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Scratch
What Is a Scratch Race?
The scratch race is a classic mass-start discipline in track cycling. All riders start simultaneously from the start line – "from scratch", with no head start or handicap. Only the order across the finish line after the prescribed distance counts.
Unlike the points race, the scratch has no intermediate sprints, no bonus points and no eliminations during the race. Unlike the elimination race, no one is eliminated while riding. The format looks simple but is highly complex tactically – and is a fixed part of the Omnium as well as many national championships.
Scratch Race from Start to Finish
Rules and Distances According to the UCI
At international competitions of the Union Cycliste Internationale (UCI), fixed distances apply on the standardized 250-meter oval:
Key Rule Basics
- All riders start simultaneously; a staggered start is not permitted.
- There are no intermediate classifications – only the finishing order counts.
- Riders must comply with track rules and positioning: the upper line (fast lane) must not be blocked, and overtaking maneuvers must be executed safely.
- Crashes and equipment failures are handled according to UCI regulations; a restart is possible in certain situations.
- In the event of a tie, a photo finish determines the exact finishing order.
Important: In the scratch, the fastest sprinter does not automatically win. Anyone riding from position 15 or further back in the last three laps has practically no realistic chance of victory – regardless of sprint performance.
The Three Phases of a Scratch Race
Early Phase: Peloton Formation and Energy Conservation
In the first 15 to 20 laps, a shared race pace is established. Riders use drafting intensively and observe competitors. Early breakaway attempts are rarely successful but can test weaker riders and put psychological pressure on the field.
Typical characteristics of this phase:
- Relatively steady, moderate pace
- No large gaps in the field
- Riders in the rear rows save up to 30 percent energy in the draft
- Occasional short attacks that are usually caught
Middle Phase: Pace Control and Field Split
Between lap 20 and 45 (for men over 15 km), it is decided whether the race stays calm or breaks apart. Powerful rouleurs try to increase the pace so that the field splits. Sprint-oriented teams keep the pace high enough to prevent long-term breakaways.
Field Split in the Scratch
Closed field: All riders in a compact group on the 250-m oval – steady pace, no decisive gap.
Split field: Front group with few riders, significant gap, chasing group behind – triggered by a pace increase from a strong rouleur in the middle phase.
Final Phase: Positioning and Final Sprint
The last 5 to 10 laps are decisive. Riders fight for positions in the front rows (top 3 to top 5). Anyone too far back loses contact in the final sprint – even with excellent sprint performance.
- Lap minus 5: Work forward slowly without full exhaustion.
- Lap minus 3: Secure a position in the top 8.
- Lap minus 1: Push into the top 5.
- Finish line: Explosive sprint from optimal position.
Basic Tactical Strategies
Successful scratch riders typically follow one of three basic strategies – or combine them situationally:
The Sprint Strategy
Sprinters with good endurance keep the field compact and control the pace. They save energy in the middle of the field and move forward in the final laps. Ideal for riders with explosive top-end speed who can stay with the pace consistently over 60 laps.
The Breakaway Strategy
Powerful endurance riders attack in the middle phase and try to create a gap to the field. If the break succeeds, the lead work decides victory or defeat. Risk: high energy expenditure; if the attack fails, there is not enough energy left for the final sprint.
The Counter Strategy
Tactically skilled riders react to others' attacks, use gaps and briefly join breakaway groups. This strategy requires excellent race reading and strong positioning.
Scratch in the Omnium and at Championships
In the Omnium, the scratch race is one of several disciplines. The placing is converted into Omnium points – the winner receives the highest score, subsequent places correspondingly fewer. The scratch is often the discipline in which the overall classification is decided.
In individual classifications (scratch as a standalone discipline), 20 to 24 riders often start. At national and international championships, the start list is limited to the strongest track riders.
Physical and Technical Requirements
Energy Systems
A 15 km scratch demands all energy systems:
- Aerobic endurance: Foundation for staying with the pace over 50+ laps
- Lactate tolerance: For attacks and pace increases in the middle phase
- Anaerobic capacity: For the final sprint over the last 200 to 400 meters
Equipment and Setup
Scratch riders use the same track bike setup as in other endurance disciplines: fixed gear, no brakes, aerodynamic position. The gear ratio is chosen so that both high cadence in the draft and maximum speed in the sprint are possible.
Energy Expenditure in the Scratch
60–70% of maximum heart rate
80–90% of maximum heart rate
95–100% of maximum heart rate
Training for Scratch Races
Specific Training Sessions
- Track intervals over race distance: Simulation of 40 or 60 laps with varying pace – corresponds to the real race situation.
- Positioning training: Short, intensive intervals focusing on working forward in the field without full exhaustion.
- Sprint under load: After 20 to 30 minutes of track riding, execute a maximum 200-meter sprint – trains the final sprint under fatigue.
- Group rides: Regular training races with multiple riders on the track sharpen tactical awareness.
Checklist: Preparing for a Scratch Race
- ✓ Gear ratio matched to race distance and personal strengths
- ✓ Positioning on the track practiced in the final laps
- ✓ Drafting and overtaking maneuvers mastered safely
- ✓ Race pace over full distance (40/60 laps) trained
- ✓ Sprint under fatigue completed in training simulations
- ✓ Track rules and fast-lane behavior internalized
- ✓ Nutrition and hydration planned for 15–25 minutes of effort
- ✓ Tactical race scenario (sprint vs. breakaway) decided before the start
Common Mistakes and How to Avoid Them
The most common defeat in the scratch is not a lack of sprint speed, but poor positioning in the last five laps.
Common mistakes:
- Going all-out too early: Wasting energy in the first 10 laps that is missing in the finale.
- Riding too far back: In the draft of the last row, you lose every chance in the final sprint.
- Blocking the fast lane: Leads to commissaire intervention or disqualification.
- Underestimating the pace: Over 60 laps, staying with the field is harder than it looks.
- No race tactics: Switching between sprint and breakaway strategy without a plan costs positions.
Tip
Observe in the middle laps which riders attack and which control the pace. Whoever dominates the field gives clues about the likely race dynamics in the finale.
Scratch vs. Other Mass-Start Disciplines
Scratch races sit in the context of other mass-start formats in track cycling. Overview:
- Scratch: Finish classification only, no intermediate points, no eliminations
- Points race: Regular intermediate sprints with points allocation
- Elimination: Last rider each lap is eliminated
- Omnium: Multiple disciplines including scratch with overall points classification
More on the overall context of both formats is provided in the overview article Scratch and Elimination Races.
FAQ: Frequently Asked Questions About the Scratch
FAQ
Q: How long does a scratch race last?
A: For men (15 km) typically 18–22 minutes, for women (10 km) 12–16 minutes – depending on race pace.
Q: Can a breakaway rider win the scratch?
A: Yes, if the break succeeds in the middle phase and the field can no longer close the gap. In practice, however, most scratch races are decided in the final sprint.
Q: What gear ratio is ideal?
A: That depends on the track, race distance and rider strength. Common gear ratios are between 50 and 54 inches for elite riders.
Q: Is scratch an Olympic individual discipline?
A: No, at the Olympics scratch is part of the Omnium. Individual classifications exist at World Championships and national championships.
Q: What happens in a crash?
A: According to UCI regulations, a restart can occur if the crash happens early in the race and certain conditions are met. Details are decided by the commissaire on site.