Issue link: http://itf.uberflip.com/i/1169625
34 • ITF Global Tennis Report 2019 CONVERSION RATE (%) The percentage of players who achieved a Top 100 junior ranking (between 1 January 2003 and 31 December 2012) who went on to earn a Top 100 professional ranking (by 31 December 2017). • The percentage of girls who achieved a Top 100 junior ranking and went on to be ranked in the professional Top 100 was higher than the percentage of boys doing the same - 21.1% for girls and 12% for boys. See Fig 35 • Top 100 juniors from Tier 4 na ons were more likely to transi on to the professional Top 100 than Top 100 juniors from other na ons. (See Appendix H page 561 for more detail about ITF Development Eligibility Tiers.) See Fig 36 • Europe and then North America had the highest propor on of Top 100 juniors conver ng to the professional Top 100. See Fig 37 CONVERSION SPEED (WEEKS) The average amount of me that it took players who achieved a Top 100 junior ranking (between 1 January 2003 and 31 December 2012) to earn a Top 100 professional ranking (by 31 December 2017). This is measured in weeks, from first Top 100 junior ranking date un l entering the professional Top 100 for the first me. • On average, girls were able to transi on from the junior Top 100 to the professional Top 100 quicker than boys – it took 222.6 weeks for girls compared to 300.2 weeks for boys. See Fig 38 • Top 100 girls from Africa were the slowest to transi on to the professional Top 100. • Top 100 girls from Europe were more likely to transi on to the professional Top 100, and did so more quickly, than Top 100 girls from other regions. • For boys conver ng from the Top 100 to the professional Top 100, Africa had the lowest conversion rate but the quickest conversion speed. See Fig 37 and 39 Junior to professional ranking conversion 0 5 10 20 25 15 Fig 35. Junior to professional conversion rate (%) Female Male 21.1 12.0 0 5 10 15 25 20 Fig 36. Junior to professional median er conversion rate by ITF Development Eligibility Tier (%) Female Male 21.8 20.8 6.3 0.0 14.8 7.7 0.0 0.0 TIER 4 TIER 3 TIER 2 TIER 1 TIER 4 TIER 3 TIER 2 TIER 1