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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Catherine England

Bib: 2143 •F •Age: 36

Yorktown, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 37%
Gender (Female)
#0 / 791
Top 28%
Age Group (F35-39)
Official
#0 / 111
Calculated (F35-39)
#0 / 111
Top 26%
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
29:13
3.11 mi
Rank: #972
Start → 5K
29:13 | 9:25/mi
10K
57:01
6.21 mi
Rank: #875 (+97)
5K → 10K
27:48 | 8:57/mi
15K
1:24:49
9.32 mi
Rank: #815 (+60)
10K → 15K
27:48 | 8:57/mi
20K
1:52:17
12.43 mi
Rank: #782 (+33)
15K → 20K
27:28 | 8:51/mi
Half
1:58:19
13.10 mi
Rank: #764 (+18)
20K → Half
6:02 | 9:00/mi
25K
2:20:20
15.53 mi
Rank: #732 (+32)
Half → 25K
22:01 | 9:03/mi
30K
2:45:54
18.64 mi
Rank: #720 (+12)
25K → 30K
25:34 | 8:14/mi
35K
3:22:44
21.75 mi
Rank: #746 (-26)
30K → 35K
36:50 | 11:52/mi
25.2M
3:59:03
25.20 mi
Rank: #726 (+20)
35K → 25.2M
36:19 | 10:32/mi
Finish
4:08:25
26.22 mi
Rank: #716 (+10)
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
Time1:58:19
Pace9:02 /mi
2nd Half
Distance13.12 mi
Time2:10:07
Pace9:56 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:13:5429:139:2529:13
9:25
-
10K
6.21 mi08:41:4257:019:1127:48
8:57
-0:28
15K
9.32 mi09:09:301:24:499:0627:48
8:57
0:00
20K
12.43 mi09:36:581:52:179:0327:28
8:51
-0:06
Half
13.10 mi09:43:001:58:199:026:02
9:00
+0:09
25K
15.53 mi10:05:012:20:209:0322:01
9:03
+0:03
30K
18.64 mi10:30:352:45:548:5425:34
8:14
-0:49
35K
21.75 mi11:07:253:22:449:2036:50
11:52
+3:38
25.2M
25.20 mi11:43:443:59:039:3036:19
10:32
-1:20
Finish
26.22 mi11:53:064:08:259:299:22
9:12
-1:20

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

8:14 /mi

Average Pace

9:29 /mi

Slowest Pace

11:52 /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

25:34

10% of race

Time at Steady Pace

2:29:42

60% of race

Time at Slower Pace

1:13:09

29% of race

Average Pace: 9:28 /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 mi08:13:5429:139:2529:13
9:25
#972
10K
6.21 mi08:41:4257:019:1127:48
8:57
#875
15K
9.32 mi09:09:301:24:499:0627:48
8:57
#815
20K
12.43 mi09:36:581:52:179:0327:28
8:51
#782
Half
13.10 mi09:43:001:58:199:026:02
9:00
#764
25K
15.53 mi10:05:012:20:209:0322:01
9:03
#732
30K
18.64 mi10:30:352:45:548:5425:34
8:14
#720
35K
21.75 mi11:07:253:22:449:2036:50
11:52
#746
25.2M
25.20 mi11:43:443:59:039:3036:19
10:32
#726
Finish
26.22 mi11:53:064:08:259:299:22
9:12
#716
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
5K3.11 mi3.11 mi97229038741(Top 38%)211(Top 27%)28(Top 25%)
10K6.21 mi3.10 mi875+97250+4033+5748(Top 38%)211(Top 27%)28(Top 25%)
15K9.32 mi3.11 mi815+60236+1432+1741(Top 38%)211(Top 27%)28(Top 25%)
20K12.43 mi3.11 mi782+33224+1230+2699(Top 36%)188(Top 24%)27(Top 24%)
Half13.10 mi0.67 mi764+18217+728+2473(Top 24%)115(Top 15%)16(Top 14%)
25K15.53 mi2.43 mi732+32204+1326+2602(Top 31%)163(Top 21%)22(Top 20%)
30K18.64 mi3.11 mi720+12202+226670(Top 34%)193(Top 24%)27(Top 24%)
35K21.75 mi3.11 mi746-26215-1329-3876(Top 45%)305(Top 39%)38(Top 34%)
25.2M25.20 mi3.45 mi726+20218-329766(Top 39%)282(Top 36%)38(Top 34%)
Finish26.22 mi1.02 mi716+1021829648(Top 33%)232(Top 29%)34(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×1
+26ft-31ft

Overall

741

Females

211

F35-39

28

5K→10K

3.1 - 6.2 mi

Top 38%
×2
+38ft-17ft

Overall

748

Females

211

F35-39

28

10K→15K

6.2 - 9.3 mi

Top 38%
×2
+26ft-44ft

Overall

741

Females

211

F35-39

28

15K→20K

9.3 - 12.4 mi

Top 36%
×1
+35ft-22ft

Overall

699

Females

188

F35-39

27

20K→Half

12.4 - 13.1 mi

Top 24%
×1
+7ft-13ft

Overall

473

Females

115

F35-39

16

Half→25K

13.1 - 15.5 mi

Top 31%
×2
+48ft-19ft

Overall

602

Females

163

F35-39

22

25K→30K

15.5 - 18.6 mi

Top 34%
×2
+38ft-52ft

Overall

670

Females

193

F35-39

27

30K→35K

18.6 - 21.8 mi

Top 45%
×2
+39ft-39ft

Overall

876

Females

305

F35-39

38

35K→25.2M

21.8 - 25.2 mi

Top 39%
×3
+57ft-58ft

Overall

766

Females

282

F35-39

38

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×1
+17ft-12ft

Overall

648

Females

232

F35-39

34

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
343
Passed By
87
Net Change
+256
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#972
5K → 10K992+97#972#875
10K → 15K622+60#875#815
15K → 20K352+33#815#782
20K → Half180+18#782#764
Half → 25K353+32#764#732
25K → 30K2311+12#732#720
30K → 35K2450-26#720#746
35K → 25.2M3414+20#746#726
25.2M → Finish133+10#726#716
TOTALS34387+256
📊

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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