1999 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.

Click here for the most recent ratings, or choose another season:

Date	Tournament	Surface	Ace%	Surface Speed
15-Feb-1999	Memphis	Hard	14.8%	1.51
08-Nov-1999	Moscow	Carpet	14.1%	1.50
27-Sep-1999	Toulouse	Hard	14.3%	1.50
15-Feb-1999	Rotterdam	Carpet	14.6%	1.40
07-Jun-1999	Halle	Grass	12.7%	1.36
04-Jan-1999	Adelaide	Hard	11.2%	1.35
08-Feb-1999	St. Petersburg	Carpet	13.6%	1.33
04-Oct-1999	Basel	Carpet	13.4%	1.33
09-Aug-1999	Cincinnati Masters	Hard	12.2%	1.32
22-Feb-1999	London	Carpet	15.4%	1.31
14-Jun-1999	s Hertogenbosch	Grass	11.0%	1.29
01-Nov-1999	Paris Masters	Carpet	11.1%	1.27
25-Oct-1999	Stuttgart Masters	Hard	12.7%	1.21
11-Oct-1999	Vienna	Hard	12.9%	1.21
14-Jun-1999	Nottingham	Grass	10.7%	1.19
08-Nov-1999	Stockholm	Hard	11.7%	1.16
02-Aug-1999	Canada Masters	Hard	11.2%	1.15
23-Aug-1999	Boston	Hard	9.0%	1.14
23-Aug-1999	Long Island	Hard	11.6%	1.14
11-Jan-1999	Auckland	Hard	8.1%	1.12
26-Jul-1999	Los Angeles	Hard	12.2%	1.12
30-Aug-1999	US Open	Hard	10.2%	1.10
18-Oct-1999	Lyon	Carpet	10.1%	1.09
01-Feb-1999	Marseille	Hard	9.2%	1.09
01-Mar-1999	Scottsdale	Hard	10.0%	1.07
07-Jun-1999	Merano	Clay	6.7%	1.04
13-Sep-1999	Tashkent	Hard	7.2%	1.04
16-Aug-1999	Washington	Hard	9.7%	1.03
08-Feb-1999	San Jose	Hard	9.4%	1.03
08-Mar-1999	Indian Wells Masters	Hard	10.5%	1.02
16-Aug-1999	Indianapolis	Hard	8.7%	1.02
11-Oct-1999	Singapore	Hard	8.4%	1.02
07-Jun-1999	Queen's Club	Grass	10.2%	1.01
21-Jun-1999	Wimbledon	Grass	9.2%	1.00
05-Apr-1999	Hong Kong	Hard	9.1%	0.99
12-Apr-1999	Tokyo	Hard	9.2%	0.97
11-Jan-1999	Sydney	Hard	9.8%	0.97
13-Sep-1999	Mallorca	Clay	6.2%	0.96
01-Mar-1999	Copenhagen	Carpet	7.9%	0.96
19-Jul-1999	Stuttgart Outdoor	Clay	7.1%	0.96
18-Jan-1999	Australian Open	Hard	8.0%	0.94
15-Mar-1999	Miami Masters	Hard	9.1%	0.94
04-Jan-1999	Doha	Hard	7.3%	0.94
08-Feb-1999	Dubai	Hard	8.5%	0.94
22-Nov-1999	Tour Finals	Hard	13.9%	0.93
26-Apr-1999	Munich	Clay	6.8%	0.92
03-May-1999	Delray Beach	Clay	5.6%	0.92
19-Apr-1999	Orlando	Clay	6.2%	0.91
02-Aug-1999	Amsterdam	Clay	6.1%	0.87
05-Jul-1999	Gstaad	Clay	7.0%	0.86
26-Apr-1999	Prague	Clay	5.9%	0.85
26-Apr-1999	Atlanta	Clay	5.5%	0.84
24-May-1999	Roland Garros	Clay	6.8%	0.82
26-Jul-1999	Kitzbuhel	Clay	5.6%	0.82
12-Apr-1999	Barcelona	Clay	5.5%	0.82
04-Oct-1999	Shanghai	Hard	6.0%	0.80
05-Apr-1999	Chennai	Hard	5.1%	0.79
10-May-1999	Rome Masters	Clay	7.1%	0.79
05-Jul-1999	Newport	Grass	9.2%	0.78
17-May-1999	St. Poelten	Clay	5.2%	0.77
09-Aug-1999	San Marino	Clay	5.2%	0.77
26-Jul-1999	Umag	Clay	5.3%	0.73
05-Jul-1999	Bastad	Clay	5.1%	0.73
05-Apr-1999	Estoril	Clay	5.6%	0.70
19-Apr-1999	Monte Carlo Masters	Clay	6.0%	0.69
27-Sep-1999	Bucharest	Clay	4.7%	0.69
22-Mar-1999	Casablanca	Clay	3.8%	0.68
04-Oct-1999	Palermo	Clay	3.9%	0.64
03-May-1999	Hamburg Masters	Clay	5.0%	0.63
16-May-1999	Dusseldorf	Clay	7.0%	0.62
13-Sep-1999	Bournemouth	Clay	5.9%	0.61