TennisUPCOMING

Live· updated 1m ago

Alex Michelsen vs Learner Tien: Exact Match Score

ATP · May 21, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0K

Platform Prices — Alex Michelsen wins 2-0

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
PolymarketBest	2.20	45.5%	$0.46	---	Bet Here
Kalshi	2.13	47.0%	$0.47	+1.5pp	Bet Here

PolymarketBest

$0.46

Odds

2.20

Implied

45.5%

Edge

---

Bet Here

Kalshi

$0.47

Odds

2.13

Implied

47.0%

Edge

+1.5pp

Bet Here

All Outcomes

Alex Michelsen wins 2-0

Best: 47.0% on kalshi

▲+1.5%

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

45.5%

47.0%

Learner Tien wins 2-1

Best: 54.5% on polymarket

▲+0.5%

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

54.5%

54.0%

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.

Alex Michelsen wins 2-0

cheapest single venue: polymarket at 0.455

Retail tier ($5k/venue)

$10.0K@ 0.495 avg

+1.22% vs cheapest single venue

kalshi$5.0K @ 0.489

polymarket$5.0K @ 0.501

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

Sharp tier ($25k/venue)

$50.0K@ 0.502 avg

+0.39% vs cheapest single venue

polymarket$25.0K @ 0.501

Arbitrage Opportunity

+0.50%fillable risk-free returnEXECUTABLE

Stake split for $1,000 bankroll

Outcome	Platform	Odds	Stake	To win
Alex Michelsen wins 2-0	polymarket	2.20	$457	$1005
Learner Tien wins 2-1thin	kalshi	1.85	$543	$1005

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 — Alex Michelsen wins 2-0

Spread

1.5pp

kalshi at 47.0% vs polymarket at 45.5%

Expected Value

+3.30%

Per $1 staked at polymarket (2.20) if kalshi's price is fair.

Kelly Stake

2.8%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: $4.4K
24h Volume: $4.4K
Liquidity: $49.9K
Open Interest: $3.5K

Resolves: in 7d 10h

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

kalshi

updated just now

Volume: $16.9K
24h Volume: $16.7K
Liquidity: $0
Open Interest: $16.8K

Resolves: in 14d 10h

Settlement Timeline

polymarketin 7d 10h · May 28, 2026, 4:00 PM
kalshiin 14d 10h · Jun 4, 2026, 4:00 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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