Chorzów, October 4, 2026
Silesia Half Marathon Pacing Plan
Shares the Stadion Śląski start/finish in Chorzów's Park Śląski with the full marathon and covers the same four-city footprint (Katowice, Mysłowice, Siemianowice Śląskie and Chorzów) on a shorter loop. PZLA/World Athletics-certified at 21.0975 km, it passes the Dolina Trzech Stawów and Katowice's post-industrial Strefa Kultury district before looping back through Park Śląski to the stadium.
Weather is a 10-year seasonal average for this course's location and month, not a forecast for a specific date. See FAQ.
Distance
21.1 km
Elevation gain
+81m / -80m
Typically run in
October
Typical race-day weather
10°C, 13 km/h
Elevation profile
Sample strategy: 1:45:00 goal
A real, AI-generated excerpt of what Splitshape produces for this exact course, not a hand-written example. Upload your own goal and recent results to get the full plan.
KM 1-4: The opening kilometers are deceptively fast: 4:35/km on km 1 and 4:37/km on km 4 as the course dips downhill, sandwiching two flatter kilometers into a headwind at 5:06 and 5:05/km. Don't let the early downhill sections trick you into banking time, this is terrain-driven, not a gift. Sit into the effort and let the pace bounce with the grade, you cross km 4 at 19:23.
KM 5-9: This stretch rolls gently, 4:50 to 4:48/km through km 5-6, easing to 5:01/km on km 7 into a headwind, then 4:52/km on km 8 with a tailwind push, before km 9's uphill grade slows you to 5:11/km. Nothing dramatic here, just small grade shifts and shifting wind. Treat it as the calm before the course gets serious: hold form, don't force the pace down on the tailwind kilometers, and you'll pass 44:05 at km 9 in good shape.
KM 10-14: Kilometers 10 through 14 sit close to average pace, 4:51 down to 4:49/km with a tailwind behind you, then drifting to 5:03/km on km 13 as the grade ticks up slightly. This is the last genuinely comfortable stretch before the course turns uphill for real. Use the tailwind here to relax, not to surge, you're at 1:08:35 through km 14 and still on schedule.
Frequently asked questions
Is the Silesia Half Marathon course flat or hilly?
With only 81 m of elevation gain and 80 m of loss over 21.1 km, the course is essentially flat, with just gentle undulations spread across the loop through Katowice, Mysłowice, Siemianowice Śląskie and Chorzów. This minimal elevation change means pacing decisions will be driven more by wind and effort management than by hill strategy.
Can I run an even-split pacing strategy on this course?
Yes, since gain and loss are nearly balanced (81 m up, 80 m down) and there are no sustained climbs, an even-split approach is realistic here rather than adjusting effort for terrain. The main variable to plan around is the 13.4 km/h average wind, which can affect steady pacing more than the elevation profile does.
What weather should I expect on race day in Chorzów/Katowice?
Typical race-day conditions are around 9.5°C with wind near 13.4 km/h, cool but manageable weather for half marathon effort. Runners should plan clothing layers for a cool start and account for wind exposure along the loop through Park Śląski and the Dolina Trzech Stawów.
Does the half marathon share the same route as the full marathon?
The half marathon starts and finishes at Stadion Śląski in Park Śląski, the same venue as the full marathon, and covers the same four-city footprint of Katowice, Mysłowice, Siemianowice Śląskie and Chorzów, but on a shorter loop. It passes through Katowice's Strefa Kultury district and the Dolina Trzech Stawów before looping back to the stadium, giving a condensed version of the marathon course.
Is the Silesia Half Marathon course certified, and does that matter for pacing?
The course is PZLA/World Athletics-certified at the official 21.0975 km distance, so GPS-based pacing plans built on the exact distance should track reliably without needing to adjust for a long or short course. Combined with the flat 81 m gain/80 m loss profile, this makes it straightforward to target a specific finish time with consistent per-kilometer splits.
Build your Silesia Half Marathon plan
Upload your own GPX or use Silesia Half Marathon's course, set your goal and recent results, and get the full km-by-km strategy.
Build my Silesia Half Marathon plan →Splitshape is an independent pacing-plan tool and is not an official partner, sponsor, or affiliate of the Silesia Half Marathon or its organizers. Course data source: official course page.