If i will bet $1.000.000 even with such odds, i will analyze everything i can, even if someone ate an ice-cream a day before. For someone it can be just a standard bet, someone can make 10-20 such bets per day. Without additional information we can`t count the result.
There is no way for us to know if this gambler has done his own research before placing that bet but what's for sure is that the odds can't be lower than 1.01.
Also, we should not forget that the odds providers do their own research too and they are definitely more resourceful than any regular gambler.