Paddy Pimblett's weight cut

Most weight-cut stories are about the last few pounds. Paddy Pimblett's is about the first 40, which he puts back on after every fight and takes off again before the next one.

His numbers

Apart from the official weigh-in, these are his own figures from interviews and his own channel. None was measured under controlled conditions, so treat each one as approximate.

What a week of eating can actually add

A week after the Chandler fight he said he woke up at 198, "which is fat." Most reports counted that from 155 and called it 43 pounds of fat in a week. He had officially weighed 156, so it was 42, and either way fat cannot arrive that fast. A pound of body fat stores roughly 3,500 kcal, so 42 pounds would take about 147,000 kcal above what he burned: more than 20,000 a day on top of his normal needs, for 7 days straight.

He has said he eats more than 10,000 calories a day after a fight. Assume he burns around 3,000. That surplus, if every calorie of it were stored as fat, which it is not, would add about 14 pounds in a week. The rest of the 42 is water, glycogen and food in the gut, largely the weight he removed to make the limit.

My reading, from the outside: if his fight-night figure of 191 held for the Chandler fight too, about 35 of those 42 pounds were back before he stepped into the cage, and the week of eating added something like 7 more.

The descent before every fight

The fight-week cut is the smaller part of his job. For UFC 314 he posted the whole descent on his own channel, and these are the figures as MMA Weekly reported them from that video.

From 7 weeks out to 10 days out he came down 18.6 pounds, about 1.8 percent of his body weight a week. Before his UFC debut in 2021 he described almost the same rate: a camp that started at 89.6 kg with about 4 kg still to lose 10 weeks later. In professional MMA fighters followed by researchers, rates under about 0.5 percent a week preserved fat-free mass best. A descent more than 3 times faster, repeated before every fight, raises the share of muscle that goes with the fat. How much can come off in a single week.

Then the last day. He was 170 at 2 days before the weigh-in and still 170.4 at 14 hours out. By 9 hours out he was 157.2: 13.2 pounds, close to 8 percent of body weight, in about 5 hours. Over the final 48 hours the loss came to 8.2 percent, against a reference ceiling of about 5.7 percent at that point. He called it "one of the easier ones."

My reading, from the outside: a final day like that depends on the earlier stages having been run, and it is where the risk in his cycle is concentrated. When the last day stops being a weight problem.

What the results say

Nothing in his record says the cycle has cost him a fight. He is 8 and 1 in the UFC. The loss was a unanimous decision to Justin Gaethje for the interim lightweight title in January 2026, and in July he submitted Benoît Saint Denis in 52 seconds.

My reading, from the outside: the cost of the cycle sits in the camp rather than on fight night. Every camp opens with 40 pounds to lose, and the weeks spent on the scale are weeks not spent on anything else.

The number that decides the camp

For most fighters the more useful figure is the weight between fights. At 198 he was close to 28 percent above the lightweight limit. From there the calendar decides everything: how many weeks the camp needs to come down at a rate that keeps muscle, and how much is left for fight week.

The calculator runs that arithmetic for your own weight and date, and coming back after a layoff covers what time off costs besides the weight.

Common questions

How much does Paddy Pimblett weigh between fights?

By his own account, around 196 to 200 pounds. A week after the Michael Chandler fight in April 2025 he said he woke up at 198, which he called about the heaviest he gets.

How much weight does Paddy Pimblett cut for 155?

From a between-fights weight of around 196 to 200 pounds to the 155-pound lightweight limit, roughly 40 to 45 pounds each time, most of it across camp rather than in fight week.

What does Paddy Pimblett weigh on fight night?

He said in 2026 that he walks into the cage at about 191 pounds after weighing in at 155.

Did Paddy Pimblett really gain 43 pounds of fat in a week?

No. The widely reported 43 pounds was counted from 155; he officially weighed 156, so the gain was 42. That much fat would need about 150,000 calories above maintenance in 7 days, and most of a rise that fast is water, glycogen and gut content.