Casey Burgener vs Grzegorz Kleszcz

Career figures from every result on this site. Where one figure is better, it is in bold. The figures are explained under the table.

Figure	Casey Burgener	Grzegorz Kleszcz
Nation	United States	Poland
Born	1982	1977
Competitions	11, 2000 to 2010	13, 1998 to 2009
Olympic medals	None	None
World Championships medals	None	None
Best snatch	182 kg	190 kg
Best clean and jerk	218 kg	235 kg
Best total	400 kg (men's +105 kg, 2007)	425 kg (men's +105 kg, 2002)
Best Sinclair score	431.3	462.2
Best total, place in its class	105th of 704 in the men's +105 kg	51st of 704 in the men's +105 kg
Snatch attempts made	76% (25 of 33)	58% (21 of 36)
Clean and jerk attempts made	67% (22 of 33)	42% (15 of 36)
Snatch as a share of clean and jerk	83%	81%
World records held now	None	None

How to read these figures

• Sinclair score. The total scaled for bodyweight with the IWF's 2025 to 2028 coefficients, so lifters from different classes sit on one scale. Women and men have separate formulas.
• Place in its class. Where the best total stands among every lifter with a total in that class on this site, on the IWF class list in force at the time.
• Attempts made. The share of all snatch or clean and jerk attempts the lifter made. At senior World Championships and Olympic Games since 1998, lifters make 58% of snatches and 56% of clean and jerks.
• Snatch as a share of clean and jerk. The snatch divided by the clean and jerk at the best total. It describes the shape of a lifter, not strength, so it is not in bold; eight in ten men lifting in national federation meets sit between 71% and 86%.
• World records held now. Records on the IWF class list in force since 1 August 2026. A record set in a class that list retired does not carry over, so a past record holder can show none.

Every competition where both were entered in the same class, newest first. Each lifter's column gives the total in kilograms and the place in the class. "No lifts" means an entry without an attempt; "No total" means the results record no total, most often after three misses in one lift. Only meets where both posted a total count toward who finished ahead: the higher total, or on equal totals the published places, which went to the lighter lifter until 2017 and to the one who made the total first since.

The Sinclair score at each competition: the total scaled for bodyweight, so lifters from different classes sit on one scale. Competitions that ended without a total or a bodyweight have no point.