TennisUPCOMING

Stale· updated 2m ago

Mubadala Citi DC Open: Frances Tiafoe vs Terence Atmane

Other · July 27, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Frances Tiafoe

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.44	69.5%	$0.70	---	Bet Here
KalshiBest	1.43	70.0%	$0.70	+0.5pp	Bet Here

PolymarketBest

$0.70

Odds

1.44

Implied

69.5%

Edge

---

Bet Here

KalshiBest

$0.70

Odds

1.43

Implied

70.0%

Edge

+0.5pp

Bet Here

All Outcomes

Frances Tiafoe

Best: 70.0% on kalshi

▲+0.5%

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

69.5%

70.0%

Terence Atmane

Best: 30.5% on polymarket

▲+0.5%

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

30.5%

30.0%

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.

Frances Tiafoe

cheapest single venue: polymarket at 0.695

Retail tier ($5k/venue)

$10.0K@ 0.708 avg

+1.18% vs cheapest single venue

kalshi$5.0K @ 0.700

polymarket$5.0K @ 0.716

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

Sharp tier ($25k/venue)

$30.0K@ 0.708 avg

+0.24% vs cheapest single venue

kalshi$25.0K @ 0.706

polymarket

Arbitrage Opportunity

+0.50%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Frances Tiafoe	polymarket	1.44	$699	$1005
Terence Atmanethin	kalshi	3.33	$302	$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 — Frances Tiafoe

Spread

0.5pp

kalshi at 70.0% vs polymarket at 69.5%

Expected Value

+0.72%

Per $1 staked at polymarket (1.44) if kalshi's price is fair.

Kelly Stake

1.6%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $2.8K
24h Volume: $2.8K
Liquidity: $76.0K
Open Interest: $647

Resolves: in 7d 18h

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

kalshi

updated just now

Volume: $1.3K
24h Volume: $1.3K
Liquidity: $0
Open Interest: $1.2K

Resolves: in 14d 18h

Settlement Timeline

polymarketin 7d 18h · Aug 3, 2026, 2:00 PM
kalshiin 14d 18h · Aug 10, 2026, 2:00 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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