Everyone has played the first round of the night and whiffed a shot they would hit nine times out of ten an hour later. Most players shrug it off as bad luck. It is not luck. It is predictable, it is measurable, and it costs the most at exactly the wrong moment: the opening duel of a ranked game.
We measured it in our own players, then checked what independent research says. They agree.
What our players' data shows
Online Aim Trainer records a skill score for every run. To isolate warm-up from everything else, we looked only at the same player playing the same drill twice in the same session, so player, drill and sensitivity are all held fixed. That gave us 7,584 pairs from 1,899 players, played a median of 8 minutes apart.
The difficulty level did not change between the two attempts (it moved by 0.02 levels on average), so this is not the game going easier on anyone. Same player, same drill, same settings, a few minutes apart: the second run is simply better.
The first repeat does most of the work, then gains shrink. Skill score (accuracy against the target bar) tells the same story: 71.9 on the first attempt, 74.9 on the second, 74.5 on the third.
Show the numbers
| Group | Value | Sample |
|---|---|---|
| 1st → 2nd attempt | +8.4% | 3,082 sessions, 955 players |
| 2nd → 3rd attempt | +3.2% | same sessions |
Some drills need it more than others
The warm-up effect was largest on the drills that demand continuous control: tracking, multi-target and moving-target precision.
Tracking is the most cold-sensitive skill we measured, which is why our routine starts with it.
Show the numbers
| Group | Value | Sample |
|---|---|---|
| Track | +13.0% | 1,274 pairs |
| Multishot | +12.8% | 477 pairs |
| Motionshot Precision | +12.3% | 435 pairs |
| Flick | +10.1% | 2,718 pairs |
| Micro Adjust | +5.7% | 1,481 pairs |
| Motionshot Speed | +4.5% | 462 pairs |
| Headshot | +4.0% | 737 pairs |
Newer players lose the most to a cold start
The cold penalty shrinks with experience, but it never disappears. Players in their first 10 runs gained 12.7% on the second attempt; players with 11 to 50 runs gained 6.7%; players with more than 50 runs still gained 3.1%. Part of the beginners' jump is plain learning, but even experienced players start every session below their level.
And the gain does not carry over
Here is the clearest sign this is warm-up, not skill. We compared the last attempt at a drill in one session with the first attempt at it in the player's next session. On average, players started the next session 0.6 points below where they finished (95% CI −0.86 to −0.28), whether the gap was two hours or two days. The skill you built mostly stayed; the warm-up did not.
What the research says
Motor-learning researchers have studied this since the 1950s under the name warm-up decrement: the drop in performance on a motor skill after a break, which recovers within a few attempts.1 Modern models describe two processes running at once: slow, lasting learning, and a fast, temporary "warm-up" component that resets between sessions and degrades performance "at the beginning of the next practice session."2 That is exactly the saw-tooth pattern in our data.
It shows up wherever precision matters:
- Pro darts. In 36,168 scores from the 2017 PDC World Championship, the first dart of each visit was less accurate than the next two.3
- A controlled lab test. After stepping away for about 30 seconds, people's first hammer strike missed by 14.75 mm, against 9.53 mm on the second: about 55% worse.4
- Aim Lab. In 682,564 Gridshot runs by 7,174 players, hits per second climbed steeply over the first few runs of each day before levelling off.5 (That study was funded by Aim Lab's maker, so weigh it accordingly.)
- Surgeons. In a randomized trial of 51 surgeons and residents, a 3–5 minute virtual-reality warm-up cut task time by 29 seconds and produced fewer errors than 10 minutes of reading.6
Warm up with aim, not with "a game"
The best real-world evidence on Valorant is a 2026 analysis of about 175,000 players' ranked histories by the stats site OTPStats.9 Taken together, "any warm-up" before ranked made no difference to win rate. But when players warmed up with Deathmatch or Team Deathmatch, their ranked win rate rose by 0.9 percentage points (95% CI 0.47–1.34) compared with their own cold starts. Unrated and custom games showed nothing. Timing mattered too: a warm-up within 15 minutes of queueing beat one an hour or two earlier.
A one-point win rate gain sounds small, but matchmaking pushes everyone toward 50%, so small shifts are what real effects look like. That study is observational and not peer-reviewed, and it cannot see aim-trainer warm-ups at all. But its direction matches everything above: warm up the specific skill, close to when you play.
Why five minutes
No study has compared a 5-minute aim warm-up against other lengths, so here is what the evidence actually supports:
- The first one or two attempts do most of the work. In our data, skill score peaks on the second attempt. In the darts and hammering studies, the biggest jump is from attempt one to two.3,4
- Three runs get you almost all the way. In our data, a drill played first in a session ran 5.1% below the player's own average. After three runs of anything, that gap was down to 0.5%.
- More is not better. Esports players' forearm muscles fatigue progressively over 90–120 minute sessions and did not recover after a 10-minute break.10 A warm-up should leave you sharp, not tired.
So: four or five one-minute runs, covering different skills, right before you queue. That is five minutes.
The 5-minute warm-up
- Set Online Aim Trainer to your exact in-game sensitivity (convert it here if you play something other than Valorant).
- Track, 60 seconds. The most cold-sensitive skill, so do it first.
- Flick, 60 seconds. Snap to targets and stop dead.
- Micro Adjust, 60 seconds. Small corrections onto the head.
- Multishot or Headshot, 60 seconds.
- One more run of whichever drill felt worst. Then queue straight away: the effect fades the longer you wait.
There is a fuller breakdown of each step in our 5-minute Valorant warm-up routine. And if you lose the feeling mid-match, see the 30-second reset.