Though primarily a sculler, Casamajor helped the club eight win the Grand Challenge Cup at Henley in 1857 and 1859 although on both occasions he showed extreme exhaustion.
Casamajor helped the club eight win the Grand Challenge Cup and partnered Paine in the Silver Goblets in 1859 when they were runners-up to Warre and John Arkell.
Casamajor died from a broken blood vessel at the age of 28, a month after winning at Henley and three days before the date of the Wingfield Sculls and the race was postponed in tribute.
A tribute in Hunts Yachting Magazine noted [5] "THIS gentleman's sudden death on Wednesday Aug 7th caused great regret amongst the rowing men on the Thames and a large circle of friends His kindly disposition gained him the esteem of all parties with whom he came in contact during his long and successful career as the Champion Sculler on the Thames and the aquatic editor of DeWs Life himself an oracle on boating says His wonderful prowess as an oarsman and sculler and unflinching pluck at once directed attention to the boat in which he was pulling a match and without disparagement to his predecessors and contemporaries we may pronounce him to have been one of the best scullers that have ever appeared.
[7] However, he had great strength and his technique was effective, it being noted that on an occasion when he rowed out of style he was quickly down at the start, although he went on to win when he reverted to his long stroke.