The previous FIFA formula was over four years. The new one is more of an Elo system which started after the 2018 World Cup.
Now each game changes the rankings, and games never drop out or become less valuable. Here are the Top 10 in Concacaf in the June 2023 FIFA Rankings: 11. USA (up 2) 14. Mexico (up 1) 42. Costa Rica (down 3) 45. Canada (up 2) 57. Panama (up 1) 63. Jamaica (even) 76. El Salvador (down 1) 81. Honduras (down 1) 87. Haiti (even) 88. Curacao (even) Trinidad and Tobago in 101st is the other Concacaf team in the top half. 24 of 35 Concacaf teams are in the bottom half. 18 teams played at least one game that was added to the June 2023 rankings. Men's Ranking (fifa.com) USA, Canada, St. Kitts and Nevis, Puerto Rico, Mexico, Guyana, and Trinidad and Tobago gained at least 5 points. Costa Rica lost 12.82 points, Jamaica lost 14.04 points, and no other team lost at least 5 points. USA peaked in fourth in 2006 and then fell after that World Cup. From 2007 to now, USA's best rank was 10th in 2021. USA is 30.11 behind 10th place Spain. Gaining that much in one month is hard, but maybe winning the Gold Cup will be enough to get USA in the top ten.
Looks like if they win the Gold Cup unbeaten they could go top 8. http://www.football-rankings.info/2023/06/fifa-ranking-july-2023-probable-ranking.html?m=1
That site was made before the Nations League Semifinals, and has USA finishing July with 55.13 more points than they have now. In the FIFA Rankings, the most difficult opponents for USA are Canada, Panama, and Mexico. Panama is 1 spot above Qatar, so it makes a tiny difference which one of them advances. Beating Canada would gain 12.05, beating Panama would gain 10.35, and beating Mexico would gain 18.69, for a total of 41.09, which is 14.04 fewer than that site projects, which would put USA tenth. I hope I did my calculations correctly.
Here are the Top 10 in Concacaf in the July 2023 FIFA Rankings: 11. USA (even) 12. Mexico (up 2) 43. Canada (up 2, up 1 in Concacaf) 45. Panama (up 12, up 1 in Concacaf) 46. Costa Rica (down 4, down 2 in Concacaf) 58. Jamaica (up 5) 75. El Salvador (up 1) 79. Honduras (up 2) 87. Haiti (even) 88. Curacao (even) Costa Rica is not in Concacaf's top four for the first time since they were sixth in March 2013. For part of 2014 to 2017, Costa Rica was first in Concacaf. 11 of 35 Concacaf teams (31.4 percent) are in the top half, with Trinidad and Tobago being last one in 102nd. Panama had the spots and points gained in the world. USA gained 1.14 from their disappointing Gold Cup, while champion Mexico gained 26.40 to move 8.89 behind USA. St. Kitts and Nevis had the most spots and points lost in the world. Three Oceanian teams dropped out due to inactivity, so the 208 ranked teams are the fewest in a while. Of the 62 games played between the June and July Rankings, the only games other than the Gold Cup were a tournament for part of Asia and a tournament for part of Africa, both of which count as friendlies in the FIFA Rankings.
FIFA rankings love El Salvador while CONCACAF rankings love Guatemala. El Salvador is #7 per FIFA and #11 per CONCACAF Guatemala is #12 per FIFA and #8 per CONCACAF
Concacaf rankings still gaga over Guatemala's victories against Guadeloupe and French Guiana, while FIFA swears it never happened
This is how I rank CONCACAF teams at the moment as a neutral observer 1. USA _______________Significant gap 2. Mexico 3. Canada 4. Panama _______________Significant gap 5. Costa Rica 6. Jamaica 7. El Salvador 8. Suriname 9. Honduras 10. Haiti 11. Guatemala 12. Curaçao Again significant gap and about the rest I don't know.
I dunno about those gaps, though... Mexico might, might just be done shooting itself in the foot if it lets Lozano continue... and Costa Rica bit the bullet and got rid of Luis Fernando Suárez, so we'll see if they can get back on track as well.
I realize ELO are different; but, after the Mexico and USA Losses, Panama wins, and Canada with a game pending; Panama and Canada are within 1 match week result of moving into 1st in the region. The ELO Ratings: 1. Mexico 1792 2. USA 1776 3. Panama 1766 4. Canada 1738 5. Jamaica 1586