TennisUPCOMING

Live· updated 51s ago

ITF Lodz: Martins Rocens vs Petros Tsitsipas

Other · July 8, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Martins Rocens

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	4.17	24.0%	$0.24	---	Bet Here
Polymarket	3.70	27.0%	$0.27	+3.0pp	Bet Here

KalshiBest

$0.24

Odds

4.17

Implied

24.0%

Edge

---

Bet Here

Polymarket

$0.27

Odds

3.70

Implied

27.0%

Edge

+3.0pp

Bet Here

All Outcomes

Martins Rocens

Best: 27.0% on polymarket

▲+3.0%

Prediction market is 3.0% cheaper than sportsbooks. Consider buying on PM.

27.0%

24.0%

Petros Tsitsipas

Best: 75.0% on kalshi

▲+2.0%

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

73.0%

75.0%

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.

Martins Rocens

cheapest single venue: kalshi at 0.240

Retail tier ($5k/venue)

$6.0K@ 0.744 avg

+32.52% vs cheapest single venue

polymarket$1.0K @ 0.562

kalshi$5.0K @ 0.781

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

Sharp tier ($25k/venue)

$26.0K@ 0.807 avg

+43.77% vs cheapest single venue

polymarket$1.0K @ 0.562

kalshi

Arbitrage Opportunity

+3.09%theoretical onlyPAPER

Fillable up to $359

Martins Rocens (kalshi, $247) — slippage 142.6% > 10% cap — fillable up to $89

Outcome	Platform	Odds	Stake	To win
Martins Rocensthin	kalshi	4.17	$247	$1031
Petros Tsitsipasthin	polymarket	1.37	$753	$1031

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 — Martins Rocens

Spread

3.0pp

polymarket at 27.0% vs kalshi at 24.0%

Expected Value

+12.50%

Per $1 staked at kalshi (4.17) if polymarket's price is fair.

Kelly Stake

3.9%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $41
24h Volume: $41
Liquidity: $3.5K
Open Interest: $41

Resolves: in 7d 7h

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

kalshi

updated just now

Volume: $2
24h Volume: $2
Liquidity: $0
Open Interest: $1

Resolves: in 14d 7h

Settlement Timeline

polymarketin 7d 7h · Jul 15, 2026, 9:00 AM
kalshiin 14d 7h · Jul 22, 2026, 9:00 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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