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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Robert Kirkman

Bib: 10 •M •Age: 55

Chesapeake, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 36%
Gender (Male)
#0 / 1153
Top 43%
Masters (Masters Men)
#0 / 398
Top 40%
Age Group (M55-59)
#0 / 61
Top 38%
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
27:37
3.11 mi
Rank: #732
Start → 5K
27:37 | 8:54/mi
10K
55:17
6.21 mi
Rank: #722 (+10)
5K → 10K
27:40 | 8:55/mi
15K
1:23:25
9.32 mi
Rank: #751 (-29)
10K → 15K
28:08 | 9:04/mi
20K
1:50:25
12.43 mi
Rank: #709 (+42)
15K → 20K
27:00 | 8:42/mi
Half
1:56:50
13.10 mi
Rank: #708 (+1)
20K → Half
6:25 | 9:34/mi
25K
2:19:02
15.53 mi
Rank: #695 (+13)
Half → 25K
22:12 | 9:07/mi
30K
2:44:53
18.64 mi
Rank: #692 (+3)
25K → 30K
25:51 | 8:20/mi
35K
3:18:18
21.75 mi
Rank: #657 (+35)
30K → 35K
33:25 | 10:46/mi
25.2M
3:56:27
25.20 mi
Rank: #683 (-26)
35K → 25.2M
38:09 | 11:04/mi
Finish
4:07:58
26.22 mi
Rank: #708 (-25)
25.2M → Finish
11:31 | 11:19/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:56:50
Pace8:56 /mi
2nd Half
Distance13.12 mi
Time2:11:09
Pace10:00 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:4227:378:5427:37
8:54
-
10K
6.21 mi08:31:2255:178:5427:40
8:55
+0:01
15K
9.32 mi08:59:301:23:258:5728:08
9:04
+0:09
20K
12.43 mi09:26:301:50:258:5427:00
8:42
-0:22
Half
13.10 mi09:32:551:56:508:566:25
9:34
+0:52
25K
15.53 mi09:55:072:19:028:5822:12
9:07
-0:27
30K
18.64 mi10:20:582:44:538:5125:51
8:20
-0:47
35K
21.75 mi10:54:233:18:189:0833:25
10:46
+2:26
25.2M
25.20 mi11:32:323:56:279:2338:09
11:04
+0:18
Finish
26.22 mi11:44:034:07:589:2811:31
11:19
+0:15

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

8:20 /mi

Average Pace

9:28 /mi

Slowest Pace

11:19 /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

25:51

10% of race

Time at Steady Pace

2:19:02

56% of race

Time at Slower Pace

1:23:05

34% of race

Average Pace: 9:27 /mi

Loading chart...
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 mi08:03:4227:378:5427:37
8:54
#732
10K
6.21 mi08:31:2255:178:5427:40
8:55
#722
15K
9.32 mi08:59:301:23:258:5728:08
9:04
#751
20K
12.43 mi09:26:301:50:258:5427:00
8:42
#709
Half
13.10 mi09:32:551:56:508:566:25
9:34
#708
25K
15.53 mi09:55:072:19:028:5822:12
9:07
#695
30K
18.64 mi10:20:582:44:538:5125:51
8:20
#692
35K
21.75 mi10:54:233:18:189:0833:25
10:46
#657
25.2M
25.20 mi11:32:323:56:279:2338:09
11:04
#683
Finish
26.22 mi11:44:034:07:589:2811:31
11:19
#708
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi73252525801(Top 41%)570(Top 49%)27(Top 44%)
10K6.21 mi3.10 mi722+10519+626-1727(Top 37%)523(Top 45%)25(Top 41%)
15K9.32 mi3.11 mi751-29541-2226801(Top 41%)570(Top 49%)27(Top 44%)
20K12.43 mi3.11 mi709+42519+2226620(Top 32%)455(Top 39%)22(Top 36%)
Half13.10 mi0.67 mi708+1518+126722(Top 37%)525(Top 46%)26(Top 43%)
25K15.53 mi2.43 mi695+13506+1226629(Top 32%)455(Top 39%)23(Top 38%)
30K18.64 mi3.11 mi692+3500+624+2707(Top 36%)499(Top 43%)25(Top 41%)
35K21.75 mi3.11 mi657+35469+3124603(Top 31%)413(Top 36%)21(Top 34%)
25.2M25.20 mi3.45 mi683-26479-1023+1920(Top 47%)571(Top 50%)29(Top 48%)
Finish26.22 mi1.02 mi708-25493-14231361(Top 70%)826(Top 72%)37(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×1
+26ft-31ft

Overall

801

Males

570

M55-59

27

5K→10K

3.1 - 6.2 mi

Top 37%
×2
+38ft-17ft

Overall

727

Males

523

M55-59

25

10K→15K

6.2 - 9.3 mi

Top 41%
×2
+26ft-44ft

Overall

801

Males

570

M55-59

27

15K→20K

9.3 - 12.4 mi

Top 32%
×1
+35ft-22ft

Overall

620

Males

455

M55-59

22

20K→Half

12.4 - 13.1 mi

Top 37%
×1
+7ft-13ft

Overall

722

Males

525

M55-59

26

Half→25K

13.1 - 15.5 mi

Top 32%
×2
+48ft-19ft

Overall

629

Males

455

M55-59

23

25K→30K

15.5 - 18.6 mi

Top 36%
×2
+38ft-52ft

Overall

707

Males

499

M55-59

25

30K→35K

18.6 - 21.8 mi

Top 31%
×2
+39ft-39ft

Overall

603

Males

413

M55-59

21

35K→25.2M

21.8 - 25.2 mi

Top 47%
×3
+57ft-58ft

Overall

920

Males

571

M55-59

29

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×1
+17ft-12ft

Overall

1361

Males

826

M55-59

37

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
184
Passed By
160
Net Change
+24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#732
5K → 10K2111+10#732#722
10K → 15K534-29#722#751
15K → 20K431+42#751#709
20K → Half54+1#709#708
Half → 25K185+13#708#695
25K → 30K2421+3#695#692
30K → 35K5621+35#692#657
35K → 25.2M1238-26#657#683
25.2M → Finish025-25#683#708
TOTALS184160+24
📊

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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