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ITF Irvine: Jack Satterfield vs Spencer Johnson

Other · June 18, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.000000

Platform Prices — Jack Satterfield

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	3.70	27.0%	$0.27	---	Bet Here
Polymarket	3.57	28.0%	$0.28	+1.0pp	Bet Here

KalshiBest

$0.27

Odds

3.70

Implied

27.0%

Edge

---

Bet Here

Polymarket

$0.28

Odds

3.57

Implied

28.0%

Edge

+1.0pp

Bet Here

All Outcomes

Jack Satterfield

Best: 28.0% on polymarket

▲+1.0%

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

28.0%

27.0%

Spencer Johnson

Best: 73.0% on kalshi

▲+1.0%

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

72.0%

73.0%

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.

Jack Satterfield

cheapest single venue: kalshi at 0.270

Retail tier ($5k/venue)

$5.0K@ 0.443 avg

+0.00% vs cheapest single venue

kalshi$5.0K @ 0.443

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

Sharp tier ($25k/venue)

$25.0K@ 0.463 avg

-0.00% vs cheapest single venue

kalshi$25.0K @ 0.463

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

Fillable up to $451

Jack Satterfield (kalshi, $273) — slippage 34.6% > 10% cap — fillable up to $141

Spencer Johnson (polymarket, $727) — slippage 2.3% — eats into edge

Outcome	Platform	Odds	Stake	To win
Jack Satterfieldthin	kalshi	3.70	$273	$1010
Spencer Johnsonthin	polymarket	1.39	$727	$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 — Jack Satterfield

Spread

1.0pp

polymarket at 28.0% vs kalshi at 27.0%

Expected Value

+3.70%

Per $1 staked at kalshi (3.70) if polymarket's price is fair.

Kelly Stake

1.4%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $6
24h Volume: $6
Liquidity: $4.0K
Open Interest: $6

Resolves: in 7d 6h

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

kalshi

updated just now

Volume: $1
24h Volume: $1
Liquidity: $0
Open Interest: $1

Resolves: in 14d 6h

Settlement Timeline

polymarketin 7d 6h · Jun 25, 2026, 7:00 PM
kalshiin 14d 6h · Jul 2, 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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