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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Joshua Carter

Bib: 1229 •M •Age: 28

Bristow, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 50%
Gender (Male)
#0 / 1153
Age Group (M25-29)
#0 / 240
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
28:33
3.11 mi
Rank: #883
Start → 5K
28:33 | 9:12/mi
10K
57:15
6.21 mi
Rank: #896 (-13)
5K → 10K
28:42 | 9:15/mi
15K
1:26:00
9.32 mi
Rank: #898 (-2)
10K → 15K
28:45 | 9:16/mi
20K
1:54:33
12.43 mi
Rank: #867 (+31)
15K → 20K
28:33 | 9:12/mi
Half
2:01:15
13.10 mi
Rank: #864 (+3)
20K → Half
6:42 | 10:00/mi
25K
2:25:03
15.53 mi
Rank: #861 (+3)
Half → 25K
23:48 | 9:47/mi
30K
2:54:34
18.64 mi
Rank: #890 (-29)
25K → 30K
29:31 | 9:31/mi
35K
3:34:07
21.75 mi
Rank: #918 (-28)
30K → 35K
39:33 | 12:44/mi
25.2M
4:15:52
25.20 mi
Rank: #961 (-43)
35K → 25.2M
41:45 | 12:06/mi
Finish
4:26:41
26.22 mi
Rank: #966 (-5)
25.2M → Finish
10:49 | 10:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:01:15
Pace9:16 /mi
2nd Half
Distance13.12 mi
Time2:25:27
Pace11:06 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:06:4528:339:1228:33
9:12
-
10K
6.21 mi08:35:2757:159:1328:42
9:15
+0:03
15K
9.32 mi09:04:121:26:009:1428:45
9:16
+0:01
20K
12.43 mi09:32:451:54:339:1428:33
9:12
-0:04
Half
13.10 mi09:39:272:01:159:166:42
10:00
+0:48
25K
15.53 mi10:03:152:25:039:2123:48
9:47
-0:13
30K
18.64 mi10:32:462:54:349:2229:31
9:31
-0:16
35K
21.75 mi11:12:193:34:079:5139:33
12:44
+3:13
25.2M
25.20 mi11:54:044:15:5210:1041:45
12:06
-0:38
Finish
26.22 mi12:04:534:26:4110:1110:49
10:37
-1:29

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

9:12 /mi

Average Pace

10:11 /mi

Slowest Pace

12:44 /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

0:00

0% of race

Time at Steady Pace

2:54:34

65% of race

Time at Slower Pace

1:32:07

35% of race

Average Pace: 10:10 /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 mi08:06:4528:339:1228:33
9:12
#883
10K
6.21 mi08:35:2757:159:1328:42
9:15
#896
15K
9.32 mi09:04:121:26:009:1428:45
9:16
#898
20K
12.43 mi09:32:451:54:339:1428:33
9:12
#867
Half
13.10 mi09:39:272:01:159:166:42
10:00
#864
25K
15.53 mi10:03:152:25:039:2123:48
9:47
#861
30K
18.64 mi10:32:462:54:349:2229:31
9:31
#890
35K
21.75 mi11:12:193:34:079:5139:33
12:44
#918
25.2M
25.20 mi11:54:044:15:5210:1041:45
12:06
#961
Finish
26.22 mi12:04:534:26:4110:1110:49
10:37
#966
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi883630138892(Top 46%)637(Top 55%)138(Top 57%)
10K6.21 mi3.10 mi896-13637-7138909(Top 47%)640(Top 56%)136(Top 57%)
15K9.32 mi3.11 mi898-2636+1139-1892(Top 46%)637(Top 55%)138(Top 57%)
20K12.43 mi3.11 mi867+31618+18131+8839(Top 43%)601(Top 52%)128(Top 53%)
Half13.10 mi0.67 mi864+3618130+1872(Top 45%)620(Top 54%)130(Top 54%)
25K15.53 mi2.43 mi861+3616+2135-5852(Top 44%)604(Top 52%)129(Top 54%)
30K18.64 mi3.11 mi890-29629-13136-11105(Top 57%)722(Top 63%)145(Top 60%)
35K21.75 mi3.11 mi918-28628+11361102(Top 57%)699(Top 61%)147(Top 61%)
25.2M25.20 mi3.45 mi961-43642-14138-21197(Top 61%)724(Top 63%)158(Top 66%)
Finish26.22 mi1.02 mi966-5640+2139-11176(Top 60%)730(Top 63%)161(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×1
+26ft-31ft

Overall

892

Males

637

M25-29

138

5K→10K

3.1 - 6.2 mi

Top 47%
×2
+38ft-17ft

Overall

909

Males

640

M25-29

136

10K→15K

6.2 - 9.3 mi

Top 46%
×2
+26ft-44ft

Overall

892

Males

637

M25-29

138

15K→20K

9.3 - 12.4 mi

Top 43%
×1
+35ft-22ft

Overall

839

Males

601

M25-29

128

20K→Half

12.4 - 13.1 mi

Top 45%
×1
+7ft-13ft

Overall

872

Males

620

M25-29

130

Half→25K

13.1 - 15.5 mi

Top 44%
×2
+48ft-19ft

Overall

852

Males

604

M25-29

129

25K→30K

15.5 - 18.6 mi

Top 57%
×2
+38ft-52ft

Overall

1105

Males

722

M25-29

145

30K→35K

18.6 - 21.8 mi

Top 57%
×2
+39ft-39ft

Overall

1102

Males

699

M25-29

147

35K→25.2M

21.8 - 25.2 mi

Top 61%
×3
+57ft-58ft

Overall

1197

Males

724

M25-29

158

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×1
+17ft-12ft

Overall

1176

Males

730

M25-29

161

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
141
Passed By
224
Net Change
-83
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#883
5K → 10K2134-13#883#896
10K → 15K1416-2#896#898
15K → 20K343+31#898#867
20K → Half74+3#867#864
Half → 25K2118+3#864#861
25K → 30K837-29#861#890
30K → 35K2250-28#890#918
35K → 25.2M1154-43#918#961
25.2M → Finish38-5#961#966
TOTALS141224-83
📊

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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