Even Renato Canova supports that Boston was legit,
http://www.albertostretti.org/2014/09/the-20300-wall-finally-falls-down-by.html
I did run Boston but am a 2:21 guy so my speed is not as "quadratic" as the pros, but I did not PR (that was from Chicago). The hills provide a challenge.
Here you can see the list of the top 30 marathon runners all-time :
2:02:57 WR (1) Dennis Kimetto KEN Berlin 28 Sep 2014
2:03:02 (1) Geoffrey Mutai KEN Boston 18 Apr 2011
2:03:06 (2) Moses Mosop KEN Boston 18 Apr 2011
2:03:13 (2) Emmanuel Mutai KEN Berlin 28 Sep 2014
2:03:23 WR (1) Wilson Kipsang KEN Berlin 29 Sep 2013
2:03:38 WR (1) Patrick Makau KEN Berlin 25 Sep 2011
2:03:59 WR (1) Haile Gebrselassie ETH Berlin 28 Sep 2008
2:04:05 (2) Eliud Kipchoge KEN Berlin 29 Sep 2013
2:04:23 (1) Ayele Abshero ETH Dubai 27 Jan 2012
2:04:27 (1) Duncan Kibet KEN Rotterdam 05 Apr 2009
2:04:27 (2) James Kwambai KEN Rotterdam 05 Apr 2009
2:04:32 (1) Tsegaye Mekonnen ETH Dubai 24 Jan 2014
2:04:38 (1) Tsegaye Kebede ETH Chicago 07 Oct 2012
2:04:45 (1) Lelisa Desisa ETH Dubai 25 Jan 2013
2:04:48 (1) Yemane Adhane ETH Rotterdam 15 Apr 2012
2:04:48 (2) Berhanu Shiferaw ETH Dubai 25 Jan 2013
2:04:49 (3) Tadesse Tola ETH Dubai 25 Jan 2013
2:04:50 (2) Dino Sefir ETH Dubai 27 Jan 2012
2:04:50 (2) Getu Feleke ETH Rotterdam 15 Apr 2012
2:04:52 (2) Feyisa Lilesa ETH Chicago 07 Oct 2012
2:04:52 (4) Endeshaw Negesse ETH Dubai 25 Jan 2013
2:04:53 (3) Gebrziabher Gebremariam ETH Boston 18 Apr 2011
2:04:53 (5) Bernard Koech KEN Dubai 25 Jan 2013
2:04:54 (3) Markos Geneti ETH Dubai 27 Jan 2012
2:04:55 WR (1) Paul Tergat KEN Berlin 28 Sep 2003
2:04:55 (2) Stanley Biwott KEN London 13 Apr 2014
2:04:56 (2) Sammy Korir KEN Berlin 28 Sep 2003
2:04:56 (4) Jonathan Maiyo KEN Dubai 27 Jan 2012
2:04:58 (4) Ryan Hall USA Boston 18 Apr 2011
2:05:04 (3) Abel Kirui KEN Rotterdam 05 Apr 2009
- See more at:
http://www.albertostretti.org/2014/09/the-20300-wall-finally-falls-down-by.html#sthash.arGesOy7.dpuf