King is the only athlete to post the required qualifying time to represent team Great Britain in London after recording a personal best of 4:06:34 in March, at the high-profile Dudinska Patdesiatka event in Dundice, Slovakia.
That time put the 29-year-old well inside the Olympic ‘B’ standard after he shaved eight minutes off his previous best, as he looks to become the first competitor in the event since Chris Maddocks at the 2000 Sydney Olympics.
Despite the lack of competition for places in the 50km event, the Colchester Harrier is taking nothing for granted.
“All I can do is keep my fingers crossed that the selectors call me with good news, but the recent events involving Aaron Cook show that nothing is guaranteed.
“Unfortunately, politics do play a part in the team that is selected for major events but those responsible have a hard job and every sport is different.
“They are never going to truly admit the real reasons why they aren’t selecting one individual over another. No matter how much we try to believe that the best competitor will always be selected, it isn’t true.”
It has been a successful year for King, who was part of the ten-strong squad for May’s IAAF Race Walking World Cup in Saransk, Russia.
After a four-year absence from the international scene, Dominic posted his second fastest ever time of 4:13:25 to finish in 51st place, ten spots ahead of twin brother Daniel.
King, who took up race-walking in 1994 after encouragement from club coach Jerry Everett, is hoping to better his seventh place finish in the 2006 Commonwealth Games.
He is aiming to follow in the footsteps of the trio of previous medallists in the event, and has mixed feelings about potentially ploughing a lone furrow in London.
“It is good to have someone so close trying to follow the same dreams but sometimes it can be hard because they are a rival as well as a friend and training partner.
“While it would have been good for us to compete together again, it eases some of the pressure on me for him not to be there.
“While I am relishing this chance to perform in front of my family and friends, past experiences have taught me a lot.
“I have learnt a big lesson from the 2002 Commonwealth Games when I let the emotions overcome me and went off too fast, and ended up being disqualified. I will make sure that this doesn’t happen again.”
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BIOGRAPHY: Marcus Rashford