Wow my 1st ever world half marathon championship and although it rained very heavy it didn't dapper my efforts. Great views of this wonderful city. Plenty of water stations and loos around the course is a welcome bonus. Dont believe everyone that says this is a flat route ITS NOT there was definitely some hills to test your calfs. A must do race if ever you get a chance.

Well marshalled and surprisingly well supported considering the awful conditions. 

This race was a testemant to the insane persistance of runners and the Welsh spporters who came out to cheer them on.

The weather was rough from the outset, you can guage an entrants performance in this race by asking them where they were when the hailstones hit. However the crowds were large, loud, enthusiastic and filled with love. 10/10 would run this race again, even with the hailstones and rain!

This was my first half marathon, looking back now in hindsight I would say the event was okay. Very expensive for what it was, following more or less the same route as the annual Cardiff half (which takes place in October). The race started around 2pm if I remember correctly, which I now realise is a ridiculous time to start a half marathon in a city and the the fact marshalls were taken off the route after 3 hours was very poor organisation and unfair on those still running at that time, having paid the extortionate cost to enter. As an urban race the atmosphere was, of course, very good. The main positive is that this was the race I started running for. There's that at least.

I had done the Cardiff Half six months earlier and signed up for this one immediately. It's a lovely route with great local support and it was an awesome feeling to know you're running in the footsteps of the elites. 

As it was my second time on the course, I was prepared for the climbs and managed to better my time by over 6 mins, to finish in 1:50. 

Only caution I would add is that there is a wooden stretch leading to Roald Dahl underpass, which on the day was extremely slippery due to sudden weather changes (we had hail, heavy winds and rain, and sunshine in the space of 2 hrs) and many runners slipped and fell. Hence, why I gave only 4 points for safety. 

here is my Race video https://youtu.be/YwW7iNTDrT4 

this was a bit of a one off in March for the IAAF World Champs but the route used is the same as the regular Half that takes place in the October 

this was an amazingly well organised day with lots of red carpet rolled out for elites & the BBC 

i'm in october its scaled back abbot but the race equally as good Cardiff is an interesting city to run round.

A very strange feeling to be training for and then running the Cardiff Half event in March (as it's normally October) but with the eyes of the world and the attraction of an elite field of world class atheletes including Mo Farrah coming to town! 

For anyone that has run the usual Cardiff Half Marathon, unfortunately and despite it being a World event, it used pretty much the same route. However, with a start outside the spectacular Cardiff Castle, a pretty flat route save for one or two small little climbs (not really hills in Wales!), a route that went across the iconic Cardiff Bay Barrage and around the glorious Roath Park Lake, it was still a route to savour. 

Registration was held in the large Motorpoint arena and the organisation was excellent. Nice selection of companies on show for the Expo and there was a large stage where celebrity athletes would be interviewed and talks done with other notable people. 

Unfortunatly on the day, the weather had turned typically Welsh! Heavy wind and rain forecaset! At the start the heavens opened and most of us stood waiting, getting cold under the cagouls that had been provided with our packs. (Thanks Addidas!) Not much more than 2/3 miles in then the heavens opened again!! We all got absolutely soaked! At least the wind gods were helping as we had it almost behind us pushing us along the big open bay barrage (if it was in front it would have been a nightmare!!). 

Absolutely brilliant support though, right across the route and in all that awful weather! Can't thank those people enough as it was so good to see them all out despite the soaking they clearly were getting too! 

It was a lot of money to enter, roughly £60 but it has to be regarded as a one off event really and I won't dispute the ratings for the event for the price. 

Fabulous medal at the end, Addidas green tech tshirt, closed roads and the knowlege that despite running a regular route it was all as a one off really for a World Half event! Great organisation throughout and marshalling despite 25,000+ runners! 

Having run the Cardiff half before though I would enter this as it was that little bit extra special being the World Championships in your home town. The entry fee was a little fruity but there was the early bird option that did sweeten the blow a little.

Registration was in one of the conference centres in the centre of town and was easy to sort. I didnt hang around the expo but it looked as though it covered most bases from running/cycling to triathlon.

On the day a group of us rode down to the start area as it was easier ( not sure how parking was ) but also saw several people at local train stations in tracksuits and jogging on the spot ( why do people do that?) so can only presume that they were in it too.

Once bikes locked up we handed our bags in (simple) put on our binliners/plastic ponchos and made our way to the start line. There were lots of toilets and certainly for the male of the species the queues were very short. Getting into the start pens again was easy and the marshalls kept you moving. The organisation was very good and I have to say that Cardiff (& Wales) is now pretty efficient when coming to organising mass events (think 6N, RWC, Ashes, FA Cup Finals, Ryder Cups, UN Summits etc etc).

The hideous weather forecast was holding off and the starting pistol was fired to get everyone underway. I didnt get held up at all (was in the sub 1,45 pen ( which was split into 1,15/1,30/1,45).Feed stations were well stocked but only ever took water. There wa lucazade and gels (I think ) there were also huge numbers of supporters lining the streets of the course with bags of sweets and sugary pick me ups!

As with most things in Wales the support was incredible and when the biblical weather conditions did arrive (..and didnt they just - I half expected to see Noah & the animals at one point) the crowds didnt disappear - if anything they got louder.

If you are looking for a good flat, well supported race that is in a  great city with plenty to do after then this is the race for you. Already signed up for the October event. I may be slightly biased as from Cardiff but you wont be disappointed - you may even get a cheer from the legendry Cr@pTri support crew whilst out on the course.

As for my race , well I started at the same time as Mo - he didnt pass me on route so I can only presume I beat him.