TennisUPCOMING

Stale· updated 3m ago

National Bank Open: Janice Tjen vs Liudmila Samsonova

Other · August 2, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Janice Tjen

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.63	38.0%	$0.38	---	Bet Here
Polymarket	2.56	39.0%	$0.39	+1.0pp	Bet Here

KalshiBest

$0.38

Odds

2.63

Implied

38.0%

Edge

---

Bet Here

Polymarket

$0.39

Odds

2.56

Implied

39.0%

Edge

+1.0pp

Bet Here

All Outcomes

Janice Tjen

Best: 39.0% on polymarket

▲+1.0%

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

38.0%

39.0%

Liudmila Samsonova

Best: 63.0% on kalshi

▲+2.0%

Prediction market is 2.0% cheaper than sportsbooks. Consider buying on PM.

63.0%

61.0%

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.

Janice Tjen

cheapest single venue: kalshi at 0.380

Retail tier ($5k/venue)

$10.0K@ 0.406 avg

+2.91% vs cheapest single venue

kalshi$5.0K @ 0.394

polymarket$5.0K @ 0.417

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

Sharp tier ($25k/venue)

$50.0K@ 0.549 avg

+32.79% vs cheapest single venue

kalshi$25.0K @ 0.413

polymarket

Arbitrage Opportunity

+1.01%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Janice Tjenthin	kalshi	2.63	$384	$1010
Liudmila Samsonovathin	polymarket	1.64	$616	$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 — Janice Tjen

Spread

1.0pp

polymarket at 39.0% vs kalshi at 38.0%

Expected Value

+2.63%

Per $1 staked at kalshi (2.63) if polymarket's price is fair.

Kelly Stake

1.6%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

kalshi

updated just now

Volume: $1.1K
24h Volume: $1.1K
Liquidity: $0
Open Interest: $1.1K

Resolves: in 14d 20h

polymarket

updated just now

Volume: $49
24h Volume: $49
Liquidity: $35.2K
Open Interest: $49

Resolves: in 8d 19h

Source: https://www.wtatennis.com/scores

Settlement Timeline

polymarketin 8d 19h · Aug 10, 2026, 2:00 PM
kalshiin 14d 20h · Aug 16, 2026, 3:00 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 Kalshi Trade on Polymarket

Related Events

Tennis

▲+2.5%

National Bank Open: McCartney Kessler vs Cadence Brace

Vol: $3K

Tennis

▲+2.5%

National Bank Open: Katie Boulter vs Kayla Cross

Vol: $2K

Tennis

▲+2.5%

National Bank Open: Kimberly Birrell vs Viktorija Golubic

Vol: $142.291665

Tennis

▲+2.5%

National Bank Open: Talia Gibson vs Elisabetta Cocciaretto

Vol: $40

18+ only. Gambling involves risk. Please gamble responsibly. If you or someone you know has a gambling problem, call 1-800-522-4700. OddsBridge does not accept bets -- we provide odds comparison and informational content only. Past performance does not guarantee future results. Odds and prices shown may not reflect the most current values. Always verify prices on the platform before placing a bet or trade.