| Most improved players during the past 12 months | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rank | last/PR | old/PR | PR/inc | Name | Rank | last/PR | old/PR | PR/inc | Name | Rank | last/PR | old/PR | PR/inc | Name |
| 1 | 52.32 | 48.08 | 4.25 | Betts, Earle | 4 | 60.91 | 58.70 | 2.21 | Ruehl, Elizabeth | 7 | 60.64 | 60.42 | 0.22 | Lane, Michael |
| 2 | 49.33 | 46.63 | 2.70 | Adcock, Evelyn | 5 | 54.80 | 53.20 | 1.60 | Morton, Nancy | 8 | 51.58 | 51.40 | 0.18 | Drevo, Jane |
| 3 | 46.74 | 44.42 | 2.32 | Garner, Susan | 6 | 54.11 | 53.59 | 0.52 | Layman, Alice | |||||