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ITF Irvine: William Kleege vs Spencer Johnson

Other · June 17, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

Platform Prices — William Kleege

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	10.00	10.0%	$0.10	---	Bet Here
Kalshi	7.69	13.0%	$0.13	+3.0pp	Bet Here

PolymarketBest

$0.10

Odds

10.00

Implied

10.0%

Edge

---

Bet Here

Kalshi

$0.13

Odds

7.69

Implied

13.0%

Edge

+3.0pp

Bet Here

All Outcomes

William Kleege

Best: 13.0% on kalshi

▲+3.0%

Prediction market is 3.0% cheaper than sportsbooks. Consider buying on PM.

10.0%

13.0%

Spencer Johnson

Best: 91.5% on kalshi

▲+1.5%

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

90.0%

91.5%

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.

William Kleege

cheapest single venue: polymarket at 0.100

Retail tier ($5k/venue)

$5.0K@ 0.225 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.225

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

Sharp tier ($25k/venue)

$25.0K@ 0.267 avg

+0.00% vs cheapest single venue

kalshi$25.0K @ 0.267

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

Whale tier (max known capacity)

Arbitrage Opportunity

+0.00%theoretical onlyPAPER

Stake split for $1,000 bankroll

William Kleege (polymarket, $100) — not enough depth at $100 — fillable up to $9

Spencer Johnson (polymarket, $900) — not enough depth at $900 — fillable up to $19

Outcome	Platform	Odds	Stake	To win
William Kleegethin	polymarket	10.00	$100	$1000
Spencer Johnsonthin	polymarket	1.11	$900	$1000

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 — William Kleege

Spread

3.0pp

kalshi at 13.0% vs polymarket at 10.0%

Expected Value

+30.00%

Per $1 staked at polymarket (10.00) if kalshi's price is fair.

Kelly Stake

3.3%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $279
Open Interest: —

Resolves: in 7d 2h

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

kalshi

updated just now

Volume: $40
24h Volume: $40
Liquidity: $0
Open Interest: $40

Resolves: in 14d 2h

Settlement Timeline

polymarketin 7d 2h · Jun 24, 2026, 7:00 PM
kalshiin 14d 2h · Jul 1, 2026, 7:00 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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