The Biles 1 is a gymnastics skill named after Simone Biles that refers to her signature vault entry with a half twist on and a half twist off a roundoff entry onto the vaulting table. As a Yurchenko half-on, half-off vault, it carries a high difficulty rating and is one of Biles’s most recognized competitive elements. This explainer covers how the skill works, its scoring and historical context, and how it fits into Biles’s broader vault repertoire and impact on the sport.
Definition and Mechanics of the Biles 1
The Biles 1 is officially classified as a Yurchenko half-on, half-off vault. In execution, the gymnast performs a roundoff onto the springboard, then a half-turn onto the vaulting table, performs the flight and salto elements, and finishes with a half-turn off the table to land. The half-on entry differentiates it from a standard Yurchenko entry, and the half-off exit adds complexity to the rotation and body positioning. This precise combination of entry and exit is what defines the skill and contributes to its difficulty value.
Key Technical Components
- Roundoff entry onto the springboard
- Half turn onto the vaulting table (half-on)
- Flight and salto with controlled position
- Half turn off the table (half-off) before landing
Origins and Naming
The skill is named after Simone Biles, who first competed it in major international competition. When a gymnast originates a vault with distinct entry and exit criteria that is recognized by the scoring authorities, it can be named after them in the Code of Points. Biles introduced this vault at a time when women’s gymnastics was increasingly emphasizing difficulty, and the skill was officially added to the Code as the Biles 1. Its inclusion reflects the evolution of women’s vaulting and the competitive incentive to develop high-difficulty, high-risk elements.
Difficulty and Scoring Context
In women’s artistic gymnastics, vaults are evaluated on both difficulty (D-score) and execution (E-score). The Biles 1 carries a relatively high D-score compared to other women’s vaults, reflecting the complex combination of entry and exit skills. The difficulty places it among the most challenging options typically selected by female gymnasts under the current tariff. A simplified view of how the Biles 1 compares to common women’s vaults is shown below.
Comparative Vault Difficulty Snapshot
| Vault | Difficulty (D-score) Range | Typical Entry/Exit |
|---|---|---|
| Biles 1 | 5.0 | Yurchenko half-on, half-off |
| Yurchenko layout | 4.8 | Yurchenko layout entry |
| Tsukahara | 4.2 | Half-on, tucked salto |
| Handspring entry vaults | 4.0–4.6 | Handspring onto table |
Performance and Execution Notes
Executing the Biles 1 requires precise timing in the roundoff, a strong and stable half-on onto the table, and controlled rotation in the air. Any under-rotation or misalignment in the half-on entry or half-off exit can lead to deductions. Additionally, the flight path and body position must meet standards to avoid loss of points. Gymnasts train the entry and exit separately before combining them into the full vault, often using drills that emphasize block power, table contact, and spatial awareness.
Status in Simone Biles’s Career
Simone Biles has periodically included the Biles 1 in her competitive programs, particularly when maximizing difficulty. Its use demonstrates her ability to handle high-level Yurchenko-based vaults and contributes to the overall composition of her routine. Coaches and analysts note that selecting the Biles 1 involves a risk–reward trade-off: the potential for a high D-score is balanced against the penalty for any mistake in execution. Over time, the presence of the Biles 1 in her meet history has helped illustrate the evolution of difficulty expectations for women’s vaulting.
Common Misconceptions and Clarifications
A frequent confusion is equating the Biles 1 with Biles’s more famous floor or vault elements that involve multiple flips and twists. The Biles 1 is specifically a vault of moderate difficulty, not the most difficult move she performs. Another misconception is that it is identical to a standard Yurchenko; the half-on, half-off characteristics distinguish it and define its placement in the tariff. Understanding these distinctions is important for accurate discussion of scoring and risk in competition.
How the Skill Is Recognized Officially
Official recognition of the Biles 1 follows the process by which new or modified vaults are evaluated and named in the Code of Points. National governing bodies and international technical committees review submitted videos and descriptions, then assign a D-score when the skill is approved. Once named, the vault appears in competition regulations, and athletes may incorporate it into their eligible routines. Changes to the tariff or scoring can affect how often the Biles 1 is selected relative to other vault options.
Training and Progression for the Skill
Coaches typically break the Biles 1 into component drills, focusing on the roundoff speed, block into the table, and precise half-turns. Progressions may include entry onto stacked mats, low-height table repetition, and gradual integration of the half-off landing. Spotting and harness work are used to build confidence in the spatial dynamics of the half-on, half-off sequence. Athletes must master basic Yurchenko entries before attempting the more specific mechanics of the Biles 1.
Strategic Considerations in Competition
Choosing the Biles 1 in a routine is a strategic decision tied to difficulty targets, execution reliability, and event specialization. For specialists on vault, the skill offers a way to accumulate D-score while managing risk. For all-arounders, the trade-off between potential higher scores and consistency may lead to selecting a lower-D vault. Judges evaluate both the intended skill and any deviations, so understanding the consequences of errors is essential for program planning.
Evolution and Future in Women’s Gymnastics
The trajectory of women’s vault difficulty has influenced how skills like the Biles 1 are valued and selected. As norms and training methods advance, the frequency and context of the Biles 1 may shift within competitive programs. Ongoing discussions about risk, reward, and athlete safety continue to shape the landscape of vaulting options. The Biles 1 remains a meaningful reference point for understanding how named elements contribute to scoring, strategy, and legacy in gymnastics.