VirtuSlo 4Endurance League 2026
VirtuSlo 4Endurance League is a race series with 6 races over a 6 week period.
Races will be held on Sunday from 11th January 2026 till 15th February 2026.
Zone 1 at 10:00 CET / 09:00 UTC
Zone 2 at 18:05 CET / 17:05 UTC
PRIZES
Pre-Registration for PRIZES required for Slovenia, Italy, Croatia, Germany, Austria, United Kingdom, Spain, France, Portugal and European Union
Event: VirtuSlo 4Endurance GELS League
PEN -> zFTP W/kg / zMAP Wkg
A / > 4.4 W/kg / > 5.3 W/kg
B / < 4.4 W/kg / < 5.3 W/kg
C / < 4.0 W/kg / < 4.8 W/kg
D / < 3.7 W/kg / < 4.4 W/kg
Event: VirtuSlo 4Endurance BARS League
PEN -> zFTP W/kg / zMAP Wkg / Compound Score (5min Wkg * 5min Watts)
B / < 3.4 W/kg / < 4 W/kg / < 1450
C / < 3.1 W/kg / < 3.65 W/kg / < 1200
D / < 2.8 W/kg / < 3.3 W/kg / < 1000
E / < 2.5 W/kg / < 2.9 W/kg / < 800
– Race Control Review always reserves the right to review and reassign a classification at any time where the underlying data misclassifies a rider or a rider is clearly competing at the wrong level.
* Upgrades will include Time Penalty (example: Pen C to B is +1min, Pen D to B is +2min).
LEAGUE SCHEDULE
Stage 1: 11.Jan’26
GELS – Watopia, Big Flat 8 – 2 Laps (60.7km – 212m)
BARS – Watopia, Big Flat 8 – 1 Lap (31.5km – 109m)
Stage 2: 18.Jan’26
GELS – Yorkshire, Royal Pump Room 8 – 2 Laps (55.4km – 980m)
BARS – Yorkshire, Double Loop – 1 Lap (29.7km – 547m)
Stage 3: 25.Jan’26
GELS – Innsbruck, Achterbahn – 1 Lap (47.7km – 990m)
BARS – Innsbruck, 2018 UCI Worlds Course Short Lap – 1 Lap (23.9km – 496m)
Stage 4: 01.Feb’26
GELS – Greatest London Flat – 2 Laps (54.6km – 386m)
BARS – London Calling – 1 Lap (31.7km – 211m)
Stage 5: 08.Feb’26
GELS – New York, Double Parked – 1 Lap (42.2km – 330m)
BARS – New York, Watts The Limit – 1 Lap (31.0km – 219m)
Stage 6: 15.Feb’26
GELS – Watopia, WBR Climbing Series – 1 Lap (43.7km – 1116m)
BARS – Watopia, Climbers Gambit – 1 Lap (28.0km – 671m)
LEAGUE CLASSIFICATION
- The winner of the day is rider First Across the Finish Line.
- The winner overall in the category will be the one with the highest cumulative score of 5 best races out of 6 (worst result will be deleted after week 3).
- To score points rider must finish the stage and be listed in Zwiftpower results.
- Riders daily finishing rank translates into League Points.
- Riders Highest Category during the 4Endurance League will be taken for the Overall Category Points Classification.
- Zwiftpower VirtuSlo 4Endurance League will show unofficial General Classification.
LEAGUE Points
Event: VirtuSlo 4Endurance GELS League
| Pen A | 200 | 196 | 193 | 191 | 190 | 189 | 188 | 187 | 186 | 185 | … | 1pt |
| Pen B | 180 | 176 | 173 | 171 | 170 | 169 | 168 | 167 | 166 | 165 | … | 1pt |
| Pen C | 160 | 156 | 153 | 151 | 150 | 149 | 148 | 147 | 146 | 145 | … | 1pt |
| Pen D | 140 | 136 | 133 | 131 | 130 | 129 | 128 | 127 | 126 | 125 | … | 1pt |
Event: VirtuSlo 4Endurance BARS League
| Pen B | 120 | 116 | 113 | 111 | 110 | 109 | 108 | 107 | 106 | 105 | … | 1pt |
| Pen C | 100 | 96 | 93 | 91 | 90 | 89 | 88 | 87 | 86 | 85 | … | 1pt |
| Pen D | 80 | 76 | 73 | 71 | 70 | 69 | 68 | 67 | 66 | 65 | … | 1pt |
| Pen E | 60 | 56 | 53 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | … | 1pt |
MANDATORY REQUIREMENTS
- Zwift Activities must be saved PUBLIC for verification.
- World Tour Level Performances above the limits stated below must be supported by DUAL POWER Recordings uploaded to Zwiftpower and with margin off error of less than 4%. Outside KOM efforts on Strava can be used for verification of Dual Power analysis.
*MEN: above 4.8W/kg or 350W for 20min, 5.5W/kg or 425W for 5min, 9W/kg for 1min.
**WOMEN: above 4.5W/kg or 280W for 20min, 5W/kg or 325w for 5min, 7.5W/kg for 1min.
RULES AND RACE Settings
- No Powerups
- No TT Bikes
- Minimum Trainer Difficulty 30% (NO ERG)
- Participants must be registered on zwiftpower.com to be included in the results
- Smart trainer or Power Meter required with Cadence sensor Paired is required.
- Heart Rate Monitor required.
- No Indoor Bikes without Controlled Resistance (Cadence=Power)
- Sticky Watts or unusual pedalling technique to get an unrealistic advantage will result in DQ
- The organizer reserves the right to disqualify a participant for any other justified reason.
Zwiftpower results: questions, complaints, etc., please contact us at virtuslocc@gmail.com
– Any complaints must be submitted within 24 hours of the start of the event.
– Official results will be published by Wednesday of the respective week.
– No result corrections will be accepted after publication of Official Results.
Zwiftpower Disqualification Codes
DQ_NOT_PUBLIC – activities that aren’t public (before you save, set the activity to public or set it as default)
DQ_NO_POWER – missing power. As per rules, every rider is required at least one power source.
DQ_HR – heart rate monitor required in this race.
DQ_ELITE_POWER – elite performance without DualPower. See above for power/wkg cut-off.
DQ_STICKY_WATTS – flagged sticky watts.
DQ_NO_CADENCE – missing cadence.
DQ_ERG_MODE – ERG mode not allowed.
DQ_MICROBURSTS – microbursts detected.
DQ_DUAL_ERROR – dual power data error margin exceeded. See above for clarification.
DQ_FLAGGED_SPINNING – spinning bike not allowed.
Important note: We are 100% dependent on Zwiftpower monitoring and their statistical service.