TennisUPCOMING

Live· updated 53s ago

ITF Bucharest: Filippo Mazzola vs Stefan Horia Haita

Other · May 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Filippo Mazzola

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.35	42.5%	$0.43	---	Bet Here
Polymarket	1.43	70.0%	$0.70	+27.5pp	Bet Here

KalshiBest

$0.43

Odds

2.35

Implied

42.5%

Edge

---

Bet Here

Polymarket

$0.70

Odds

1.43

Implied

70.0%

Edge

+27.5pp

Bet Here

All Outcomes

Filippo Mazzola

Best: 70.0% on polymarket

▲+27.5%

Prediction market is 27.5% cheaper than sportsbooks. Consider buying on PM.

70.0%

42.5%

Stefan Horia Haita

Best: 58.5% on kalshi

▲+28.5%

Prediction market is 28.5% cheaper than sportsbooks. Consider buying on PM.

30.0%

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.

Filippo Mazzola

cheapest single venue: kalshi at 0.425

Retail tier ($5k/venue)

$5.0K@ 0.657 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.657

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

Sharp tier ($25k/venue)

$25.0K@ 0.843 avg

-0.00% vs cheapest single venue

kalshi$25.0K @ 0.843

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

Whale tier (max known capacity)

Arbitrage Opportunity

+37.93%theoretical onlyPAPER

Stake split for $1,000 bankroll

Filippo Mazzola (kalshi, $586) — slippage 6.1% — eats into edge

Stefan Horia Haita (polymarket, $414) — not enough depth at $414

Outcome	Platform	Odds	Stake	To win
Filippo Mazzolathin	kalshi	2.35	$586	$1379
Stefan Horia Haitathin	polymarket	3.33	$414	$1379

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 — Filippo Mazzola

Spread

27.5pp

polymarket at 70.0% vs kalshi at 42.5%

Expected Value

+64.71%

Per $1 staked at kalshi (2.35) if polymarket's price is fair.

Kelly Stake

25.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $704
Open Interest: —

Resolves: in 7d 0h

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

kalshi

updated just now

Volume: $10
24h Volume: $10
Liquidity: $0
Open Interest: $10

Resolves: in 14d 0h

Settlement Timeline

polymarketin 7d 0h · May 28, 2026, 7:00 AM
kalshiin 14d 0h · Jun 4, 2026, 7:00 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

Related Events

Tennis

▲+84.0%

ITF Gimcheon: Shinji Hazawa vs Geun Jun Kim

Vol: $1.1M

Tennis

▲+48.0%

ITF Gaborone: Ronan Tashinga Mtisi vs Constantin Bittoun Kouzmine

Vol: $227.3

Tennis

▲+45.5%

ITF Bol: Gabriele Brancatelli vs Maks Kasnikowski

Vol: $295.09999999999997

Tennis

▲+45.0%

ITF Deauville: Alexander Maarten Sander Jong vs Tristan Berard

18+ only. Gambling involves risk. Please gamble responsibly. If you or someone you know has a gambling problem, call 1-800-522-4700. OddsBridge does not accept bets -- we provide odds comparison and informational content only. Past performance does not guarantee future results. Odds and prices shown may not reflect the most current values. Always verify prices on the platform before placing a bet or trade.