Complex sentence: Almost half (47%) of the 134 Irish Cup competitions to date have been won by one of the two clubs, with at least one of the clubs reaching the final in 87 (64.9%) of them, being victorious 63 times.
Split into simpler sentences: Almost half (47.4%) of the 133 completed Irish Cup competitions have been won by one of the two clubs. At least one of them has reached the final in 87 (65.4%) of them, being victorious 63 times.