Live Odds · Updated October 24, 2026

European Open: Jan-Lennard Struff vs Tallon Griekspoor

As of October 24, 2026, 09:28 PM ET, Polymarket traders price European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over at 69.5% in European Open: Jan-Lennard Struff vs Tallon Griekspoor — $56 traded so far.

Last updated October 24, 2026, 09:25 PM ET with live prices from Polymarket. 24h volume: $56.
Leading outcome
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over
70%
A 69.5% price implies roughly a 70-in-100 chance, set by traders risking real money.
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over69.5%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Jan-Lennard Struff68.5%
Bid
63¢
Ask
76¢
Spread
13¢
Trade on Polymarket →
Range since October 24, 2026: 49.0% – 70.0% · Opened at 49.0%

Market facts

Event data
Event
European Open: Jan-Lennard Struff vs Tallon Griekspoor
Category
Tennis, Sports, Games
Scheduled end
November 01, 2026, 10:30 AM ET
Total volume
$56
Volume (24h)
$56
Liquidity
$86.7K
Markets
16
Leading outcome
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over — 69.5%
Resolution source
https://www.atptour.com/en/scores/current

What is the current price?

Momentum & history

The leading outcome, European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over, is priced at 69.5%.

Since October 24, 2026, European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over has traded between 49.0% and 70.0%. It opened at 49.0% and last traded at 70.0%.

Who is favored to win?

Outcomes

European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over is favored at 69.5%.

OutcomePriceImplied probability24h changeVolumeVolume share
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over70¢69.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Jan-Lennard Struff68¢68.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Total Sets: O/U 2.5: Under 2.560¢59.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 10.5: Under55¢54.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 23.5: Over54¢54.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor: Tallon Griekspoor52¢52.5%—$56100.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 8.5: Under52¢52.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 9.5: Under52¢52.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 10.5: Under52¢52.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 8.5: Under52¢51.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 Winner: Tallon Griekspoor51¢51.0%—$00.0%
Completed Match50¢50.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 21.5: Under50¢50.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 22.5: Under50¢50.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 Winner: Jan-Lennard Struff50¢50.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 Winner: Tallon Griekspoor50¢50.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Game Spread +/-0.5: Tallon Griekspoor50¢50.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Game Spread +/-0.5: Jan-Lennard Struff50¢50.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 21.5: Over50¢49.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 22.5: Over50¢49.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 Winner: Jan-Lennard Struff49¢49.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 8.5: Over48¢48.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 8.5: Over48¢48.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 9.5: Over48¢48.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 10.5: Over48¢48.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor: Jan-Lennard Struff48¢47.5%—$56100.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 23.5: Under46¢46.0%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 10.5: Over46¢45.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Total Sets: O/U 2.5: Over 2.540¢40.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Tallon Griekspoor32¢31.5%—$00.0%
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Under30¢30.5%—$00.0%

See the full live book for this market on Polymarket

The leading market's spread is 13¢ (bid 63¢ / ask 76¢) — a tighter spread means cheaper round-trip trading.

How much has been traded?

Volume

$56 has been traded on this event in total, $56 of it in the last 24 hours, across 16 markets.

When does this market resolve?

Rules

This market is scheduled to end November 01, 2026, 10:30 AM ET.

This market refers to the tennis match between Jan-Lennard Struff and Tallon Griekspoor in the European Open, originally scheduled for October 25, 2026 at 11:30AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game. If the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before the first set is completed, or if the first set has not been completed by November 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so "Over" would resolve as the winning outcome. … (condensed)

Resolution source: https://www.atptour.com/en/scores/current

What are the latest trades?

Tape
BUY Tallon Griekspoor — $14 at 53.0%BUY Tallon Griekspoor — $13 at 53.0%BUY Tallon Griekspoor — $2 at 53.0%
TimeOutcomeSidePriceSize
Oct 24, 09:13 PM ETTallon GriekspoorBUY53.0%$14
Oct 24, 08:29 PM ETTallon GriekspoorBUY53.0%$2
Oct 24, 07:51 PM ETJan-Lennard StruffBUY48.0%$1
Oct 24, 07:18 PM ETTallon GriekspoorBUY53.0%$13

Related markets

More Tennis

Fort Worth: Jenson Brooksby vs Gabriel Debru

Fort Worth: Jenson Brooksby vs Gabriel Debru Set 1 O/U 8.5: Over 100.0% · 24H VOL $521.4K

Fort Worth: Alexander Maarten Jong vs Darwin Blanch

Fort Worth: Alexander Maarten Jong vs Darwin Blanch: Darwin Blanch 100.0% · 24H VOL $54.6K

Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova

Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under 75.0% · 24H VOL $20.8K

Frequently asked questions

FAQ

What are the odds of European Open: Jan-Lennard Struff vs Tallon Griekspoor?

As of October 24, 2026, 09:25 PM ET, the leading outcome is European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over at 69.5%. Next is European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Jan-Lennard Struff at 68.5%. See the live book on Polymarket: https://polymarket.com/event/atp-struff-grieksp-2026-10-25?via=bro

How much money has been traded on European Open: Jan-Lennard Struff vs Tallon Griekspoor?

$56 in total volume, with $56 traded in the last 24 hours across 16 markets.

When does European Open: Jan-Lennard Struff vs Tallon Griekspoor end?

The market is scheduled to end November 01, 2026, 10:30 AM ET. It resolves based on https://www.atptour.com/en/scores/current.

What is the most likely outcome of European Open: Jan-Lennard Struff vs Tallon Griekspoor, according to Polymarket traders?

European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over, priced at 69.5% as of October 24, 2026, 09:25 PM ET. Prices are implied probabilities backed by real-money trading.

Browse the live odds index, today's biggest movers, and Whale Watch for the largest positions.

⚠️ Not financial advice: odds swing hard on news. Never bet money you can't afford to lose, and always read a market's resolution rules before trading.

Trade it on Polymarket

Prices move fast. Check the live book, read the resolution rules, and size small while you learn.

Sign Up on Polymarket

New here? Start with the complete beginner guide, then run any stake through the payout calculator before you trade.