I think it's cyclic...The late sixties in particular, was absolutely about the teen and younger generation overcoming the older generation, now the 'zeitgeist' is swung to the other side of the pendulum. The sportsmen pattern this
The 'zeitgeist', is not a natural outcropping of the 'spirit' of humanity. A large part of it is manufactured from the apex of the pyramid and then disseminated via the media, who make it look like a 'natural' outcropping.
I also see a big connection between what we are seeing right now and what we saw in the early OE until Connors and Co. finally broke through.
I have all the majors from 1969 through this year and the exact ages of the winners. My list is not a knew idea, but it is more complete than something I saw a few years back. The norm is for peaks hitting right around age 25, not the full year, but rather the beginning of that year. So figure players should hit their peak right around then, and the fact that Laver win his 2nd grand slam at age 30-31 does not change that overall picture. It also, by the way, shows that he won his amateur GS at that same expected age, 24-25, and that's what made the pros of that time so different. Each of those pros had to break in AFTER getting to the top of the world in amateurs, true of Kramer, Gonzalez, Rosewall, Hoad, Laver and so on. Then to continue leaving their mark they had to do it all over again in 68. It took a few years for the former amateurs to catch up.
I think what we are seeing now is different. There are cycles, for whatever reason, and at the moment we probably have an unusual amount of strength in older veterans. But if this is all it is, it will swing back, and we will get back to seeing people peak at 24-25. I don't think that will happen. I think in the future peaks will be later, and for the simple reason that experience is the ultimate trump in competition of aging does not reduce the physical part of competition to the point where experience can't compensate for decreasing physical dominance.
I don't have sufficient stats to look at the breakdown of service and return earlier than 1990, and I'm too lazy to try to analyze matches by counting points and games. But I do know that the trend is to win more and more games on serve, less and less on return. The reason is that there is a practical max of what % of games the best can win, on any surface, in a great year, and normally that is around 60% and not much higher.
You would expect veterans to keep up service skills longest, and we see that with guys like Sampras and Federer, who continued to serve very well after age 30. Most likely the exact same thing was true of guys like Pancho Gonzalez, but I do not have stats to support that.
However, if aging players lose a couple percentage points on return but gain them serving, the end result is no loss of success.
Here is what absolutely does not make sense, going by what we expected earlier.
Federer won a higher % of return games on HC in 2015 than all but two years- 2006 and 2005. 2015 was his 2nd best year, ever, for winning games serving. It was his 2nd best year ever for winning total games, and comparing 2004, 2005 and 2015 is so close, they are different by a few 100ths of one percent.
If other aging players can do the same, the young guys don't have a chance.
Djokovic is similar, but in a way that reflects more of what we might expect. He won 41% of return games in 2011, which is so freaking high it is just stupid. But he won around 85% of service games, so as his return stats went down, his service stats went up. His best year serving games, stats, was 2013, but for winning all games, 2011 was highest (no surprise there), but 2015 was not much down.
This is far more expected. We don't know what he is doing yet this year, because the first half of the year knocked down his results so far. But I would expect him to never equal 2011 in return, or come close. However, if he gets his service game up to where it was at that peak, and keeps return in range, he's going to win more majors.
Now let's look at Murray, same thing, HC: His second best year for winning games on return was 2016. For winning all games he was in a virtual tie with himself in 2009. And his serving was better in 2009, but return better in 2016.
If you're interesting, I'll tell you how guys like Agassi and Sampras compare, but you probably know already what the results are going to be.
What we are seeing now JUST DID NOT HAPPEN IN THE PAST.