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Live· updated 57s ago

Newport: Garrett Johns vs Patrick Maloney

Other · July 8, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Garrett Johns

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	4.35	23.0%	$0.23	---	Bet Here
Polymarket	3.92	25.5%	$0.26	+2.5pp	Bet Here

KalshiBest

$0.23

Odds

4.35

Implied

23.0%

Edge

---

Bet Here

Polymarket

$0.26

Odds

3.92

Implied

25.5%

Edge

+2.5pp

Bet Here

All Outcomes

Garrett Johns

Best: 25.5% on polymarket

▲+2.5%

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

25.5%

23.0%

Patrick Maloney

Best: 78.0% on kalshi

▲+3.5%

Prediction market is 3.5% cheaper than sportsbooks. Consider buying on PM.

74.5%

78.0%

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.

Garrett Johns

cheapest single venue: kalshi at 0.230

Retail tier ($5k/venue)

$10.0K@ 0.315 avg

+43.35% vs cheapest single venue

kalshi$5.0K @ 0.220

polymarket$5.0K @ 0.411

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

Sharp tier ($25k/venue)

$50.0K@ 0.455 avg

+79.75% vs cheapest single venue

kalshi$25.0K @ 0.253

polymarket

Arbitrage Opportunity

+2.56%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Garrett Johnsthin	kalshi	4.35	$236	$1026
Patrick Maloney	polymarket	1.34	$764	$1025

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 — Garrett Johns

Spread

2.5pp

polymarket at 25.5% vs kalshi at 23.0%

Expected Value

+10.87%

Per $1 staked at kalshi (4.35) if polymarket's price is fair.

Kelly Stake

3.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $5.0K
24h Volume: $5.0K
Liquidity: $26.5K
Open Interest: $1.5K

Resolves: in 6d 22h

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

kalshi

updated just now

Volume: $230.3K
24h Volume: $214.5K
Liquidity: $0
Open Interest: $167.1K

Resolves: in 13d 20h

Settlement Timeline

polymarketin 6d 22h · Jul 15, 2026, 10:05 PM
kalshiin 13d 20h · Jul 22, 2026, 7:50 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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