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Live· updated 1m ago

ITF Tokyo: Kazushi Idogaki vs Naoya Honda

Other · July 7, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Kazushi Idogaki

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	7.69	13.0%	$0.13	---	Bet Here
Polymarket	7.14	14.0%	$0.14	+1.0pp	Bet Here

KalshiBest

$0.13

Odds

7.69

Implied

13.0%

Edge

---

Bet Here

Polymarket

$0.14

Odds

7.14

Implied

14.0%

Edge

+1.0pp

Bet Here

All Outcomes

Kazushi Idogaki

Best: 14.0% on polymarket

▲+1.0%

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

13.0%

14.0%

Naoya Honda

Best: 87.0% on kalshi

▲+1.0%

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

87.0%

86.0%

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.

Kazushi Idogaki

cheapest single venue: kalshi at 0.130

Retail tier ($5k/venue)

$5.0K@ 0.138 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.138

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

Sharp tier ($25k/venue)

$25.0K@ 0.352 avg

+0.00% vs cheapest single venue

kalshi$25.0K @ 0.352

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

Kazushi Idogaki (kalshi, $131) — slippage 11.1% > 10% cap — fillable up to $4

Naoya Honda (polymarket, $869) — not enough depth at $869 — fillable up to $232

Outcome	Platform	Odds	Stake	To win
Kazushi Idogakithin	kalshi	7.69	$131	$1010
Naoya Hondathin	polymarket	1.16	$869	$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 — Kazushi Idogaki

Spread

1.0pp

polymarket at 14.0% vs kalshi at 13.0%

Expected Value

+7.69%

Per $1 staked at kalshi (7.69) if polymarket's price is fair.

Kelly Stake

1.1%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

kalshi

updated just now

Volume: $37.0K
24h Volume: $16.8K
Liquidity: $0
Open Interest: $33.4K

Resolves: in 13d 23h

polymarket

updated just now

Volume: $380
24h Volume: $380
Liquidity: $5.0K
Open Interest: $292

Resolves: in 6d 23h

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

Settlement Timeline

polymarketin 6d 23h · Jul 15, 2026, 1:00 AM
kalshiin 13d 23h · Jul 22, 2026, 1:00 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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