GRIM Series

The GRIM series sees thousands of adrenaline-pumped men and women run, wade and crawl through the coldest, wettest and filthiest of endurance courses.

[GRIM Series @GRIMSeries]

Did someone say MEDALS? They're back! 2015 sees both tech tees and bling coming your way! http://t.co/lvqtEzVjOb

[GRIM Series @GRIMSeries]

Please follow our new Twitter account @GRIMChallenge #GRIM

[GRIM Series @GRIMSeries]

Who's scared of the dark? http://t.co/lHCjKuFXAp #MudRun #87RT #KPRS #UkBizRT #LondonIsLovinIt #AtSocialMedia

[GRIM Series @GRIMSeries]

COME AND GET GRIM!

http://t.co/lvqtEzVjOb

[GRIM Series @GRIMSeries]

Come and release your inner child!

http://t.co/lvqtEzVjOb #MudRun #GRIM #87RT

[Adam Pollard @Pays2BaWinner]

my wife has Endometriosis To raise awareness/money for @EndometriosisUK , I will be running the @GRIMSeries in December. details to follow.

[GRIM Series @GRIMSeries]

Hands up if you like playing in the mud!

[GRIM Series @GRIMSeries]

Dates and venue have been confirmed for GRIM Blackout at Hawley Lake!
http://t.co/lHCjKuFXAp #UKRUNCHAT

[GRIM Series @GRIMSeries]

Are you looking to get into shape for a GRIM event this year?

http://t.co/lPrtTN5nhm

[GRIM Series @GRIMSeries]

Who ran GRIM BEAST this year and lived to tell the tale?

[GRIM Series @GRIMSeries]

GRIM DUATHLON = 5k-20k-5k of pure fun! http://t.co/CHqvqpM8nT #UKRunChat

[GRIM Series @GRIMSeries]

You've given us some corking team names over the years - are you on the list? http://t.co/4MUzCS15mR

[GRIM Series @GRIMSeries]

Come and challenge your mates with our witty invites: http://t.co/ZjSwaINZc2 #GRIM

[GRIM Series @GRIMSeries]

Hi guys we are after some marshals for our sister event @GetYourRushAR - details are here: https://t.co/CplyxvpPcy #UKRunChat

[GRIM Series @GRIMSeries]

Yep we love mud!

[GRIM Series @GRIMSeries]

Entry system is now open for GRIM Original in Aldershot http://t.co/Z9wTdSwbBG #KPRS #LONDONISLOVINIT #87RT

[GRIM Series @GRIMSeries]

Who loves running? How about around a muddy army vehicle training centre? http://t.co/Z9wTdSwbBG #UKRunChat #GRIM

[GRIM Series @GRIMSeries]

Who's coming to play in the mud at GRIM Blackout or Duathlon this October?

http://t.co/2CdiYXSZjw #87RT #MUDRUN #OCR

[GRIM Series @GRIMSeries]

Who's scared of the dark? http://t.co/lHCjKuFXAp #MudRun #87RT #KPRS #UkBizRT #UKHour #LondonIsLovinIt #AtSocialMedia

[GRIM Series @GRIMSeries]

Sunday inspiration! Come and challenge your limits at GRIM http://t.co/lvqtEzVjOb #87RT #LondonIsLovinIt #KPRS