Carneddau scramble, Wrexham 10 mile race

An active weekend, but marred by the reappearance of my knee problem. Managed a quick trip to Snowdonia with Rich in poor weather: rain sweeping down Ogwen as we arrived. So we abandoned plans for a roped scramble, and instead headed up into Cwm Lloer. But the weather began to clear slightly as we entered the cwm, so we had a bash at the obscure Broad Gully Ridge (I/II). Moved through the cwm to the base of Broad Gully (climbed with Tim in perfect winter conditions in 1993!). Up this to just below the 'pitch', then a wet traverse left on a sloping gangway to a flake. Above, the rock was hopelessly greasy so we traversed further left and tried a horribly wet and vegetated gully which led to a very narrow cleft. This was fortunately just wide enough to pull out of, and led to an easy couloir and some intermittent scrambling on the ridge to join the normal east ridge at the top of the gully. Then over Pen yr Olau Wen and along with ridge to Carnedd Dafydd in low cloud, rain and strong winds: unpleasant. Took a bearing and scurried back to Ffynnon Lloer and the car. Next day, did the Wrexham 10 mile road race (North Wales championships), my 100th official race. Was going very well until 7 miles (exact 6 min 10 secs pace) but then blew up catastrophically, no idea why. Limped home in just over 64 minutes, very disappointing. Warmed down to take the mileage up to 14 for the day. But then felt my knee problems come back on a 6 miler the next day. Now I'm worried again...