Court speed index
ATP Challenger court speed index 2026: fastest and slowest tournaments
PickFinder Team•Updated:
Guangzhou Nansha is the fastest court on the ATP Challenger calendar with an ace index of 196, where 100 is the ATP Challenger average, and 10.2 aces per player per match. Menorca is the slowest at 30 and 1.1 aces. Played in the last 3 days: Brest (153), Taipei (135), Sioux Falls (125), Ningbo (117), Bratislava II (117), Seoul (103), Guayaquil (81), Villa Maria (55).
- Fastest: Guangzhou Nansha
- 196
- Slowest: Menorca
- 30
- ATP Challenger aces per match
- 4.1
- ATP Challenger hold %
- 73.5%
Played in the last 3 days
- BrestIndoor hard, index 153, 6.6 aces
- TaipeiIndoor hard, index 135, 6.5 aces
- Sioux FallsHard, index 125, 5.6 aces
- NingboHard, index 117, 5.5 aces
- Bratislava IIIndoor hard, index 117, 5.6 aces
- SeoulHard, index 103, 4.9 aces
- GuayaquilClay, index 81, 2.5 aces
- Villa MariaClay, index 55, 1.6 aces
ATP Challenger baselines by surface
243 ATP Challenger tournaments, fastest first
Using court speed index on a prop
Find the event
Look up this week's tournament in the table. Brest is on indoor hard with an ace index of 153.
Read the index
An index of 153 means players hit 53% 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 Challenger norm of 4.1 aces per match works out to about 6.3 at Brest. Compare that with the line, then check the returner on the ace matchups page.
Use the hold number for games
Brest runs +8.0 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 Challenger 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 Challenger court?
Guangzhou Nansha, with an ace index of 196, 10.2 aces per match and 84.3% hold over 47 matches.
What is the slowest ATP Challenger court?
Menorca, with an ace index of 30, 1.1 aces per match and 62.3% hold over 45 matches.
How much do aces change between clay and grass?
ATP Challenger players average 3 aces per match on clay and 5.6 on grass, with 71.1% and 79.7% 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. Guangzhou Nansha has a raw index of 239 and an adjusted index of 196.
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