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Stale· updated 2m ago

ITF Champaign: William Mroz vs Tristan Mccormick

Other · July 23, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — William Mroz Mroz

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.86	35.0%	$0.35	---	Bet Here
Polymarket	2.82	35.5%	$0.36	+0.5pp	Bet Here

KalshiBest

$0.35

Odds

2.86

Implied

35.0%

Edge

---

Bet Here

Polymarket

$0.36

Odds

2.82

Implied

35.5%

Edge

+0.5pp

Bet Here

All Outcomes

William Mroz Mroz

Best: 35.5% on polymarket

▲+0.5%

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

35.5%

35.0%

Tristan Mccormick

Best: 64.5% on polymarket

▲+5.5%

Prediction market is 5.5% cheaper than sportsbooks. Consider buying on PM.

64.5%

59.0%

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.

William Mroz Mroz

cheapest single venue: kalshi at 0.350

Retail tier ($5k/venue)

$6.0K@ 0.630 avg

+8.08% vs cheapest single venue

kalshi$5.0K @ 0.583

polymarket$1.0K @ 0.866

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

Sharp tier ($25k/venue)

$26.0K@ 0.820 avg

+0.22% vs cheapest single venue

kalshi$25.0K @ 0.818

polymarket

Arbitrage Opportunity

+6.38%theoretical onlyPAPER

Stake split for $1,000 bankroll

William Mroz Mroz (kalshi, $372) — slippage 5.4% — eats into edge

Tristan Mccormick (kalshi, $628) — slippage 4.6% — eats into edge

Outcome	Platform	Odds	Stake	To win
William Mroz Mrozthin	kalshi	2.86	$372	$1064
Tristan Mccormickthin	kalshi	1.70	$628	$1064

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 — William Mroz Mroz

Spread

0.5pp

polymarket at 35.5% vs kalshi at 35.0%

Expected Value

+1.43%

Per $1 staked at kalshi (2.86) if polymarket's price is fair.

Kelly Stake

0.8%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $754
Open Interest: —

Resolves: in 7d 4h

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

kalshi

updated just now

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

Resolves: in 14d 4h

Settlement Timeline

polymarketin 7d 4h · Jul 30, 2026, 5:00 PM
kalshiin 14d 4h · Aug 6, 2026, 5:00 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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