In the race, which gave him the Swedish Championship gold, it was Victor Johansson who took silver and little brother Rasmus Hanson who grabbed the bronze.
Hanson's time was over half a second faster than the previous record of 1.46,50, despite strong wind and tough external circumstances.
It's a world time, a crush! shouted SVT's commentator Niklas Nord.
About the race and the record, Robin Hanson says:
I got very tired in the last 45 so I felt that it might be a time over 1.46 – but then I saw the audience in the last 25 and felt "now damn" and so it went, it was awesome, he says to SVT and continues:
You feel the wind and they are not the best conditions. But I have been training outdoors for four years now in Berkeley so it was nothing other than a regular training, so it was nice.
Hanson's time also holds up internationally and may be enough for a final spot in the World Championship.
It gives a lot of confidence ahead of the World Championship, of course, he says.
Earlier during the Swedish Championship week, he also took home the gold on 100 meters freestyle with an impressive 49,03.