I think this is a misunderstanding of the purpose of prayer, and as such, no such prayer will be answered, in general.
However, we must bear in mind that Christianity is not about rules so much as it is about your relationship with God. Someone who has spend a lot of time building his relationship with God and learning to be obedient to God so as to grow close to Him will have easier access to God in prayer. This is why the Virgin Mary is considered the chief intercessor for Christians, having been the one who bore God and mothered Him, she has perhaps the closest relationship with God. This is seen when even though Christ said 'it is not yet my time', he still chose to supply wine for the wedding at Cana (via the conversion of water into wine). We should avoid thinking of the spiritual life in formulaic terms, as it is much more about your relationship with God and the Saints.
Now, with that disclaimer given, God's primary concern is for your salvation. In fact, this life is given to you for repentance and salvation. As such, a prayer for individual glory may go unanswered simply because you are really asking the wrong thing. But a prayer for spiritual growth and knowledge through some endeavor you undertake (such as a sport) I believe would be answered. If your prayer expresses your desire for communion with God, such a prayer is honored, but a prayer which expresses selfishness and an incorrect outlook on life would go either unanswered or result in a, maybe, unexpected answer (for example, asking for personal victory and glory may result instead in being disqualified, for instance, in an attempt by God to point you away from seeking earthly glory, for such desire corrupts the soul and endangers you to realizing eternal torment as your reward after your earthly life).
I hope this helps. The main takeaway is that God is primarily concerned about the salvation of His people, and will answer prayers within that context.