tennisabstract.com beta

On the ATP and Challenger tours, tournament strength varies wildly, even among events with similar prize money and ranking points. This report allows you to compare field quality across tournaments, using a technique suggested by Carl Bialik.

The fields such as "wp(50)" refer to the chance that the 50th-ranked player in would have won the event, while "pts(50)" shows the 50th-ranked player's "expected points," which takes into account the ATP ranking points awarded to winners.

For more on the methodology, here is the article in which I introduced this approach. Click the column headers to sort, and shift-click to sort by multiple columns.

Updated weekly. Last update: 2013-02-18

Date	Event	Pts	Draw	Surface	Rk	Top Seed	Rk	Champ	wp(10)	epts(10)	wp(50)	epts(50)
2012-07-30	Washington	500	32	Hard	15	Mardy Fish	25	Alexandr Dolgopolov	19.0%	169	3.9%	72
2012-04-15	Monte Carlo Masters	1000	56	Clay	1	Novak Djokovic	2	Rafael Nadal	2.6%	190	0.0%	40
2012-07-16	Hamburg	500	32	Clay	10	Nicolas Almagro	14	Juan Monaco	22.1%	192	1.7%	51
2012-05-13	Rome Masters	1000	56	Clay	1	Novak Djokovic	3	Rafael Nadal	1.9%	171	0.0%	34
2012-07-25	London Olympics	750	64	Grass	1	Roger Federer	4	Andy Murray	1.8%	87	0.1%	34
2012-04-23	Bucharest	250	28	Clay	12	Gilles Simon	12	Gilles Simon	37.7%	139	3.6%	36
2012-07-16	Gstaad	250	28	Clay	8	Janko Tipsarevic	60	Thomaz Bellucci	26.3%	121	1.6%	27
2012-07-09	Newport	250	32	Grass	11	John Isner	11	John Isner	17.4%	80	4.2%	39
2012-07-09	Bastad	250	28	Clay	5	David Ferrer	5	David Ferrer	28.8%	134	2.9%	39
2012-06-11	Queen's Club	250	56	Grass	4	Andy Murray	25	Marin Cilic	8.2%	59	0.8%	17
2012-07-22	Kitzbuhel	250	28	Clay	23	Philipp Kohlschreiber	42	Robin Haase	43.9%	151	6.9%	49
2012-04-23	Barcelona	500	56	Clay	2	Rafael Nadal	2	Rafael Nadal	3.6%	86	0.2%	27
2012-08-12	Cincinnati Masters	1000	56	Hard	1	Roger Federer	1	Roger Federer	2.6%	171	0.1%	43
2012-07-23	Los Angeles	250	28	Hard	50	Benoit Paire	57	Sam Querrey	31.4%	122	11.5%	77
2012-08-06	Canada Masters	1000	48	Hard	2	Novak Djokovic	2	Novak Djokovic	2.8%	160	0.1%	46
2013-02-11	San Jose	250	28	Hard	13	Milos Raonic	13	Milos Raonic	18.7%	101	1.4%	22
2012-12-31	Chennai	250	28	Hard	6	Tomas Berdych	9	Janko Tipsarevic	20.6%	110	2.4%	34
2012-06-11	Halle	250	28	Grass	2	Rafael Nadal	87	Tommy Haas	6.5%	74	0.5%	20
2012-02-20	Buenos Aires	250	32	Clay	5	David Ferrer	5	David Ferrer	16.1%	87	1.0%	22
2012-04-30	Munich	250	28	Clay	5	Jo Wilfried Tsonga	34	Philipp Kohlschreiber	24.6%	115	1.9%	28
2012-07-09	Umag	250	28	Clay	16	Fernando Verdasco	15	Marin Cilic	35.6%	138	3.1%	35
2012-10-15	Moscow	250	28	Hard	21	Alexandr Dolgopolov	25	Andreas Seppi	33.0%	127	5.3%	42
2012-06-25	Wimbledon	2000	128	Grass	1	Novak Djokovic	3	Roger Federer	0.9%	181	0.0%	56
2012-10-15	Vienna	250	28	Hard	8	Juan Martin Del Potro	8	Juan Martin Del Potro	21.3%	108	2.2%	33
2012-06-17	s-Hertogenbosch	250	32	Grass	6	David Ferrer	6	David Ferrer	16.8%	81	3.8%	36
2013-02-04	Zagreb	250	28	Hard	15	Marin Cilic	15	Marin Cilic	25.8%	113	2.9%	31
2012-10-01	Tokyo	500	32	Hard	3	Andy Murray	17	Kei Nishikori	6.9%	102	0.9%	42
2012-10-22	Basel	500	32	Hard	1	Roger Federer	8	Juan Martin Del Potro	8.9%	135	0.9%	46
