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Stale· updated 2m ago

ITF Saskatoon: Erika Sema vs Teah Chavez

Other · July 23, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.00000000000000

Platform Prices — Erika Sema

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	1.92	52.0%	$0.52	---	Bet Here
Polymarket	1.44	69.5%	$0.70	+17.5pp	Bet Here

KalshiBest

$0.52

Odds

1.92

Implied

52.0%

Edge

---

Bet Here

Polymarket

$0.70

Odds

1.44

Implied

69.5%

Edge

+17.5pp

Bet Here

All Outcomes

Erika Sema

Best: 69.5% on polymarket

▲+17.5%

Prediction market is 17.5% cheaper than sportsbooks. Consider buying on PM.

69.5%

52.0%

Teah Chavez

Best: 47.5% on kalshi

▲+17.0%

Prediction market is 17.0% cheaper than sportsbooks. Consider buying on PM.

30.5%

47.5%

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.

Erika Sema

cheapest single venue: kalshi at 0.520

Retail tier ($5k/venue)

$6.0K@ 0.724 avg

+6.98% vs cheapest single venue

kalshi$5.0K @ 0.677

polymarket$1.0K @ 0.960

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

Sharp tier ($25k/venue)

$26.0K@ 0.842 avg

+0.57% vs cheapest single venue

kalshi$25.0K @ 0.837

polymarket

Arbitrage Opportunity

+21.21%theoretical onlyPAPER

Stake split for $1,000 bankroll

Erika Sema (kalshi, $630) — slippage 6.6% — eats into edge

Teah Chavez (polymarket, $370) — slippage 47.9% > 10% cap — fillable up to $8

Outcome	Platform	Odds	Stake	To win
Erika Semathin	kalshi	1.92	$630	$1212
Teah Chavezthin	polymarket	3.28	$370	$1212

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 — Erika Sema

Spread

17.5pp

polymarket at 69.5% vs kalshi at 52.0%

Expected Value

+33.65%

Per $1 staked at kalshi (1.92) if polymarket's price is fair.

Kelly Stake

25.0%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $23
24h Volume: $23
Liquidity: $755
Open Interest: —

Resolves: in 7d 5h

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

kalshi

updated just now

Volume: $175
24h Volume: $96
Liquidity: $0
Open Interest: $175

Resolves: in 14d 5h

Settlement Timeline

polymarketin 7d 5h · Jul 30, 2026, 6:00 PM
kalshiin 14d 5h · Aug 6, 2026, 6:00 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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