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Stale· updated 2m ago

ITF Champaign: Mitchell Sheldon vs William Mroz

Other · July 24, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00

Platform Prices — Mitchell Sheldon

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	3.17	31.5%	$0.32	---	Bet Here
Polymarket	3.08	32.5%	$0.33	+1.0pp	Bet Here

KalshiBest

$0.32

Odds

3.17

Implied

31.5%

Edge

---

Bet Here

Polymarket

$0.33

Odds

3.08

Implied

32.5%

Edge

+1.0pp

Bet Here

All Outcomes

Mitchell Sheldon

Best: 32.5% on polymarket

▲+1.0%

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

32.5%

31.5%

William Mroz Mroz

Best: 70.0% on kalshi

▲+2.5%

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

67.5%

70.0%

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.

Mitchell Sheldon

cheapest single venue: kalshi at 0.315

Retail tier ($5k/venue)

$6.0K@ 0.359 avg

+3.13% vs cheapest single venue

polymarket$1.0K @ 0.349

kalshi$5.0K @ 0.362

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

Sharp tier ($25k/venue)

$26.0K@ 0.578 avg

+65.70% vs cheapest single venue

polymarket$1.0K @ 0.349

kalshi

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Fillable up to $717

Mitchell Sheldon (kalshi, $318) — slippage 5.5% — eats into edge

William Mroz Mroz (polymarket, $682) — slippage 2.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
Mitchell Sheldonthin	kalshi	3.17	$318	$1010
William Mroz Mrozthin	polymarket	1.48	$682	$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 — Mitchell Sheldon

Spread

1.0pp

polymarket at 32.5% vs kalshi at 31.5%

Expected Value

+3.17%

Per $1 staked at kalshi (3.17) if polymarket's price is fair.

Kelly Stake

1.5%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $4.8K
Open Interest: —

Resolves: in 7d 2h

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

kalshi

updated just now

Volume: $148
24h Volume: $148
Liquidity: $0
Open Interest: $148

Resolves: in 14d 2h

Settlement Timeline

polymarketin 7d 2h · Jul 31, 2026, 3:00 PM
kalshiin 14d 2h · Aug 7, 2026, 3:00 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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