TennisUPCOMING

Live· updated 1m ago

Geneva Open, Qualification: James Duckworth vs Miguel Damas

Other · May 16, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000000000000

Platform Prices — James Duckworth

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.71	58.5%	$0.59	---	Bet Here
KalshiBest	1.69	59.0%	$0.59	+0.5pp	Bet Here

PolymarketBest

$0.59

Odds

1.71

Implied

58.5%

Edge

---

Bet Here

KalshiBest

$0.59

Odds

1.69

Implied

59.0%

Edge

+0.5pp

Bet Here

All Outcomes

James Duckworth

Best: 59.0% on kalshi

▲+0.5%

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

58.5%

59.0%

Miguel Damas

Best: 41.5% on polymarket

▲+0.5%

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

41.5%

41.0%

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.

James Duckworth

cheapest single venue: polymarket at 0.585

Retail tier ($5k/venue)

$10.0K@ 0.625 avg

+1.76% vs cheapest single venue

kalshi$5.0K @ 0.615

polymarket$5.0K @ 0.636

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

Sharp tier ($25k/venue)

$50.0K@ 0.648 avg

+1.82% vs cheapest single venue

polymarket$25.0K @ 0.636

kalshi

Arbitrage Opportunity

+0.50%theoretical onlyPAPER

Stake split for $1,000 bankroll

James Duckworth (polymarket, $588) — slippage 2.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
James Duckworththin	polymarket	1.71	$588	$1005
Miguel Damasthin	kalshi	2.44	$412	$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 — James Duckworth

Spread

0.5pp

kalshi at 59.0% vs polymarket at 58.5%

Expected Value

+0.85%

Per $1 staked at polymarket (1.71) if kalshi's price is fair.

Kelly Stake

1.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $92
24h Volume: $92
Liquidity: $4.0K
Open Interest: $22

Resolves: in 7d 7h

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

kalshi

updated just now

Volume: $309
24h Volume: $309
Liquidity: $0
Open Interest: $301

Resolves: in 14d 6h

Settlement Timeline

polymarketin 7d 7h · May 23, 2026, 9:00 AM
kalshiin 14d 6h · May 30, 2026, 8:00 AM

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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