73-YO Powerlifter Mary Duffy Crushes a 310-lb Deadlift With Chains In Training

May 21, 2023
6 min read

Correctly performing powerlifting movements is essential for developing a solid foundation for everyday movements. As individuals age, they often turn to powerlifting training as a means to maintain mobility, functionality, and overall health. However, there are a few phenoms who surpass the expectations relative to their age, and 73-year-old Mary Duffy is one of those. Mary has consistently amazed with her impressive feats over the years, but her latest accomplishment was truly remarkable. She deadlifted a staggering 310 pounds, but what made it even more extraordinary was the addition of massive chains to part of the weight.

In an Instagram post made on May 18th, Mary Dufy confidently approach the barbell, which was already loaded with 180 pounds. However, what caught everyone’s attention was the additional 130 pounds hanging from it in the form of chains. Mary got positioned in a conventional stance and grabbed the bar with a mixed grip. She then easily picked up the weight, only starting to struggle in the lockout phase of the lift.

Mary Duffy’s slight struggles during the lockout are understandable since the entire purpose of the chains is to make the deadlift easier in the beginning phase and harder as the barbell lifts up higher.

Watch the lift here:

Related: Strongwoman Inez Carrasquillo Hits Front Squat PR of 350 Lbs (158.8 kg) + 60 Lbs (27.2 kg) In Chains

Mary Duffy’s Instagram caption also states that she is currently weighing 117 pounds, making her 310-pound deadlift 2.6x her bodyweight. This, alongside the fact that she is 73-years-old, makes her deadlift even more impressive.

Shortly after Marry Duffy’s 310-pound deadlift, she attempted to add another 5 pounds to the bar. It turned out that this was too heavy for her, as Mary was unable to lock out the lift. She shared that video to Instagram as well, and wrote the following caption:

“FAILURE is as important as the “SUCCESSES”!!!

There’s that 5 lb. wall!!!? It’s how we get there”

Mary Duffy originally started competing in 2015 and has accumulated 21 sanctioned appearances. She has been extremely successful, winning 20 competitions and claiming second-place the only time she didn’t win.

Mary Duffy’s Raw Competition PRs

  • Squat: 67.5 kilograms (148.8 pounds) — (2022 USAPL Connecticut Ladies of Iron)
  • Bench Press: 60.1 kilograms (132.5 pounds) — (2018 IPA Ironman Push/Pull Showdown)
  • Deadlift: 117.9 kilograms (260 pounds) — (2019 IPA Connecticut Ironman Push/Pull Showdown)
  • Total: 235 kilograms (518.1 pounds) — (2022 USAPL Connecticut Ladies of Iron)

Related: Julia Vins Smokes Huge 240kg Squat With 35kg Chains

Mary Duffy’s Competition History

Personal Bests

Equip Squat Bench Deadlift Total Dots
Wraps 180 125 180 550 297.92
Raw 148.8 132.5 148.8 518.1 277.04

Competition Results

Place Fed Date Competition Division Total Dots
1 IPA 2022-10-29 Connecticut State Powerlifting Championships Amateur Masters 70-74 540 297.92
1 USAPL 2022-04-30 Connecticut Ladies of Iron FR-M4 518.1 277.04
1 IPA 2021-11-06 Ironman Showdown Amateur Masters 70-74 362 195.07
1 IPA 2019-11-02 Connecticut State Powerlifting Championships Amateur Masters 70-74 550 292.28
1 IPA 2019-04-06 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 390 207.83
1 IPA 2018-03-03 Ironman Push/Pull Showdown Amateur Open 382 201.34
1 IPA 2018-03-03 Ironman Push/Pull Showdown Amateur Masters 65-69 382 201.34
1 IPA 2017-10-21 Connecticut State Powerlifting Championships Amateur Masters 65-69 130 70.06
1 IPA 2017-03-18 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 375 199.84
1 IPA 2017-03-18 Connecticut Ironman Push/Pull Showdown Amateur Open 130 69.28
2 IPA 2016-10-15 Connecticut State Powerlifting Championships Amateur Open 535 286.68
1 IPA 2016-10-15 Connecticut State Powerlifting Championships Amateur Masters 65-69 535 286.68
1 IPA 2016-04-16 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 380 203.05
1 IPA 2015-10-03 Connecticut State Open Powerlifting Championships Amateur Open 530 280.86
1 IPA 2015-10-03 Connecticut State Open Powerlifting Championships Amateur Masters 65-69 530 280.86
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Open 340 179.21
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 340 179.21
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Open 110 57.98
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 110 57.98
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Open 230 121.23
1 IPA 2015-04-25 Connecticut Ironman Push/Pull Showdown Amateur Masters 65-69 230 121.23

Data Source: Open Powerlifting. Last Updated: April 12, 2023

Mary Duffy is best known for her deadlifts, which have gone viral on a few occasions. Mary also wowed the community almost one year ago when she performed a 250-pound trap bar deadlift with chains in training as well. It is often the strength she gains from her training that is translated into her competitions. So, this new 310-pound deadlift insinuates that she will put up an amazing performance the next time she competes.

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