Just to underpin the above.

As a general guide, on average, over a long period, a fast trainer at 4* will gain nearly 8% sp per 1% condition; at 5* will gain around 6.5% sp per condition.

Since all players gain 40% condition per day, if no condition is wasted, you can expect a fast trainer on average to gain over 3sp per day at 4* and just under 2.5sp at 5*. This is without the bonus of MoM or booster use. (Boosters will contribute around 1.2 and 1.0 at 4 and 5 stars respectively.)

(I've rounded numbers to make it easier.)

Warning: training gains can go down as well as up, subject to status, not available ouside the UK....blah....and all the other usual disclaimers....blah....imo, afaik.