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ITF Saskatoon: Kayo Nishimura vs Isabella Marton

Other · July 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00

Platform Prices — Kayo Nishimura

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.26	79.5%	$0.80	---	Bet Here
Kalshi	1.23	81.0%	$0.81	+1.5pp	Bet Here

PolymarketBest

$0.80

Odds

1.26

Implied

79.5%

Edge

---

Bet Here

Kalshi

$0.81

Odds

1.23

Implied

81.0%

Edge

+1.5pp

Bet Here

All Outcomes

Kayo Nishimura

Best: 81.0% on kalshi

▲+1.5%

Prediction market is 1.5% cheaper than sportsbooks. Consider buying on PM.

79.5%

81.0%

Isabella Marton

Best: 20.5% on polymarket

▲+1.0%

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

20.5%

19.5%

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.

Kayo Nishimura

cheapest single venue: polymarket at 0.795

Retail tier ($5k/venue)

$10.0K@ 0.833 avg

+1.03% vs cheapest single venue

kalshi$5.0K @ 0.824

polymarket$5.0K @ 0.841

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

Sharp tier ($25k/venue)

$30.0K@ 0.834 avg

+0.19% vs cheapest single venue

kalshi$25.0K @ 0.832

polymarket

Arbitrage Opportunity

+1.01%theoretical onlyPAPER

Stake split for $1,000 bankroll

Kayo Nishimura (polymarket, $803) — slippage 3.1% — eats into edge

Isabella Marton (kalshi, $197) — slippage 4.7% — eats into edge

Outcome	Platform	Odds	Stake	To win
Kayo Nishimurathin	polymarket	1.26	$803	$1010
Isabella Martonthin	kalshi	5.13	$197	$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 — Kayo Nishimura

Spread

1.5pp

kalshi at 81.0% vs polymarket at 79.5%

Expected Value

+1.89%

Per $1 staked at polymarket (1.26) if kalshi's price is fair.

Kelly Stake

7.3%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $20
24h Volume: $20
Liquidity: $5.8K
Open Interest: $20

Resolves: in 7d 4h

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

kalshi

updated just now

Volume: $13
24h Volume: $13
Liquidity: $0
Open Interest: $13

Resolves: in 14d 4h

Settlement Timeline

polymarketin 7d 4h · Jul 28, 2026, 8:00 PM
kalshiin 14d 4h · Aug 4, 2026, 8:00 PM

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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