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Stale· updated 2m ago

Winnipeg: James McCabe vs Duncan Chan

Other · July 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.0000000000000

Platform Prices — James McCabe

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.60	62.5%	$0.63	---	Bet Here
Kalshi	1.56	64.0%	$0.64	+1.5pp	Bet Here

PolymarketBest

$0.63

Odds

1.60

Implied

62.5%

Edge

---

Bet Here

Kalshi

$0.64

Odds

1.56

Implied

64.0%

Edge

+1.5pp

Bet Here

All Outcomes

James McCabe

Best: 64.0% on kalshi

▲+1.5%

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

62.5%

64.0%

Duncan Chan

Best: 37.5% on polymarket

▲+1.0%

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

37.5%

36.5%

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.

James McCabe

cheapest single venue: polymarket at 0.625

Retail tier ($5k/venue)

$10.0K@ 0.649 avg

+0.77% vs cheapest single venue

kalshi$5.0K @ 0.644

polymarket$5.0K @ 0.654

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

Sharp tier ($25k/venue)

$50.0K@ 0.668 avg

+2.56% vs cheapest single venue

kalshi$25.0K @ 0.651

polymarket

Arbitrage Opportunity

+1.01%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
James McCabethin	polymarket	1.60	$631	$1010
Duncan Chanthin	kalshi	2.74	$369	$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 — James McCabe

Spread

1.5pp

kalshi at 64.0% vs polymarket at 62.5%

Expected Value

+2.40%

Per $1 staked at polymarket (1.60) if kalshi's price is fair.

Kelly Stake

4.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $481
24h Volume: $481
Liquidity: $54.4K
Open Interest: $467

Resolves: in 7d 8h

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

kalshi

updated just now

Volume: $385
24h Volume: $385
Liquidity: $0
Open Interest: $385

Resolves: in 14d 8h

Settlement Timeline

polymarketin 7d 8h · Jul 28, 2026, 10:00 PM
kalshiin 14d 8h · Aug 4, 2026, 9:10 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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