All Results|Race Analytics|Course|Contact

Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Tiffany Helfer

Bib: 3285 •F •Age: 40

Gambrills, MD

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Gender (Female)
#0 / 791
Masters (Masters Women)
#0 / 277
Age Group (F40-44)
Official
#0 / 100
Calculated (F40-44)
#0 / 100
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
41:59
3.11 mi
Rank: #1908
Start → 5K
41:59 | 13:31/mi
10K
1:27:35
6.21 mi
Rank: #1923 (-15)
5K → 10K
45:36 | 14:41/mi
15K
2:12:34
9.32 mi
Rank: #1923
10K → 15K
44:59 | 14:29/mi
20K
2:57:59
12.43 mi
Rank: #1921 (+2)
15K → 20K
45:25 | 14:38/mi
Half
3:07:33
13.10 mi
Rank: #1911 (+10)
20K → Half
9:34 | 14:16/mi
25K
3:43:36
15.53 mi
Rank: #1915 (-4)
Half → 25K
36:03 | 14:49/mi
30K
4:25:41
18.64 mi
Rank: #1911 (+4)
25K → 30K
42:05 | 13:33/mi
35K
5:21:30
21.75 mi
Rank: #1902 (+9)
30K → 35K
55:49 | 17:58/mi
25.2M
6:16:39
25.20 mi
Rank: #1901 (+1)
35K → 25.2M
55:09 | 15:59/mi
Finish
6:30:53
26.22 mi
Rank: #1898 (+3)
25.2M → Finish
14:14 | 13:59/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time3:07:33
Pace14:20 /mi
2nd Half
Distance13.12 mi
Time3:23:21
Pace15:30 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:26:0841:5913:3141:59
13:31
-
10K
6.21 mi09:11:441:27:3514:0645:36
14:41
+1:10
15K
9.32 mi09:56:432:12:3414:1444:59
14:29
-0:12
20K
12.43 mi10:42:082:57:5914:2045:25
14:38
+0:09
Half
13.10 mi10:51:423:07:3314:209:34
14:16
-0:22
25K
15.53 mi11:27:453:43:3614:2436:03
14:49
+0:33
30K
18.64 mi12:09:504:25:4114:1642:05
13:33
-1:16
35K
21.75 mi13:05:395:21:3014:4755:49
17:58
+4:25
25.2M
25.20 mi14:00:486:16:3914:5755:09
15:59
-1:59
Finish
26.22 mi14:15:026:30:5314:5614:14
13:59
-2:00

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

13:31 /mi

Average Pace

14:55 /mi

Slowest Pace

17:58 /mi

Loading chart...
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

1:38:18

25% of race

Time at Steady Pace

3:01:37

46% of race

Time at Slower Pace

1:50:58

28% of race

Average Pace: 14:54 /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 mi08:26:0841:5913:3141:59
13:31
#1908
10K
6.21 mi09:11:441:27:3514:0645:36
14:41
#1923
15K
9.32 mi09:56:432:12:3414:1444:59
14:29
#1923
20K
12.43 mi10:42:082:57:5914:2045:25
14:38
#1921
Half
13.10 mi10:51:423:07:3314:209:34
14:16
#1911
25K
15.53 mi11:27:453:43:3614:2436:03
14:49
#1915
30K
18.64 mi12:09:504:25:4114:1642:05
13:33
#1911
35K
21.75 mi13:05:395:21:3014:4755:49
17:58
#1902
25.2M
25.20 mi14:00:486:16:3914:5755:09
15:59
#1901
Finish
26.22 mi14:15:026:30:5314:5614:14
13:59
#1898
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi1908767941911(Top 98%)769(Top 97%)96(Top 96%)
10K6.21 mi3.10 mi1923-15776-997-31922(Top 99%)776(Top 98%)96(Top 96%)
15K9.32 mi3.11 mi1923777-1971911(Top 98%)769(Top 97%)96(Top 96%)
20K12.43 mi3.11 mi1921+2776+1971903(Top 98%)766(Top 97%)96(Top 96%)
Half13.10 mi0.67 mi1911+10773+3971812(Top 93%)714(Top 90%)90(Top 90%)
25K15.53 mi2.43 mi1915-4772+1971831(Top 94%)729(Top 92%)93(Top 93%)
30K18.64 mi3.11 mi1911+4768+4971821(Top 93%)724(Top 92%)93(Top 93%)
35K21.75 mi3.11 mi1902+9763+596+11821(Top 93%)734(Top 93%)92(Top 92%)
25.2M25.20 mi3.45 mi1901+1764-1961822(Top 93%)737(Top 93%)93(Top 93%)
Finish26.22 mi1.02 mi1898+3764961789(Top 92%)720(Top 91%)91(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×1
+26ft-31ft

Overall

1911

Females

769

F40-44

96

5K→10K

3.1 - 6.2 mi

Top 99%
×2
+38ft-17ft

Overall

1922

Females

776

F40-44

96

10K→15K

6.2 - 9.3 mi

Top 98%
×2
+26ft-44ft

Overall

1911

Females

769

F40-44

96

15K→20K

9.3 - 12.4 mi

Top 98%
×1
+35ft-22ft

Overall

1903

Females

766

F40-44

96

20K→Half

12.4 - 13.1 mi

Top 93%
×1
+7ft-13ft

Overall

1812

Females

714

F40-44

90

Half→25K

13.1 - 15.5 mi

Top 94%
×2
+48ft-19ft

Overall

1831

Females

729

F40-44

93

25K→30K

15.5 - 18.6 mi

Top 93%
×2
+38ft-52ft

Overall

1821

Females

724

F40-44

93

30K→35K

18.6 - 21.8 mi

Top 93%
×2
+39ft-39ft

Overall

1821

Females

734

F40-44

92

35K→25.2M

21.8 - 25.2 mi

Top 93%
×3
+57ft-58ft

Overall

1822

Females

737

F40-44

93

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×1
+17ft-12ft

Overall

1789

Females

720

F40-44

91

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
43
Passed By
33
Net Change
+10
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1908
5K → 10K116-15#1908#1923
10K → 15K220#1923#1923
15K → 20K31+2#1923#1921
20K → Half100+10#1921#1911
Half → 25K48-4#1911#1915
25K → 30K51+4#1915#1911
30K → 35K123+9#1911#1902
35K → 25.2M21+1#1902#1901
25.2M → Finish41+3#1901#1898
TOTALS4333+10
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

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
Loading certificate...

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
Share Feedback