The 42-year-old Welsh athlete crossed the finish line 25th on the opening day of the European Athletics Championships after clocking a hard-fought time of 2:18:23.
The 26-mile contest was both a team and individual event and alongside Mohamud Aadan, Philip Sesemann and Andrew Heyes, the British riders finished seventh as Israel beat hosts Germany for gold.
Temperatures in the city were soaring and Davies admits these conditions significantly sabotaged his progress.
He said: “It was good – at first I felt really comfortable, but it was warmer than expected.
“The sun was beating down, we were outside and I needed some shade.
“But we fought – it was just about getting to the finish line in one piece and doing everything we could for the team.
“We knew it was going to be hot – I went off a bit too fast for what I expected and struggled to slow down due to adrenaline.
“The heat played a big part and everyone will say the same thing.”
Davies finished eight minutes behind individual champion Richard Ringer, who stopped the clock in a season-best 2:10:21 to claim an impressive win.
Israeli stars Maru Teferi and Gashau Ayale completed the podium at Munich’s iconic Odeonsplatz square.
Athletics is one of nine sports that host their European Championships at this innovative multi-sport event, along with cycling, gymnastics, rowing, triathlon, table tennis, canoe sprint, sport climbing and beach volleyball.
This expanded offer meant fans flocked to the Monday marathon and Davies admits he loved getting a piece of the action.
“The crowd was amazing,” he said.
“There were a lot of British fans on the course so it was great to have that support.”
n The European Multisport Championships Munich 2022, including athletics, beach volleyball, canoe sprint, cycling, gymnastics, table tennis, triathlon, rowing, sport climbing, take place until to August 21 on the occasion of the 50th anniversary of the Olympic Games in the German city. Watch daily live coverage on BBC One, Two, Red Button, BBC iPlayer, BBC Sport website