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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Kevin Klotz

Bib: 1017 •M •Age: 35

Gaithersburg, MD

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 36%
Gender (Male)
#0 / 1153
Top 42%
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
Top 39%
Race Day Weather
71°/61°F
overcast clouds

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
28:43
3.11 mi
Rank: #909
Start → 5K
28:43 | 9:15/mi
10K
57:00
6.21 mi
Rank: #870 (+39)
5K → 10K
28:17 | 9:07/mi
15K
1:25:12
9.32 mi
Rank: #845 (+25)
10K → 15K
28:12 | 9:05/mi
20K
1:53:12
12.43 mi
Rank: #819 (+26)
15K → 20K
28:00 | 9:01/mi
Half
1:59:34
13.10 mi
Rank: #809 (+10)
20K → Half
6:22 | 9:30/mi
25K
2:22:14
15.53 mi
Rank: #785 (+24)
Half → 25K
22:40 | 9:19/mi
30K
2:48:53
18.64 mi
Rank: #793 (-8)
25K → 30K
26:39 | 8:35/mi
35K
3:23:00
21.75 mi
Rank: #752 (+41)
30K → 35K
34:07 | 10:59/mi
25.2M
3:57:52
25.20 mi
Rank: #705 (+47)
35K → 25.2M
34:52 | 10:07/mi
Finish
4:07:14
26.22 mi
Rank: #699 (+6)
25.2M → Finish
9:22 | 9:12/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:59:34
Pace9:08 /mi
2nd Half
Distance13.12 mi
Time2:07:40
Pace9:44 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:0028:439:1528:43
9:15
-
10K
6.21 mi08:31:1757:009:1128:17
9:07
-0:08
15K
9.32 mi08:59:291:25:129:0928:12
9:05
-0:02
20K
12.43 mi09:27:291:53:129:0728:00
9:01
-0:04
Half
13.10 mi09:33:511:59:349:086:22
9:30
+0:29
25K
15.53 mi09:56:312:22:149:1022:40
9:19
-0:11
30K
18.64 mi10:23:102:48:539:0426:39
8:35
-0:44
35K
21.75 mi10:57:173:23:009:2134:07
10:59
+2:24
25.2M
25.20 mi11:32:093:57:529:2734:52
10:07
-0:52
Finish
26.22 mi11:41:314:07:149:279:22
9:12
-0:55

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

8:35 /mi

Average Pace

9:26 /mi

Slowest Pace

10:59 /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

26:39

11% of race

Time at Steady Pace

2:31:36

61% of race

Time at Slower Pace

1:08:59

28% of race

Average Pace: 9:26 /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.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
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 mi08:03:0028:439:1528:43
9:15
#909
10K
6.21 mi08:31:1757:009:1128:17
9:07
#870
15K
9.32 mi08:59:291:25:129:0928:12
9:05
#845
20K
12.43 mi09:27:291:53:129:0728:00
9:01
#819
Half
13.10 mi09:33:511:59:349:086:22
9:30
#809
25K
15.53 mi09:56:312:22:149:1022:40
9:19
#785
30K
18.64 mi10:23:102:48:539:0426:39
8:35
#793
35K
21.75 mi10:57:173:23:009:2134:07
10:59
#752
25.2M
25.20 mi11:32:093:57:529:2734:52
10:07
#705
Finish
26.22 mi11:41:314:07:149:279:22
9:12
#699
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi90964796810(Top 42%)577(Top 50%)89(Top 50%)
10K6.21 mi3.10 mi870+39622+2596823(Top 42%)583(Top 51%)94(Top 53%)
15K9.32 mi3.11 mi845+25603+1995+1810(Top 42%)577(Top 50%)89(Top 50%)
20K12.43 mi3.11 mi819+26585+1892+3776(Top 40%)560(Top 49%)87(Top 49%)
Half13.10 mi0.67 mi809+10579+692678(Top 35%)494(Top 43%)78(Top 44%)
25K15.53 mi2.43 mi785+24565+1488+4698(Top 36%)502(Top 44%)77(Top 43%)
30K18.64 mi3.11 mi793-8568-389-1785(Top 40%)543(Top 47%)80(Top 45%)
35K21.75 mi3.11 mi752+41536+3280+9666(Top 34%)447(Top 39%)63(Top 35%)
25.2M25.20 mi3.45 mi705+47492+4471+9661(Top 34%)428(Top 37%)62(Top 35%)
Finish26.22 mi1.02 mi699+6485+769+2649(Top 33%)416(Top 36%)61(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×1
+26ft-31ft

Overall

810

Males

577

M35-39

89

5K→10K

3.1 - 6.2 mi

Top 42%
×2
+38ft-17ft

Overall

823

Males

583

M35-39

94

10K→15K

6.2 - 9.3 mi

Top 42%
×2
+26ft-44ft

Overall

810

Males

577

M35-39

89

15K→20K

9.3 - 12.4 mi

Top 40%
×1
+35ft-22ft

Overall

776

Males

560

M35-39

87

20K→Half

12.4 - 13.1 mi

Top 35%
×1
+7ft-13ft

Overall

678

Males

494

M35-39

78

Half→25K

13.1 - 15.5 mi

Top 36%
×2
+48ft-19ft

Overall

698

Males

502

M35-39

77

25K→30K

15.5 - 18.6 mi

Top 40%
×2
+38ft-52ft

Overall

785

Males

543

M35-39

80

30K→35K

18.6 - 21.8 mi

Top 34%
×2
+39ft-39ft

Overall

666

Males

447

M35-39

63

35K→25.2M

21.8 - 25.2 mi

Top 34%
×3
+57ft-58ft

Overall

661

Males

428

M35-39

62

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×1
+17ft-12ft

Overall

649

Males

416

M35-39

61

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
281
Passed By
71
Net Change
+210
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#909
5K → 10K4910+39#909#870
10K → 15K349+25#870#845
15K → 20K315+26#845#819
20K → Half100+10#819#809
Half → 25K284+24#809#785
25K → 30K1725-8#785#793
30K → 35K5312+41#793#752
35K → 25.2M514+47#752#705
25.2M → Finish82+6#705#699
TOTALS28171+210
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
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