Section 5: Rules of Play
5.1 Competition Sequence
All Nordic combined events follow the same fundamental sequence: ski jumping first, then cross-country skiing. The jumping phase determines the start time gaps for the cross-country phase using the Gundersen method. This creates a pursuit-style cross-country race where the first athlete across the finish line wins, making the result immediately clear to spectators.
5.2 The Gundersen Method
- Jumping results (total points from distance + style + wind/gate compensation) are converted into time differences relative to the leader
- Conversion factor (Individual): Each point difference = 4 seconds in cross-country start time gap (e.g., an athlete 10 points behind the jumping leader starts 40 seconds behind)
- Conversion factor (Team): Each point difference = 1.33 seconds per point (since the relay amplifies time differences)
- The jumping leader starts the cross-country at time 0:00; all other athletes start at their calculated time gaps
- This system rewards consistency across both disciplines; a strong jumper who is a weak skier can be caught, and vice versa
5.3 Jumping Phase Rules
- Typically one competition round (one jump per athlete); a provisional/trial round may precede it
- Scored identically to standalone ski jumping: distance points + 5 style judges (highest and lowest dropped, 3 remaining scores summed) + wind/gate compensation
- Athletes jump in reverse order of FIS points ranking (best athletes jump last for optimal conditions)
- Gate and wind compensation: points added or subtracted based on in-run gate position and wind conditions to ensure fairness
- Telemark landing (one foot ahead of the other) is essential for full style marks; a two-footed landing results in deductions
5.4 Cross-Country Phase Rules
- Free technique (skating) used exclusively in Nordic combined cross-country
- Individual: 10 km race (2.5 or 5 km laps through the stadium)
- Team relay: 4×5 km with body-contact exchange in the 30 m exchange zone
- Athletes may be lapped; lapped athletes must yield the preferred line
- Feed zones at approximately 5 km intervals for drinks (no solid food typically needed for 10 km)
5.5 Compact Format (World Cup)
FIS has introduced compact formats for World Cup events to increase spectator appeal. The Compact Individual format features a shorter cross-country distance (e.g., 7.5 km) with a tighter point-to-time conversion, compressing the field for closer finishes. Mass Start events reverse the order, with cross-country first and jumping second, using a time-to-points conversion. These formats are used at select World Cup events but not yet at the Olympics.