TennisLIVE

Live· updated 18s ago

ITF Porto: Mert Alkaya vs Robin Catry

Other · June 23, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Mert Alkaya

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.40	71.5%	$0.72	---	Bet Here
Polymarket	1.38	72.5%	$0.73	+1.0pp	Bet Here

KalshiBest

$0.72

Odds

1.40

Implied

71.5%

Edge

---

Bet Here

Polymarket

$0.73

Odds

1.38

Implied

72.5%

Edge

+1.0pp

Bet Here

All Outcomes

Mert Alkaya

Best: 72.5% on polymarket

▲+1.0%

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

72.5%

71.5%

Robin Catry

Best: 27.5% on kalshi

▼0.0%

Prices are roughly equal across platforms.

27.5%

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.

Mert Alkaya

cheapest single venue: kalshi at 0.715

Retail tier ($5k/venue)

$5.0K@ 0.860 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.860

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

Sharp tier ($25k/venue)

$25.0K@ 0.925 avg

+0.00% vs cheapest single venue

kalshi$25.0K @ 0.925

Algo-trader tier — combines order-book depth and per-book stake limits at $25k each.

Whale tier (max known capacity)

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Fillable up to $267

Mert Alkaya (kalshi, $722) — slippage 9.8% — eats into edge

Robin Catry (polymarket, $278) — order-book depth unknown — assumed unfillable

Outcome	Platform	Odds	Stake	To win
Mert Alkayathin	kalshi	1.40	$722	$1010
Robin Catrythin	polymarket	3.64	$278	$1010

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 — Mert Alkaya

Spread

1.0pp

polymarket at 72.5% vs kalshi at 71.5%

Expected Value

+1.40%

Per $1 staked at kalshi (1.40) if polymarket's price is fair.

Kelly Stake

3.5%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $122
Open Interest: —

Resolves: in 6d 23h

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

kalshi

updated just now

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

Resolves: in 13d 23h

Settlement Timeline

polymarketin 6d 23h · Jun 30, 2026, 11:30 AM
kalshiin 13d 23h · Jul 7, 2026, 11:30 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

▲+42.5%

Piracicaba: Lucas Da Silva vs Conner Huertas Del Pino

Vol: $113.846152

Tennis

▲+41.0%

ITF Bergamo: Hugo Car vs Denis Constantin Spiridon

Vol: $1K

Tennis

▲+34.5%

ITF Tarvisio: Virginia Proietti vs Federica Trevisan

Vol: $892.159753

Tennis

▲+21.5%

ITF Kayseri: Ayline Samardzic vs Julia Khramtsova

Vol: $445K

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.