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Live· updated 42s ago

ITF Kurume: Katie Swan vs Kyoka Okamura

Other · May 16, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — Katie Swan

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	2.00	50.0%	$0.50	---	Bet Here
Kalshi	1.32	75.5%	$0.76	+25.5pp	Bet Here

PolymarketBest

$0.50

Odds

2.00

Implied

50.0%

Edge

---

Bet Here

Kalshi

$0.76

Odds

1.32

Implied

75.5%

Edge

+25.5pp

Bet Here

All Outcomes

Katie Swan

Best: 75.5% on kalshi

▲+25.5%

Prediction market is 25.5% cheaper than sportsbooks. Consider buying on PM.

75.5%

50.0%

Kyoka Okamura

Best: 50.0% on polymarket

▲+25.5%

Prediction market is 25.5% cheaper than sportsbooks. Consider buying on PM.

24.5%

50.0%

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.

Katie Swan

cheapest single venue: polymarket at 0.500

Retail tier ($5k/venue)

$10.0K@ 0.972 avg

+0.58% vs cheapest single venue

kalshi$5.0K @ 0.966

polymarket$5.0K @ 0.977

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

Sharp tier ($25k/venue)

$50.0K@ 0.981 avg

+0.40% vs cheapest single venue

polymarket$25.0K @ 0.977

kalshi

Arbitrage Opportunity

+34.23%theoretical onlyPAPER

Stake split for $1,000 bankroll

Kyoka Okamura (kalshi, $329) — slippage 175.6% > 10% cap

Outcome	Platform	Odds	Stake	To win
Katie Swanthin	polymarket	2.00	$671	$1342
Kyoka Okamurathin	kalshi	4.08	$329	$1343

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 — Katie Swan

Spread

25.5pp

kalshi at 75.5% vs polymarket at 50.0%

Expected Value

+51.00%

Per $1 staked at polymarket (2.00) if kalshi's price is fair.

Kelly Stake

25.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

kalshi

updated just now

Volume: $200
24h Volume: $0
Liquidity: $0
Open Interest: $200

Resolves: in 14d 11h

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $113
Open Interest: —

Resolves: in 7d 11h

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

Settlement Timeline

polymarketin 7d 11h · May 24, 2026, 2:00 AM
kalshiin 14d 11h · May 31, 2026, 2:00 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 Kalshi Trade on Polymarket

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