TennisUPCOMING

Stale· updated 2m ago

ITF Huamantla: Preston Brown vs Matthew Thomson

Other · July 25, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000000000000

Platform Prices — Preston Brown

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.44	41.0%	$0.41	---	Bet Here
Polymarket	2.41	41.5%	$0.42	+0.5pp	Bet Here

KalshiBest

$0.41

Odds

2.44

Implied

41.0%

Edge

---

Bet Here

Polymarket

$0.42

Odds

2.41

Implied

41.5%

Edge

+0.5pp

Bet Here

All Outcomes

Preston Brown

Best: 41.5% on polymarket

▲+0.5%

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

41.5%

41.0%

Matthew Thomson

Best: 59.5% on kalshi

▲+1.0%

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

58.5%

59.5%

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.

Preston Brown

cheapest single venue: kalshi at 0.410

Retail tier ($5k/venue)

$6.0K@ 0.468 avg

+5.09% vs cheapest single venue

polymarket$1.0K @ 0.445

kalshi$5.0K @ 0.473

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

Sharp tier ($25k/venue)

$26.0K@ 0.636 avg

+42.83% vs cheapest single venue

polymarket$1.0K @ 0.445

kalshi

Arbitrage Opportunity

+0.50%theoretical onlyPAPER

Fillable up to $591

Preston Brown (kalshi, $412) — slippage 3.8% — eats into edge

Matthew Thomson (polymarket, $588) — slippage 2.2% — eats into edge

Outcome	Platform	Odds	Stake	To win
Preston Brownthin	kalshi	2.44	$412	$1005
Matthew Thomsonthin	polymarket	1.71	$588	$1005

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 — Preston Brown

Spread

0.5pp

polymarket at 41.5% vs kalshi at 41.0%

Expected Value

+1.22%

Per $1 staked at kalshi (2.44) if polymarket's price is fair.

Kelly Stake

0.8%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $150
24h Volume: $150
Liquidity: $4.5K
Open Interest: —

Resolves: in 7d 5h

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

kalshi

updated just now

Volume: $23
24h Volume: $23
Liquidity: $0
Open Interest: $23

Resolves: in 14d 5h

Settlement Timeline

polymarketin 7d 5h · Aug 1, 2026, 5:00 PM
kalshiin 14d 5h · Aug 8, 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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