# Valorant Movement Physics and Client Grace Period Matrix > Source: > Published: 2026-05-20 15:23:57+00:00 This document breaks down the mathematical and structural logic of Valorant's engine physics and network buffer systems. It explains how a player can achieve 100% first-shot accuracy using two entirely distinct mechanical windows after executing a clean key transition (e.g., releasing A and pressing D with a rifle equipped). The client-side frame timing (3.33 ms) and upper grace limit calculations (37.91 ms) detailed in this matrix are mapped using the author's personal competitive hardware configuration: - CPU: AMD Ryzen 5 5600X (6-Core, 4.6 GHz Max Boost) - GPU: NVIDIA GeForce RTX 3070 Ti - Monitor: 240Hz High-Refresh Gaming Monitor - In-Game Resolution: 1920x1080 (1080p FHD) - Graphics Quality Profile: All Settings Set to Low (Optimized CPU-bound competitive configuration) - Average Performance Target: ~300+ FPS Note: If your system utilizes a lower-tier processing configuration (e.g., locking your output at a baseline 60 FPS), your local simulation step (T_frame) increases to 16.66 ms, which drastically compresses the early client-side grace period window down to a much smaller, less forgiving margin of error. To calculate accurate timing windows, the engine utilizes a strict set of architectural and physical boundaries: - Max Running Velocity ($V_{max}$): $5.4 \text{ m/s}$ (Base sprint speed with a rifle). - Accuracy Deadzone Threshold ($V_{dead}$): $27.5%$ of $V_{max} = 1.485 \text{ m/s}$. Any speed below this vector grants a perfect yellow accuracy bar. - Server Tick Rate ($R_{tick}$): $128 \text{ Hz}$ (The server updates game states every $7.81 \text{ ms}$). - Hardware Frame Time ($T_{frame}$): At $300 \text{ FPS}$, a new frame is generated every $3.33 \text{ ms}$ ($1000\text{ms} / 300$). - Input Command Queue Limit ($Q_{limit}$): A maximum network history of $4 \text{ server ticks}$ is used to calculate packet interpolation buffers. When a movement key is completely released, Valorant's engine applies a non-linear exponential speed decay curve combined with a high flat deceleration constant to pull character momentum down to zero: $$Velocity(t) = A \cdot e^{-3.3t} - 28.6t$$ Where: - $A = \text{Starting Velocity Vector (m/s)}$ - $t = \text{Time elapsed since key release (seconds)}$ Result: Coming from $100%$ velocity ($5.4 \text{ m/s}$), this decay equation requires exactly $70 \text{ ms}$ to drag your actual coordinate velocity below the $1.485 \text{ m/s}$ accuracy floor. The early window works because the netcode prioritizes input state changes to keep the game snappy. When an absolute, clean direction swap is executed with no key overlap, the server grants an Input State Override Grace Period. The boundary limits for this buffer window are calculated based on server tick sizes and your local hardware render delays: $$\text{Minimum Open Time} \approx 15 \text{ ms}$$ $$\text{Maximum Upper Cutoff} = (4 \cdot R_{tick}) + (2 \cdot T_{frame})$$ $$\text{Maximum Upper Cutoff} = (4 \cdot 7.81\text{ms}) + (2 \cdot 3.33\text{ms}) = 31.24\text{ms} + 6.66\text{ms} = \mathbf{37.90 \text{ ms}}$$ This chart combines both independent processing timelines to outline your exact, absolute shooting windows based on your starting movement speed. - Client Grace Window: $15\text{ms} - 38\text{ms}$ (Created by the 4-packet network input queue). - Server Physics Window: Shifting timeline (Created by true kinematic ground friction). Every viable competitive movement strategy in Valorant is either a deliberate exploitation of the server's network input serialization rules or a direct optimization of the physical kinetic friction decay model. - Mechanical Input: Full sprint running direction A . PressD andFIRE almost simultaneously while completely transitioning offA . - Timing Window: $15\text{ms} - 38\text{ms}$ (Strictly bound by $W_{max}$). - The Underlying Math: This strategy runs entirely within the client-side command buffer queue ($Q_{limit}$). Because the local engine processes the sharp input transition packet state ( A -> None -> D ) before the server completes its tick simulation thread sweep, it treats the player state as an intentional instantaneous stop. This zeroes out the moving spread modifier for up to 4 server packets before true character model tracking calculations catch up. - Mechanical Input: Holding running direction A . Tap the opposite direction keyD at the exact moment you want to stop, forcing an active counter-momentum update. - Timing Window: $70\text{ms} - 135\text{ms}$ (At 100% initial velocity). - The Underlying Math: In games like Counter-Strike, tapping the opposite key applies a massive active braking force vector, forcing the velocity to drop to zero instantly. In Valorant, active counter-strafing applies zero additional braking force. The engine's movement code evaluates a counter-input simply