ITF Global Tennis Report 2021

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Page 21 of 247

What we've learnt: performance 22 • ITF Global Tennis Report 2021 HOW PERFORMANCE DATA WAS COLLECTED The data presented in the performance sec ons of each Na onal Associa on report were generated from the rankings and tournament database of the ITF. The inaugural ITF Global Tennis Report 2019 provided performance figures from 2017*, and this edi on of the report presents 2017 data alongside performance data from 2018, 2019 and 2020 to offer a comprehensive view of player development interna onally in the last four years. We established six variables to track the performance of a na on's player development programme or pathway. These measures help describe the rela ve strength and depth of a na on's junior and professional playing base while also capturing the age profile of their professionally ranked players. For the purposes of interpre ng the reports: (i) ranked players are defined as players who competed in at least one match during the calendar year; (ii) junior players are boys and girls who held an ITF Junior World Tennis Tour ranking in the calendar year; and (iii) professional players are men and women who held an ATP or WTA ranking in the calendar year. Where players held both an ITF Junior World Tennis Tour ranking and a professional ranking within the same calendar year, they were counted in both variables. The same applies to players who competed in both junior and professional Grand Slam tournaments in the same year – they were counted in each variable. The performance sec on of each Na onal Associa on report captures the state of player development in three key areas, across the six variables: Ranked players (juniors and professionals) • Total number of players ranked • Players ranked in Top 250 • Players ranked in Top 100 Grand Slam tournament representa on (juniors and professionals) • Main draw representa on • Qualifying draw representa on Professional ranking by age • Professional players in Top 500 by age Performance data are provided in the Na onal Associa on reports for the 41 na ons who contributed par cipa on data. In addi on, performance data for all ITF member Na onal Associa ons that have at least one data point for a par cular variable for 2017, 2018, 2019 and 2020 are available in Appendices D-H. These Appendices give cumula ve distribu ons for each variable. In the Na onal Associa on reports, each na on's performance data for the past four years is ranked rela ve to all the other na ons that have data. For context, the top-ranked na on for each variable per year is stated. The Na onal Associa on reports also give the rela ve year-on-year change in each of these variables, to enable na ons to monitor progress over me. Please refer to 'How to understand the reports' on page 36 for more detail. In the following pages, 2019 data are used to describe the headline observa ons of interna onal junior and professional tennis. At this macro level, these data are considered a more representa ve snapshot of the interna onal game than 2020, owing to the effects of the global Covid-19 pandemic on Grand Slam tournaments and other interna onal events. * The ITF Global Tennis Report 2021 updates any na on's 2017 data affected by changes to player na onality

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