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ITF Harmon: Tai Leonard Sach vs Seiya Nakanishi

Other · June 2, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.0000

Platform Prices — Tai Leonard Sach

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.06	94.0%	$0.94	---	Bet Here
Polymarket	1.05	95.5%	$0.96	+1.5pp	Bet Here

KalshiBest

$0.94

Odds

1.06

Implied

94.0%

Edge

---

Bet Here

Polymarket

$0.96

Odds

1.05

Implied

95.5%

Edge

+1.5pp

Bet Here

All Outcomes

Tai Leonard Sach

Best: 95.5% on polymarket

▲+1.5%

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

94.0%

95.5%

Seiya Nakanishi

Best: 12.0% on kalshi

▲+7.5%

Prediction market is 7.5% cheaper than sportsbooks. Consider buying on PM.

12.0%

4.5%

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.

Tai Leonard Sach

cheapest single venue: kalshi at 0.940

Retail tier ($5k/venue)

$6.0K@ 0.981 avg

+2.13% vs cheapest single venue

polymarket$1.0K @ 0.961

kalshi$5.0K @ 0.985

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

Sharp tier ($25k/venue)

$26.0K@ 0.988 avg

+2.85% vs cheapest single venue

polymarket$1.0K @ 0.961

kalshi

Arbitrage Opportunity

+1.52%theoretical onlyPAPER

Stake split for $1,000 bankroll

Tai Leonard Sach (kalshi, $954) — slippage 2.8% — eats into edge

Seiya Nakanishi (polymarket, $46) — not enough depth at $46

Outcome	Platform	Odds	Stake	To win
Tai Leonard Sachthin	kalshi	1.06	$954	$1015
Seiya Nakanishithin	polymarket	22.22	$46	$1016

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 — Tai Leonard Sach

Spread

1.5pp

polymarket at 95.5% vs kalshi at 94.0%

Expected Value

+1.60%

Per $1 staked at kalshi (1.06) if polymarket's price is fair.

Kelly Stake

25.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

kalshi

updated just now

Volume: $6
24h Volume: $6
Liquidity: $0
Open Interest: $6

Resolves: in 14d 11h

polymarket

updated just now

Volume: $13
24h Volume: $13
Liquidity: $623
Open Interest: $6

Resolves: in 7d 12h

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

Settlement Timeline

polymarketin 7d 12h · Jun 10, 2026, 1:00 AM
kalshiin 14d 11h · Jun 17, 2026, 12:00 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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