Year IX, Artícle[1], No. 87

July 18, 2019

by Rubén A. Báez[2]

Full statistical report in pdf click here


(GPI: General Performance Index): "It is an in-dex that measures the performance that a ten-nis player has had in a given period of time." This index, not shown here, is used to make the "General Performance Ranking© or GPI Ranking© ".
The following tournaments, which correspond to the month of June, have been included for the determination of the Top 30 of the General Performance Ranking©: All the tournaments analyzed here are on grass.
  • Libema Open - ATP 250.
  • Mercedes Cup - ATP 250.
  • Fever-Tree Championships - ATP 500.
  • Noventi Open - ATP 500.
  • Turkish Airlines Open - ATP 250.
  • Nature Valley International - ATP 250.
The ATP Ranking of the players, which has been considered for this report, is on July 1st, 2019.

The performances of the Top 30 of the GPI Ranking© in the 6 above mentioned tourna-ments, which started in June, are shown in ta-ble 3, where it shows up to the round the play-ers have reached in the tournaments. On the other hand, the 104 players who participated in those 6 tournaments and who compound the statistic sample that has been considered for the statistical calculations, we reiterate, only the 30 with the best performance are ex-posed in this report.
It can be seen that the Top 10 of the ATP Ranking only appear Roger Federer (3), Al-exander Zverev (5) and Stefanos Tsitsipas (6) in the Top 30 of the GPI Ranking© for the month of June (Table 1).
We highlight the June podium formed by, Gilles Simon (FRA), Matteo Berrettini (ITA) and David Goffin (BEL) in positions 1, 2 and 3 of the GPI Ranking©, respectively.
Other players outstanding in the TOP 10 of the GPI Ranking© are: Taylor Fritz (4). Pierre-Hugues Herbert (5), Felix Auger-Aliassime (6), Jordan Thompson (7), Miomir Kecmanovic (8), Adrian Mannarino (9) and Lorenzo Sonego (10).

As it can be observed, in the previous para-graphs (see Table 1), none of the players that are part of the Top 10 of the GPI Ranking© of the month of June are Top 10 of the ATP Ranking. In addition, only 3 Top 10 of the ATP Ranking are included in the Top 30 of the GPI Ranking©, namely, Roger Federer (13), Stefanos Tsitsipas (27) and Alexander Zverev (29). Moreover, only 11 Top 30 of the ATP Ranking are included in the Top 30 of the GPI Ranking© (please, see table 2 to ver-ify).
About the six tournaments on grass mentioned and included as part of this report for the month of June, four were won by players whom are not belong to the Top 10 or in the Top 20 of the ATP Ranking (table 3). Only Roger Federer (3) has been able to capture a title at the only tournament that he played on grass in June, the Noventi Open with venue in Halle, Alemania. The other is the Top 20, Matteo Berrettini (20), who was crowned in Stuttgart, Alemania defeating the young Cana-dian Felix Auger-Aliassime in the final of the Mercedes Cup by 6-4, 7-6 (11). The others two Top 10 of the ATP have had a poor per-formance in the grass tournaments previous Wimbledon, I am referring to Stefanos Tsitsi-pas and Alexander Zverev (table 3).
Table 3 shows until which round the Top 30 of the GPI Ranking© arrived in the month of June.
It is interesting to take a glance to table 4, which shows the ratio of the won matches over the total played matches in the six grass tour-naments encompass by this report. This table 4 is led by Roger Federer, with a ratio of 100% of won matches over Total played matches (5/5). According to the data in this report, Stefanos Tsitsipas and Alexander Zverev have only obtained 50%, that is to say, they won half of the matches they have played. Very scarcely performance of the Top 10 of the ATP Ranking in these six tournaments on grass previous to Wimbledon. We´ll see if the Top 10, 20 and 30 improve their performance in the next report, where the Wimbledon data will be already available.

Full statistical report in pdf click here

[1] Report elaboration based on data from official Websites:

[2] National Tennis Coach (Argentine Tennis Association), Bachelor of Business Administration, Certified Public Accountant, Post grades of Finance Management and Capital Markets, Master of Business Administration (IAE Business School, Austral University, Buenos Aires, Argentina).



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