TennisUPCOMING

Live· updated 31s ago

ITF Bolszewo: Barbara Kostecka vs Emilija Tverijonaite

Other · June 17, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Barbara Kostecka

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.44	41.0%	$0.41	---	Bet Here
Polymarket	2.35	42.5%	$0.43	+1.5pp	Bet Here

KalshiBest

$0.41

Odds

2.44

Implied

41.0%

Edge

---

Bet Here

Polymarket

$0.43

Odds

2.35

Implied

42.5%

Edge

+1.5pp

Bet Here

All Outcomes

Barbara Kostecka

Best: 42.5% on polymarket

▲+1.5%

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

42.5%

41.0%

Emilija Tverijonaite

Best: 58.5% on kalshi

▲+1.0%

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

57.5%

58.5%

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.

Barbara Kostecka

cheapest single venue: kalshi at 0.410

Retail tier ($5k/venue)

$5.0K@ 0.525 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.525

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

Sharp tier ($25k/venue)

$25.0K@ 0.775 avg

+0.00% vs cheapest single venue

kalshi$25.0K @ 0.775

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

Whale tier (max known capacity)

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Fillable up to $256

Barbara Kostecka (kalshi, $416) — slippage 7.3% — eats into edge

Emilija Tverijonaite (polymarket, $584) — slippage 2.5% — eats into edge

Outcome	Platform	Odds	Stake	To win
Barbara Kosteckathin	kalshi	2.44	$416	$1015
Emilija Tverijonaitethin	polymarket	1.74	$584	$1015

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 — Barbara Kostecka

Spread

1.5pp

polymarket at 42.5% vs kalshi at 41.0%

Expected Value

+3.66%

Per $1 staked at kalshi (2.44) if polymarket's price is fair.

Kelly Stake

2.5%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $1.7K
Open Interest: —

Resolves: in 7d 0h

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 0h

Settlement Timeline

polymarketin 7d 0h · Jun 24, 2026, 11:00 AM
kalshiin 14d 0h · Jul 1, 2026, 11:00 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

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