Laura Kozak

Bib: 2535FAge: 50

Oak Brook, IL

Masters
Chicago 13.1 logo
0:00
0:00
/ mi
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Overall
#0 / 9529
Gender (Female)
#0 / 4721
Masters (Masters Women)
#0 / 1398
Age Group (F50-54)
Official
#0 / 371
Calculated (F50-54)
#0 / 371
Top 49%
Race Day Weather
60°/50°F
clear sky

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
35:50
Rank: #7649
Start5K
35:50 | 11:33/mi
8K· 4.97 mi
56:34
Rank: #7363 (+286)
5K8K
20:44 | 11:08/mi
10K· 6.21 mi
1:10:42
Rank: #7296 (+67)
8K10K
14:08 | 11:23/mi
15K· 9.32 mi
1:45:28
Rank: #6982 (+314)
10K15K
34:46 | 11:12/mi
FINISH· 13.11 mi
2:27:46
Rank: #6724 (+258)
15KFINISH
42:18 | 11:10/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:01:1535:5011:3335:50
11:33
-
8K
4.97 mi08:21:5956:3411:2320:44
11:08
-0:25
10K
6.21 mi08:36:071:10:4211:2314:08
11:23
+0:15
15K
9.32 mi09:10:531:45:2811:1934:46
11:12
-0:11
FINISH
13.11 mi09:53:112:27:4611:1742:18
11:10
-0:02

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

11:08 /mi

Average Pace

11:16 /mi

Slowest Pace

11:33 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:27:46

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:16 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:01:1535:5011:3335:50
11:33
#7649
8K
4.97 mi08:21:5956:3411:2320:44
11:08
#7363
10K
6.21 mi08:36:071:10:4211:2314:08
11:23
#7296
15K
9.32 mi09:10:531:45:2811:1934:46
11:12
#6982
FINISH
13.11 mi09:53:112:27:4611:1742:18
11:10
#6724
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi764933832326524(Top 68%)2650(Top 56%)172(Top 46%)
8K4.97 mi1.86 mi7363+2863175+208219+137017(Top 74%)2953(Top 63%)194(Top 52%)
10K6.21 mi1.24 mi7296+673129+46216+37185(Top 75%)3036(Top 64%)204(Top 55%)
15K9.32 mi3.11 mi6982+3142909+220199+176524(Top 68%)2650(Top 56%)172(Top 46%)
FINISH13.11 mi3.79 mi6724+2582775+134181+186223(Top 65%)2535(Top 54%)154(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×2humans
+11ft-21ft

Overall

6524

Females

2650

F50-54

172

5K→8K

3.1 - 5.0 mi

Top 74%
×2humans
+13ft-3ft

Overall

7017

Females

2953

F50-54

194

8K→10K

5.0 - 6.2 mi

Top 75%
×1human
+8ft-7ft

Overall

7185

Females

3036

F50-54

204

10K→15K

6.2 - 9.3 mi

Top 68%
×1human
+19ft-22ft

Overall

6524

Females

2650

F50-54

172

15K→FINISH

9.3 - 13.1 mi

Top 65%
×1human
+24ft-20ft

Overall

6223

Females

2535

F50-54

154

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1077
Passed By
152
Net Change
+925
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7649
5K8K32943+286#7649#7363
8K10K10235+67#7363#7296
10K15K33420+314#7296#6982
15KFINISH31254+258#6982#6724
TOTALS1077152+925
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Chicago Event Management

Chicago Event Management