TennisUPCOMING

Live· updated 35s ago

Mallorca Championships, Qualification: Adam Walton vs Antoine Ghibaudo

Other · June 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Adam Walton

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.35	74.0%	$0.74	---	Bet Here
Polymarket	1.34	74.5%	$0.75	+0.5pp	Bet Here

KalshiBest

$0.74

Odds

1.35

Implied

74.0%

Edge

---

Bet Here

Polymarket

$0.75

Odds

1.34

Implied

74.5%

Edge

+0.5pp

Bet Here

All Outcomes

Adam Walton

Best: 74.5% on polymarket

▲+0.5%

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

74.5%

74.0%

Antoine Ghibaudo

Best: 25.5% on kalshi

▼0.0%

Prices are roughly equal across platforms.

25.5%

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.

Adam Walton

cheapest single venue: kalshi at 0.740

Retail tier ($5k/venue)

$6.0K@ 0.749 avg

+0.14% vs cheapest single venue

kalshi$5.0K @ 0.748

polymarket$1.0K @ 0.755

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

Sharp tier ($25k/venue)

$26.0K@ 0.756 avg

+0.13% vs cheapest single venue

polymarket$1.0K @ 0.755

kalshi

Arbitrage Opportunity

+0.50%theoretical onlyPAPER

Stake split for $1,000 bankroll

Antoine Ghibaudo (polymarket, $256) — slippage 64.0% > 10% cap — fillable up to $4

Outcome	Platform	Odds	Stake	To win
Adam Waltonthin	kalshi	1.35	$744	$1005
Antoine Ghibaudo	polymarket	3.92	$256	$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 — Adam Walton

Spread

0.5pp

polymarket at 74.5% vs kalshi at 74.0%

Expected Value

+0.68%

Per $1 staked at kalshi (1.35) if polymarket's price is fair.

Kelly Stake

1.9%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $1.1K
24h Volume: $1.1K
Liquidity: $11.5K
Open Interest: $1.4K

Resolves: in 7d 15h

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

kalshi

updated just now

Volume: $3.2K
24h Volume: $3.2K
Liquidity: $0
Open Interest: $2.8K

Resolves: in 14d 14h

Settlement Timeline

polymarketin 7d 15h · Jun 28, 2026, 10:00 AM
kalshiin 14d 14h · Jul 5, 2026, 9:00 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

Related Events

Tennis

▲+19.5%

Lexus Eastbourne Open, Qualification: Kamilla Rakhimova vs Oksana Selekhmeteva

Vol: $543K

Tennis

▲+17.5%

Lexus Eastbourne Open, Qualification: Jan Choinski vs Yibing Wu

Vol: $382K

Tennis

▲+17.0%

ITF Tulsa: Gavin Young vs Andrew Fenty

Vol: $521K

Tennis

▲+8.5%

Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom

18+ only. Gambling involves risk. Please gamble responsibly. If you or someone you know has a gambling problem, call 1-800-522-4700. OddsBridge does not accept bets -- we provide odds comparison and informational content only. Past performance does not guarantee future results. Odds and prices shown may not reflect the most current values. Always verify prices on the platform before placing a bet or trade.