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Stuttgart Open, Qualification: Roman Safiullin vs Petr Bar Biryukov

Other · June 6, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Roman Safiullin

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	1.16	86.5%	$0.87	---	Bet Here
KalshiBest	1.15	87.0%	$0.87	+0.5pp	Bet Here

PolymarketBest

$0.87

Odds

1.16

Implied

86.5%

Edge

---

Bet Here

KalshiBest

$0.87

Odds

1.15

Implied

87.0%

Edge

+0.5pp

Bet Here

All Outcomes

Roman Safiullin

Best: 87.0% on kalshi

▲+0.5%

Prediction market is 0.5% cheaper than sportsbooks. Consider buying on PM.

86.5%

87.0%

Petr Bar Biryukov

Best: 14.0% on kalshi

▲+0.5%

Prediction market is 0.5% cheaper than sportsbooks. Consider buying on PM.

13.5%

14.0%

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.

Roman Safiullin

cheapest single venue: polymarket at 0.865

Retail tier ($5k/venue)

$10.0K@ 0.881 avg

+0.16% vs cheapest single venue

polymarket$5.0K @ 0.880

kalshi$5.0K @ 0.883

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

Sharp tier ($25k/venue)

$50.0K@ 0.892 avg

+0.17% vs cheapest single venue

kalshi$25.0K @ 0.890

polymarket

Arbitrage Opportunity

+0.00%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Roman Safiullin	polymarket	1.16	$865	$1000
Petr Bar Biryukov	polymarket	7.41	$135	$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 — Roman Safiullin

Spread

0.5pp

kalshi at 87.0% vs polymarket at 86.5%

Expected Value

+0.58%

Per $1 staked at polymarket (1.16) if kalshi's price is fair.

Kelly Stake

3.7%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $11.9K
24h Volume: $11.9K
Liquidity: $65.2K
Open Interest: $11.9K

Resolves: in 7d 0h

Source: https://www.atptour.com/en/scores/current

kalshi

updated just now

Volume: $4.7K
24h Volume: $4.1K
Liquidity: $0
Open Interest: $4.4K

Resolves: in 13d 23h

Settlement Timeline

polymarketin 7d 0h · Jun 13, 2026, 1:40 PM
kalshiin 13d 23h · Jun 20, 2026, 12:50 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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