Boyanka Kostova vs Izabella Yaylyan

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	Boyanka Kostova	Izabella Yaylyan
Nation	Azerbaijan	Armenia
Born	1993	1995
Competitions	18, 2009 to 2021	30, 2009 to 2026
Olympic medals	None	None
World Championships medals	1 gold	None
Best snatch	112 kg	97 kg
Best clean and jerk	140 kg	115 kg
Best total	252 kg (women's 58 kg, 2015)	210 kg (women's 59 kg, 2018)
Best Sinclair score	346.0	286.4
Best total, place in its class	1st of 834 in the women's 58 kg	66th of 438 in the women's 59 kg
Snatch attempts made	78% (42 of 54)	63% (55 of 88)
Clean and jerk attempts made	69% (36 of 52)	58% (48 of 83)
Snatch as a share of clean and jerk	80%	83%
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 women lifting in national federation meets sit between 70% and 85%.
• 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.

Lifters whose best totals came in nearby classes, from any year.

• Nearby class Boyanka Kostova vs Hsu Shu-ching
• Nearby class Boyanka Kostova vs Chen Yanqing
• Nearby class Boyanka Kostova vs Hidilyn Diaz
• Nearby class Boyanka Kostova vs Maude Charron