TennisUPCOMING

Live· updated 20s ago

ITF Monastir: Yelyzaveta Chainykova vs Laia Petretic

Other · May 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Yelyzaveta Chainykova

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	4.44	22.5%	$0.23	---	Bet Here
KalshiBest	4.35	23.0%	$0.23	+0.5pp	Bet Here

PolymarketBest

$0.23

Odds

4.44

Implied

22.5%

Edge

---

Bet Here

KalshiBest

$0.23

Odds

4.35

Implied

23.0%

Edge

+0.5pp

Bet Here

All Outcomes

Yelyzaveta Chainykova

Best: 23.0% on kalshi

▲+0.5%

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

22.5%

23.0%

Laia Petretic

Best: 77.5% on polymarket

▲+1.0%

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

77.5%

76.5%

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.

Yelyzaveta Chainykova

cheapest single venue: polymarket at 0.225

Retail tier ($5k/venue)

$5.0K@ 0.631 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.631

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

Sharp tier ($25k/venue)

$25.0K@ 0.882 avg

+0.00% vs cheapest single venue

kalshi$25.0K @ 0.882

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

Whale tier (max known capacity)

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Stake split for $1,000 bankroll

Yelyzaveta Chainykova (polymarket, $227) — not enough depth at $227

Laia Petretic (kalshi, $773) — slippage 14.3% > 10% cap

Outcome	Platform	Odds	Stake	To win
Yelyzaveta Chainykovathin	polymarket	4.44	$227	$1010
Laia Petreticthin	kalshi	1.31	$773	$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 — Yelyzaveta Chainykova

Spread

0.5pp

kalshi at 23.0% vs polymarket at 22.5%

Expected Value

+2.22%

Per $1 staked at polymarket (4.44) if kalshi's price is fair.

Kelly Stake

0.6%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $51
24h Volume: $51
Liquidity: $546
Open Interest: $51

Resolves: in 7d 3h

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

kalshi

updated just now

Volume: $57
24h Volume: $57
Liquidity: $0
Open Interest: $57

Resolves: in 14d 3h

Settlement Timeline

polymarketin 7d 3h · May 28, 2026, 9:30 AM
kalshiin 14d 3h · Jun 4, 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

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.