Legendary Eagle Master vs. Supreme Master First Class: What Cognitive Testing Reveals
CS2 compresses its rank ladder into fine-grained tiers, and the gap between adjacent ranks like Legendary Eagle Master and Supreme Master First Class is rarely explained by simple reaction time alone. Cognitive testing across the NeuroRank cohort shows the separation is more commonly driven by choice reaction latency, session-wide consistency, or how much accuracy degrades under composure load.
Below are the current NeuroRank percentile benchmarks across the four dimensions most relevant to closing that gap. These are the platform's live normative percentile tables, not archived or estimated figures.
Simple Reaction Time Distribution
Simple reaction time measures raw stimulus-to-response speed with no decision component. The full NeuroRank percentile distribution, in milliseconds (lower is faster):
- 99th percentile: 154 ms
- 95th percentile: 182 ms
- 90th percentile: 201 ms
- 85th percentile: 207 ms
- 80th percentile: 212 ms
- 75th percentile: 215 ms
- 70th percentile: 217 ms
- 65th percentile: 224 ms
- 60th percentile: 228 ms
- 55th percentile: 232 ms
- 50th percentile: 238 ms
- 45th percentile: 243 ms
- 40th percentile: 246 ms
- 35th percentile: 252 ms
- 30th percentile: 256 ms
- 25th percentile: 261 ms
- 20th percentile: 264 ms
- 15th percentile: 271 ms
- 10th percentile: 284 ms
Legendary Eagle Master players typically fall in roughly the 69th to 78th percentile range on this distribution. This is an illustrative estimate based on where this rank tier sits on the overall CS2 ladder, not measured NeuroRank rank-cohort data. The platform does not currently segment its norm tables by in-game rank, only by percentile across the full tested population.
Choice Reaction Time: The Duel-Relevant Metric
Almost every CS2 duel is a choice reaction, not a simple one. Peeking a corner means registering the enemy model, deciding whether to continue or pull back, and only then clicking. That decision layer adds real time on top of simple RT, and it is where most of the gap between Legendary Eagle Master and Supreme Master First Class actually lives.
- 99th percentile: 210 ms
- 95th percentile: 255 ms
- 90th percentile: 278 ms
- 85th percentile: 295 ms
- 80th percentile: 310 ms
- 75th percentile: 323 ms
- 70th percentile: 335 ms
- 65th percentile: 347 ms
- 60th percentile: 358 ms
- 55th percentile: 368 ms
- 50th percentile: 378 ms
- 45th percentile: 390 ms
- 40th percentile: 402 ms
- 35th percentile: 415 ms
- 30th percentile: 430 ms
- 25th percentile: 447 ms
- 20th percentile: 467 ms
- 15th percentile: 492 ms
- 10th percentile: 525 ms
A player with a strong simple RT but a choice RT more than 100ms slower can still lose duels to a player with a slower simple RT but a tighter choice RT gap. Isolated aim-trainer flicking does not close this specific gap, varied stimulus-response drills do.
Reaction Time Consistency Across a Match
CS2 matches run 30 or more rounds over 40 to 70 minutes. Consistency, measured as the coefficient of variation across a full testing session, shows whether a player's speed holds up or drifts as the match wears on.
- 99th percentile: 17.7% CV
- 95th percentile: 26.4% CV
- 90th percentile: 37.2% CV
- 85th percentile: 38.3% CV
- 80th percentile: 39.2% CV
- 75th percentile: 40% CV
- 70th percentile: 40.8% CV
- 65th percentile: 42% CV
- 60th percentile: 43.3% CV
- 55th percentile: 44.2% CV
- 50th percentile: 45% CV
Players stuck at Legendary Eagle Master for a long stretch often show a CV above 45 percent, meaning their fastest and slowest rounds differ dramatically. A consistent warmup routine before competitive play is one of the most direct ways to tighten this number without touching raw speed at all.
Composure Under Pressure at Legendary Eagle Master
The NeuroRank composure score measures how much accuracy and speed hold up when a distraction condition is introduced, a reasonable proxy for performance in a clutch 1v2 or 1v3.
- 99th percentile: 111
- 95th percentile: 108
- 90th percentile: 106.1
- 85th percentile: 105
- 80th percentile: 103.6
- 75th percentile: 101.4
- 70th percentile: 99
- 65th percentile: 97.3
- 60th percentile: 96.6
- 55th percentile: 95.7
- 50th percentile: 94.5
The composure score is a blended 0 to 120 scale where higher values mean less degradation under pressure. Players climbing from Legendary Eagle Master toward Supreme Master First Class who plateau on mechanics but keep losing close rounds are frequently looking at a composure gap rather than an aim gap.
Training Priorities for Legendary Eagle Master Players
- Test first: A 10 minute combine identifies whether the actual bottleneck is choice RT, consistency, or composure before spending hours training the wrong thing.
- Choice RT training: Stimulus-response drills with varied targets, not pure flicking, close the gap that shows up in real duels.
- Warmup structure: A consistent 10 to 15 minute warmup before the first competitive round reduces session-wide CV and stabilizes reaction time earlier.
- Pressure simulation: Low-stakes practice-partner scenarios that force a decision under time pressure build the composure floor over several weeks.