Mattoni Karlovy Vary Half Marathon

Karlovy Vary, Czechia · May 15, 2027
partly-cloudy-day59°·59° high·Breezy·Dry
8

Mattoni Karlovy Vary Half Marathon race day weather

partly-cloudy-day
59°at start
60° high
Breezy
Dry
Your goal
0:00:00

Cool conditions, moderate wind impact

Runners will face a start temperature of 59°F, gradually dropping to 56°F by finish. Winds from the north will reach 9 mph, creating a notable but manageable headwind at times. With humidity at 65%, pacing adjustments may be necessary, particularly in the later laps as temperatures decline. Runners should stay hydrated and consider a light throwaway layer before the race due to the slight chance of rain.

Race day forecast available in 168 days
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partly-cloudy-night10
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Pace Calculator

13.1mi
0:00:00
HH:MM:SS
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Mattoni Karlovy Vary Half Marathon route and elevation

The Mattoni Karlovy Vary Half Marathon course has about 394 ft (120 m) of climbing and 416 ft (127 m) of descent, a net drop of about 22 ft (7 m). It is hillier than 51% of the half marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 2, with 63 ft (19 m) of climbing.

Biggest climbs

  • Start to mile 1.3: climbs about 50 ft (16 m).
  • Miles 8.6 to 9.6: climbs about 65 ft (21 m).

What the hills cost

  • 1:45 on a flat course is about 1:45:25 here (25 seconds slower).
  • 2:00 on a flat course is about 2:00:30 here (30 seconds slower).
  • 2:15 on a flat course is about 2:15:30 here (30 seconds slower).

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 1:45, 2:00 or 2:15 finish
The Mattoni Karlovy Vary Half Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent1:452:002:15
153 ft21 ft8:139:2410:35
263 ft49 ft8:069:1510:24
335 ft73 ft7:508:5710:04
421 ft43 ft7:539:0010:08
510 ft20 ft7:569:0510:13
615 ft20 ft7:589:0610:14
721 ft21 ft7:589:0610:15
825 ft24 ft8:009:0810:16
941 ft16 ft8:119:2110:31
1041 ft20 ft8:099:1910:29
1130 ft12 ft8:079:1710:26
1249 ft76 ft7:528:5910:07
1322 ft53 ft7:518:5910:06
Last 0.15 ft0 ft0:561:041:12

Explore the Mattoni Karlovy Vary Half Marathon course with the weather and your pace along the route, or compare it with other races.

Race Plan

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A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

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About the Mattoni Karlovy Vary Half Marathon

Karlovy Vary is the site of numerous hot springs and is the most visited spa town in the Czech Republic. The city has been used as the location for a number of film-shoots, including the 2006 films Last Holiday and box-office hit Casino Royale, both of which used the city's Grandhotel Pupp in different guises. Moreover, the Palace Bristol Hotel in Karlovy Vary had been used as a model for The Grand Budapest Hotel movie. Source

Race weekend

Saturday, May 15
2:00 PMVaryáda 10km Run (6.2 mi)
2:00 PMdm Bambini Run (0.1 mi)
4:00 PMdm Family Mile (1.0 mi)
6:00 PMMattoni Half Marathon Karlovy Vary (13.1 mi)
6:00 PMHalf Marathon Relay Karlovy Vary (13.1 mi)

Mattoni Karlovy Vary Half Marathon FAQ

When is the 2027 Mattoni Karlovy Vary Half Marathon?

The 2027 Mattoni Karlovy Vary Half Marathon will be held on Saturday May 15, 2027.

What is the time limit for the Mattoni Karlovy Vary Half Marathon?

The time limit for the Mattoni Karlovy Vary Half Marathon is 3 hours.

What will the weather be like for the 2027 Mattoni Karlovy Vary Half Marathon?

The forecast calls for a high of 65°F and a low of 47°F with a 12% chance of rain.

What is the elevation gain of the Mattoni Karlovy Vary Half Marathon?

The Mattoni Karlovy Vary Half Marathon course has about 394 ft (120 m) of climbing and 416 ft (127 m) of descent, a net drop of about 22 ft (7 m). It is hillier than 51% of the half marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Mattoni Karlovy Vary Half Marathon hilly?

Moderately. It has about 30 ft (9 m) of climbing per mile. The hardest mile is mile 2, with 63 ft (19 m) of climbing. 2:00 on a flat course is about 2:00:30 here (30 seconds slower).

What is the weather usually like for the Mattoni Karlovy Vary Half Marathon?

Over the 12 years racecast.io has race-day weather for (2014 to 2026), it averaged 60°F at the start and 60°F by a typical finish. Rain fell during race hours in 2 of those years (2023 and 2025).

What was the hottest Mattoni Karlovy Vary Half Marathon?

Of the 12 years on record, 2021 was the warmest, reaching 70°F during race hours. The coldest start was 2026, at 44°F.

What was the windiest Mattoni Karlovy Vary Half Marathon?

Of the 12 years on record, 2023 was the windiest, with wind averaging 13 mph during race hours. The calmest was 2016, at 4 mph.

Mattoni Karlovy Vary Half Marathon weather history

Based on 12 years of data
Avg Temp
59°F
L:58° H:60°
RunScore
8
Conditions
Rain Freq
17%
2 of 12 yrs
Wind8mph
Dew45°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
41°/44°-
9
2025
partly-cloudy-day
51°/54°Light
9
2024
partly-cloudy-day
56°/58°-
8
2023
rain
65°/68°Light
6
2022
partly-cloudy-day
58°/60°-
8
2021
partly-cloudy-day
65°/70°-
6
2019
partly-cloudy-day
59°/63°-
7
2018
partly-cloudy-day
55°/62°-
8
2017
partly-cloudy-day
57°/59°-
9
2016
partly-cloudy-day
66°/67°-
7
2015
partly-cloudy-day
58°/59°-
9
2014
partly-cloudy-day
61°/62°-
7