TennisUPCOMING

Stale· updated 3m ago

Bloomfield Hills: Alex Michelsen vs Mark Lajal

Other · July 24, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00

Platform Prices — Alex Michelsen

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.40	71.5%	$0.72	---	Bet Here
Polymarket	1.37	73.0%	$0.73	+1.5pp	Bet Here

KalshiBest

$0.72

Odds

1.40

Implied

71.5%

Edge

---

Bet Here

Polymarket

$0.73

Odds

1.37

Implied

73.0%

Edge

+1.5pp

Bet Here

All Outcomes

Alex Michelsen

Best: 73.0% on polymarket

▲+1.5%

Prediction market is 1.5% cheaper than sportsbooks. Consider buying on PM.

73.0%

71.5%

Mark Lajal

Best: 28.5% on kalshi

▲+1.5%

Prediction market is 1.5% cheaper than sportsbooks. Consider buying on PM.

27.0%

28.5%

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.

Alex Michelsen

cheapest single venue: kalshi at 0.715

Retail tier ($5k/venue)

$10.0K@ 0.736 avg

+0.83% vs cheapest single venue

kalshi$5.0K @ 0.730

polymarket$5.0K @ 0.742

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

Sharp tier ($25k/venue)

$50.0K@ 0.745 avg

+1.12% vs cheapest single venue

kalshi$25.0K @ 0.737

polymarket

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Stake split for $1,000 bankroll

Mark Lajal (polymarket, $274) — slippage 9.8% — eats into edge

Outcome	Platform	Odds	Stake	To win
Alex Michelsenthin	kalshi	1.40	$726	$1016
Mark Lajalthin	polymarket	3.70	$274	$1015

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 — Alex Michelsen

Spread

1.5pp

polymarket at 73.0% vs kalshi at 71.5%

Expected Value

+2.10%

Per $1 staked at kalshi (1.40) if polymarket'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: $6.6K
Open Interest: —

Resolves: in 7d 12h

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

kalshi

updated just now

Volume: $5
24h Volume: $5
Liquidity: $0
Open Interest: $5

Resolves: in 14d 11h

Settlement Timeline

polymarketin 7d 12h · Jul 31, 2026, 7:30 PM
kalshiin 14d 11h · Aug 7, 2026, 6:30 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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