Court speed index
ATP court speed index 2026: fastest and slowest tournaments
PickFinder Team•Updated:
Montpellier is the fastest court on the ATP calendar with an ace index of 144, where 100 is the ATP average, and 10 aces per player per match. Hamburg is the slowest at 53 and 3.4 aces. Played in the last 3 days: Paris (143), Basel (130), Vienna (98).
- Fastest: Montpellier
- 144
- Slowest: Hamburg
- 53
- ATP aces per match
- 6.5
- ATP hold %
- 79.5%
Played in the last 3 days
ATP baselines by surface
60 ATP tournaments, fastest first
Using court speed index on a prop
Find the event
Look up this week's tournament in the table. Paris is on indoor hard with an ace index of 143.
Read the index
An index of 143 means players hit 43% more aces there than their own usual rates predict. It already allows for who entered.
Apply it to an ace line
A player averaging the ATP norm of 6.5 aces per match works out to about 9.3 at Paris. Compare that with the line, then check the returner on the ace matchups page.
Use the hold number for games
Paris runs +4.4 points against expected hold %. More holds mean fewer breaks and closer sets, which matters for break points, games won and total games. Today's line and the hit rate against it are in PickFinder.
How this is counted
Counts finished singles matches, Nov 2, 2025 to Nov 2, 2026, so each event appears about once. The ace index compares aces hit at an event with aces expected from who served and who returned there. Server and returner strength are fitted together with the events across all ATP matches, tour and lower level, so an entry list full of big servers doesn't make a court look fast. 100 is the ATP average. Hold vs expected does the same for breaks of serve and shows the difference in points of hold %. Aces per match and hold % are raw counts. Aces per match rises in best-of-five events, so those are marked. Retired matches and walkovers are left out. An event needs 15+ finished matches. This measures results, not the court itself: weather, altitude and balls all land in the number. It isn't the ITF court pace rating.
Court speed index FAQ
What is the fastest ATP court?
Montpellier, with an ace index of 144, 10 aces per match and 82.6% hold over 37 matches.
What is the slowest ATP court?
Hamburg, with an ace index of 53, 3.4 aces per match and 77.2% hold over 43 matches.
Which Grand Slam plays fastest?
By ace index: Wimbledon 113, Australian Open 109, US Open 99, French Open 76.
How much do aces change between clay and grass?
ATP players average 4.4 aces per match on clay and 8.4 on grass, with 75.8% and 82.9% hold.
Why does the index differ from the raw ace count?
The raw count depends on who entered. The index compares aces with what those same servers and returners usually produce, so a field of big servers doesn't lift it. Montpellier has a raw index of 154 and an adjusted index of 144.
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