2012-07-09	Stuttgart	250	28	Clay	8	Janko Tipsarevic	8	Janko Tipsarevic	29.3%	127	2.4%	31
2013-02-04	Montpellier	250	28	Hard	9	Janko Tipsarevic	10	Richard Gasquet	23.1%	109	2.2%	26
2012-04-30	Estoril	250	28	Clay	12	Juan Martin Del Potro	12	Juan Martin Del Potro	23.1%	119	2.4%	38
2012-05-06	Madrid Masters	1000	56	Clay	1	Novak Djokovic	3	Roger Federer	0.7%	88	0.0%	37
2013-02-04	Santiago	250	28	Clay	4	Rafael Nadal	85	Horacio Zeballos	15.1%	118	2.3%	59
2012-10-15	Stockholm	250	28	Hard	7	Jo Wilfried Tsonga	6	Tomas Berdych	17.1%	100	1.5%	27
2013-02-11	Sao Paulo	250	28	Clay	4	Rafael Nadal	4	Rafael Nadal	13.4%	109	1.7%	55
2013-01-07	Sydney	250	28	Hard	13	John Isner	64	Bernard Tomic	20.7%	100	2.0%	25
2012-02-27	Acapulco	500	32	Clay	6	David Ferrer	6	David Ferrer	12.6%	149	0.9%	43
2012-12-30	Brisbane	250	28	Hard	3	Andy Murray	3	Andy Murray	11.3%	86	0.9%	23
2012-02-20	Marseille	250	28	Hard	6	Jo Wilfried Tsonga	10	Juan Martin Del Potro	17.1%	100	1.0%	23
2012-02-27	Dubai	500	32	Hard	1	Novak Djokovic	3	Roger Federer	3.7%	94	0.2%	30
2012-02-27	Delray Beach	250	32	Hard	11	John Isner	36	Kevin Anderson	17.0%	79	2.2%	26
2012-04-09	Houston	250	28	Clay	9	Mardy Fish	16	Juan Monaco	18.2%	89	1.5%	28
2013-01-07	Auckland	250	28	Hard	5	David Ferrer	5	David Ferrer	15.8%	96	1.1%	20
2012-05-27	Roland Garros	2000	128	Clay	1	Novak Djokovic	2	Rafael Nadal	0.9%	249	0.0%	42
2012-10-07	Shanghai Masters	1000	56	Hard	1	Roger Federer	2	Novak Djokovic	3.0%	180	0.1%	46
2012-07-16	Atlanta	250	28	Hard	11	John Isner	27	Andy Roddick	20.2%	105	2.8%	36
2012-09-24	Bangkok	250	28	Hard	9	Janko Tipsarevic	14	Richard Gasquet	22.7%	107	2.3%	29
2012-10-29	Paris Masters	1000	48	Hard	2	Novak Djokovic	5	David Ferrer	2.6%	157	0.1%	43
2012-08-19	Winston-Salem	250	48	Hard	6	Jo Wilfried Tsonga	10	John Isner	11.0%	66	1.5%	29
2013-01-14	Australian Open	2000	128	Hard	1	Novak Djokovic	1	Novak Djokovic	0.8%	195	0.0%	54
2012-12-31	Doha	250	32	Hard	5	David Ferrer	10	Richard Gasquet	14.3%	79	2.1%	29
2012-09-17	Metz	250	28	Hard	7	Jo Wilfried Tsonga	7	Jo Wilfried Tsonga	22.3%	108	2.3%	30
2012-09-24	Kuala Lumpur	250	28	Hard	5	David Ferrer	11	Juan Monaco	20.9%	109	2.2%	31
2012-04-30	Belgrade	250	28	Clay	38	Pablo Andujar	46	Andreas Seppi	42.9%	146	5.0%	42
2013-02-11	Rotterdam	500	32	Hard	2	Roger Federer	7	Juan Martin Del Potro	6.7%	114	0.7%	40
2012-10-21	Valencia	500	32	Hard	5	David Ferrer	5	David Ferrer	8.1%	105	0.9%	41
2012-02-20	Memphis	500	32	Hard	13	John Isner	38	Jurgen Melzer	17.8%	162	2.2%	53
2012-03-21	Miami Masters	1000	96	Hard	1	Novak Djokovic	1	Novak Djokovic	1.8%	119	0.0%	29
2012-03-08	Indian Wells Masters	1000	96	Hard	1	Novak Djokovic	3	Roger Federer	2.2%	134	0.0%	31
2012-05-20	Nice	250	28	Clay	11	John Isner	14	Nicolas Almagro	26.4%	123	1.4%	29
2012-09-17	St. Petersburg	250	32	Hard	29	Mikhail Youzhny	45	Martin Klizan	30.9%	113	6.5%	45
2012-10-01	Beijing	500	32	Hard	2	Novak Djokovic	2	Novak Djokovic	6.2%	109	0.6%	40
2012-06-18	Eastbourne	250	28	Grass	19	Richard Gasquet	33	Andy Roddick	12.9%	65	2.8%	30
2012-08-27	US Open	2000	128	Hard	1	Roger Federer	4	Andy Murray	1.7%	255	0.0%	54
2012-04-09	Casablanca	250	28	Clay	20	Florian Mayer	58	Pablo Andujar	38.9%	139	4.8%	40