2019 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
23-Sep-2019ChengduHard14.8%1.56
24-Jun-2019AntalyaGrass14.6%1.48
11-Nov-2019Tour FinalsHard11.7%1.30
18-Feb-2019MarseilleHard11.7%1.29
05-Nov-2019NextGen FinalsHard9.5%1.27
15-Jul-2019NewportGrass12.7%1.26
14-Jan-2019Australian OpenHard12.9%1.26
31-Dec-2018BrisbaneHard13.3%1.26
22-Jul-2019AtlantaHard14.3%1.24
07-Oct-2019Shanghai MastersHard13.0%1.24
10-Jun-2019StuttgartGrass14.5%1.23
17-Jun-2019HalleGrass12.8%1.23
25-Feb-2019Sao PauloClay9.8%1.22
04-Feb-2019SofiaHard11.1%1.21
16-Sep-2019MetzHard13.5%1.20
14-Oct-2019AntwerpHard11.2%1.19
28-Oct-2019Paris MastersHard11.9%1.19
04-Feb-2019MontpellierHard13.4%1.17
11-Feb-2019New YorkHard17.0%1.15
21-Oct-2019ViennaHard11.4%1.15
19-Aug-2019Winston-SalemHard12.1%1.15
21-Oct-2019BaselHard14.2%1.13
30-Sep-2019BeijingHard11.6%1.11
29-Jul-2019WashingtonHard15.5%1.11
14-Oct-2019MoscowHard13.5%1.11
18-Feb-2019Delray BeachHard13.9%1.10
31-Dec-2018DohaHard10.0%1.10
30-Sep-2019TokyoHard11.6%1.08
17-Jun-2019Queen's ClubGrass12.8%1.07
16-Sep-2019St. PetersburgHard8.4%1.07
07-Jan-2019AucklandHard10.7%1.06
14-Oct-2019StockholmHard11.2%1.06
31-Dec-2018PuneHard14.8%1.05
12-Aug-2019Cincinnati MastersHard11.6%1.04
05-Aug-2019Canada MastersHard10.8%1.03
25-Feb-2019DubaiHard8.4%1.02
24-Jun-2019EastbourneGrass13.2%0.99
01-Jul-2019WimbledonGrass10.5%0.99
07-Jan-2019SydneyHard9.3%0.98
23-Sep-2019ZhuhaiHard6.9%0.97
10-Jun-2019s HertogenboschGrass10.1%0.97
26-Aug-2019US OpenHard10.2%0.96
08-Apr-2019MarrakechClay8.3%0.96
04-Feb-2019CordobaClay6.9%0.94
11-Feb-2019RotterdamHard8.0%0.90
20-May-2019LyonClay9.9%0.90
22-Jul-2019GstaadClay5.6%0.88
25-Feb-2019AcapulcoHard11.1%0.86
18-Mar-2019Miami MastersHard9.5%0.85
29-Jul-2019Los CabosHard6.5%0.85
20-May-2019GenevaClay6.6%0.80
15-Jul-2019BastadClay6.9%0.80
29-Jul-2019KitzbuhelClay6.3%0.76
04-Mar-2019Indian Wells MastersHard7.6%0.76
22-Jul-2019HamburgClay7.5%0.74
08-Apr-2019HoustonClay9.2%0.73
06-May-2019Madrid MastersClay7.0%0.71
27-May-2019Roland GarrosClay7.0%0.70
13-May-2019Rome MastersClay7.0%0.68
29-Apr-2019MunichClay7.0%0.67
15-Jul-2019UmagClay5.6%0.65
18-Feb-2019Rio de JaneiroClay5.9%0.62
22-Apr-2019BudapestClay7.0%0.62
22-Apr-2019BarcelonaClay5.6%0.59
29-Apr-2019EstorilClay4.7%0.58
11-Feb-2019Buenos AiresClay3.9%0.52
15-Apr-2019Monte Carlo MastersClay4.7%0.50