1. Roger Federer – Roger Federer has salted away 4000 ranking points for 2017 by winning the Australian Open, Indian Wells, and Miami,  91 career titles mean that Federer needs 3 more to tie Ivan Lendl for second place in career titles.  Roger is likely to play a very limited clay court schedule so his position at #1 on my power ranking is not assured heading into the summer.
2. Rafael Nadal – Rafa has banked 2100 ranking points from his Australian Open, Acapulco, and Miami runner-up finishes.  Rafa will likely pick up several titles in the upcoming clay court season.  Change since last ranking +1
3. Stan Wawrinka – The 2016 US Open champion reached the Aussie semifinal round and the final at Indian Wells.  He’d likely take a do-over in Miami, but Stan is in a good spot at this stage of the season.  Change since last ranking -1
4. Nick Kyrgios – Kyrgios played quite well in his run to the semifinal round in Miami. His match with Federer was tense and made me wonder what their Indian Wells clash could have been.  Change since last ranking – not ranked
5. Grigor Dimitrov – Grigor started 2017 with a title, a  semifinal at the Australian Open, and a title.  His results have slowed down.
6. Jo-Wilfried Tsonga – Jo-Wilfried Tsonga has two titles in 2017 and played well in Australia too.
7. Andy Murray – O number one, where art thou? His Dubai title and runner-up finish at Qatar keep Murray afloat despite some strange losses and missing Miami with an elbow issue.  Change since last ranking – 3
8. Novak Djokovic – Missing Miami with an elbow injury has not helped Novak Djokovic’s position on this power ranking.  Clay and a defense of his Roland Garros title may very well be a change that revitalizes his 2017 campaign.  Change since last ranking – 1
9. Fabio Fognini – He is a bit of a madman, but his play in Miami earn him a spot in my top 10.  Change since last ranking – not ranked
    
10. Jack Sock – Sock played well to beat Nishikori and Dimitrov en route to the Indian Wells semifinal round.

Biggest Mover: Andy Murray – 3 

Entered the Poll: Nick Kyrgios and Fabio Fognini

Dropped Out of the Poll: Kei Nishikori, Pablo Cuevas, and Dominic Thiem based upon ranking 11 players last time.