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Court Speed

Court Pace Index measurements for the Grand Slams, Masters 1000s and ATP Finals, 2012–2026 — with ace rates, rally lengths and air density. Updated through the season, sourced from official ATP/TennisTV data.

Tournament’12’13’14’15’16’17’18’19’20’21’22’23’24’25’263yr
Australian OpenAus OpenHard9m9m9m9m9m9m9m9m9m0.9669m0.9569m0.9679m0.9689m0.9649m0.9609m0.965
Indian WellsHard42m42m42m42m42m42m42m42mCOVID0.96042m0.96642m0.97542m0.97742m0.98442m0.95442m0.973
MiamiHard7m7m7m7m7m7m7m7mCOVID0.9647m0.9617m0.9617m0.9687m0.9687m0.9707m0.967
Monte CarloClay19m19m19m19m19m19m19m19mCOVID1.00219m0.98519m0.98619m0.98619m0.99319m0.98419m0.987
MadridClay562m562m562m562m562m562m562m562mCOVID0.909562m0.916562m0.894562m0.920562m0.915562m0.905562m0.909
RomeClay25m25m25m25m25m25m25m25m25m0.97725m0.97325m0.97625m0.96725m0.97425m0.97725m0.973
Roland GarrosClay40m40m40m40m40m40m40m40m40m0.97640m0.98440m0.96940m0.99040m0.97840m0.96640m0.976
WimbledonGrass36m36m36m36m36m36m36m36mCOVID0.98436m0.98636m0.97836m0.98536m0.96736m36m0.977
Canadian OpenCanadaHard188m60m188m60m188m60m188m60mCOVID0.950188m0.96860m0.950188m0.96260m0.953188m60m0.955
CincinnatiHard240m240m240m240m240m240m240m240m240m0.930240m0.938240m0.935240m0.935240m0.922240m240m0.931
US OpenHard2m2m2m2m2m2m2m2m2m0.9612m0.9622m0.9532m0.9682m0.9642m2m0.962
ShanghaiHard4m4m4m4m4m4m4m4mCOVIDCOVIDCOVID0.9814m0.9804m0.9454m4m0.969
ParisHard · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor47m · indoor
ATP FinalsHard · indoor5m · indoor5m · indoor5m · indoor5m · indoor5m · indoor5m · indoor5m · indoor5m · indoor5m · indoor247m · indoor247m · indoor247m · indoor247m · indoor247m · indoor247m · indoor
Air density (RAD)← slower>1.0 Dense0.975–1.0 Denser0.96–0.975 Medium0.94–0.96 Thinner<0.94 Thinfaster → Relative air density: 1.000 = standard sea-level air (1.225 kg/m³ at 15°C) · from temperature, pressure & humidity over actual tournament dates · indoor events excluded · venue change