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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Qi Shi

Bib: 3057 •M •Age: 38

S Plainfield, NJ

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
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
33:46
3.11 mi
Rank: #1501
Start → 5K
33:46 | 10:53/mi
10K
1:07:25
6.21 mi
Rank: #1466 (+35)
5K → 10K
33:39 | 10:50/mi
15K
1:41:02
9.32 mi
Rank: #1441 (+25)
10K → 15K
33:37 | 10:50/mi
20K
2:14:14
12.43 mi
Rank: #1418 (+23)
15K → 20K
33:12 | 10:42/mi
Half
2:21:50
13.10 mi
Rank: #1403 (+15)
20K → Half
7:36 | 11:20/mi
25K
2:47:58
15.53 mi
Rank: #1363 (+40)
Half → 25K
26:08 | 10:44/mi
30K
3:17:30
18.64 mi
Rank: #1319 (+44)
25K → 30K
29:32 | 9:31/mi
35K
3:52:48
21.75 mi
Rank: #1208 (+111)
30K → 35K
35:18 | 11:22/mi
25.2M
4:27:14
25.20 mi
Rank: #1120 (+88)
35K → 25.2M
34:26 | 9:59/mi
Finish
4:37:03
26.22 mi
Rank: #1109 (+11)
25.2M → Finish
9:49 | 9:38/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.10 mi
Time2:21:50
Pace10:50 /mi
2nd Half✓ Faster
Distance13.12 mi
Time2:15:13
Pace10:19 /mi
📊Negative Split: 4.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:4933:4610:5333:46
10:53
-
10K
6.21 mi08:39:281:07:2510:5133:39
10:50
-0:03
15K
9.32 mi09:13:051:41:0210:5133:37
10:50
0:00
20K
12.43 mi09:46:172:14:1410:4933:12
10:42
-0:08
Half
13.10 mi09:53:532:21:5010:507:36
11:20
+0:38
25K
15.53 mi10:20:012:47:5810:4926:08
10:44
-0:36
30K
18.64 mi10:49:333:17:3010:3629:32
9:31
-1:13
35K
21.75 mi11:24:513:52:4810:4335:18
11:22
+1:51
25.2M
25.20 mi11:59:174:27:1410:3734:26
9:59
-1:23
Finish
26.22 mi12:09:064:37:0310:359:49
9:38
-0:21

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

9:31 /mi

Average Pace

10:34 /mi

Slowest Pace

11:22 /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

1:13:47

27% of race

Time at Steady Pace

2:40:22

58% of race

Time at Slower Pace

42:54

15% of race

Average Pace: 10:34 /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 mi08:05:4933:4610:5333:46
10:53
#1501
10K
6.21 mi08:39:281:07:2510:5133:39
10:50
#1466
15K
9.32 mi09:13:051:41:0210:5133:37
10:50
#1441
20K
12.43 mi09:46:172:14:1410:4933:12
10:42
#1418
Half
13.10 mi09:53:532:21:5010:507:36
11:20
#1403
25K
15.53 mi10:20:012:47:5810:4926:08
10:44
#1363
30K
18.64 mi10:49:333:17:3010:3629:32
9:31
#1319
35K
21.75 mi11:24:513:52:4810:4335:18
11:22
#1208
25.2M
25.20 mi11:59:174:27:1410:3734:26
9:59
#1120
Finish
26.22 mi12:09:064:37:0310:359:49
9:38
#1109
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi15019541531421(Top 73%)922(Top 80%)149(Top 84%)
10K6.21 mi3.10 mi1466+35946+8151+21438(Top 74%)929(Top 81%)148(Top 83%)
15K9.32 mi3.11 mi1441+25929+17147+41421(Top 73%)922(Top 80%)149(Top 84%)
20K12.43 mi3.11 mi1418+23918+11145+21354(Top 69%)877(Top 76%)138(Top 78%)
Half13.10 mi0.67 mi1403+15909+9144+11307(Top 67%)857(Top 74%)134(Top 75%)
25K15.53 mi2.43 mi1363+40884+25141+31154(Top 59%)771(Top 67%)125(Top 70%)
30K18.64 mi3.11 mi1319+44858+26136+51106(Top 57%)723(Top 63%)113(Top 63%)
35K21.75 mi3.11 mi1208+111796+62122+14740(Top 38%)492(Top 43%)73(Top 41%)
25.2M25.20 mi3.45 mi1120+88736+60114+8626(Top 32%)411(Top 36%)60(Top 34%)
Finish26.22 mi1.02 mi1109+11727+9114825(Top 42%)524(Top 45%)77(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×1
+26ft-31ft

Overall

1421

Males

922

M35-39

149

5K→10K

3.1 - 6.2 mi

Top 74%
×2
+38ft-17ft

Overall

1438

Males

929

M35-39

148

10K→15K

6.2 - 9.3 mi

Top 73%
×2
+26ft-44ft

Overall

1421

Males

922

M35-39

149

15K→20K

9.3 - 12.4 mi

Top 69%
×1
+35ft-22ft

Overall

1354

Males

877

M35-39

138

20K→Half

12.4 - 13.1 mi

Top 67%
×1
+7ft-13ft

Overall

1307

Males

857

M35-39

134

Half→25K

13.1 - 15.5 mi

Top 59%
×2
+48ft-19ft

Overall

1154

Males

771

M35-39

125

25K→30K

15.5 - 18.6 mi

Top 57%
×2
+38ft-52ft

Overall

1106

Males

723

M35-39

113

30K→35K

18.6 - 21.8 mi

Top 38%
×2
+39ft-39ft

Overall

740

Males

492

M35-39

73

35K→25.2M

21.8 - 25.2 mi

Top 32%
×3
+57ft-58ft

Overall

626

Males

411

M35-39

60

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×1
+17ft-12ft

Overall

825

Males

524

M35-39

77

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
436
Passed By
44
Net Change
+392
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1501
5K → 10K5116+35#1501#1466
10K → 15K305+25#1466#1441
15K → 20K3411+23#1441#1418
20K → Half161+15#1418#1403
Half → 25K488+40#1403#1363
25K → 30K451+44#1363#1319
30K → 35K1121+111#1319#1208
35K → 25.2M880+88#1208#1120
25.2M → Finish121+11#1120#1109
TOTALS43644+392
📊

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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