TennisUPCOMING

Stale· updated 3m ago

ITF Bielsko Biala: Barbora Michalkova vs Polina Berezina

Other · July 28, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Barbora Michalkova

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	3.77	26.5%	$0.27	---	Bet Here
Polymarket	3.64	27.5%	$0.28	+1.0pp	Bet Here

KalshiBest

$0.27

Odds

3.77

Implied

26.5%

Edge

---

Bet Here

Polymarket

$0.28

Odds

3.64

Implied

27.5%

Edge

+1.0pp

Bet Here

All Outcomes

Barbora Michalkova

Best: 27.5% on polymarket

▲+1.0%

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

27.5%

26.5%

Polina Berezina

Best: 72.5% on kalshi

▼0.0%

Prices are roughly equal across platforms.

72.5%

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.

Barbora Michalkova

cheapest single venue: kalshi at 0.265

Retail tier ($5k/venue)

$6.0K@ 0.404 avg

+30.22% vs cheapest single venue

polymarket$1.0K @ 0.311

kalshi$5.0K @ 0.423

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

Sharp tier ($25k/venue)

$26.0K@ 0.687 avg

+121.21% vs cheapest single venue

polymarket$1.0K @ 0.311

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Stake split for $1,000 bankroll

Barbora Michalkova (kalshi, $268) — slippage 6.6% — eats into edge

Outcome	Platform	Odds	Stake	To win
Barbora Michalkovathin	kalshi	3.77	$268	$1010
Polina Berezinathin	polymarket	1.38	$732	$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 — Barbora Michalkova

Spread

1.0pp

polymarket at 27.5% vs kalshi at 26.5%

Expected Value

+3.77%

Per $1 staked at kalshi (3.77) if polymarket's price is fair.

Kelly Stake

1.4%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $173
Open Interest: —

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 · Aug 4, 2026, 10:00 AM
kalshiin 14d 8h · Aug 11, 2026, 10:00 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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