TennisUPCOMING

Live· updated 40s ago

ITF Corroios-Seixal: Ella Seidel vs Anastasia Kulikova

Other · July 7, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Ella Seidel

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.30	77.0%	$0.77	---	Bet Here
Kalshi	1.29	77.5%	$0.78	+0.5pp	Bet Here

PolymarketBest

$0.77

Odds

1.30

Implied

77.0%

Edge

---

Bet Here

Kalshi

$0.78

Odds

1.29

Implied

77.5%

Edge

+0.5pp

Bet Here

All Outcomes

Ella Seidel

Best: 77.5% on kalshi

▲+0.5%

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

77.0%

77.5%

Anastasia Kulikova

Best: 23.0% on polymarket

▲+1.0%

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

23.0%

22.0%

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.

Ella Seidel

cheapest single venue: polymarket at 0.770

Retail tier ($5k/venue)

$6.0K@ 0.809 avg

+3.34% vs cheapest single venue

polymarket$1.0K @ 0.783

kalshi$5.0K @ 0.814

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

Sharp tier ($25k/venue)

$26.0K@ 0.841 avg

+7.42% vs cheapest single venue

polymarket$1.0K @ 0.783

kalshi

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Fillable up to $327

Anastasia Kulikova (kalshi, $222) — slippage 18.9% > 10% cap — fillable up to $73

Outcome	Platform	Odds	Stake	To win
Ella Seidelthin	polymarket	1.30	$778	$1010
Anastasia Kulikovathin	kalshi	4.54	$222	$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 — Ella Seidel

Spread

0.5pp

kalshi at 77.5% vs polymarket at 77.0%

Expected Value

+0.65%

Per $1 staked at polymarket (1.30) if kalshi's price is fair.

Kelly Stake

2.2%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $19
24h Volume: $19
Liquidity: $982
Open Interest: $19

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 14, 2026, 9:30 AM
kalshiin 14d 8h · Jul 21, 2026, 9:30 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

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