TennisUPCOMING

Live· updated 32s ago

ITF Aschaffenburg: Valentina Steiner vs Sapfo Sakellaridi

Other · July 8, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Valentina Steiner

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.80	55.5%	$0.55	---	Bet Here
Polymarket	1.80	55.5%	$0.56	---	Bet Here

KalshiBest

$0.55

Odds

1.80

Implied

55.5%

Edge

---

Bet Here

Polymarket

$0.56

Odds

1.80

Implied

55.5%

Edge

---

Bet Here

All Outcomes

Valentina Steiner

Best: 55.5% on polymarket

▼0.0%

Prices are roughly equal across platforms.

55.5%

Sapfo Sakellaridi

Best: 44.5% on kalshi

▼0.0%

Prices are roughly equal across platforms.

44.5%

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.

Valentina Steiner

cheapest single venue: kalshi at 0.555

Retail tier ($5k/venue)

$6.0K@ 0.704 avg

+21.62% vs cheapest single venue

polymarket$1.0K @ 0.579

kalshi$5.0K @ 0.729

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

Sharp tier ($25k/venue)

$26.0K@ 0.857 avg

+47.92% vs cheapest single venue

polymarket$1.0K @ 0.579

kalshi

Arbitrage Opportunity

+0.00%theoretical onlyPAPER

Stake split for $1,000 bankroll

Valentina Steiner (kalshi, $555) — slippage 2.4% — eats into edge

Sapfo Sakellaridi (polymarket, $445) — slippage 11.9% > 10% cap — fillable up to $483

Outcome	Platform	Odds	Stake	To win
Valentina Steinerthin	kalshi	1.80	$555	$1000
Sapfo Sakellaridithin	polymarket	2.25	$445	$1000

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 Steiner

Spread

0.0pp

polymarket at 55.5% vs kalshi at 55.5%

Expected Value

+0.00%

Per $1 staked at kalshi (1.80) if polymarket's price is fair.

Kelly Stake

0.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $10
24h Volume: $10
Liquidity: $6.8K
Open Interest: $10

Resolves: in 7d 10h

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 10h

Settlement Timeline

polymarketin 7d 10h · Jul 15, 2026, 12:00 PM
kalshiin 14d 10h · Jul 22, 2026, 12:00 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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