharp tier ($25k/venue)

$50.0K@ 0.629 avg

+0.61% vs cheapest single venue

kalshi$25.0K @ 0.625

polymarket

Arbitrage Opportunity

+0.50%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Henri Squire	polymarket	1.68	$598	$1005
Mika Petkovicthin	kalshi	2.50	$402	$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 — Henri Squire

Spread

0.5pp

kalshi at 60.0% vs polymarket at 59.5%

Expected Value

+0.84%

Per $1 staked at polymarket (1.68) if kalshi's price is fair.

Kelly Stake

1.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $3.8K
24h Volume: $3.8K
Liquidity: $74.5K
Open Interest: $3.7K

Resolves: in 7d 4h

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

kalshi

updated just now

Volume: $4.4K
24h Volume: $4.4K
Liquidity: $0
Open Interest: $4.4K

Resolves: in 14d 4h

Settlement Timeline

polymarketin 7d 4h · Jul 28, 2026, 11:00 AM
kalshiin 14d 4h · Aug 4, 2026, 10:20 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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