2020 ATP Surface Speed Ratings

My surface-speed metric uses ace rate--adjusted for the servers and returners in each match--to rate each tournament by surface speed. Thus, the number indirectly accounts for everything that influenced play: temperature, humidity, wind, balls, and of course the physical surface.

Ratings greater than 1 are faster than average. For example, a rating of 1.25 indicates that the players hit 25% more aces than they would have on a tour-average surface.

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DateTournamentSurfaceAce%Surface Speed
03-Feb-2020MontpellierHard13.0%1.46
17-Feb-2020MarseilleHard12.3%1.36
10-Feb-2020RotterdamHard11.0%1.33
02-Nov-2020Paris MastersHard11.7%1.31
26-Oct-2020ViennaHard12.5%1.29
03-Feb-2020CordobaClay6.8%1.29
13-Jan-2020AdelaideHard11.2%1.27
03-Feb-2020PuneHard18.4%1.22
20-Jan-2020Australian OpenHard9.6%1.17
13-Jan-2020AucklandHard12.1%1.15
16-Nov-2020Tour FinalsHard11.2%1.14
09-Nov-2020SofiaHard8.1%1.14
24-Aug-2020Cincinnati MastersHard8.7%1.13
06-Jan-2020Atp CupHard10.4%1.12
12-Oct-2020St PetersburgHard13.3%1.11
19-Oct-2020AntwerpHard8.1%1.10
31-Aug-2020US OpenHard9.9%1.05
24-Feb-2020AcapulcoHard8.2%0.98
06-Jan-2020DohaHard9.0%0.97
10-Feb-2020Buenos AiresClay6.9%0.93
17-Feb-2020Delray BeachHard7.8%0.92
24-Feb-2020DubaiHard8.9%0.88
07-Sep-2020KitzbuhelClay7.9%0.85
17-Feb-2020ATP Rio de JaneiroClay5.1%0.79
19-Oct-2020Cologne 2Hard7.3%0.78
24-Feb-2020SantiagoClay6.0%0.77
26-Oct-2020Nur-SultanHard8.1%0.76
14-Sep-2020Rome MastersClay6.7%0.76
10-Feb-2020New YorkHard6.1%0.67
12-Oct-2020Cologne 1Hard6.4%0.66
28-Sep-2020Roland GarrosClay4.9%0.58
12-Oct-2020SardiniaClay3.6%0.54
21-Sep-2020HamburgClay5.8%0.52