as a release of the original vector. Thus, counter-strafing drops your speed along the exact same curve as a passive key release ($Velocity(t) = A \cdot e^{-3.3t} - 28.6t$). It functions, but its timing windows map identically to Dead-Zoning. - Mechanical Input: Letting go of your active movement key entirely ( A -> None ), firing a burst at the exact moment of vector inversion, and immediately re-engaging movement. - Timing Window: $70\text{ms} - 135\text{ms}$ (At 100% initial velocity). - The Underlying Math: Unlike the Drive-By, Dead-Zoning waits for the server to confirm your true physical coordinate speed. It is a pacing mechanism optimized around the flat kinetic deceleration constant ($28.6 \text{ m/s}^2$). Because you are waiting exactly $70\text{ms}$ for the exponential speed decay to drag you beneath $V_{dead}$ ($1.485 \text{ m/s}$), the shot relies completely on physical zero-velocity confirmation rather than a network state override packet. - Mechanical Input: Rapidly oscillating micro-strafes using A andD in short, sharp bursts, tappingFIRE at the peak of each direction swap. - Timing Window: $15\text{ms} - 95\text{ms}$ (Continuous, uninterrupted shooting envelope). - The Underlying Math: When keeping jiggles tight, your initial starting velocity rarely accelerates past 60% ($3.24 \text{ m/s}$). At this compressed baseline, the physics stopping distance calculation shrinks drastically. The entry point for the server's physical registration window slides backward in time until it collides with the closing boundary of the network command buffer queue ($37.91 \text{ ms}$). This eliminates the high-velocity "Blind Spot" entirely, creating a massive, continuous $80 \text{ ms}$ accuracy window where timing errors are physically impossible. - Mechanical Input: Continuing to hold down a directional movement key while executing a full spray, typically used at extremely close ranges or with specific weapons. - Timing Window: Persistent ($0\text{ms}$ delay from click-down). - The Underlying Math: This relies entirely on tracking the absolute baseline value of $V_{dead}$. When moving at 30% velocity or lower ($1.62 \text{ m/s}$ or less), or when under the influence of status effect tags (like heavy bullet tagging from an enemy shot or moving while crouching), your character's true physics speed vector is hovering permanently right at or below the $1.485 \text{ m/s}$ line. Because you are structurally "stopped" according to the accuracy calculation formulas, you maintain native 100% first-shot accuracy without ever manipulating your keyboard state. To verify the structural integrity of the equations, tick frequencies, and input states used in this matrix—and to prove these mechanics are built directly into the game engine—reference the following official documentation from the Riot Games development team: - Source: Riot Games Technology Blog - Official Article: Peeking into VALORANT's Netcode - Verification Section: Scroll down to "Minimizing Simulation Divergence." This is where Riot's core gameplay integrity engineers document the creation of Valorant's custom move-queuing system. It explicitly details how the client-side engine queues up movement choices locally and serializes them into fixed state updates, providing the foundation for the network grace period buffer override ($W_{max}$). - Source: Riot Games Technology Blog - Official Article: VALORANT's 128-Tick Servers - Verification Section: Review the data pipeline diagrams under "Replication and Gameplay Network Scopes." This technical blueprint outlines how the game handles data packet clustering every $7.81\text{ ms}$ ($T_{tick}$), proving how the engine forces client keyboard states to bundle into the strict 4-packet command frames ($Q_{limit}$) that govern the early accuracy timeline. - Source: Valorant Official Support Infrastructure - Official Article: VALORANT Game and Network Instability Basics - Verification Section: Navigate to the "Network Buffering" documentation matrix. This page serves as the official user-facing verification for the command queue. It explicitly logs that modifying the in-game Network Buffering setting between Minimum, Moderate, and Maximum structurally alters the exact count of server simulation frames your machine queues up before executing local state updates—directly manipulating the millisecond boundaries of your grace period bubble. - Source: Official Valorant Patch Notes Archive - Official Article: VALORANT Patch Notes 0.50 (Early Access Tuning) - Verification Section: Locate the "Gameplay & Balance Updates" ledger under character movement rules. This historical patch documentation marks the exact engine update where Riot's balance designers established the uniform $V_{dead}$ ceiling across all weapon profiles, dropping the legal movement error threshold to its permanent baseline of $27.5%$ of maximum running velocity.