CONCACAF qualifying 1998-2022 by points per game
From 
MH@24:150/2 to 
rec.sport.soccer on Wed Nov 17 13:41:18 2021
 
 
1998    Mexico won the group with 1.8 points per game.  3rd place 
required 1.4 points per game.  Last place ?  0.6 PPG
2002    Costa Rica first with 2.3 points per game.  3rd place needed 1.7 
PPG.  Honduras missed out with 1.4.  Last place  0.5 PPG
2006    USA and Mexico both on 2.2 PPG, Costa Rica 3rd on 1.6, TandT in  playoff on 1.3
2010    USA 2.0 PPG, Mexico 1.9, Honduras qualified with 1.6, Costa Rica  playoffs 1.6
2014    USA 2.2, Costa Rica 1.8, Honduras 1.5, Mexico (playoffs) 1.1
2018    Mexico 2.1, Costa Rica 1.6, Panama 1.3, Honduras 1.3 (playoff)
So overall, the average PPG for third place has been   1.52 points per game.
With 8 teams in 2021-2022, one could argue that it might end up being a 
bit higher (because extra teams are weaker), but maybe not.  So far it 
looks like more than 1.7 will be needed - that was the previous record.
Canada  2.0
USA     1.875
Mexico  1.75
Panama  1.75
Costa Rica 1.125
Jamaica  0.875
El Salvador 0.75
Honduras  0.375
--- SBBSecho 3.06-Win32
 * Origin: SportNet Gateway Site (24:150/2)