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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Grace Covelli

Bib: 2456 •F •Age: 27

Silver Spring, MD

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Age Group (F25-29)
Official
#0 / 180
Calculated (F25-29)
#0 / 180
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
49:26
3.11 mi
Rank: #1947
Start → 5K
49:26 | 15:55/mi
10K
1:29:23
6.21 mi
Rank: #1926 (+21)
5K → 10K
39:57 | 12:52/mi
15K
2:10:45
9.32 mi
Rank: #1919 (+7)
10K → 15K
41:22 | 13:19/mi
20K
2:53:54
12.43 mi
Rank: #1911 (+8)
15K → 20K
43:09 | 13:54/mi
Half
3:02:09
13.10 mi
Rank: #1899 (+12)
20K → Half
8:15 | 12:18/mi
25K
3:41:14
15.53 mi
Rank: #1909 (-10)
Half → 25K
39:05 | 16:03/mi
30K
4:25:20
18.64 mi
Rank: #1909
25K → 30K
44:06 | 14:12/mi
35K
5:24:51
21.75 mi
Rank: #1909
30K → 35K
59:31 | 19:10/mi
25.2M
6:17:18
25.20 mi
Rank: #1903 (+6)
35K → 25.2M
52:27 | 15:12/mi
Finish
6:29:18
26.22 mi
Rank: #1893 (+10)
25.2M → Finish
12:00 | 11:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time3:02:09
Pace13:55 /mi
2nd Half
Distance13.12 mi
Time3:27:09
Pace15:48 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:37:3849:2615:5549:26
15:55
-
10K
6.21 mi09:17:351:29:2314:2439:57
12:52
-3:03
15K
9.32 mi09:58:572:10:4514:0241:22
13:19
+0:27
20K
12.43 mi10:42:062:53:5414:0043:09
13:54
+0:35
Half
13.10 mi10:50:213:02:0913:558:15
12:18
-1:36
25K
15.53 mi11:29:263:41:1414:1539:05
16:03
+3:45
30K
18.64 mi12:13:324:25:2014:1544:06
14:12
-1:51
35K
21.75 mi13:13:035:24:5114:5759:31
19:10
+4:58
25.2M
25.20 mi14:05:306:17:1814:5952:27
15:12
-3:58
Finish
26.22 mi14:17:306:29:1814:5212:00
11:47
-3:25

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

11:47 /mi

Average Pace

14:52 /mi

Slowest Pace

19:10 /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

1:00:12

15% of race

Time at Steady Pace

3:01:04

47% of race

Time at Slower Pace

2:28:02

38% of race

Average Pace: 14:51 /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 mi08:37:3849:2615:5549:26
15:55
#1947
10K
6.21 mi09:17:351:29:2314:2439:57
12:52
#1926
15K
9.32 mi09:58:572:10:4514:0241:22
13:19
#1919
20K
12.43 mi10:42:062:53:5414:0043:09
13:54
#1911
Half
13.10 mi10:50:213:02:0913:558:15
12:18
#1899
25K
15.53 mi11:29:263:41:1414:1539:05
16:03
#1909
30K
18.64 mi12:13:324:25:2014:1544:06
14:12
#1909
35K
21.75 mi13:13:035:24:5114:5759:31
19:10
#1909
25.2M
25.20 mi14:05:306:17:1814:5952:27
15:12
#1903
Finish
26.22 mi14:17:306:29:1814:5212:00
11:47
#1893
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi3.11 mi19477911801863(Top 96%)736(Top 93%)172(Top 96%)
10K6.21 mi3.10 mi1926+21778+13178+21837(Top 94%)714(Top 90%)165(Top 92%)
15K9.32 mi3.11 mi1919+7773+51781863(Top 96%)736(Top 93%)172(Top 96%)
20K12.43 mi3.11 mi1911+8768+5177+11862(Top 96%)737(Top 93%)169(Top 94%)
Half13.10 mi0.67 mi1899+12763+5175+21570(Top 81%)580(Top 73%)145(Top 81%)
25K15.53 mi2.43 mi1909-10767-4177-21901(Top 98%)774(Top 98%)177(Top 98%)
30K18.64 mi3.11 mi19097671771882(Top 97%)758(Top 96%)174(Top 97%)
35K21.75 mi3.11 mi19097671771894(Top 97%)765(Top 97%)178(Top 99%)
25.2M25.20 mi3.45 mi1903+6765+2176+11763(Top 90%)707(Top 89%)167(Top 93%)
Finish26.22 mi1.02 mi1893+10760+5175+11486(Top 76%)590(Top 75%)152(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×1
+26ft-31ft

Overall

1863

Females

736

F25-29

172

5K→10K

3.1 - 6.2 mi

Top 94%
×2
+38ft-17ft

Overall

1837

Females

714

F25-29

165

10K→15K

6.2 - 9.3 mi

Top 96%
×2
+26ft-44ft

Overall

1863

Females

736

F25-29

172

15K→20K

9.3 - 12.4 mi

Top 96%
×1
+35ft-22ft

Overall

1862

Females

737

F25-29

169

20K→Half

12.4 - 13.1 mi

Top 81%
×1
+7ft-13ft

Overall

1570

Females

580

F25-29

145

Half→25K

13.1 - 15.5 mi

Top 98%
×2
+48ft-19ft

Overall

1901

Females

774

F25-29

177

25K→30K

15.5 - 18.6 mi

Top 97%
×2
+38ft-52ft

Overall

1882

Females

758

F25-29

174

30K→35K

18.6 - 21.8 mi

Top 97%
×2
+39ft-39ft

Overall

1894

Females

765

F25-29

178

35K→25.2M

21.8 - 25.2 mi

Top 90%
×3
+57ft-58ft

Overall

1763

Females

707

F25-29

167

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×1
+17ft-12ft

Overall

1486

Females

590

F25-29

152

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
73
Passed By
19
Net Change
+54
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1947
5K → 10K210+21#1947#1926
10K → 15K70+7#1926#1919
15K → 20K80+8#1919#1911
20K → Half120+12#1911#1899
Half → 25K212-10#1899#1909
25K → 30K110#1909#1909
30K → 35K550#1909#1909
35K → 25.2M71+6#1909#1903
25.2M → Finish100+10#1903#1893
TOTALS7319+54
📊

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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