TennisUPCOMING

Live· updated 49s ago

ITF Don Benito: Valentina Ryser vs Celia Cervino Ruiz

Other · July 9, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000

Platform Prices — Valentina Ryser

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.41	71.0%	$0.71	---	Bet Here
Kalshi	1.38	72.5%	$0.73	+1.5pp	Bet Here

PolymarketBest

$0.71

Odds

1.41

Implied

71.0%

Edge

---

Bet Here

Kalshi

$0.73

Odds

1.38

Implied

72.5%

Edge

+1.5pp

Bet Here

All Outcomes

Valentina Ryser

Best: 72.5% on kalshi

▲+1.5%

Prediction market is 1.5% cheaper than sportsbooks. Consider buying on PM.

71.0%

72.5%

Celia Cervino Ruiz

Best: 29.0% on polymarket

▲+2.0%

Prediction market is 2.0% cheaper than sportsbooks. Consider buying on PM.

29.0%

27.0%

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.

Valentina Ryser

cheapest single venue: polymarket at 0.710

Retail tier ($5k/venue)

$6.0K@ 0.749 avg

+0.18% vs cheapest single venue

kalshi$5.0K @ 0.748

polymarket$1.0K @ 0.756

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

Sharp tier ($25k/venue)

$26.0K@ 0.876 avg

+15.87% vs cheapest single venue

polymarket$1.0K @ 0.756

kalshi

Arbitrage Opportunity

+2.04%theoretical onlyPAPER

Stake split for $1,000 bankroll

Valentina Ryser (polymarket, $725) — slippage 3.6% — eats into edge

Celia Cervino Ruiz (kalshi, $276) — slippage 34.3% > 10% cap — fillable up to $177

Outcome	Platform	Odds	Stake	To win
Valentina Ryserthin	polymarket	1.41	$725	$1020
Celia Cervino Ruizthin	kalshi	3.70	$276	$1020

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 — Valentina Ryser

Spread

1.5pp

kalshi at 72.5% vs polymarket at 71.0%

Expected Value

+2.11%

Per $1 staked at polymarket (1.41) if kalshi's price is fair.

Kelly Stake

5.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $30
24h Volume: $30
Liquidity: $906
Open Interest: $11

Resolves: in 7d 8h

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

kalshi

updated just now

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

Resolves: in 14d 8h

Settlement Timeline

polymarketin 7d 8h · Jul 16, 2026, 8:00 AM
kalshiin 14d 8h · Jul 23, 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

Related Events

Tennis

▲+42.5%

ITF Kursumlijska Banja: Pedro Vives Marcos vs Valerio Bracci

Vol: $235.78

Tennis

▲+41.5%

ITF Kursumlijska Banja: Emira Diabate vs Dimitra Pavlou

Vol: $1K

Tennis

▲+20.0%

ITF Kursumlijska Banja: Sophie Luescher vs Lucia Natal

Vol: $17K

Tennis

▲+11.0%

ITF Kursumlijska Banja: Alen Mujakic vs Alessandro Bellifemine

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.