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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Weiling Li

Bib: 2844 •F •Age: 39

New York, NY

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Age Group (F35-39)
Official
#0 / 111
Calculated (F35-39)
#0 / 111
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
37:20
3.11 mi
Rank: #1784
Start → 5K
37:20 | 12:01/mi
10K
1:14:46
6.21 mi
Rank: #1755 (+29)
5K → 10K
37:26 | 12:03/mi
15K
1:54:21
9.32 mi
Rank: #1780 (-25)
10K → 15K
39:35 | 12:45/mi
20K
2:34:15
12.43 mi
Rank: #1777 (+3)
15K → 20K
39:54 | 12:51/mi
Half
2:44:00
13.10 mi
Rank: #1772 (+5)
20K → Half
9:45 | 14:32/mi
25K
3:20:56
15.53 mi
Rank: #1809 (-37)
Half → 25K
36:56 | 15:10/mi
30K
4:02:58
18.64 mi
Rank: #1814 (-5)
25K → 30K
42:02 | 13:32/mi
35K
4:58:55
21.75 mi
Rank: #1830 (-16)
30K → 35K
55:57 | 18:01/mi
25.2M
5:53:11
25.20 mi
Rank: #1834 (-4)
35K → 25.2M
54:16 | 15:44/mi
Finish
6:06:28
26.22 mi
Rank: #1831 (+3)
25.2M → Finish
13:17 | 13:03/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:44:00
Pace12:32 /mi
2nd Half
Distance13.12 mi
Time3:22:28
Pace15:26 /mi
📊Positive Split: 23.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:25:2437:2012:0137:20
12:01
-
10K
6.21 mi09:02:501:14:4612:0237:26
12:03
+0:02
15K
9.32 mi09:42:251:54:2112:1739:35
12:45
+0:42
20K
12.43 mi10:22:192:34:1512:2539:54
12:51
+0:06
Half
13.10 mi10:32:042:44:0012:329:45
14:32
+1:41
25K
15.53 mi11:09:003:20:5612:5736:56
15:10
+0:38
30K
18.64 mi11:51:024:02:5813:0342:02
13:32
-1:38
35K
21.75 mi12:46:594:58:5513:4555:57
18:01
+4:29
25.2M
25.20 mi13:41:155:53:1114:0154:16
15:44
-2:17
Finish
26.22 mi13:54:326:06:2814:0013:17
13:03
-2:41

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

12:01 /mi

Average Pace

13:59 /mi

Slowest Pace

18:01 /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

1:14:46

20% of race

Time at Steady Pace

2:14:48

37% of race

Time at Slower Pace

2:36:54

43% of race

Average Pace: 13:59 /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 mi08:25:2437:2012:0137:20
12:01
#1784
10K
6.21 mi09:02:501:14:4612:0237:26
12:03
#1755
15K
9.32 mi09:42:251:54:2112:1739:35
12:45
#1780
20K
12.43 mi10:22:192:34:1512:2539:54
12:51
#1777
Half
13.10 mi10:32:042:44:0012:329:45
14:32
#1772
25K
15.53 mi11:09:003:20:5612:5736:56
15:10
#1809
30K
18.64 mi11:51:024:02:5813:0342:02
13:32
#1814
35K
21.75 mi12:46:594:58:5513:4555:57
18:01
#1830
25.2M
25.20 mi13:41:155:53:1114:0154:16
15:44
#1834
Finish
26.22 mi13:54:326:06:2814:0013:17
13:03
#1831
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 mi1784685941806(Top 93%)694(Top 88%)93(Top 84%)
10K6.21 mi3.10 mi1755+29665+2090+41740(Top 89%)656(Top 83%)88(Top 79%)
15K9.32 mi3.11 mi1780-25679-1493-31806(Top 93%)694(Top 88%)93(Top 84%)
20K12.43 mi3.11 mi1777+3680-1931782(Top 91%)687(Top 87%)94(Top 85%)
Half13.10 mi0.67 mi1772+5680931834(Top 94%)730(Top 92%)104(Top 94%)
25K15.53 mi2.43 mi1809-37701-2197-41863(Top 96%)752(Top 95%)104(Top 94%)
30K18.64 mi3.11 mi1814-5708-799-21818(Top 93%)721(Top 91%)102(Top 92%)
35K21.75 mi3.11 mi1830-16717-998+11827(Top 94%)738(Top 93%)103(Top 93%)
25.2M25.20 mi3.45 mi1834-4720-399-11807(Top 93%)731(Top 92%)103(Top 93%)
Finish26.22 mi1.02 mi1831+3721-1991692(Top 87%)679(Top 86%)100(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×1
+26ft-31ft

Overall

1806

Females

694

F35-39

93

5K→10K

3.1 - 6.2 mi

Top 89%
×2
+38ft-17ft

Overall

1740

Females

656

F35-39

88

10K→15K

6.2 - 9.3 mi

Top 93%
×2
+26ft-44ft

Overall

1806

Females

694

F35-39

93

15K→20K

9.3 - 12.4 mi

Top 91%
×1
+35ft-22ft

Overall

1782

Females

687

F35-39

94

20K→Half

12.4 - 13.1 mi

Top 94%
×1
+7ft-13ft

Overall

1834

Females

730

F35-39

104

Half→25K

13.1 - 15.5 mi

Top 96%
×2
+48ft-19ft

Overall

1863

Females

752

F35-39

104

25K→30K

15.5 - 18.6 mi

Top 93%
×2
+38ft-52ft

Overall

1818

Females

721

F35-39

102

30K→35K

18.6 - 21.8 mi

Top 94%
×2
+39ft-39ft

Overall

1827

Females

738

F35-39

103

35K→25.2M

21.8 - 25.2 mi

Top 93%
×3
+57ft-58ft

Overall

1807

Females

731

F35-39

103

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×1
+17ft-12ft

Overall

1692

Females

679

F35-39

100

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
99
Passed By
146
Net Change
-47
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1784
5K → 10K4314+29#1784#1755
10K → 15K429-25#1755#1780
15K → 20K118+3#1780#1777
20K → Half127+5#1777#1772
Half → 25K340-37#1772#1809
25K → 30K914-5#1809#1814
30K → 35K521-16#1814#1830
35K → 25.2M610-4#1830#1834
25.2M → Finish63+3#1834#1831
TOTALS99146-47
📊

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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